SLAC Magnetic Measurements Date: 08-01-2006 Time: 10:25:04 Project: SSRL Magnet Type: Steel Magnet Name: Domenico Laminate Serial Number: Run Number: 15 Measurement Device: Permeameter Operator: adf Comment: Retest with 12 amp currents 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 10:25:44 Hall Probe Zeroed 10:26:07 Hall Probe Type Being Used, type = B9900 10:26:08 Initial Zero Current Measurement, Imag_zero = 0.0000 A 10:26:08 Magnet current ramping to 12.0000 A... 10:26:31 Magnet current ramping to -12.0000 A... 10:27:10 Magnet current ramping to 12.0000 A... 10:27:50 Magnet current ramping to -12.0000 A... 10:28:29 Magnet current ramping to 12.0000 A... 10:29:08 Magnet current ramping to -12.0000 A... 10:29:47 Magnet current ramping to 0.0000 A... 10:30:56 Hall Probe Range Set, range = 4 10:30:56 Hysteresis Loop Measurement Sample Geometry: cylinder 10:30:57 Hall Probe Field Measurement, B = -0.001330 T 10:30:57 Integrated Voltage Measurement... 10:30:58 Magnet current ramping to 0.0000 A... 10:31:12 Voltage Offset Correction: v_off_ini = 0.000071771 V, v_off_fin = 0.000074762 V 10:31:12 Integrated Voltage Measurement Imag = 0.0000 A VT = 0.000084445 Vs 10:31:13 Hall Probe Field Measurement, B = -0.001330 T 10:31:13 Calculate delta B and H from the cylinder Ifin = 0.000000 A B_hall_ini = -0.001330 T B_hall_fin = -0.001330 T VT = 8.444473e-05 V sec N_turns_coil = 180 delta_flux_1_turn = 4.691374e-07 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 0.000000e+00 Tm^2 delta_flux_gap = 0.000000e+00 Tm^2 delta_flux_sample = 4.691374e-07 Tm^2 delta_B = 1.813291e-03 T H_fin = -1.047796e+03 A/m 10:31:13 Measured H and B values: H = -1047.796452 A/m B = 0.001813 T 10:31:13 Hall Probe Field Measurement, B = -0.001330 T 10:31:13 Integrated Voltage Measurement... 10:31:14 Magnet current ramping to 0.2000 A... 10:31:30 Voltage Offset Correction: v_off_ini = 0.000080765 V, v_off_fin = 0.000086748 V 10:31:30 Integrated Voltage Measurement Imag = 0.2000 A VT = 0.002293440 Vs 10:31:31 Hall Probe Field Measurement, B = 0.001230 T 10:31:31 Calculate delta B and H from the cylinder Ifin = 0.200000 A B_hall_ini = -0.001330 T B_hall_fin = 0.001230 T VT = 2.293440e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.274134e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.209133e-08 Tm^2 delta_flux_gap = 6.985354e-08 Tm^2 delta_flux_sample = 1.261939e-05 Tm^2 delta_B = 4.877597e-02 T H_fin = 9.690148e+02 A/m 10:31:31 Measured H and B values: H = 969.014764 A/m B = 0.050589 T 10:31:31 Hall Probe Field Measurement, B = 0.001230 T 10:31:32 Integrated Voltage Measurement... 10:31:32 Magnet current ramping to 0.4000 A... 10:31:48 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000086748 V 10:31:49 Integrated Voltage Measurement Imag = 0.4000 A VT = 0.002249526 Vs 10:31:49 Hall Probe Field Measurement, B = 0.003810 T 10:31:49 Calculate delta B and H from the cylinder Ifin = 0.400000 A B_hall_ini = 0.001230 T B_hall_fin = 0.003810 T VT = 2.249526e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.249737e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.249830e-08 Tm^2 delta_flux_gap = 7.039927e-08 Tm^2 delta_flux_sample = 1.237447e-05 Tm^2 delta_B = 4.782930e-02 T H_fin = 3.001582e+03 A/m 10:31:49 Measured H and B values: H = 3001.582318 A/m B = 0.098419 T 10:31:50 Hall Probe Field Measurement, B = 0.003810 T 10:31:50 Integrated Voltage Measurement... 10:31:51 Magnet current ramping to 0.6000 A... 10:32:07 Voltage Offset Correction: v_off_ini = 0.000086748 V, v_off_fin = 0.000074783 V 10:32:07 Integrated Voltage Measurement Imag = 0.6000 A VT = 0.002163469 Vs 10:32:07 Hall Probe Field Measurement, B = 0.006390 T 10:32:07 Calculate delta B and H from the cylinder Ifin = 0.600000 A B_hall_ini = 0.003810 T B_hall_fin = 0.006390 T VT = 2.163469e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.201927e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.249830e-08 Tm^2 delta_flux_gap = 7.039927e-08 Tm^2 delta_flux_sample = 1.189638e-05 Tm^2 delta_B = 4.598140e-02 T H_fin = 5.034150e+03 A/m 10:32:07 Measured H and B values: H = 5034.149872 A/m B = 0.144400 T 10:32:08 Hall Probe Field Measurement, B = 0.006390 T 10:32:08 Integrated Voltage Measurement... 10:32:09 Magnet current ramping to 0.8000 A... 10:32:25 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000074783 V 10:32:25 Integrated Voltage Measurement Imag = 0.8000 A VT = 0.002200045 Vs 10:32:25 Hall Probe Field Measurement, B = 0.008970 T 10:32:25 Calculate delta B and H from the cylinder Ifin = 0.800000 A B_hall_ini = 0.006390 T B_hall_fin = 0.008970 T VT = 2.200045e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.222247e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.249830e-08 Tm^2 delta_flux_gap = 7.039927e-08 Tm^2 delta_flux_sample = 1.209958e-05 Tm^2 delta_B = 4.676680e-02 T H_fin = 7.066717e+03 A/m 10:32:25 Measured H and B values: H = 7066.717426 A/m B = 0.191167 T 10:32:26 Hall Probe Field Measurement, B = 0.008970 T 10:32:26 Integrated Voltage Measurement... 10:32:27 Magnet current ramping to 1.0000 A... 10:32:43 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000086748 V 10:32:43 Integrated Voltage Measurement Imag = 1.0000 A VT = 0.002101926 Vs 10:32:43 Hall Probe Field Measurement, B = 0.011530 T 10:32:43 Calculate delta B and H from the cylinder Ifin = 1.000000 A B_hall_ini = 0.008970 T B_hall_fin = 0.011530 T VT = 2.101926e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.167737e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.209133e-08 Tm^2 delta_flux_gap = 6.985354e-08 Tm^2 delta_flux_sample = 1.155542e-05 Tm^2 delta_B = 4.466355e-02 T H_fin = 9.083529e+03 A/m 10:32:43 Measured H and B values: H = 9083.528643 A/m B = 0.235830 T 10:32:44 Hall Probe Field Measurement, B = 0.011530 T 10:32:44 Integrated Voltage Measurement... 10:32:45 Magnet current ramping to 2.0000 A... 10:33:06 Voltage Offset Correction: v_off_ini = 0.000083819 V, v_off_fin = 0.000086813 V 10:33:06 Integrated Voltage Measurement Imag = 2.0000 A VT = 0.010108646 Vs 10:33:06 Hall Probe Field Measurement, B = 0.024300 T 10:33:06 Calculate delta B and H from the cylinder Ifin = 2.000000 A B_hall_ini = 0.011530 T B_hall_fin = 0.024300 T VT = 1.010865e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 5.615915e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 2.598462e-07 Tm^2 delta_flux_gap = 3.484491e-07 Tm^2 delta_flux_sample = 5.555085e-05 Tm^2 delta_B = 2.147129e-01 T H_fin = 1.914395e+04 A/m 10:33:07 Measured H and B values: H = 19143.950219 A/m B = 0.450543 T 10:33:07 Hall Probe Field Measurement, B = 0.024300 T 10:33:07 Integrated Voltage Measurement... 10:33:08 Magnet current ramping to 4.0000 A... 10:33:35 Voltage Offset Correction: v_off_ini = 0.000083863 V, v_off_fin = 0.000074878 V 10:33:35 Integrated Voltage Measurement Imag = 4.0000 A VT = 0.018960758 Vs 10:33:36 Hall Probe Field Measurement, B = 0.049360 T 10:33:36 Calculate delta B and H from the cylinder Ifin = 4.000000 A B_hall_ini = 0.024300 T B_hall_fin = 0.049360 T VT = 1.896076e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 1.053375e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.099253e-07 Tm^2 delta_flux_gap = 6.838007e-07 Tm^2 delta_flux_sample = 1.041438e-04 Tm^2 delta_B = 4.025325e-01 T H_fin = 3.888664e+04 A/m 10:33:36 Measured H and B values: H = 38886.641268 A/m B = 0.853076 T 10:33:36 Hall Probe Field Measurement, B = 0.049360 T 10:33:36 Integrated Voltage Measurement... 10:33:37 Magnet current ramping to 6.0000 A... 10:34:04 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000086859 V 10:34:04 Integrated Voltage Measurement Imag = 6.0000 A VT = 0.016809037 Vs 10:34:05 Hall Probe Field Measurement, B = 0.074210 T 10:34:05 Calculate delta B and H from the cylinder Ifin = 6.000000 A B_hall_ini = 0.049360 T B_hall_fin = 0.074210 T VT = 1.680904e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 9.338354e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.056522e-07 Tm^2 delta_flux_gap = 6.780705e-07 Tm^2 delta_flux_sample = 9.219981e-05 Tm^2 delta_B = 3.563670e-01 T H_fin = 5.846389e+04 A/m 10:34:05 Measured H and B values: H = 58463.890771 A/m B = 1.209443 T 10:34:05 Hall Probe Field Measurement, B = 0.074210 T 10:34:05 Integrated Voltage Measurement... 10:34:06 Magnet current ramping to 8.0000 A... 10:34:33 Voltage Offset Correction: v_off_ini = 0.000083863 V, v_off_fin = 0.000089854 V 10:34:33 Integrated Voltage Measurement Imag = 8.0000 A VT = 0.012764395 Vs 10:34:34 Hall Probe Field Measurement, B = 0.098270 T 10:34:34 Calculate delta B and H from the cylinder Ifin = 8.000000 A B_hall_ini = 0.074210 T B_hall_fin = 0.098270 T VT = 1.276439e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 7.091330e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 4.895771e-07 Tm^2 delta_flux_gap = 6.565141e-07 Tm^2 delta_flux_sample = 6.976721e-05 Tm^2 delta_B = 2.696614e-01 T H_fin = 7.741876e+04 A/m 10:34:34 Measured H and B values: H = 77418.764939 A/m B = 1.479104 T 10:34:34 Hall Probe Field Measurement, B = 0.098270 T 10:34:34 Integrated Voltage Measurement... 10:34:35 Magnet current ramping to 10.0000 A... 10:35:02 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000074878 V 10:35:02 Integrated Voltage Measurement Imag = 10.0000 A VT = 0.007694347 Vs 10:35:03 Hall Probe Field Measurement, B = 0.116890 T 10:35:03 Calculate delta B and H from the cylinder Ifin = 10.000000 A B_hall_ini = 0.098270 T B_hall_fin = 0.116890 T VT = 7.694347e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 4.274637e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 3.788830e-07 Tm^2 delta_flux_gap = 5.080754e-07 Tm^2 delta_flux_sample = 4.185942e-05 Tm^2 delta_B = 1.617933e-01 T H_fin = 9.208792e+04 A/m 10:35:03 Measured H and B values: H = 92087.915271 A/m B = 1.640898 T 10:35:03 Hall Probe Field Measurement, B = 0.116890 T 10:35:03 Integrated Voltage Measurement... 10:35:04 Magnet current ramping to 12.0000 A... 10:35:31 Voltage Offset Correction: v_off_ini = 0.000083863 V, v_off_fin = 0.000074878 V 10:35:31 Integrated Voltage Measurement Imag = 12.0000 A VT = 0.003825158 Vs 10:35:32 Hall Probe Field Measurement, B = 0.128290 T 10:35:32 Calculate delta B and H from the cylinder Ifin = 12.000000 A B_hall_ini = 0.116890 T B_hall_fin = 0.128290 T VT = 3.825158e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 2.125088e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 2.319692e-07 Tm^2 delta_flux_gap = 3.110666e-07 Tm^2 delta_flux_sample = 2.070784e-05 Tm^2 delta_B = 8.003913e-02 T H_fin = 1.010690e+05 A/m 10:35:32 Measured H and B values: H = 101069.027719 A/m B = 1.720937 T 10:35:32 Hall Probe Field Measurement, B = 0.128290 T 10:35:32 Integrated Voltage Measurement... 10:35:33 Magnet current ramping to 10.0000 A... 10:36:00 Voltage Offset Correction: v_off_ini = 0.000083863 V, v_off_fin = 0.000074878 V 10:36:00 Integrated Voltage Measurement Imag = 10.0000 A VT = -0.003297842 Vs 10:36:01 Hall Probe Field Measurement, B = 0.118710 T 10:36:01 Calculate delta B and H from the cylinder Ifin = 10.000000 A B_hall_ini = 0.128290 T B_hall_fin = 0.118710 T VT = -3.297842e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.832134e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -1.949355e-07 Tm^2 delta_flux_gap = -2.614051e-07 Tm^2 delta_flux_sample = -1.786500e-05 Tm^2 delta_B = -6.905110e-02 T H_fin = 9.352174e+04 A/m 10:36:01 Measured H and B values: H = 93521.741995 A/m B = 1.651886 T 10:36:01 Hall Probe Field Measurement, B = 0.118710 T 10:36:01 Integrated Voltage Measurement... 10:36:02 Magnet current ramping to 8.0000 A... 10:36:29 Voltage Offset Correction: v_off_ini = 0.000083863 V, v_off_fin = 0.000074878 V 10:36:29 Integrated Voltage Measurement Imag = 8.0000 A VT = -0.006881142 Vs 10:36:30 Hall Probe Field Measurement, B = 0.101520 T 10:36:30 Calculate delta B and H from the cylinder Ifin = 8.000000 A B_hall_ini = 0.118710 T B_hall_fin = 0.101520 T VT = -6.881142e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -3.822857e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -3.497852e-07 Tm^2 delta_flux_gap = -4.690556e-07 Tm^2 delta_flux_sample = -3.740973e-05 Tm^2 delta_B = -1.445946e-01 T H_fin = 7.997917e+04 A/m 10:36:30 Measured H and B values: H = 79979.169803 A/m B = 1.507291 T 10:36:30 Hall Probe Field Measurement, B = 0.101520 T 10:36:30 Integrated Voltage Measurement... 10:36:31 Magnet current ramping to 6.0000 A... 10:36:58 Voltage Offset Correction: v_off_ini = 0.000074878 V, v_off_fin = 0.000062898 V 10:36:58 Integrated Voltage Measurement Imag = 6.0000 A VT = -0.012225439 Vs 10:36:59 Hall Probe Field Measurement, B = 0.077450 T 10:36:59 Calculate delta B and H from the cylinder Ifin = 6.000000 A B_hall_ini = 0.101520 T B_hall_fin = 0.077450 T VT = -1.222544e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -6.791911e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -4.897806e-07 Tm^2 delta_flux_gap = -6.567870e-07 Tm^2 delta_flux_sample = -6.677254e-05 Tm^2 delta_B = -2.580866e-01 T H_fin = 6.101642e+04 A/m 10:36:59 Measured H and B values: H = 61016.417467 A/m B = 1.249205 T 10:37:00 Hall Probe Field Measurement, B = 0.077450 T 10:37:00 Integrated Voltage Measurement... 10:37:00 Magnet current ramping to 4.0000 A... 10:37:27 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000077873 V 10:37:27 Integrated Voltage Measurement Imag = 4.0000 A VT = -0.016531805 Vs 10:37:28 Hall Probe Field Measurement, B = 0.052430 T 10:37:28 Calculate delta B and H from the cylinder Ifin = 4.000000 A B_hall_ini = 0.077450 T B_hall_fin = 0.052430 T VT = -1.653181e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -9.184336e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.091114e-07 Tm^2 delta_flux_gap = -6.827092e-07 Tm^2 delta_flux_sample = -9.065154e-05 Tm^2 delta_B = -3.503827e-01 T H_fin = 4.130524e+04 A/m 10:37:28 Measured H and B values: H = 41305.239094 A/m B = 0.898822 T 10:37:29 Hall Probe Field Measurement, B = 0.052430 T 10:37:29 Integrated Voltage Measurement... 10:37:29 Magnet current ramping to 2.0000 A... 10:37:56 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000074878 V 10:37:57 Integrated Voltage Measurement Imag = 2.0000 A VT = -0.019107753 Vs 10:37:57 Hall Probe Field Measurement, B = 0.027100 T 10:37:57 Calculate delta B and H from the cylinder Ifin = 2.000000 A B_hall_ini = 0.052430 T B_hall_fin = 0.027100 T VT = -1.910775e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -1.061542e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.154193e-07 Tm^2 delta_flux_gap = -6.911680e-07 Tm^2 delta_flux_sample = -1.049476e-04 Tm^2 delta_B = -4.056393e-01 T H_fin = 2.134984e+04 A/m 10:37:57 Measured H and B values: H = 21349.837487 A/m B = 0.493183 T 10:37:58 Hall Probe Field Measurement, B = 0.027100 T 10:37:58 Integrated Voltage Measurement... 10:37:59 Magnet current ramping to 1.0000 A... 10:38:20 Voltage Offset Correction: v_off_ini = 0.000071845 V, v_off_fin = 0.000074839 V 10:38:20 Integrated Voltage Measurement Imag = 1.0000 A VT = -0.010081154 Vs 10:38:20 Hall Probe Field Measurement, B = 0.014310 T 10:38:20 Calculate delta B and H from the cylinder Ifin = 1.000000 A B_hall_ini = 0.027100 T B_hall_fin = 0.014310 T VT = -1.008115e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -5.600641e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -2.602532e-07 Tm^2 delta_flux_gap = -3.489948e-07 Tm^2 delta_flux_sample = -5.539716e-05 Tm^2 delta_B = -2.141189e-01 T H_fin = 1.127366e+04 A/m 10:38:20 Measured H and B values: H = 11273.659573 A/m B = 0.279064 T 10:38:21 Hall Probe Field Measurement, B = 0.014310 T 10:38:21 Integrated Voltage Measurement... 10:38:22 Magnet current ramping to 0.8000 A... 10:38:38 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000074783 V 10:38:38 Integrated Voltage Measurement Imag = 0.8000 A VT = -0.002069655 Vs 10:38:38 Hall Probe Field Measurement, B = 0.011750 T 10:38:38 Calculate delta B and H from the cylinder Ifin = 0.800000 A B_hall_ini = 0.014310 T B_hall_fin = 0.011750 T VT = -2.069655e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.149808e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.209133e-08 Tm^2 delta_flux_gap = -6.985354e-08 Tm^2 delta_flux_sample = -1.137614e-05 Tm^2 delta_B = -4.397059e-02 T H_fin = 9.256848e+03 A/m 10:38:38 Measured H and B values: H = 9256.848357 A/m B = 0.235093 T 10:38:39 Hall Probe Field Measurement, B = 0.011750 T 10:38:39 Integrated Voltage Measurement... 10:38:40 Magnet current ramping to 0.6000 A... 10:38:56 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000074783 V 10:38:56 Integrated Voltage Measurement Imag = 0.6000 A VT = -0.002109755 Vs 10:38:56 Hall Probe Field Measurement, B = 0.009180 T 10:38:56 Calculate delta B and H from the cylinder Ifin = 0.600000 A B_hall_ini = 0.011750 T B_hall_fin = 0.009180 T VT = -2.109755e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.172086e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.229481e-08 Tm^2 delta_flux_gap = -7.012641e-08 Tm^2 delta_flux_sample = -1.159844e-05 Tm^2 delta_B = -4.482982e-02 T H_fin = 7.232159e+03 A/m 10:38:56 Measured H and B values: H = 7232.158972 A/m B = 0.190263 T 10:38:57 Hall Probe Field Measurement, B = 0.009180 T 10:38:57 Integrated Voltage Measurement... 10:38:58 Magnet current ramping to 0.4000 A... 10:39:14 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000074783 V 10:39:14 Integrated Voltage Measurement Imag = 0.4000 A VT = -0.002142855 Vs 10:39:14 Hall Probe Field Measurement, B = 0.006610 T 10:39:14 Calculate delta B and H from the cylinder Ifin = 0.400000 A B_hall_ini = 0.009180 T B_hall_fin = 0.006610 T VT = -2.142855e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.190475e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.229481e-08 Tm^2 delta_flux_gap = -7.012641e-08 Tm^2 delta_flux_sample = -1.178233e-05 Tm^2 delta_B = -4.554058e-02 T H_fin = 5.207470e+03 A/m 10:39:14 Measured H and B values: H = 5207.469586 A/m B = 0.144723 T 10:39:15 Hall Probe Field Measurement, B = 0.006610 T 10:39:15 Integrated Voltage Measurement... 10:39:16 Magnet current ramping to 0.2000 A... 10:39:32 Voltage Offset Correction: v_off_ini = 0.000059826 V, v_off_fin = 0.000074783 V 10:39:32 Integrated Voltage Measurement Imag = 0.2000 A VT = -0.002102674 Vs 10:39:32 Hall Probe Field Measurement, B = 0.004040 T 10:39:32 Calculate delta B and H from the cylinder Ifin = 0.200000 A B_hall_ini = 0.006610 T B_hall_fin = 0.004040 T VT = -2.102674e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.168152e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.229481e-08 Tm^2 delta_flux_gap = -7.012641e-08 Tm^2 delta_flux_sample = -1.155910e-05 Tm^2 delta_B = -4.467778e-02 T H_fin = 3.182780e+03 A/m 10:39:32 Measured H and B values: H = 3182.780201 A/m B = 0.100045 T 10:39:33 Hall Probe Field Measurement, B = 0.004040 T 10:39:33 Integrated Voltage Measurement... 10:39:34 Magnet current ramping to 0.0000 A... 10:39:50 Voltage Offset Correction: v_off_ini = 0.000059826 V, v_off_fin = 0.000074783 V 10:39:50 Integrated Voltage Measurement Imag = 0.0000 A VT = -0.002163074 Vs 10:39:51 Hall Probe Field Measurement, B = 0.001460 T 10:39:51 Calculate delta B and H from the cylinder Ifin = 0.000000 A B_hall_ini = 0.004040 T B_hall_fin = 0.001460 T VT = -2.163074e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.201708e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.249830e-08 Tm^2 delta_flux_gap = -7.039927e-08 Tm^2 delta_flux_sample = -1.189418e-05 Tm^2 delta_B = -4.597291e-02 T H_fin = 1.150213e+03 A/m 10:39:51 Measured H and B values: H = 1150.212647 A/m B = 0.054072 T 10:39:51 Hall Probe Field Measurement, B = 0.001460 T 10:39:51 Integrated Voltage Measurement... 10:39:52 Magnet current ramping to -0.2000 A... 10:40:08 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000074783 V 10:40:08 Integrated Voltage Measurement Imag = -0.2000 A VT = -0.002357955 Vs 10:40:09 Hall Probe Field Measurement, B = -0.001100 T 10:40:09 Calculate delta B and H from the cylinder Ifin = -0.200000 A B_hall_ini = 0.001460 T B_hall_fin = -0.001100 T VT = -2.357955e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.309975e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.209133e-08 Tm^2 delta_flux_gap = -6.985354e-08 Tm^2 delta_flux_sample = -1.297780e-05 Tm^2 delta_B = -5.016129e-02 T H_fin = -8.665986e+02 A/m 10:40:09 Measured H and B values: H = -866.598570 A/m B = 0.003911 T 10:40:09 Hall Probe Field Measurement, B = -0.001100 T 10:40:09 Integrated Voltage Measurement... 10:40:10 Magnet current ramping to -0.4000 A... 10:40:26 Voltage Offset Correction: v_off_ini = 0.000062817 V, v_off_fin = 0.000074783 V 10:40:26 Integrated Voltage Measurement Imag = -0.4000 A VT = -0.002221169 Vs 10:40:27 Hall Probe Field Measurement, B = -0.003690 T 10:40:27 Calculate delta B and H from the cylinder Ifin = -0.400000 A B_hall_ini = -0.001100 T B_hall_fin = -0.003690 T VT = -2.221169e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.233983e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.270178e-08 Tm^2 delta_flux_gap = -7.067214e-08 Tm^2 delta_flux_sample = -1.221646e-05 Tm^2 delta_B = -4.721856e-02 T H_fin = -2.907044e+03 A/m 10:40:27 Measured H and B values: H = -2907.044292 A/m B = -0.043308 T 10:40:27 Hall Probe Field Measurement, B = -0.003680 T 10:40:27 Integrated Voltage Measurement... 10:40:28 Magnet current ramping to -0.6000 A... 10:40:44 Voltage Offset Correction: v_off_ini = 0.000059826 V, v_off_fin = 0.000074783 V 10:40:44 Integrated Voltage Measurement Imag = -0.6000 A VT = -0.002138874 Vs 10:40:45 Hall Probe Field Measurement, B = -0.006260 T 10:40:45 Calculate delta B and H from the cylinder Ifin = -0.600000 A B_hall_ini = -0.003680 T B_hall_fin = -0.006260 T VT = -2.138874e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.188263e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.249830e-08 Tm^2 delta_flux_gap = -7.039927e-08 Tm^2 delta_flux_sample = -1.175974e-05 Tm^2 delta_B = -4.545326e-02 T H_fin = -4.931734e+03 A/m 10:40:45 Measured H and B values: H = -4931.733678 A/m B = -0.088761 T 10:40:45 Hall Probe Field Measurement, B = -0.006260 T 10:40:45 Integrated Voltage Measurement... 10:40:46 Magnet current ramping to -0.8000 A... 10:41:02 Voltage Offset Correction: v_off_ini = 0.000059826 V, v_off_fin = 0.000074783 V 10:41:02 Integrated Voltage Measurement Imag = -0.8000 A VT = -0.002115274 Vs 10:41:03 Hall Probe Field Measurement, B = -0.008830 T 10:41:03 Calculate delta B and H from the cylinder Ifin = -0.800000 A B_hall_ini = -0.006260 T B_hall_fin = -0.008830 T VT = -2.115274e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.175152e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.229481e-08 Tm^2 delta_flux_gap = -7.012641e-08 Tm^2 delta_flux_sample = -1.162910e-05 Tm^2 delta_B = -4.494834e-02 T H_fin = -6.956423e+03 A/m 10:41:03 Measured H and B values: H = -6956.423063 A/m B = -0.133710 T 10:41:04 Hall Probe Field Measurement, B = -0.008830 T 10:41:04 Integrated Voltage Measurement... 10:41:04 Magnet current ramping to -1.0000 A... 10:41:20 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000062817 V 10:41:20 Integrated Voltage Measurement Imag = -1.0000 A VT = -0.002084736 Vs 10:41:21 Hall Probe Field Measurement, B = -0.011380 T 10:41:21 Calculate delta B and H from the cylinder Ifin = -1.000000 A B_hall_ini = -0.008830 T B_hall_fin = -0.011380 T VT = -2.084736e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.158186e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.188785e-08 Tm^2 delta_flux_gap = -6.958068e-08 Tm^2 delta_flux_sample = -1.146040e-05 Tm^2 delta_B = -4.429626e-02 T H_fin = -8.965356e+03 A/m 10:41:21 Measured H and B values: H = -8965.356111 A/m B = -0.178006 T 10:41:22 Hall Probe Field Measurement, B = -0.011380 T 10:41:22 Integrated Voltage Measurement... 10:41:22 Magnet current ramping to -2.0000 A... 10:41:44 Voltage Offset Correction: v_off_ini = 0.000071845 V, v_off_fin = 0.000062865 V 10:41:44 Integrated Voltage Measurement Imag = -2.0000 A VT = -0.010186039 Vs 10:41:44 Hall Probe Field Measurement, B = -0.024130 T 10:41:44 Calculate delta B and H from the cylinder Ifin = -2.000000 A B_hall_ini = -0.011380 T B_hall_fin = -0.024130 T VT = -1.018604e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -5.658911e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -2.594392e-07 Tm^2 delta_flux_gap = -3.479034e-07 Tm^2 delta_flux_sample = -5.598176e-05 Tm^2 delta_B = -2.163785e-01 T H_fin = -1.901002e+04 A/m 10:41:44 Measured H and B values: H = -19010.021349 A/m B = -0.394384 T 10:41:45 Hall Probe Field Measurement, B = -0.024130 T 10:41:45 Integrated Voltage Measurement... 10:41:46 Magnet current ramping to -4.0000 A... 10:42:13 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000074878 V 10:42:13 Integrated Voltage Measurement Imag = -4.0000 A VT = -0.019085653 Vs 10:42:13 Hall Probe Field Measurement, B = -0.049160 T 10:42:14 Calculate delta B and H from the cylinder Ifin = -4.000000 A B_hall_ini = -0.024130 T B_hall_fin = -0.049160 T VT = -1.908565e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -1.060314e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.093149e-07 Tm^2 delta_flux_gap = -6.829821e-07 Tm^2 delta_flux_sample = -1.048391e-04 Tm^2 delta_B = -4.052199e-01 T H_fin = -3.872908e+04 A/m 10:42:14 Measured H and B values: H = -38729.077891 A/m B = -0.799604 T 10:42:14 Hall Probe Field Measurement, B = -0.049170 T 10:42:14 Integrated Voltage Measurement... 10:42:15 Magnet current ramping to -6.0000 A... 10:42:42 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000065893 V 10:42:42 Integrated Voltage Measurement Imag = -6.0000 A VT = -0.016854595 Vs 10:42:43 Hall Probe Field Measurement, B = -0.073980 T 10:42:43 Calculate delta B and H from the cylinder Ifin = -6.000000 A B_hall_ini = -0.049170 T B_hall_fin = -0.073980 T VT = -1.685459e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -9.363664e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -5.048383e-07 Tm^2 delta_flux_gap = -6.769790e-07 Tm^2 delta_flux_sample = -9.245482e-05 Tm^2 delta_B = -3.573527e-01 T H_fin = -5.828269e+04 A/m 10:42:43 Measured H and B values: H = -58282.692889 A/m B = -1.156957 T 10:42:43 Hall Probe Field Measurement, B = -0.073980 T 10:42:43 Integrated Voltage Measurement... 10:42:44 Magnet current ramping to -8.0000 A... 10:43:11 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000062898 V 10:43:11 Integrated Voltage Measurement Imag = -8.0000 A VT = -0.012994342 Vs 10:43:12 Hall Probe Field Measurement, B = -0.098010 T 10:43:12 Calculate delta B and H from the cylinder Ifin = -8.000000 A B_hall_ini = -0.073980 T B_hall_fin = -0.098010 T VT = -1.299434e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -7.219079e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -4.889667e-07 Tm^2 delta_flux_gap = -6.556955e-07 Tm^2 delta_flux_sample = -7.104613e-05 Tm^2 delta_B = -2.746047e-01 T H_fin = -7.721393e+04 A/m 10:43:12 Measured H and B values: H = -77213.932550 A/m B = -1.431562 T 10:43:12 Hall Probe Field Measurement, B = -0.098010 T 10:43:12 Integrated Voltage Measurement... 10:43:13 Magnet current ramping to -10.0000 A... 10:43:40 Voltage Offset Correction: v_off_ini = 0.000059902 V, v_off_fin = 0.000074878 V 10:43:40 Integrated Voltage Measurement Imag = -10.0000 A VT = -0.007762963 Vs 10:43:41 Hall Probe Field Measurement, B = -0.116740 T 10:43:41 Calculate delta B and H from the cylinder Ifin = -10.000000 A B_hall_ini = -0.098010 T B_hall_fin = -0.116740 T VT = -7.762963e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -4.312757e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -3.811213e-07 Tm^2 delta_flux_gap = -5.110769e-07 Tm^2 delta_flux_sample = -4.223538e-05 Tm^2 delta_B = -1.632465e-01 T H_fin = -9.196974e+04 A/m 10:43:41 Measured H and B values: H = -91969.742739 A/m B = -1.594808 T 10:43:41 Hall Probe Field Measurement, B = -0.116740 T 10:43:41 Integrated Voltage Measurement... 10:43:42 Magnet current ramping to -12.0000 A... 10:44:09 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000062898 V 10:44:09 Integrated Voltage Measurement Imag = -12.0000 A VT = -0.003964842 Vs 10:44:10 Hall Probe Field Measurement, B = -0.128240 T 10:44:10 Calculate delta B and H from the cylinder Ifin = -12.000000 A B_hall_ini = -0.116740 T B_hall_fin = -0.128240 T VT = -3.964842e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -2.202690e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = -2.340040e-07 Tm^2 delta_flux_gap = -3.137952e-07 Tm^2 delta_flux_sample = -2.147910e-05 Tm^2 delta_B = -8.302016e-02 T H_fin = -1.010296e+05 A/m 10:44:10 Measured H and B values: H = -101029.636875 A/m B = -1.677828 T 10:44:10 Hall Probe Field Measurement, B = -0.128240 T 10:44:10 Integrated Voltage Measurement... 10:44:11 Magnet current ramping to -10.0000 A... 10:44:38 Voltage Offset Correction: v_off_ini = 0.000059902 V, v_off_fin = 0.000074878 V 10:44:38 Integrated Voltage Measurement Imag = -10.0000 A VT = 0.003213037 Vs 10:44:38 Hall Probe Field Measurement, B = -0.118570 T 10:44:39 Calculate delta B and H from the cylinder Ifin = -10.000000 A B_hall_ini = -0.128240 T B_hall_fin = -0.118570 T VT = 3.213037e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.785020e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 1.967669e-07 Tm^2 delta_flux_gap = 2.638608e-07 Tm^2 delta_flux_sample = 1.738958e-05 Tm^2 delta_B = 6.721349e-02 T H_fin = -9.341145e+04 A/m 10:44:39 Measured H and B values: H = -93411.447632 A/m B = -1.610615 T 10:44:39 Hall Probe Field Measurement, B = -0.118570 T 10:44:39 Integrated Voltage Measurement... 10:44:40 Magnet current ramping to -8.0000 A... 10:45:07 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000062898 V 10:45:07 Integrated Voltage Measurement Imag = -8.0000 A VT = 0.006857358 Vs 10:45:08 Hall Probe Field Measurement, B = -0.101180 T 10:45:08 Calculate delta B and H from the cylinder Ifin = -8.000000 A B_hall_ini = -0.118570 T B_hall_fin = -0.101180 T VT = 6.857358e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 3.809643e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 3.538548e-07 Tm^2 delta_flux_gap = 4.745129e-07 Tm^2 delta_flux_sample = 3.726807e-05 Tm^2 delta_B = 1.440470e-01 T H_fin = -7.971131e+04 A/m 10:45:08 Measured H and B values: H = -79711.312064 A/m B = -1.466568 T 10:45:08 Hall Probe Field Measurement, B = -0.101180 T 10:45:08 Integrated Voltage Measurement... 10:45:09 Magnet current ramping to -6.0000 A... 10:45:36 Voltage Offset Correction: v_off_ini = 0.000059902 V, v_off_fin = 0.000053912 V 10:45:36 Integrated Voltage Measurement Imag = -6.0000 A VT = 0.012540205 Vs 10:45:37 Hall Probe Field Measurement, B = -0.077130 T 10:45:37 Calculate delta B and H from the cylinder Ifin = -6.000000 A B_hall_ini = -0.101180 T B_hall_fin = -0.077130 T VT = 1.254021e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 6.966781e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 4.893736e-07 Tm^2 delta_flux_gap = 6.562413e-07 Tm^2 delta_flux_sample = 6.852219e-05 Tm^2 delta_B = 2.648492e-01 T H_fin = -6.076432e+04 A/m 10:45:37 Measured H and B values: H = -60764.316065 A/m B = -1.201718 T 10:45:37 Hall Probe Field Measurement, B = -0.077130 T 10:45:37 Integrated Voltage Measurement... 10:45:38 Magnet current ramping to -4.0000 A... 10:46:05 Voltage Offset Correction: v_off_ini = 0.000059902 V, v_off_fin = 0.000074878 V 10:46:05 Integrated Voltage Measurement Imag = -4.0000 A VT = 0.016428237 Vs 10:46:06 Hall Probe Field Measurement, B = -0.052190 T 10:46:06 Calculate delta B and H from the cylinder Ifin = -4.000000 A B_hall_ini = -0.077130 T B_hall_fin = -0.052190 T VT = 1.642824e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 9.126798e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.074835e-07 Tm^2 delta_flux_gap = 6.805263e-07 Tm^2 delta_flux_sample = 9.007997e-05 Tm^2 delta_B = 3.481735e-01 T H_fin = -4.111616e+04 A/m 10:46:06 Measured H and B values: H = -41116.163042 A/m B = -0.853545 T 10:46:06 Hall Probe Field Measurement, B = -0.052180 T 10:46:06 Integrated Voltage Measurement... 10:46:07 Magnet current ramping to -2.0000 A... 10:46:34 Voltage Offset Correction: v_off_ini = 0.000071883 V, v_off_fin = 0.000077873 V 10:46:34 Integrated Voltage Measurement Imag = -2.0000 A VT = 0.018856195 Vs 10:46:35 Hall Probe Field Measurement, B = -0.026930 T 10:46:35 Calculate delta B and H from the cylinder Ifin = -2.000000 A B_hall_ini = -0.052180 T B_hall_fin = -0.026930 T VT = 1.885619e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 1.047566e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.137915e-07 Tm^2 delta_flux_gap = 6.889851e-07 Tm^2 delta_flux_sample = 1.035539e-04 Tm^2 delta_B = 4.002523e-01 T H_fin = -2.121591e+04 A/m 10:46:35 Measured H and B values: H = -21215.908617 A/m B = -0.453293 T 10:46:35 Hall Probe Field Measurement, B = -0.026930 T 10:46:35 Integrated Voltage Measurement... 10:46:36 Magnet current ramping to -1.0000 A... 10:46:57 Voltage Offset Correction: v_off_ini = 0.000071845 V, v_off_fin = 0.000062865 V 10:46:57 Integrated Voltage Measurement Imag = -1.0000 A VT = 0.010029961 Vs 10:46:58 Hall Probe Field Measurement, B = -0.014160 T 10:46:58 Calculate delta B and H from the cylinder Ifin = -1.000000 A B_hall_ini = -0.026930 T B_hall_fin = -0.014160 T VT = 1.002996e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 5.572200e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 2.598462e-07 Tm^2 delta_flux_gap = 3.484491e-07 Tm^2 delta_flux_sample = 5.511371e-05 Tm^2 delta_B = 2.130233e-01 T H_fin = -1.115549e+04 A/m 10:46:58 Measured H and B values: H = -11155.487041 A/m B = -0.240269 T 10:46:59 Hall Probe Field Measurement, B = -0.014160 T 10:46:59 Integrated Voltage Measurement... 10:46:59 Magnet current ramping to -0.8000 A... 10:47:15 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000074783 V 10:47:15 Integrated Voltage Measurement Imag = -0.8000 A VT = 0.001955945 Vs 10:47:16 Hall Probe Field Measurement, B = -0.011610 T 10:47:16 Calculate delta B and H from the cylinder Ifin = -0.800000 A B_hall_ini = -0.014160 T B_hall_fin = -0.011610 T VT = 1.955945e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.086636e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.188785e-08 Tm^2 delta_flux_gap = 6.958068e-08 Tm^2 delta_flux_sample = 1.074489e-05 Tm^2 delta_B = 4.153073e-02 T H_fin = -9.146554e+03 A/m 10:47:16 Measured H and B values: H = -9146.553993 A/m B = -0.198739 T 10:47:16 Hall Probe Field Measurement, B = -0.011610 T 10:47:16 Integrated Voltage Measurement... 10:47:17 Magnet current ramping to -0.6000 A... 10:47:33 Voltage Offset Correction: v_off_ini = 0.000062817 V, v_off_fin = 0.000065809 V 10:47:33 Integrated Voltage Measurement Imag = -0.6000 A VT = 0.002088395 Vs 10:47:34 Hall Probe Field Measurement, B = -0.009050 T 10:47:34 Calculate delta B and H from the cylinder Ifin = -0.600000 A B_hall_ini = -0.011610 T B_hall_fin = -0.009050 T VT = 2.088395e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.160220e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.209133e-08 Tm^2 delta_flux_gap = 6.985354e-08 Tm^2 delta_flux_sample = 1.148025e-05 Tm^2 delta_B = 4.437301e-02 T H_fin = -7.129743e+03 A/m 10:47:34 Measured H and B values: H = -7129.742777 A/m B = -0.154366 T 10:47:35 Hall Probe Field Measurement, B = -0.009050 T 10:47:35 Integrated Voltage Measurement... 10:47:35 Magnet current ramping to -0.4000 A... 10:47:51 Voltage Offset Correction: v_off_ini = 0.000059826 V, v_off_fin = 0.000074783 V 10:47:51 Integrated Voltage Measurement Imag = -0.4000 A VT = 0.002074126 Vs 10:47:52 Hall Probe Field Measurement, B = -0.006470 T 10:47:52 Calculate delta B and H from the cylinder Ifin = -0.400000 A B_hall_ini = -0.009050 T B_hall_fin = -0.006470 T VT = 2.074126e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.152292e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.249830e-08 Tm^2 delta_flux_gap = 7.039927e-08 Tm^2 delta_flux_sample = 1.140002e-05 Tm^2 delta_B = 4.406292e-02 T H_fin = -5.097175e+03 A/m 10:47:52 Measured H and B values: H = -5097.175223 A/m B = -0.110303 T 10:47:53 Hall Probe Field Measurement, B = -0.006490 T 10:47:53 Integrated Voltage Measurement... 10:47:53 Magnet current ramping to -0.2000 A... 10:48:10 Voltage Offset Correction: v_off_ini = 0.000071791 V, v_off_fin = 0.000062817 V 10:48:10 Integrated Voltage Measurement Imag = -0.2000 A VT = 0.002108164 Vs 10:48:10 Hall Probe Field Measurement, B = -0.003910 T 10:48:10 Calculate delta B and H from the cylinder Ifin = -0.200000 A B_hall_ini = -0.006490 T B_hall_fin = -0.003910 T VT = 2.108164e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.171202e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.249830e-08 Tm^2 delta_flux_gap = 7.039927e-08 Tm^2 delta_flux_sample = 1.158913e-05 Tm^2 delta_B = 4.479383e-02 T H_fin = -3.080364e+03 A/m 10:48:10 Measured H and B values: H = -3080.364006 A/m B = -0.065509 T 10:48:11 Hall Probe Field Measurement, B = -0.003910 T 10:48:11 Integrated Voltage Measurement... 10:48:12 Magnet current ramping to 0.0000 A... 10:48:28 Voltage Offset Correction: v_off_ini = 0.000059826 V, v_off_fin = 0.000062817 V 10:48:28 Integrated Voltage Measurement Imag = 0.0000 A VT = 0.002228945 Vs 10:48:28 Hall Probe Field Measurement, B = -0.001330 T 10:48:28 Calculate delta B and H from the cylinder Ifin = 0.000000 A B_hall_ini = -0.003910 T B_hall_fin = -0.001330 T VT = 2.228945e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.238303e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.790697e-04 m^2 sample_ID_area = 2.034818e-05 m^2 hole_area = 2.034818e-05 m^2 sample_area = 2.587215e-04 m^2 gap_area = 2.784341e-05 m^2 delta_flux_hole = 5.249830e-08 Tm^2 delta_flux_gap = 7.039927e-08 Tm^2 delta_flux_sample = 1.226013e-05 Tm^2 delta_B = 4.738737e-02 T H_fin = -1.047796e+03 A/m 10:48:28 Measured H and B values: H = -1047.796452 A/m B = -0.018121 T 10:48:28 Summary of measured B and H values: i H B (A/m) (T) --- ---------- ---------- 0 -1047.80 0.001813 1 969.01 0.050589 2 3001.58 0.098419 3 5034.15 0.144400 4 7066.72 0.191167 5 9083.53 0.235830 6 19143.95 0.450543 7 38886.64 0.853076 8 58463.89 1.209443 9 77418.76 1.479104 10 92087.92 1.640898 11 101069.03 1.720937 12 93521.74 1.651886 13 79979.17 1.507291 14 61016.42 1.249205 15 41305.24 0.898822 16 21349.84 0.493183 17 11273.66 0.279064 18 9256.85 0.235093 19 7232.16 0.190263 20 5207.47 0.144723 21 3182.78 0.100045 22 1150.21 0.054072 23 -866.60 0.003911 24 -2907.04 -0.043308 25 -4931.73 -0.088761 26 -6956.42 -0.133710 27 -8965.36 -0.178006 28 -19010.02 -0.394384 29 -38729.08 -0.799604 30 -58282.69 -1.156957 31 -77213.93 -1.431562 32 -91969.74 -1.594808 33 -101029.64 -1.677828 34 -93411.45 -1.610615 35 -79711.31 -1.466568 36 -60764.32 -1.201718 37 -41116.16 -0.853545 38 -21215.91 -0.453293 39 -11155.49 -0.240269 40 -9146.55 -0.198739 41 -7129.74 -0.154366 42 -5097.18 -0.110303 43 -3080.36 -0.065509 44 -1047.80 -0.018121 10:48:28 Symmetrized B and H values: i H B (A/m) (T) --- ---------- ---------- 0 -1047.80 -0.019741 1 969.01 0.029035 2 3001.58 0.076864 3 5034.15 0.122846 4 7066.72 0.169612 5 9083.53 0.214276 6 19143.95 0.428989 7 38886.64 0.831522 8 58463.89 1.187889 9 77418.76 1.457550 10 92087.92 1.619343 11 101069.03 1.699382 12 93521.74 1.630331 13 79979.17 1.485737 14 61016.42 1.227650 15 41305.24 0.877268 16 21349.84 0.471628 17 11273.66 0.257509 18 9256.85 0.213539 19 7232.16 0.168709 20 5207.47 0.123168 21 3182.78 0.078491 22 1150.21 0.032518 23 -866.60 -0.017644 24 -2907.04 -0.064862 25 -4931.73 -0.110315 26 -6956.42 -0.155264 27 -8965.36 -0.199560 28 -19010.02 -0.415939 29 -38729.08 -0.821158 30 -58282.69 -1.178511 31 -77213.93 -1.453116 32 -91969.74 -1.616362 33 -101029.64 -1.699382 34 -93411.45 -1.632169 35 -79711.31 -1.488122 36 -60764.32 -1.223273 37 -41116.16 -0.875099 38 -21215.91 -0.474847 39 -11155.49 -0.261824 40 -9146.55 -0.220293 41 -7129.74 -0.175920 42 -5097.18 -0.131857 43 -3080.36 -0.087063 44 -1047.80 -0.039676 10:48:29 Magnet current ramping to 0.0000 A...