SLAC Magnetic Measurements Date: 05-02-2002 Time: 11:35:50 Project: Spear3 Magnet Type: Permeameter Magnet Name: BabarSteel_1 Serial Number: Run Number: 5 Measurement Device: permeameter Operator: zw Comment: same dimensions as 96 meas, lowered rr Standardization: 3 cycles from -12.0 A to 12.0 A to -12.0 A Test Currents (A): 0.0 0.2 0.4 0.6 0.8 1.0 2.0 4.0 6.0 8.0 10.0 12.0 10.0 8.0 6.0 4.0 2.0 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -0.4 -0.6 -0.8 -1.0 -2.0 -4.0 -6.0 -8.0 -10.0 -12.0 -10.0 -8.0 -6.0 -4.0 -2.0 -1.0 -0.8 -0.6 -0.4 -0.2 0.0 11:37:45 Hall Probe Zeroed 11:38:20 Hall Probe Type Being Used, type = B9900 11:38:21 Initial Zero Current Measurement, Imag_zero = 0.0000 A 11:38:21 Magnet current ramping to 12.0000 A... 11:38:43 Magnet current ramping to -12.0000 A... 11:39:22 Magnet current ramping to 12.0000 A... 11:40:02 Magnet current ramping to -12.0000 A... 11:40:41 Magnet current ramping to 12.0000 A... 11:41:20 Magnet current ramping to -12.0000 A... 11:41:59 Magnet current ramping to 0.0000 A... 11:43:08 Hall Probe Range Set, range = 4 11:43:08 Hysteresis Loop Measurement Sample Geometry: cylinder 11:43:09 Hall Probe Field Measurement, B = -0.000430 T 11:43:09 Integrated Voltage Measurement... 11:43:10 Magnet current ramping to 0.0000 A... 11:43:24 Voltage Offset Correction: v_off_ini = -0.000003589 V, v_off_fin = -0.000008074 V 11:43:24 Integrated Voltage Measurement Imag = 0.0000 A VT = 0.000061923 Vs 11:43:25 Hall Probe Field Measurement, B = -0.000420 T 11:43:25 Calculate delta B and H from the cylinder Ifin = 0.000000 A B_hall_ini = -0.000430 T B_hall_fin = -0.000420 T VT = 6.192291e-05 V sec N_turns_coil = 180 delta_flux_1_turn = 3.440162e-07 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 1.850502e-10 Tm^2 delta_flux_gap = 2.159889e-10 Tm^2 delta_flux_sample = 3.436151e-07 Tm^2 delta_B = 1.290000e-03 T H_fin = -3.308831e+02 A/m 11:43:25 Measured H and B values: H = -330.883090 A/m B = 0.001290 T 11:43:26 Hall Probe Field Measurement, B = -0.000430 T 11:43:26 Integrated Voltage Measurement... 11:43:27 Magnet current ramping to 0.2000 A... 11:43:43 Voltage Offset Correction: v_off_ini = -0.000010769 V, v_off_fin = 0.000758894 V 11:43:43 Integrated Voltage Measurement Imag = 0.2000 A VT = 0.094157187 Vs 11:43:43 Hall Probe Field Measurement, B = 0.000350 T 11:43:44 Calculate delta B and H from the cylinder Ifin = 0.200000 A B_hall_ini = -0.000430 T B_hall_fin = 0.000350 T VT = 9.415719e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 5.230955e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 1.443391e-08 Tm^2 delta_flux_gap = 1.684714e-08 Tm^2 delta_flux_sample = 5.230642e-04 Tm^2 delta_B = 1.963687e+00 T H_fin = 2.757359e+02 A/m 11:43:44 Measured H and B values: H = 275.735909 A/m B = 1.964977 T 11:43:44 Hall Probe Field Measurement, B = 0.000360 T 11:43:44 Integrated Voltage Measurement... 11:43:45 Magnet current ramping to 0.4000 A... 11:44:01 Voltage Offset Correction: v_off_ini = 0.000031110 V, v_off_fin = 0.000005085 V 11:44:01 Integrated Voltage Measurement Imag = 0.4000 A VT = 0.033375407 Vs 11:44:02 Hall Probe Field Measurement, B = 0.002260 T 11:44:02 Calculate delta B and H from the cylinder Ifin = 0.400000 A B_hall_ini = 0.000360 T B_hall_fin = 0.002260 T VT = 3.337541e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 1.854189e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 3.515953e-08 Tm^2 delta_flux_gap = 4.103790e-08 Tm^2 delta_flux_sample = 1.853427e-04 Tm^2 delta_B = 6.958136e-01 T H_fin = 1.780466e+03 A/m 11:44:02 Measured H and B values: H = 1780.466152 A/m B = 2.660791 T 11:44:02 Hall Probe Field Measurement, B = 0.002260 T 11:44:02 Integrated Voltage Measurement... 11:44:04 Magnet current ramping to 0.6000 A... 11:44:20 Voltage Offset Correction: v_off_ini = -0.000011965 V, v_off_fin = 0.000000598 V 11:44:20 Integrated Voltage Measurement Imag = 0.6000 A VT = 0.006506460 Vs 11:44:20 Hall Probe Field Measurement, B = 0.004830 T 11:44:20 Calculate delta B and H from the cylinder Ifin = 0.600000 A B_hall_ini = 0.002260 T B_hall_fin = 0.004830 T VT = 6.506460e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 3.614700e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.755789e-08 Tm^2 delta_flux_gap = 5.550916e-08 Tm^2 delta_flux_sample = 3.604393e-05 Tm^2 delta_B = 1.353161e-01 T H_fin = 3.805156e+03 A/m 11:44:20 Measured H and B values: H = 3805.155537 A/m B = 2.796107 T 11:44:21 Hall Probe Field Measurement, B = 0.004830 T 11:44:21 Integrated Voltage Measurement... 11:44:22 Magnet current ramping to 0.8000 A... 11:44:38 Voltage Offset Correction: v_off_ini = -0.000003590 V, v_off_fin = -0.000004487 V 11:44:38 Integrated Voltage Measurement Imag = 0.8000 A VT = 0.003436096 Vs 11:44:39 Hall Probe Field Measurement, B = 0.007530 T 11:44:39 Calculate delta B and H from the cylinder Ifin = 0.800000 A B_hall_ini = 0.004830 T B_hall_fin = 0.007530 T VT = 3.436096e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.908942e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.996354e-08 Tm^2 delta_flux_gap = 5.831701e-08 Tm^2 delta_flux_sample = 1.898114e-05 Tm^2 delta_B = 7.125900e-02 T H_fin = 5.932261e+03 A/m 11:44:39 Measured H and B values: H = 5932.261117 A/m B = 2.867366 T 11:44:39 Hall Probe Field Measurement, B = 0.007530 T 11:44:39 Integrated Voltage Measurement... 11:44:40 Magnet current ramping to 1.0000 A... 11:44:57 Voltage Offset Correction: v_off_ini = -0.000001197 V, v_off_fin = -0.000008077 V 11:44:57 Integrated Voltage Measurement Imag = 1.0000 A VT = 0.002472266 Vs 11:44:57 Hall Probe Field Measurement, B = 0.010170 T 11:44:57 Calculate delta B and H from the cylinder Ifin = 1.000000 A B_hall_ini = 0.007530 T B_hall_fin = 0.010170 T VT = 2.472266e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.373481e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.885324e-08 Tm^2 delta_flux_gap = 5.702108e-08 Tm^2 delta_flux_sample = 1.362894e-05 Tm^2 delta_B = 5.116575e-02 T H_fin = 8.012098e+03 A/m 11:44:57 Measured H and B values: H = 8012.097684 A/m B = 2.918532 T 11:44:58 Hall Probe Field Measurement, B = 0.010170 T 11:44:58 Integrated Voltage Measurement... 11:44:59 Magnet current ramping to 2.0000 A... 11:45:20 Voltage Offset Correction: v_off_ini = -0.000001197 V, v_off_fin = -0.000005688 V 11:45:20 Integrated Voltage Measurement Imag = 2.0000 A VT = 0.008176460 Vs 11:45:20 Hall Probe Field Measurement, B = 0.023340 T 11:45:21 Calculate delta B and H from the cylinder Ifin = 2.000000 A B_hall_ini = 0.010170 T B_hall_fin = 0.023340 T VT = 8.176460e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 4.542478e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 2.437111e-07 Tm^2 delta_flux_gap = 2.844574e-07 Tm^2 delta_flux_sample = 4.489661e-05 Tm^2 delta_B = 1.685508e-01 T H_fin = 1.838765e+04 A/m 11:45:21 Measured H and B values: H = 18387.646013 A/m B = 3.087083 T 11:45:21 Hall Probe Field Measurement, B = 0.023320 T 11:45:21 Integrated Voltage Measurement... 11:45:22 Magnet current ramping to 4.0000 A... 11:45:49 Voltage Offset Correction: v_off_ini = -0.000009584 V, v_off_fin = -0.000006889 V 11:45:50 Integrated Voltage Measurement Imag = 4.0000 A VT = 0.007815673 Vs 11:45:50 Hall Probe Field Measurement, B = 0.047770 T 11:45:50 Calculate delta B and H from the cylinder Ifin = 4.000000 A B_hall_ini = 0.023320 T B_hall_fin = 0.047770 T VT = 7.815673e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 4.342040e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.524476e-07 Tm^2 delta_flux_gap = 5.280930e-07 Tm^2 delta_flux_sample = 4.243986e-05 Tm^2 delta_B = 1.593277e-01 T H_fin = 3.763401e+04 A/m 11:45:50 Measured H and B values: H = 37634.012426 A/m B = 3.246410 T 11:45:51 Hall Probe Field Measurement, B = 0.047760 T 11:45:51 Integrated Voltage Measurement... 11:45:52 Magnet current ramping to 6.0000 A... 11:46:18 Voltage Offset Correction: v_off_ini = -0.000008386 V, v_off_fin = -0.000006889 V 11:46:18 Integrated Voltage Measurement Imag = 6.0000 A VT = 0.002614434 Vs 11:46:19 Hall Probe Field Measurement, B = 0.070040 T 11:46:19 Calculate delta B and H from the cylinder Ifin = 6.000000 A B_hall_ini = 0.047760 T B_hall_fin = 0.070040 T VT = 2.614434e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.452463e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.122918e-07 Tm^2 delta_flux_gap = 4.812234e-07 Tm^2 delta_flux_sample = 1.363112e-05 Tm^2 delta_B = 5.117393e-02 T H_fin = 5.517869e+04 A/m 11:46:19 Measured H and B values: H = 55178.694376 A/m B = 3.297584 T 11:46:20 Hall Probe Field Measurement, B = 0.070030 T 11:46:20 Integrated Voltage Measurement... 11:46:21 Magnet current ramping to 8.0000 A... 11:46:48 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000006889 V 11:46:48 Integrated Voltage Measurement Imag = 8.0000 A VT = 0.001552545 Vs 11:46:48 Hall Probe Field Measurement, B = 0.091680 T 11:46:48 Calculate delta B and H from the cylinder Ifin = 8.000000 A B_hall_ini = 0.070030 T B_hall_fin = 0.091680 T VT = 1.552545e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 8.625249e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.006336e-07 Tm^2 delta_flux_gap = 4.676161e-07 Tm^2 delta_flux_sample = 7.756999e-06 Tm^2 delta_B = 2.912132e-02 T H_fin = 7.222705e+04 A/m 11:46:48 Measured H and B values: H = 72227.051690 A/m B = 3.326706 T 11:46:49 Hall Probe Field Measurement, B = 0.091670 T 11:46:49 Integrated Voltage Measurement... 11:46:50 Magnet current ramping to 10.0000 A... 11:47:17 Voltage Offset Correction: v_off_ini = -0.000008087 V, v_off_fin = -0.000008087 V 11:47:17 Integrated Voltage Measurement Imag = 10.0000 A VT = 0.001060015 Vs 11:47:18 Hall Probe Field Measurement, B = 0.108000 T 11:47:18 Calculate delta B and H from the cylinder Ifin = 10.000000 A B_hall_ini = 0.091670 T B_hall_fin = 0.108000 T VT = 1.060015e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 5.888972e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 3.021869e-07 Tm^2 delta_flux_gap = 3.527099e-07 Tm^2 delta_flux_sample = 5.234075e-06 Tm^2 delta_B = 1.964976e-02 T H_fin = 8.508422e+04 A/m 11:47:18 Measured H and B values: H = 85084.223195 A/m B = 3.346355 T 11:47:18 Hall Probe Field Measurement, B = 0.108000 T 11:47:18 Integrated Voltage Measurement... 11:47:19 Magnet current ramping to 12.0000 A... 11:47:46 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000008087 V 11:47:46 Integrated Voltage Measurement Imag = 12.0000 A VT = 0.000632436 Vs 11:47:47 Hall Probe Field Measurement, B = 0.118170 T 11:47:47 Calculate delta B and H from the cylinder Ifin = 12.000000 A B_hall_ini = 0.108000 T B_hall_fin = 0.118170 T VT = 6.324358e-04 V sec N_turns_coil = 180 delta_flux_1_turn = 3.513532e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 1.881960e-07 Tm^2 delta_flux_gap = 2.196608e-07 Tm^2 delta_flux_sample = 3.105675e-06 Tm^2 delta_B = 1.165933e-02 T H_fin = 9.309632e+04 A/m 11:47:47 Measured H and B values: H = 93096.320879 A/m B = 3.358015 T 11:47:47 Hall Probe Field Measurement, B = 0.118160 T 11:47:47 Integrated Voltage Measurement... 11:47:49 Magnet current ramping to 10.0000 A... 11:48:15 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000006889 V 11:48:15 Integrated Voltage Measurement Imag = 10.0000 A VT = -0.000534425 Vs 11:48:16 Hall Probe Field Measurement, B = 0.109530 T 11:48:16 Calculate delta B and H from the cylinder Ifin = 10.000000 A B_hall_ini = 0.118160 T B_hall_fin = 0.109530 T VT = -5.344253e-04 V sec N_turns_coil = 180 delta_flux_1_turn = -2.969029e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -1.596983e-07 Tm^2 delta_flux_gap = -1.863985e-07 Tm^2 delta_flux_sample = -2.622933e-06 Tm^2 delta_B = -9.847012e-03 T H_fin = 8.628958e+04 A/m 11:48:16 Measured H and B values: H = 86289.583024 A/m B = 3.348168 T 11:48:16 Hall Probe Field Measurement, B = 0.109510 T 11:48:16 Integrated Voltage Measurement... 11:48:18 Magnet current ramping to 8.0000 A... 11:48:45 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000008087 V 11:48:45 Integrated Voltage Measurement Imag = 8.0000 A VT = -0.000945604 Vs 11:48:45 Hall Probe Field Measurement, B = 0.094530 T 11:48:45 Calculate delta B and H from the cylinder Ifin = 8.000000 A B_hall_ini = 0.109510 T B_hall_fin = 0.094530 T VT = -9.456042e-04 V sec N_turns_coil = 180 delta_flux_1_turn = -5.253357e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -2.772051e-07 Tm^2 delta_flux_gap = -3.235514e-07 Tm^2 delta_flux_sample = -4.652600e-06 Tm^2 delta_B = -1.746679e-02 T H_fin = 7.447233e+04 A/m 11:48:45 Measured H and B values: H = 74472.329802 A/m B = 3.330701 T 11:48:46 Hall Probe Field Measurement, B = 0.094530 T 11:48:46 Integrated Voltage Measurement... 11:48:47 Magnet current ramping to 6.0000 A... 11:49:14 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000008087 V 11:49:14 Integrated Voltage Measurement Imag = 6.0000 A VT = -0.001513194 Vs 11:49:15 Hall Probe Field Measurement, B = 0.072880 T 11:49:15 Calculate delta B and H from the cylinder Ifin = 6.000000 A B_hall_ini = 0.094530 T B_hall_fin = 0.072880 T VT = -1.513194e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -8.406634e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.006336e-07 Tm^2 delta_flux_gap = -4.676161e-07 Tm^2 delta_flux_sample = -7.538385e-06 Tm^2 delta_B = -2.830060e-02 T H_fin = 5.741609e+04 A/m 11:49:15 Measured H and B values: H = 57416.094319 A/m B = 3.302400 T 11:49:15 Hall Probe Field Measurement, B = 0.072880 T 11:49:15 Integrated Voltage Measurement... 11:49:16 Magnet current ramping to 4.0000 A... 11:49:43 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000006589 V 11:49:43 Integrated Voltage Measurement Imag = 4.0000 A VT = -0.002366581 Vs 11:49:44 Hall Probe Field Measurement, B = 0.050500 T 11:49:44 Calculate delta B and H from the cylinder Ifin = 4.000000 A B_hall_ini = 0.072880 T B_hall_fin = 0.050500 T VT = -2.366581e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.314767e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.141423e-07 Tm^2 delta_flux_gap = -4.833832e-07 Tm^2 delta_flux_sample = -1.225014e-05 Tm^2 delta_B = -4.598948e-02 T H_fin = 3.978475e+04 A/m 11:49:44 Measured H and B values: H = 39784.752512 A/m B = 3.256411 T 11:49:45 Hall Probe Field Measurement, B = 0.050500 T 11:49:45 Integrated Voltage Measurement... 11:49:46 Magnet current ramping to 2.0000 A... 11:50:13 Voltage Offset Correction: v_off_ini = -0.000008386 V, v_off_fin = -0.000009285 V 11:50:13 Integrated Voltage Measurement Imag = 2.0000 A VT = -0.006828554 Vs 11:50:14 Hall Probe Field Measurement, B = 0.026330 T 11:50:14 Calculate delta B and H from the cylinder Ifin = 2.000000 A B_hall_ini = 0.050500 T B_hall_fin = 0.026330 T VT = -6.828554e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -3.793641e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.472662e-07 Tm^2 delta_flux_gap = -5.220453e-07 Tm^2 delta_flux_sample = -3.696710e-05 Tm^2 delta_B = -1.387819e-01 T H_fin = 2.074322e+04 A/m 11:50:14 Measured H and B values: H = 20743.218488 A/m B = 3.117629 T 11:50:14 Hall Probe Field Measurement, B = 0.026330 T 11:50:14 Integrated Voltage Measurement... 11:50:15 Magnet current ramping to 1.0000 A... 11:50:37 Voltage Offset Correction: v_off_ini = -0.000009579 V, v_off_fin = -0.000010477 V 11:50:37 Integrated Voltage Measurement Imag = 1.0000 A VT = -0.007022124 Vs 11:50:37 Hall Probe Field Measurement, B = 0.013250 T 11:50:37 Calculate delta B and H from the cylinder Ifin = 1.000000 A B_hall_ini = 0.026330 T B_hall_fin = 0.013250 T VT = -7.022124e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -3.901180e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -2.420456e-07 Tm^2 delta_flux_gap = -2.825135e-07 Tm^2 delta_flux_sample = -3.848724e-05 Tm^2 delta_B = -1.444888e-01 T H_fin = 1.043857e+04 A/m 11:50:37 Measured H and B values: H = 10438.573679 A/m B = 2.973140 T 11:50:38 Hall Probe Field Measurement, B = 0.013250 T 11:50:38 Integrated Voltage Measurement... 11:50:39 Magnet current ramping to 0.8000 A... 11:50:55 Voltage Offset Correction: v_off_ini = -0.000011965 V, v_off_fin = -0.000004487 V 11:50:55 Integrated Voltage Measurement Imag = 0.8000 A VT = -0.001928367 Vs 11:50:56 Hall Probe Field Measurement, B = 0.010620 T 11:50:56 Calculate delta B and H from the cylinder Ifin = 0.800000 A B_hall_ini = 0.013250 T B_hall_fin = 0.010620 T VT = -1.928367e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.071315e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.866819e-08 Tm^2 delta_flux_gap = -5.680509e-08 Tm^2 delta_flux_sample = -1.060768e-05 Tm^2 delta_B = -3.982333e-02 T H_fin = 8.366615e+03 A/m 11:50:56 Measured H and B values: H = 8366.615281 A/m B = 2.933317 T 11:50:56 Hall Probe Field Measurement, B = 0.010620 T 11:50:56 Integrated Voltage Measurement... 11:50:57 Magnet current ramping to 0.6000 A... 11:51:14 Voltage Offset Correction: v_off_ini = -0.000003590 V, v_off_fin = -0.000015256 V 11:51:14 Integrated Voltage Measurement Imag = 0.6000 A VT = -0.002305366 Vs 11:51:14 Hall Probe Field Measurement, B = 0.007920 T 11:51:14 Calculate delta B and H from the cylinder Ifin = 0.600000 A B_hall_ini = 0.010620 T B_hall_fin = 0.007920 T VT = -2.305366e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.280759e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.996354e-08 Tm^2 delta_flux_gap = -5.831701e-08 Tm^2 delta_flux_sample = -1.269931e-05 Tm^2 delta_B = -4.767574e-02 T H_fin = 6.239510e+03 A/m 11:51:14 Measured H and B values: H = 6239.509701 A/m B = 2.885641 T 11:51:15 Hall Probe Field Measurement, B = 0.007920 T 11:51:15 Integrated Voltage Measurement... 11:51:16 Magnet current ramping to 0.4000 A... 11:51:32 Voltage Offset Correction: v_off_ini = -0.000014358 V, v_off_fin = -0.000009273 V 11:51:32 Integrated Voltage Measurement Imag = 0.4000 A VT = -0.002847733 Vs 11:51:33 Hall Probe Field Measurement, B = 0.005230 T 11:51:33 Calculate delta B and H from the cylinder Ifin = 0.400000 A B_hall_ini = 0.007920 T B_hall_fin = 0.005230 T VT = -2.847733e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.582074e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.977849e-08 Tm^2 delta_flux_gap = -5.810103e-08 Tm^2 delta_flux_sample = -1.571286e-05 Tm^2 delta_B = -5.898921e-02 T H_fin = 4.120282e+03 A/m 11:51:33 Measured H and B values: H = 4120.282290 A/m B = 2.826652 T 11:51:33 Hall Probe Field Measurement, B = 0.005220 T 11:51:33 Integrated Voltage Measurement... 11:51:34 Magnet current ramping to 0.2000 A... 11:51:50 Voltage Offset Correction: v_off_ini = -0.000008376 V, v_off_fin = -0.000004487 V 11:51:50 Integrated Voltage Measurement Imag = 0.2000 A VT = -0.004463041 Vs 11:51:51 Hall Probe Field Measurement, B = 0.002550 T 11:51:51 Calculate delta B and H from the cylinder Ifin = 0.200000 A B_hall_ini = 0.005220 T B_hall_fin = 0.002550 T VT = -4.463041e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -2.479467e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.940839e-08 Tm^2 delta_flux_gap = -5.766905e-08 Tm^2 delta_flux_sample = -2.468760e-05 Tm^2 delta_B = -9.268216e-02 T H_fin = 2.008933e+03 A/m 11:51:51 Measured H and B values: H = 2008.933048 A/m B = 2.733970 T 11:51:52 Hall Probe Field Measurement, B = 0.002550 T 11:51:52 Integrated Voltage Measurement... 11:51:53 Magnet current ramping to 0.0000 A... 11:52:09 Voltage Offset Correction: v_off_ini = -0.000003590 V, v_off_fin = -0.000069099 V 11:52:09 Integrated Voltage Measurement Imag = 0.0000 A VT = -0.016577090 Vs 11:52:09 Hall Probe Field Measurement, B = 0.000310 T 11:52:10 Calculate delta B and H from the cylinder Ifin = 0.000000 A B_hall_ini = 0.002550 T B_hall_fin = 0.000310 T VT = -1.657709e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -9.209494e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.145124e-08 Tm^2 delta_flux_gap = -4.838152e-08 Tm^2 delta_flux_sample = -9.200511e-05 Tm^2 delta_B = -3.454055e-01 T H_fin = 2.442232e+02 A/m 11:52:10 Measured H and B values: H = 244.223233 A/m B = 2.388564 T 11:52:10 Hall Probe Field Measurement, B = 0.000300 T 11:52:10 Integrated Voltage Measurement... 11:52:11 Magnet current ramping to -0.2000 A... 11:52:27 Voltage Offset Correction: v_off_ini = -0.000010769 V, v_off_fin = -0.000548904 V 11:52:27 Integrated Voltage Measurement Imag = -0.2000 A VT = -0.099834310 Vs 11:52:28 Hall Probe Field Measurement, B = -0.000430 T 11:52:28 Calculate delta B and H from the cylinder Ifin = -0.200000 A B_hall_ini = 0.000300 T B_hall_fin = -0.000430 T VT = -9.983431e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -5.546351e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -1.350866e-08 Tm^2 delta_flux_gap = -1.576719e-08 Tm^2 delta_flux_sample = -5.546058e-04 Tm^2 delta_B = -2.082101e+00 T H_fin = -3.387613e+02 A/m 11:52:28 Measured H and B values: H = -338.761259 A/m B = 0.306463 T 11:52:29 Hall Probe Field Measurement, B = -0.000430 T 11:52:29 Integrated Voltage Measurement... 11:52:30 Magnet current ramping to -0.4000 A... 11:52:46 Voltage Offset Correction: v_off_ini = -0.000027520 V, v_off_fin = -0.000015256 V 11:52:46 Integrated Voltage Measurement Imag = -0.4000 A VT = -0.026481345 Vs 11:52:46 Hall Probe Field Measurement, B = -0.002480 T 11:52:46 Calculate delta B and H from the cylinder Ifin = -0.400000 A B_hall_ini = -0.000430 T B_hall_fin = -0.002480 T VT = -2.648134e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -1.471186e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -3.793528e-08 Tm^2 delta_flux_gap = -4.427773e-08 Tm^2 delta_flux_sample = -1.470364e-04 Tm^2 delta_B = -5.520039e-01 T H_fin = -1.953786e+03 A/m 11:52:46 Measured H and B values: H = -1953.785866 A/m B = -0.245540 T 11:52:47 Hall Probe Field Measurement, B = -0.002480 T 11:52:47 Integrated Voltage Measurement... 11:52:48 Magnet current ramping to -0.6000 A... 11:53:04 Voltage Offset Correction: v_off_ini = -0.000015555 V, v_off_fin = -0.000001795 V 11:53:04 Integrated Voltage Measurement Imag = -0.6000 A VT = -0.005933262 Vs 11:53:05 Hall Probe Field Measurement, B = -0.005070 T 11:53:05 Calculate delta B and H from the cylinder Ifin = -0.600000 A B_hall_ini = -0.002480 T B_hall_fin = -0.005070 T VT = -5.933262e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -3.296257e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.792799e-08 Tm^2 delta_flux_gap = -5.594114e-08 Tm^2 delta_flux_sample = -3.285870e-05 Tm^2 delta_B = -1.233581e-01 T H_fin = -3.994232e+03 A/m 11:53:05 Measured H and B values: H = -3994.231589 A/m B = -0.368899 T 11:53:05 Hall Probe Field Measurement, B = -0.005070 T 11:53:05 Integrated Voltage Measurement... 11:53:06 Magnet current ramping to -0.8000 A... 11:53:23 Voltage Offset Correction: v_off_ini = 0.000001197 V, v_off_fin = -0.000006880 V 11:53:23 Integrated Voltage Measurement Imag = -0.8000 A VT = -0.003393952 Vs 11:53:23 Hall Probe Field Measurement, B = -0.007780 T 11:53:23 Calculate delta B and H from the cylinder Ifin = -0.800000 A B_hall_ini = -0.005070 T B_hall_fin = -0.007780 T VT = -3.393952e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.885529e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -5.014859e-08 Tm^2 delta_flux_gap = -5.853300e-08 Tm^2 delta_flux_sample = -1.874661e-05 Tm^2 delta_B = -7.037850e-02 T H_fin = -6.129215e+03 A/m 11:53:23 Measured H and B values: H = -6129.215338 A/m B = -0.439277 T 11:53:24 Hall Probe Field Measurement, B = -0.007780 T 11:53:24 Integrated Voltage Measurement... 11:53:25 Magnet current ramping to -1.0000 A... 11:53:41 Voltage Offset Correction: v_off_ini = -0.000005983 V, v_off_fin = -0.000010470 V 11:53:41 Integrated Voltage Measurement Imag = -1.0000 A VT = -0.002438958 Vs 11:53:42 Hall Probe Field Measurement, B = -0.010430 T 11:53:42 Calculate delta B and H from the cylinder Ifin = -1.000000 A B_hall_ini = -0.007780 T B_hall_fin = -0.010430 T VT = -2.438958e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.354977e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.903829e-08 Tm^2 delta_flux_gap = -5.723707e-08 Tm^2 delta_flux_sample = -1.344349e-05 Tm^2 delta_B = -5.046954e-02 T H_fin = -8.216930e+03 A/m 11:53:42 Measured H and B values: H = -8216.930073 A/m B = -0.489747 T 11:53:42 Hall Probe Field Measurement, B = -0.010430 T 11:53:42 Integrated Voltage Measurement... 11:53:43 Magnet current ramping to -2.0000 A... 11:54:04 Voltage Offset Correction: v_off_ini = -0.000013172 V, v_off_fin = -0.000012573 V 11:54:04 Integrated Voltage Measurement Imag = -2.0000 A VT = -0.008051001 Vs 11:54:05 Hall Probe Field Measurement, B = -0.023590 T 11:54:05 Calculate delta B and H from the cylinder Ifin = -2.000000 A B_hall_ini = -0.010430 T B_hall_fin = -0.023590 T VT = -8.051001e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -4.472778e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -2.435260e-07 Tm^2 delta_flux_gap = -2.842414e-07 Tm^2 delta_flux_sample = -4.420001e-05 Tm^2 delta_B = -1.659357e-01 T H_fin = -1.858460e+04 A/m 11:54:05 Measured H and B values: H = -18584.600233 A/m B = -0.655682 T 11:54:06 Hall Probe Field Measurement, B = -0.023590 T 11:54:06 Integrated Voltage Measurement... 11:54:07 Magnet current ramping to -4.0000 A... 11:54:34 Voltage Offset Correction: v_off_ini = -0.000004792 V, v_off_fin = -0.000005691 V 11:54:34 Integrated Voltage Measurement Imag = -4.0000 A VT = -0.007758384 Vs 11:54:35 Hall Probe Field Measurement, B = -0.048000 T 11:54:35 Calculate delta B and H from the cylinder Ifin = -4.000000 A B_hall_ini = -0.023590 T B_hall_fin = -0.048000 T VT = -7.758384e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -4.310213e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.517074e-07 Tm^2 delta_flux_gap = -5.272290e-07 Tm^2 delta_flux_sample = -4.212320e-05 Tm^2 delta_B = -1.581389e-01 T H_fin = -3.781521e+04 A/m 11:54:35 Measured H and B values: H = -37815.210309 A/m B = -0.813821 T 11:54:35 Hall Probe Field Measurement, B = -0.048010 T 11:54:35 Integrated Voltage Measurement... 11:54:36 Magnet current ramping to -6.0000 A... 11:55:03 Voltage Offset Correction: v_off_ini = -0.000009584 V, v_off_fin = -0.000006889 V 11:55:03 Integrated Voltage Measurement Imag = -6.0000 A VT = -0.002568447 Vs 11:55:04 Hall Probe Field Measurement, B = -0.070290 T 11:55:04 Calculate delta B and H from the cylinder Ifin = -6.000000 A B_hall_ini = -0.048010 T B_hall_fin = -0.070290 T VT = -2.568447e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.426915e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.122918e-07 Tm^2 delta_flux_gap = -4.812234e-07 Tm^2 delta_flux_sample = -1.337564e-05 Tm^2 delta_B = -5.021481e-02 T H_fin = -5.537565e+04 A/m 11:55:04 Measured H and B values: H = -55375.648596 A/m B = -0.864036 T 11:55:05 Hall Probe Field Measurement, B = -0.070290 T 11:55:05 Integrated Voltage Measurement... 11:55:06 Magnet current ramping to -8.0000 A... 11:55:33 Voltage Offset Correction: v_off_ini = -0.000008386 V, v_off_fin = -0.000008087 V 11:55:33 Integrated Voltage Measurement Imag = -8.0000 A VT = -0.001537705 Vs 11:55:34 Hall Probe Field Measurement, B = -0.091910 T 11:55:34 Calculate delta B and H from the cylinder Ifin = -8.000000 A B_hall_ini = -0.070290 T B_hall_fin = -0.091910 T VT = -1.537705e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -8.542807e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -4.000785e-07 Tm^2 delta_flux_gap = -4.669681e-07 Tm^2 delta_flux_sample = -7.675761e-06 Tm^2 delta_B = -2.881634e-02 T H_fin = -7.240825e+04 A/m 11:55:34 Measured H and B values: H = -72408.249573 A/m B = -0.892852 T 11:55:34 Hall Probe Field Measurement, B = -0.091910 T 11:55:34 Integrated Voltage Measurement... 11:55:35 Magnet current ramping to -10.0000 A... 11:56:02 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000006889 V 11:56:02 Integrated Voltage Measurement Imag = -10.0000 A VT = -0.001048365 Vs 11:56:03 Hall Probe Field Measurement, B = -0.108180 T 11:56:03 Calculate delta B and H from the cylinder Ifin = -10.000000 A B_hall_ini = -0.091910 T B_hall_fin = -0.108180 T VT = -1.048365e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -5.824251e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -3.010766e-07 Tm^2 delta_flux_gap = -3.514140e-07 Tm^2 delta_flux_sample = -5.171761e-06 Tm^2 delta_B = -1.941582e-02 T H_fin = -8.522603e+04 A/m 11:56:03 Measured H and B values: H = -85226.030234 A/m B = -0.912268 T 11:56:04 Hall Probe Field Measurement, B = -0.108160 T 11:56:04 Integrated Voltage Measurement... 11:56:05 Magnet current ramping to -12.0000 A... 11:56:32 Voltage Offset Correction: v_off_ini = -0.000008386 V, v_off_fin = -0.000008087 V 11:56:32 Integrated Voltage Measurement Imag = -12.0000 A VT = -0.000608015 Vs 11:56:32 Hall Probe Field Measurement, B = -0.118270 T 11:56:32 Calculate delta B and H from the cylinder Ifin = -12.000000 A B_hall_ini = -0.108160 T B_hall_fin = -0.118270 T VT = -6.080153e-04 V sec N_turns_coil = 180 delta_flux_1_turn = -3.377863e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = -1.870857e-07 Tm^2 delta_flux_gap = -2.183648e-07 Tm^2 delta_flux_sample = -2.972412e-06 Tm^2 delta_B = -1.115903e-02 T H_fin = -9.317510e+04 A/m 11:56:32 Measured H and B values: H = -93175.102567 A/m B = -0.923427 T 11:56:33 Hall Probe Field Measurement, B = -0.118270 T 11:56:33 Integrated Voltage Measurement... 11:56:34 Magnet current ramping to -10.0000 A... 11:57:01 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000006889 V 11:57:01 Integrated Voltage Measurement Imag = -10.0000 A VT = 0.000519015 Vs 11:57:02 Hall Probe Field Measurement, B = -0.109660 T 11:57:02 Calculate delta B and H from the cylinder Ifin = -10.000000 A B_hall_ini = -0.118270 T B_hall_fin = -0.109660 T VT = 5.190147e-04 V sec N_turns_coil = 180 delta_flux_1_turn = 2.883415e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 1.593282e-07 Tm^2 delta_flux_gap = 1.859665e-07 Tm^2 delta_flux_sample = 2.538121e-06 Tm^2 delta_B = 9.528611e-03 T H_fin = -8.639200e+04 A/m 11:57:02 Measured H and B values: H = -86391.999218 A/m B = -0.913899 T 11:57:02 Hall Probe Field Measurement, B = -0.109660 T 11:57:02 Integrated Voltage Measurement... 11:57:03 Magnet current ramping to -8.0000 A... 11:57:30 Voltage Offset Correction: v_off_ini = -0.000008386 V, v_off_fin = -0.000008087 V 11:57:30 Integrated Voltage Measurement Imag = -8.0000 A VT = 0.000961435 Vs 11:57:30 Hall Probe Field Measurement, B = -0.094730 T 11:57:31 Calculate delta B and H from the cylinder Ifin = -8.000000 A B_hall_ini = -0.109660 T B_hall_fin = -0.094730 T VT = 9.614347e-04 V sec N_turns_coil = 180 delta_flux_1_turn = 5.341304e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 2.762799e-07 Tm^2 delta_flux_gap = 3.224715e-07 Tm^2 delta_flux_sample = 4.742553e-06 Tm^2 delta_B = 1.780449e-02 T H_fin = -7.462989e+04 A/m 11:57:31 Measured H and B values: H = -74629.893178 A/m B = -0.896094 T 11:57:31 Hall Probe Field Measurement, B = -0.094750 T 11:57:31 Integrated Voltage Measurement... 11:57:32 Magnet current ramping to -6.0000 A... 11:57:59 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000006589 V 11:57:59 Integrated Voltage Measurement Imag = -6.0000 A VT = 0.001503699 Vs 11:57:59 Hall Probe Field Measurement, B = -0.073120 T 11:57:59 Calculate delta B and H from the cylinder Ifin = -6.000000 A B_hall_ini = -0.094750 T B_hall_fin = -0.073120 T VT = 1.503699e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 8.353886e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.002635e-07 Tm^2 delta_flux_gap = 4.671841e-07 Tm^2 delta_flux_sample = 7.486438e-06 Tm^2 delta_B = 2.810558e-02 T H_fin = -5.760517e+04 A/m 11:58:00 Measured H and B values: H = -57605.170371 A/m B = -0.867988 T 11:58:00 Hall Probe Field Measurement, B = -0.073120 T 11:58:00 Integrated Voltage Measurement... 11:58:01 Magnet current ramping to -4.0000 A... 11:58:28 Voltage Offset Correction: v_off_ini = -0.000007188 V, v_off_fin = -0.000008087 V 11:58:28 Integrated Voltage Measurement Imag = -4.0000 A VT = 0.002339886 Vs 11:58:28 Hall Probe Field Measurement, B = -0.050710 T 11:58:28 Calculate delta B and H from the cylinder Ifin = -4.000000 A B_hall_ini = -0.073120 T B_hall_fin = -0.050710 T VT = 2.339886e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.299937e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.146974e-07 Tm^2 delta_flux_gap = 4.840312e-07 Tm^2 delta_flux_sample = 1.210064e-05 Tm^2 delta_B = 4.542820e-02 T H_fin = -3.995019e+04 A/m 11:58:28 Measured H and B values: H = -39950.194058 A/m B = -0.822560 T 11:58:29 Hall Probe Field Measurement, B = -0.050710 T 11:58:29 Integrated Voltage Measurement... 11:58:30 Magnet current ramping to -2.0000 A... 11:58:57 Voltage Offset Correction: v_off_ini = -0.000008386 V, v_off_fin = -0.000009285 V 11:58:57 Integrated Voltage Measurement Imag = -2.0000 A VT = 0.006810726 Vs 11:58:57 Hall Probe Field Measurement, B = -0.026570 T 11:58:57 Calculate delta B and H from the cylinder Ifin = -2.000000 A B_hall_ini = -0.050710 T B_hall_fin = -0.026570 T VT = 6.810726e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 3.783737e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.467111e-07 Tm^2 delta_flux_gap = 5.213973e-07 Tm^2 delta_flux_sample = 3.686926e-05 Tm^2 delta_B = 1.384145e-01 T H_fin = -2.093229e+04 A/m 11:58:57 Measured H and B values: H = -20932.294540 A/m B = -0.684146 T 11:58:58 Hall Probe Field Measurement, B = -0.026580 T 11:58:58 Integrated Voltage Measurement... 11:58:59 Magnet current ramping to -1.0000 A... 11:59:20 Voltage Offset Correction: v_off_ini = -0.000008382 V, v_off_fin = -0.000008083 V 11:59:20 Integrated Voltage Measurement Imag = -1.0000 A VT = 0.006998735 Vs 11:59:21 Hall Probe Field Measurement, B = -0.013500 T 11:59:21 Calculate delta B and H from the cylinder Ifin = -1.000000 A B_hall_ini = -0.026580 T B_hall_fin = -0.013500 T VT = 6.998735e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 3.888186e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 2.420456e-07 Tm^2 delta_flux_gap = 2.825135e-07 Tm^2 delta_flux_sample = 3.835730e-05 Tm^2 delta_B = 1.440010e-01 T H_fin = -1.063553e+04 A/m 11:59:21 Measured H and B values: H = -10635.527899 A/m B = -0.540145 T 11:59:21 Hall Probe Field Measurement, B = -0.013500 T 11:59:21 Integrated Voltage Measurement... 11:59:22 Magnet current ramping to -0.8000 A... 11:59:38 Voltage Offset Correction: v_off_ini = -0.000004786 V, v_off_fin = -0.000011666 V 11:59:38 Integrated Voltage Measurement Imag = -0.8000 A VT = 0.001918946 Vs 11:59:39 Hall Probe Field Measurement, B = -0.010870 T 11:59:39 Calculate delta B and H from the cylinder Ifin = -0.800000 A B_hall_ini = -0.013500 T B_hall_fin = -0.010870 T VT = 1.918946e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.066081e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.866819e-08 Tm^2 delta_flux_gap = 5.680509e-08 Tm^2 delta_flux_sample = 1.055534e-05 Tm^2 delta_B = 3.962684e-02 T H_fin = -8.563570e+03 A/m 11:59:39 Measured H and B values: H = -8563.569501 A/m B = -0.500518 T 11:59:39 Hall Probe Field Measurement, B = -0.010870 T 11:59:39 Integrated Voltage Measurement... 11:59:41 Magnet current ramping to -0.6000 A... 11:59:57 Voltage Offset Correction: v_off_ini = -0.000007179 V, v_off_fin = -0.000002094 V 11:59:57 Integrated Voltage Measurement Imag = -0.6000 A VT = 0.002255417 Vs 11:59:57 Hall Probe Field Measurement, B = -0.008160 T 11:59:57 Calculate delta B and H from the cylinder Ifin = -0.600000 A B_hall_ini = -0.010870 T B_hall_fin = -0.008160 T VT = 2.255417e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.253009e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 5.014859e-08 Tm^2 delta_flux_gap = 5.853300e-08 Tm^2 delta_flux_sample = 1.242141e-05 Tm^2 delta_B = 4.663246e-02 T H_fin = -6.428586e+03 A/m 11:59:57 Measured H and B values: H = -6428.585753 A/m B = -0.453885 T 11:59:58 Hall Probe Field Measurement, B = -0.008160 T 11:59:58 Integrated Voltage Measurement... 11:59:59 Magnet current ramping to -0.4000 A... 12:00:15 Voltage Offset Correction: v_off_ini = 0.000001197 V, v_off_fin = -0.000006880 V 12:00:15 Integrated Voltage Measurement Imag = -0.4000 A VT = 0.002766398 Vs 12:00:16 Hall Probe Field Measurement, B = -0.005460 T 12:00:16 Calculate delta B and H from the cylinder Ifin = -0.400000 A B_hall_ini = -0.008160 T B_hall_fin = -0.005460 T VT = 2.766398e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.536888e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.996354e-08 Tm^2 delta_flux_gap = 5.831701e-08 Tm^2 delta_flux_sample = 1.526060e-05 Tm^2 delta_B = 5.729133e-02 T H_fin = -4.301480e+03 A/m 12:00:16 Measured H and B values: H = -4301.480173 A/m B = -0.396594 T 12:00:16 Hall Probe Field Measurement, B = -0.005460 T 12:00:16 Integrated Voltage Measurement... 12:00:17 Magnet current ramping to -0.2000 A... 12:00:33 Voltage Offset Correction: v_off_ini = -0.000010769 V, v_off_fin = -0.000003290 V 12:00:33 Integrated Voltage Measurement Imag = -0.2000 A VT = 0.004196103 Vs 12:00:34 Hall Probe Field Measurement, B = -0.002770 T 12:00:34 Calculate delta B and H from the cylinder Ifin = -0.200000 A B_hall_ini = -0.005460 T B_hall_fin = -0.002770 T VT = 4.196103e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 2.331168e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.977849e-08 Tm^2 delta_flux_gap = 5.810103e-08 Tm^2 delta_flux_sample = 2.320380e-05 Tm^2 delta_B = 8.711171e-02 T H_fin = -2.182253e+03 A/m 12:00:34 Measured H and B values: H = -2182.252762 A/m B = -0.309482 T 12:00:35 Hall Probe Field Measurement, B = -0.002770 T 12:00:35 Integrated Voltage Measurement... 12:00:36 Magnet current ramping to 0.0000 A... 12:00:52 Voltage Offset Correction: v_off_ini = -0.000005983 V, v_off_fin = 0.000017050 V 12:00:52 Integrated Voltage Measurement Imag = 0.0000 A VT = 0.013451968 Vs 12:00:53 Hall Probe Field Measurement, B = -0.000410 T 12:00:53 Calculate delta B and H from the cylinder Ifin = 0.000000 A B_hall_ini = -0.002770 T B_hall_fin = -0.000410 T VT = 1.345197e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 7.473316e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.848734e-04 m^2 sample_ID_area = 1.850502e-05 m^2 hole_area = 1.850502e-05 m^2 sample_area = 2.663684e-04 m^2 gap_area = 2.203969e-05 m^2 delta_flux_hole = 4.367184e-08 Tm^2 delta_flux_gap = 5.097339e-08 Tm^2 delta_flux_sample = 7.463851e-05 Tm^2 delta_B = 2.802079e-01 T H_fin = -3.230049e+02 A/m 12:00:53 Measured H and B values: H = -323.004921 A/m B = -0.029275 T 12:00:53 Summary of measured B and H values: i H B (A/m) (T) --- ---------- ---------- 0 -330.88 0.001290 1 275.74 1.964977 2 1780.47 2.660791 3 3805.16 2.796107 4 5932.26 2.867366 5 8012.10 2.918532 6 18387.65 3.087083 7 37634.01 3.246410 8 55178.69 3.297584 9 72227.05 3.326706 10 85084.22 3.346355 11 93096.32 3.358015 12 86289.58 3.348168 13 74472.33 3.330701 14 57416.09 3.302400 15 39784.75 3.256411 16 20743.22 3.117629 17 10438.57 2.973140 18 8366.62 2.933317 19 6239.51 2.885641 20 4120.28 2.826652 21 2008.93 2.733970 22 244.22 2.388564 23 -338.76 0.306463 24 -1953.79 -0.245540 25 -3994.23 -0.368899 26 -6129.22 -0.439277 27 -8216.93 -0.489747 28 -18584.60 -0.655682 29 -37815.21 -0.813821 30 -55375.65 -0.864036 31 -72408.25 -0.892852 32 -85226.03 -0.912268 33 -93175.10 -0.923427 34 -86392.00 -0.913899 35 -74629.89 -0.896094 36 -57605.17 -0.867988 37 -39950.19 -0.822560 38 -20932.29 -0.684146 39 -10635.53 -0.540145 40 -8563.57 -0.500518 41 -6428.59 -0.453885 42 -4301.48 -0.396594 43 -2182.25 -0.309482 44 -323.00 -0.029275 12:00:53 Symmetrized B and H values: i H B (A/m) (T) --- ---------- ---------- 0 -330.88 -1.216004 1 275.74 0.747684 2 1780.47 1.443497 3 3805.16 1.578813 4 5932.26 1.650072 5 8012.10 1.701238 6 18387.65 1.869789 7 37634.01 2.029117 8 55178.69 2.080290 9 72227.05 2.109412 10 85084.22 2.129062 11 93096.32 2.140721 12 86289.58 2.130874 13 74472.33 2.113407 14 57416.09 2.085106 15 39784.75 2.039117 16 20743.22 1.900335 17 10438.57 1.755846 18 8366.62 1.716023 19 6239.51 1.668347 20 4120.28 1.609358 21 2008.93 1.516676 22 244.22 1.171270 23 -338.76 -0.910830 24 -1953.79 -1.462834 25 -3994.23 -1.586192 26 -6129.22 -1.656571 27 -8216.93 -1.707040 28 -18584.60 -1.872976 29 -37815.21 -2.031115 30 -55375.65 -2.081330 31 -72408.25 -2.110146 32 -85226.03 -2.129562 33 -93175.10 -2.140721 34 -86392.00 -2.131192 35 -74629.89 -2.113388 36 -57605.17 -2.085282 37 -39950.19 -2.039854 38 -20932.29 -1.901439 39 -10635.53 -1.757438 40 -8563.57 -1.717812 41 -6428.59 -1.671179 42 -4301.48 -1.613888 43 -2182.25 -1.526776 44 -323.00 -1.246568 12:00:53 Magnet current ramping to 0.0000 A...