SLAC Magnetic Measurements Date: 05-03-2002 Time: 10:18:21 Project: Spear3 Magnet Type: Permeameter Magnet Name: BabarSteel_A Serial Number: Run Number: 3 Measurement Device: permeameter Operator: zw Comment: repeat with HP3458 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 10:19:14 Hall Probe Zeroed 10:19:27 Hall Probe Type Being Used, type = B9900 10:19:29 Initial Zero Current Measurement, Imag_zero = 0.0000 A 10:19:29 Magnet current ramping to 12.0000 A... 10:19:51 Magnet current ramping to -12.0000 A... 10:20:30 Magnet current ramping to 12.0000 A... 10:21:09 Magnet current ramping to -12.0000 A... 10:21:48 Magnet current ramping to 12.0000 A... 10:22:28 Magnet current ramping to -12.0000 A... 10:23:07 Magnet current ramping to 0.0000 A... 10:24:16 Hall Probe Range Set, range = 4 10:24:16 Hysteresis Loop Measurement Sample Geometry: cylinder 10:24:16 Hall Probe Field Measurement, B = -0.000420 T 10:24:16 Integrated Voltage Measurement... 10:24:17 Magnet current ramping to 0.0000 A... 10:24:40 Voltage Offset Correction: v_off_ini = 0.000014381 V, v_off_fin = 0.000003978 V 10:24:40 Integrated Voltage Measurement Imag = 0.0000 A VT = -0.000024166 Vs 10:24:41 Hall Probe Field Measurement, B = -0.000410 T 10:24:41 Calculate delta B and H from the cylinder Ifin = 0.000000 A B_hall_ini = -0.000420 T B_hall_fin = -0.000410 T VT = -2.416610e-05 V sec N_turns_coil = 180 delta_flux_1_turn = -1.342561e-07 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 1.868080e-10 Tm^2 delta_flux_gap = 2.256553e-10 Tm^2 delta_flux_sample = -1.346686e-07 Tm^2 delta_B = -5.077881e-04 T H_fin = -3.230049e+02 A/m 10:24:41 Measured H and B values: H = -323.004921 A/m B = -0.000508 T 10:24:41 Hall Probe Field Measurement, B = -0.000420 T 10:24:41 Integrated Voltage Measurement... 10:24:42 Magnet current ramping to 0.2000 A... 10:25:07 Voltage Offset Correction: v_off_ini = 0.000000239 V, v_off_fin = 0.000721784 V 10:25:07 Integrated Voltage Measurement Imag = 0.2000 A VT = 0.096876876 Vs 10:25:07 Hall Probe Field Measurement, B = 0.000370 T 10:25:07 Calculate delta B and H from the cylinder Ifin = 0.200000 A B_hall_ini = -0.000420 T B_hall_fin = 0.000370 T VT = 9.687688e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 5.382049e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 1.475783e-08 Tm^2 delta_flux_gap = 1.782677e-08 Tm^2 delta_flux_sample = 5.381723e-04 Tm^2 delta_B = 2.029260e+00 T H_fin = 2.914922e+02 A/m 10:25:08 Measured H and B values: H = 291.492246 A/m B = 2.028752 T 10:25:08 Hall Probe Field Measurement, B = 0.000370 T 10:25:08 Integrated Voltage Measurement... 10:25:09 Magnet current ramping to 0.4000 A... 10:25:34 Voltage Offset Correction: v_off_ini = 0.000064583 V, v_off_fin = 0.000008990 V 10:25:34 Integrated Voltage Measurement Imag = 0.4000 A VT = 0.031432032 Vs 10:25:34 Hall Probe Field Measurement, B = 0.002210 T 10:25:34 Calculate delta B and H from the cylinder Ifin = 0.400000 A B_hall_ini = 0.000370 T B_hall_fin = 0.002210 T VT = 3.143203e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 1.746224e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 3.437267e-08 Tm^2 delta_flux_gap = 4.152058e-08 Tm^2 delta_flux_sample = 1.745465e-04 Tm^2 delta_B = 6.581539e-01 T H_fin = 1.741075e+03 A/m 10:25:35 Measured H and B values: H = 1741.075308 A/m B = 2.686906 T 10:25:35 Hall Probe Field Measurement, B = 0.002210 T 10:25:35 Integrated Voltage Measurement... 10:25:36 Magnet current ramping to 0.6000 A... 10:26:01 Voltage Offset Correction: v_off_ini = 0.000008583 V, v_off_fin = 0.000002381 V 10:26:01 Integrated Voltage Measurement Imag = 0.6000 A VT = 0.006223797 Vs 10:26:01 Hall Probe Field Measurement, B = 0.004710 T 10:26:02 Calculate delta B and H from the cylinder Ifin = 0.600000 A B_hall_ini = 0.002210 T B_hall_fin = 0.004710 T VT = 6.223797e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 3.457665e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.670200e-08 Tm^2 delta_flux_gap = 5.641383e-08 Tm^2 delta_flux_sample = 3.447353e-05 Tm^2 delta_B = 1.299877e-01 T H_fin = 3.710618e+03 A/m 10:26:02 Measured H and B values: H = 3710.617512 A/m B = 2.816893 T 10:26:02 Hall Probe Field Measurement, B = 0.004710 T 10:26:02 Integrated Voltage Measurement... 10:26:03 Magnet current ramping to 0.8000 A... 10:26:28 Voltage Offset Correction: v_off_ini = 0.000006724 V, v_off_fin = -0.000020948 V 10:26:28 Integrated Voltage Measurement Imag = 0.8000 A VT = 0.003505177 Vs 10:26:29 Hall Probe Field Measurement, B = 0.007340 T 10:26:29 Calculate delta B and H from the cylinder Ifin = 0.800000 A B_hall_ini = 0.004710 T B_hall_fin = 0.007340 T VT = 3.505177e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.947321e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.913050e-08 Tm^2 delta_flux_gap = 5.934735e-08 Tm^2 delta_flux_sample = 1.936473e-05 Tm^2 delta_B = 7.301763e-02 T H_fin = 5.782576e+03 A/m 10:26:29 Measured H and B values: H = 5782.575910 A/m B = 2.889911 T 10:26:29 Hall Probe Field Measurement, B = 0.007340 T 10:26:29 Integrated Voltage Measurement... 10:26:30 Magnet current ramping to 1.0000 A... 10:26:55 Voltage Offset Correction: v_off_ini = -0.000009247 V, v_off_fin = 0.000002068 V 10:26:55 Integrated Voltage Measurement Imag = 1.0000 A VT = 0.002524304 Vs 10:26:56 Hall Probe Field Measurement, B = 0.009930 T 10:26:56 Calculate delta B and H from the cylinder Ifin = 1.000000 A B_hall_ini = 0.007340 T B_hall_fin = 0.009930 T VT = 2.524304e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.402391e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.838327e-08 Tm^2 delta_flux_gap = 5.844473e-08 Tm^2 delta_flux_sample = 1.391708e-05 Tm^2 delta_B = 5.247646e-02 T H_fin = 7.823022e+03 A/m 10:26:56 Measured H and B values: H = 7823.021633 A/m B = 2.942387 T 10:26:56 Hall Probe Field Measurement, B = 0.009930 T 10:26:57 Integrated Voltage Measurement... 10:26:58 Magnet current ramping to 2.0000 A... 10:27:30 Voltage Offset Correction: v_off_ini = 0.000001243 V, v_off_fin = 0.000007713 V 10:27:30 Integrated Voltage Measurement Imag = 2.0000 A VT = 0.008169476 Vs 10:27:31 Hall Probe Field Measurement, B = 0.022870 T 10:27:31 Calculate delta B and H from the cylinder Ifin = 2.000000 A B_hall_ini = 0.009930 T B_hall_fin = 0.022870 T VT = 8.169476e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 4.538598e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 2.417295e-07 Tm^2 delta_flux_gap = 2.919980e-07 Tm^2 delta_flux_sample = 4.485225e-05 Tm^2 delta_B = 1.691222e-01 T H_fin = 1.801737e+04 A/m 10:27:31 Measured H and B values: H = 18017.372078 A/m B = 3.111510 T 10:27:31 Hall Probe Field Measurement, B = 0.022870 T 10:27:31 Integrated Voltage Measurement... 10:27:32 Magnet current ramping to 4.0000 A... 10:28:15 Voltage Offset Correction: v_off_ini = 0.000006618 V, v_off_fin = 0.000007030 V 10:28:15 Integrated Voltage Measurement Imag = 4.0000 A VT = 0.007884166 Vs 10:28:15 Hall Probe Field Measurement, B = 0.047200 T 10:28:15 Calculate delta B and H from the cylinder Ifin = 4.000000 A B_hall_ini = 0.022870 T B_hall_fin = 0.047200 T VT = 7.884166e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 4.380092e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.545038e-07 Tm^2 delta_flux_gap = 5.490194e-07 Tm^2 delta_flux_sample = 4.279740e-05 Tm^2 delta_B = 1.613740e-01 T H_fin = 3.718496e+04 A/m 10:28:15 Measured H and B values: H = 37184.956804 A/m B = 3.272884 T 10:28:16 Hall Probe Field Measurement, B = 0.047210 T 10:28:16 Integrated Voltage Measurement... 10:28:17 Magnet current ramping to 6.0000 A... 10:28:59 Voltage Offset Correction: v_off_ini = -0.000007510 V, v_off_fin = 0.000000598 V 10:28:59 Integrated Voltage Measurement Imag = 6.0000 A VT = 0.002797511 Vs 10:28:59 Hall Probe Field Measurement, B = 0.069750 T 10:28:59 Calculate delta B and H from the cylinder Ifin = 6.000000 A B_hall_ini = 0.047210 T B_hall_fin = 0.069750 T VT = 2.797511e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.554173e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.210652e-07 Tm^2 delta_flux_gap = 5.086271e-07 Tm^2 delta_flux_sample = 1.461204e-05 Tm^2 delta_B = 5.509688e-02 T H_fin = 5.495023e+04 A/m 10:28:59 Measured H and B values: H = 54950.227480 A/m B = 3.327981 T 10:29:00 Hall Probe Field Measurement, B = 0.069730 T 10:29:00 Integrated Voltage Measurement... 10:29:01 Magnet current ramping to 8.0000 A... 10:29:43 Voltage Offset Correction: v_off_ini = -0.000002760 V, v_off_fin = -0.000000435 V 10:29:43 Integrated Voltage Measurement Imag = 8.0000 A VT = 0.001622364 Vs 10:29:43 Hall Probe Field Measurement, B = 0.091450 T 10:29:43 Calculate delta B and H from the cylinder Ifin = 8.000000 A B_hall_ini = 0.069730 T B_hall_fin = 0.091450 T VT = 1.622364e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 9.013131e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.057469e-07 Tm^2 delta_flux_gap = 4.901234e-07 Tm^2 delta_flux_sample = 8.117261e-06 Tm^2 delta_B = 3.060735e-02 T H_fin = 7.204585e+04 A/m 10:29:43 Measured H and B values: H = 72045.853807 A/m B = 3.358588 T 10:29:44 Hall Probe Field Measurement, B = 0.091440 T 10:29:44 Integrated Voltage Measurement... 10:29:45 Magnet current ramping to 10.0000 A... 10:30:27 Voltage Offset Correction: v_off_ini = 0.000000496 V, v_off_fin = 0.000000689 V 10:30:27 Integrated Voltage Measurement Imag = 10.0000 A VT = 0.001052376 Vs 10:30:27 Hall Probe Field Measurement, B = 0.107800 T 10:30:27 Calculate delta B and H from the cylinder Ifin = 10.000000 A B_hall_ini = 0.091440 T B_hall_fin = 0.107800 T VT = 1.052376e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 5.846534e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 3.056179e-07 Tm^2 delta_flux_gap = 3.691721e-07 Tm^2 delta_flux_sample = 5.171744e-06 Tm^2 delta_B = 1.950084e-02 T H_fin = 8.492666e+04 A/m 10:30:27 Measured H and B values: H = 84926.659819 A/m B = 3.378089 T 10:30:28 Hall Probe Field Measurement, B = 0.107770 T 10:30:28 Integrated Voltage Measurement... 10:30:29 Magnet current ramping to 12.0000 A... 10:31:11 Voltage Offset Correction: v_off_ini = 0.000000624 V, v_off_fin = 0.000000412 V 10:31:11 Integrated Voltage Measurement Imag = 12.0000 A VT = 0.000630783 Vs 10:31:11 Hall Probe Field Measurement, B = 0.117940 T 10:31:11 Calculate delta B and H from the cylinder Ifin = 12.000000 A B_hall_ini = 0.107770 T B_hall_fin = 0.117940 T VT = 6.307833e-04 V sec N_turns_coil = 180 delta_flux_1_turn = 3.504352e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 1.899837e-07 Tm^2 delta_flux_gap = 2.294915e-07 Tm^2 delta_flux_sample = 3.084877e-06 Tm^2 delta_B = 1.163199e-02 T H_fin = 9.291512e+04 A/m 10:31:11 Measured H and B values: H = 92915.122997 A/m B = 3.389721 T 10:31:12 Hall Probe Field Measurement, B = 0.117940 T 10:31:12 Integrated Voltage Measurement... 10:31:13 Magnet current ramping to 10.0000 A... 10:31:55 Voltage Offset Correction: v_off_ini = 0.000000553 V, v_off_fin = -0.000000317 V 10:31:55 Integrated Voltage Measurement Imag = 10.0000 A VT = -0.000531778 Vs 10:31:55 Hall Probe Field Measurement, B = 0.109290 T 10:31:55 Calculate delta B and H from the cylinder Ifin = 10.000000 A B_hall_ini = 0.117940 T B_hall_fin = 0.109290 T VT = -5.317775e-04 V sec N_turns_coil = 180 delta_flux_1_turn = -2.954320e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -1.615889e-07 Tm^2 delta_flux_gap = -1.951919e-07 Tm^2 delta_flux_sample = -2.597539e-06 Tm^2 delta_B = -9.794411e-03 T H_fin = 8.610051e+04 A/m 10:31:55 Measured H and B values: H = 86100.506972 A/m B = 3.379926 T 10:31:56 Hall Probe Field Measurement, B = 0.109290 T 10:31:56 Integrated Voltage Measurement... 10:31:57 Magnet current ramping to 8.0000 A... 10:32:39 Voltage Offset Correction: v_off_ini = 0.000000318 V, v_off_fin = -0.000000696 V 10:32:39 Integrated Voltage Measurement Imag = 8.0000 A VT = -0.000945873 Vs 10:32:39 Hall Probe Field Measurement, B = 0.094290 T 10:32:39 Calculate delta B and H from the cylinder Ifin = 8.000000 A B_hall_ini = 0.109290 T B_hall_fin = 0.094290 T VT = -9.458734e-04 V sec N_turns_coil = 180 delta_flux_1_turn = -5.254852e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -2.802120e-07 Tm^2 delta_flux_gap = -3.384830e-07 Tm^2 delta_flux_sample = -4.636157e-06 Tm^2 delta_B = -1.748133e-02 T H_fin = 7.428325e+04 A/m 10:32:39 Measured H and B values: H = 74283.253751 A/m B = 3.362445 T 10:32:40 Hall Probe Field Measurement, B = 0.094280 T 10:32:40 Integrated Voltage Measurement... 10:32:41 Magnet current ramping to 6.0000 A... 10:33:23 Voltage Offset Correction: v_off_ini = 0.000000540 V, v_off_fin = 0.000000263 V 10:33:23 Integrated Voltage Measurement Imag = 6.0000 A VT = -0.001541284 Vs 10:33:23 Hall Probe Field Measurement, B = 0.072590 T 10:33:23 Calculate delta B and H from the cylinder Ifin = 6.000000 A B_hall_ini = 0.094280 T B_hall_fin = 0.072590 T VT = -1.541284e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -8.562687e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.051865e-07 Tm^2 delta_flux_gap = -4.894464e-07 Tm^2 delta_flux_sample = -7.668054e-06 Tm^2 delta_B = -2.891355e-02 T H_fin = 5.718763e+04 A/m 10:33:23 Measured H and B values: H = 57187.627423 A/m B = 3.333531 T 10:33:24 Hall Probe Field Measurement, B = 0.072590 T 10:33:24 Integrated Voltage Measurement... 10:33:25 Magnet current ramping to 4.0000 A... 10:34:07 Voltage Offset Correction: v_off_ini = 0.000000679 V, v_off_fin = 0.000000401 V 10:34:07 Integrated Voltage Measurement Imag = 4.0000 A VT = -0.002455522 Vs 10:34:07 Hall Probe Field Measurement, B = 0.049970 T 10:34:07 Calculate delta B and H from the cylinder Ifin = 4.000000 A B_hall_ini = 0.072590 T B_hall_fin = 0.049970 T VT = -2.455522e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.364179e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.225597e-07 Tm^2 delta_flux_gap = -5.104324e-07 Tm^2 delta_flux_sample = -1.270880e-05 Tm^2 delta_B = -4.792043e-02 T H_fin = 3.936721e+04 A/m 10:34:07 Measured H and B values: H = 39367.209565 A/m B = 3.285611 T 10:34:08 Hall Probe Field Measurement, B = 0.049970 T 10:34:08 Integrated Voltage Measurement... 10:34:09 Magnet current ramping to 2.0000 A... 10:34:51 Voltage Offset Correction: v_off_ini = 0.000000765 V, v_off_fin = -0.000002619 V 10:34:51 Integrated Voltage Measurement Imag = 2.0000 A VT = -0.007016212 Vs 10:34:52 Hall Probe Field Measurement, B = 0.025790 T 10:34:52 Calculate delta B and H from the cylinder Ifin = 2.000000 A B_hall_ini = 0.049970 T B_hall_fin = 0.025790 T VT = -7.016212e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -3.897896e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.517017e-07 Tm^2 delta_flux_gap = -5.456346e-07 Tm^2 delta_flux_sample = -3.798162e-05 Tm^2 delta_B = -1.432154e-01 T H_fin = 2.031780e+04 A/m 10:34:52 Measured H and B values: H = 20317.797372 A/m B = 3.142396 T 10:34:53 Hall Probe Field Measurement, B = 0.025800 T 10:34:53 Integrated Voltage Measurement... 10:34:54 Magnet current ramping to 1.0000 A... 10:35:26 Voltage Offset Correction: v_off_ini = -0.000014024 V, v_off_fin = 0.000001436 V 10:35:26 Integrated Voltage Measurement Imag = 1.0000 A VT = -0.006989483 Vs 10:35:27 Hall Probe Field Measurement, B = 0.012930 T 10:35:27 Calculate delta B and H from the cylinder Ifin = 1.000000 A B_hall_ini = 0.025800 T B_hall_fin = 0.012930 T VT = -6.989483e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -3.883046e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -2.404219e-07 Tm^2 delta_flux_gap = -2.904184e-07 Tm^2 delta_flux_sample = -3.829962e-05 Tm^2 delta_B = -1.444145e-01 T H_fin = 1.018647e+04 A/m 10:35:27 Measured H and B values: H = 10186.472277 A/m B = 2.997981 T 10:35:27 Hall Probe Field Measurement, B = 0.012930 T 10:35:27 Integrated Voltage Measurement... 10:35:29 Magnet current ramping to 0.8000 A... 10:35:53 Voltage Offset Correction: v_off_ini = 0.000000519 V, v_off_fin = -0.000000285 V 10:35:53 Integrated Voltage Measurement Imag = 0.8000 A VT = -0.001927971 Vs 10:35:54 Hall Probe Field Measurement, B = 0.010340 T 10:35:54 Calculate delta B and H from the cylinder Ifin = 0.800000 A B_hall_ini = 0.012930 T B_hall_fin = 0.010340 T VT = -1.927971e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.071095e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.838327e-08 Tm^2 delta_flux_gap = -5.844473e-08 Tm^2 delta_flux_sample = -1.060412e-05 Tm^2 delta_B = -3.998445e-02 T H_fin = 8.146027e+03 A/m 10:35:54 Measured H and B values: H = 8146.026554 A/m B = 2.957997 T 10:35:54 Hall Probe Field Measurement, B = 0.010340 T 10:35:54 Integrated Voltage Measurement... 10:35:55 Magnet current ramping to 0.6000 A... 10:36:20 Voltage Offset Correction: v_off_ini = -0.000001017 V, v_off_fin = -0.000000700 V 10:36:20 Integrated Voltage Measurement Imag = 0.6000 A VT = -0.002290076 Vs 10:36:22 Hall Probe Field Measurement, B = 0.007690 T 10:36:22 Calculate delta B and H from the cylinder Ifin = 0.600000 A B_hall_ini = 0.010340 T B_hall_fin = 0.007690 T VT = -2.290076e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.272264e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.950412e-08 Tm^2 delta_flux_gap = -5.979866e-08 Tm^2 delta_flux_sample = -1.261334e-05 Tm^2 delta_B = -4.756050e-02 T H_fin = 6.058312e+03 A/m 10:36:22 Measured H and B values: H = 6058.311818 A/m B = 2.910436 T 10:36:22 Hall Probe Field Measurement, B = 0.007690 T 10:36:22 Integrated Voltage Measurement... 10:36:23 Magnet current ramping to 0.4000 A... 10:36:48 Voltage Offset Correction: v_off_ini = 0.000001212 V, v_off_fin = -0.000000386 V 10:36:48 Integrated Voltage Measurement Imag = 0.4000 A VT = -0.002837783 Vs 10:36:48 Hall Probe Field Measurement, B = 0.005060 T 10:36:48 Calculate delta B and H from the cylinder Ifin = 0.400000 A B_hall_ini = 0.007690 T B_hall_fin = 0.005060 T VT = -2.837783e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.576546e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.913050e-08 Tm^2 delta_flux_gap = -5.934735e-08 Tm^2 delta_flux_sample = -1.565699e-05 Tm^2 delta_B = -5.903702e-02 T H_fin = 3.986353e+03 A/m 10:36:48 Measured H and B values: H = 3986.353420 A/m B = 2.851399 T 10:36:49 Hall Probe Field Measurement, B = 0.005060 T 10:36:49 Integrated Voltage Measurement... 10:36:50 Magnet current ramping to 0.2000 A... 10:37:15 Voltage Offset Correction: v_off_ini = 0.000000475 V, v_off_fin = -0.000000369 V 10:37:15 Integrated Voltage Measurement Imag = 0.2000 A VT = -0.004306205 Vs 10:37:15 Hall Probe Field Measurement, B = 0.002460 T 10:37:15 Calculate delta B and H from the cylinder Ifin = 0.200000 A B_hall_ini = 0.005060 T B_hall_fin = 0.002460 T VT = -4.306205e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -2.392336e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.857008e-08 Tm^2 delta_flux_gap = -5.867039e-08 Tm^2 delta_flux_sample = -2.381612e-05 Tm^2 delta_B = -8.980228e-02 T H_fin = 1.938030e+03 A/m 10:37:15 Measured H and B values: H = 1938.029528 A/m B = 2.761597 T 10:37:16 Hall Probe Field Measurement, B = 0.002460 T 10:37:16 Integrated Voltage Measurement... 10:37:17 Magnet current ramping to 0.0000 A... 10:37:42 Voltage Offset Correction: v_off_ini = 0.000000614 V, v_off_fin = -0.000035455 V 10:37:42 Integrated Voltage Measurement Imag = 0.0000 A VT = -0.016135013 Vs 10:37:42 Hall Probe Field Measurement, B = 0.000310 T 10:37:42 Calculate delta B and H from the cylinder Ifin = 0.000000 A B_hall_ini = 0.002460 T B_hall_fin = 0.000310 T VT = -1.613501e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -8.963896e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.016372e-08 Tm^2 delta_flux_gap = -4.851590e-08 Tm^2 delta_flux_sample = -8.955028e-05 Tm^2 delta_B = -3.376628e-01 T H_fin = 2.442232e+02 A/m 10:37:42 Measured H and B values: H = 244.223233 A/m B = 2.423934 T 10:37:43 Hall Probe Field Measurement, B = 0.000300 T 10:37:43 Integrated Voltage Measurement... 10:37:44 Magnet current ramping to -0.2000 A... 10:38:09 Voltage Offset Correction: v_off_ini = -0.000001381 V, v_off_fin = -0.000567380 V 10:38:09 Integrated Voltage Measurement Imag = -0.2000 A VT = -0.102143753 Vs 10:38:09 Hall Probe Field Measurement, B = -0.000450 T 10:38:09 Calculate delta B and H from the cylinder Ifin = -0.200000 A B_hall_ini = 0.000300 T B_hall_fin = -0.000450 T VT = -1.021438e-01 V sec N_turns_coil = 180 delta_flux_1_turn = -5.674653e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -1.401060e-08 Tm^2 delta_flux_gap = -1.692415e-08 Tm^2 delta_flux_sample = -5.674344e-04 Tm^2 delta_B = -2.139597e+00 T H_fin = -3.545176e+02 A/m 10:38:10 Measured H and B values: H = -354.517597 A/m B = 0.284337 T 10:38:10 Hall Probe Field Measurement, B = -0.000450 T 10:38:10 Integrated Voltage Measurement... 10:38:11 Magnet current ramping to -0.4000 A... 10:38:36 Voltage Offset Correction: v_off_ini = -0.000066492 V, v_off_fin = -0.000007675 V 10:38:36 Integrated Voltage Measurement Imag = -0.4000 A VT = -0.025105532 Vs 10:38:36 Hall Probe Field Measurement, B = -0.002410 T 10:38:36 Calculate delta B and H from the cylinder Ifin = -0.400000 A B_hall_ini = -0.000450 T B_hall_fin = -0.002410 T VT = -2.510553e-02 V sec N_turns_coil = 180 delta_flux_1_turn = -1.394752e-04 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -3.661437e-08 Tm^2 delta_flux_gap = -4.422845e-08 Tm^2 delta_flux_sample = -1.393943e-04 Tm^2 delta_B = -5.256073e-01 T H_fin = -1.898639e+03 A/m 10:38:37 Measured H and B values: H = -1898.638684 A/m B = -0.241270 T 10:38:37 Hall Probe Field Measurement, B = -0.002420 T 10:38:37 Integrated Voltage Measurement... 10:38:38 Magnet current ramping to -0.6000 A... 10:39:03 Voltage Offset Correction: v_off_ini = -0.000000052 V, v_off_fin = 0.000004084 V 10:39:03 Integrated Voltage Measurement Imag = -0.6000 A VT = -0.005759905 Vs 10:39:03 Hall Probe Field Measurement, B = -0.004930 T 10:39:03 Calculate delta B and H from the cylinder Ifin = -0.600000 A B_hall_ini = -0.002420 T B_hall_fin = -0.004930 T VT = -5.759905e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -3.199947e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.688880e-08 Tm^2 delta_flux_gap = -5.663949e-08 Tm^2 delta_flux_sample = -3.189594e-05 Tm^2 delta_B = -1.202685e-01 T H_fin = -3.883937e+03 A/m 10:39:04 Measured H and B values: H = -3883.937225 A/m B = -0.361538 T 10:39:04 Hall Probe Field Measurement, B = -0.004930 T 10:39:04 Integrated Voltage Measurement... 10:39:05 Magnet current ramping to -0.8000 A... 10:39:30 Voltage Offset Correction: v_off_ini = -0.000006753 V, v_off_fin = -0.000003541 V 10:39:30 Integrated Voltage Measurement Imag = -0.8000 A VT = -0.003208026 Vs 10:39:31 Hall Probe Field Measurement, B = -0.007560 T 10:39:31 Calculate delta B and H from the cylinder Ifin = -0.800000 A B_hall_ini = -0.004930 T B_hall_fin = -0.007560 T VT = -3.208026e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.782237e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.913050e-08 Tm^2 delta_flux_gap = -5.934735e-08 Tm^2 delta_flux_sample = -1.771389e-05 Tm^2 delta_B = -6.679288e-02 T H_fin = -5.955896e+03 A/m 10:39:31 Measured H and B values: H = -5955.895624 A/m B = -0.428331 T 10:39:31 Hall Probe Field Measurement, B = -0.007560 T 10:39:31 Integrated Voltage Measurement... 10:39:32 Magnet current ramping to -1.0000 A... 10:39:57 Voltage Offset Correction: v_off_ini = -0.000004082 V, v_off_fin = 0.000001596 V 10:39:57 Integrated Voltage Measurement Imag = -1.0000 A VT = -0.002404823 Vs 10:39:57 Hall Probe Field Measurement, B = -0.010160 T 10:39:57 Calculate delta B and H from the cylinder Ifin = -1.000000 A B_hall_ini = -0.007560 T B_hall_fin = -0.010160 T VT = -2.404823e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.336013e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.857008e-08 Tm^2 delta_flux_gap = -5.867039e-08 Tm^2 delta_flux_sample = -1.325289e-05 Tm^2 delta_B = -4.997200e-02 T H_fin = -8.004220e+03 A/m 10:39:57 Measured H and B values: H = -8004.219515 A/m B = -0.478303 T 10:39:58 Hall Probe Field Measurement, B = -0.010160 T 10:39:58 Integrated Voltage Measurement... 10:39:59 Magnet current ramping to -2.0000 A... 10:40:32 Voltage Offset Correction: v_off_ini = -0.000001179 V, v_off_fin = 0.000004132 V 10:40:32 Integrated Voltage Measurement Imag = -2.0000 A VT = -0.008163920 Vs 10:40:32 Hall Probe Field Measurement, B = -0.023100 T 10:40:32 Calculate delta B and H from the cylinder Ifin = -2.000000 A B_hall_ini = -0.010160 T B_hall_fin = -0.023100 T VT = -8.163920e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -4.535511e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -2.417295e-07 Tm^2 delta_flux_gap = -2.919980e-07 Tm^2 delta_flux_sample = -4.482139e-05 Tm^2 delta_B = -1.690058e-01 T H_fin = -1.819857e+04 A/m 10:40:32 Measured H and B values: H = -18198.569961 A/m B = -0.647309 T 10:40:33 Hall Probe Field Measurement, B = -0.023100 T 10:40:33 Integrated Voltage Measurement... 10:40:34 Magnet current ramping to -4.0000 A... 10:41:16 Voltage Offset Correction: v_off_ini = -0.000001660 V, v_off_fin = 0.000000917 V 10:41:16 Integrated Voltage Measurement Imag = -4.0000 A VT = -0.007904138 Vs 10:41:17 Hall Probe Field Measurement, B = -0.047420 T 10:41:17 Calculate delta B and H from the cylinder Ifin = -4.000000 A B_hall_ini = -0.023100 T B_hall_fin = -0.047420 T VT = -7.904138e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -4.391188e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.543170e-07 Tm^2 delta_flux_gap = -5.487938e-07 Tm^2 delta_flux_sample = -4.290877e-05 Tm^2 delta_B = -1.617940e-01 T H_fin = -3.735828e+04 A/m 10:41:17 Measured H and B values: H = -37358.276518 A/m B = -0.809103 T 10:41:17 Hall Probe Field Measurement, B = -0.047420 T 10:41:17 Integrated Voltage Measurement... 10:41:18 Magnet current ramping to -6.0000 A... 10:42:00 Voltage Offset Correction: v_off_ini = 0.000001242 V, v_off_fin = 0.000000278 V 10:42:00 Integrated Voltage Measurement Imag = -6.0000 A VT = -0.002688821 Vs 10:42:01 Hall Probe Field Measurement, B = -0.069970 T 10:42:02 Calculate delta B and H from the cylinder Ifin = -6.000000 A B_hall_ini = -0.047420 T B_hall_fin = -0.069970 T VT = -2.688821e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -1.493789e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.212520e-07 Tm^2 delta_flux_gap = -5.088528e-07 Tm^2 delta_flux_sample = -1.400779e-05 Tm^2 delta_B = -5.281848e-02 T H_fin = -5.512355e+04 A/m 10:42:02 Measured H and B values: H = -55123.547194 A/m B = -0.861922 T 10:42:02 Hall Probe Field Measurement, B = -0.069980 T 10:42:02 Integrated Voltage Measurement... 10:42:03 Magnet current ramping to -8.0000 A... 10:42:45 Voltage Offset Correction: v_off_ini = 0.000000917 V, v_off_fin = -0.000004221 V 10:42:45 Integrated Voltage Measurement Imag = -8.0000 A VT = -0.001536711 Vs 10:42:46 Hall Probe Field Measurement, B = -0.091660 T 10:42:46 Calculate delta B and H from the cylinder Ifin = -8.000000 A B_hall_ini = -0.069980 T B_hall_fin = -0.091660 T VT = -1.536711e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -8.537281e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -4.049997e-07 Tm^2 delta_flux_gap = -4.892208e-07 Tm^2 delta_flux_sample = -7.643061e-06 Tm^2 delta_B = -2.881931e-02 T H_fin = -7.221130e+04 A/m 10:42:46 Measured H and B values: H = -72211.295352 A/m B = -0.890741 T 10:42:46 Hall Probe Field Measurement, B = -0.091660 T 10:42:46 Integrated Voltage Measurement... 10:42:47 Magnet current ramping to -10.0000 A... 10:43:29 Voltage Offset Correction: v_off_ini = 0.000003962 V, v_off_fin = -0.000000606 V 10:43:29 Integrated Voltage Measurement Imag = -10.0000 A VT = -0.001068502 Vs 10:43:30 Hall Probe Field Measurement, B = -0.107920 T 10:43:30 Calculate delta B and H from the cylinder Ifin = -10.000000 A B_hall_ini = -0.091660 T B_hall_fin = -0.107920 T VT = -1.068502e-03 V sec N_turns_coil = 180 delta_flux_1_turn = -5.936124e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -3.037498e-07 Tm^2 delta_flux_gap = -3.669156e-07 Tm^2 delta_flux_sample = -5.265459e-06 Tm^2 delta_B = -1.985421e-02 T H_fin = -8.502120e+04 A/m 10:43:30 Measured H and B values: H = -85021.197845 A/m B = -0.910595 T 10:43:30 Hall Probe Field Measurement, B = -0.107920 T 10:43:30 Integrated Voltage Measurement... 10:43:31 Magnet current ramping to -12.0000 A... 10:44:13 Voltage Offset Correction: v_off_ini = 0.000000933 V, v_off_fin = 0.000000055 V 10:44:13 Integrated Voltage Measurement Imag = -12.0000 A VT = -0.000620819 Vs 10:44:14 Hall Probe Field Measurement, B = -0.118010 T 10:44:14 Calculate delta B and H from the cylinder Ifin = -12.000000 A B_hall_ini = -0.107920 T B_hall_fin = -0.118010 T VT = -6.208193e-04 V sec N_turns_coil = 180 delta_flux_1_turn = -3.448996e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = -1.884893e-07 Tm^2 delta_flux_gap = -2.276862e-07 Tm^2 delta_flux_sample = -3.032821e-06 Tm^2 delta_B = -1.143571e-02 T H_fin = -9.297027e+04 A/m 10:44:14 Measured H and B values: H = -92970.270178 A/m B = -0.922031 T 10:44:14 Hall Probe Field Measurement, B = -0.118040 T 10:44:14 Integrated Voltage Measurement... 10:44:15 Magnet current ramping to -10.0000 A... 10:44:57 Voltage Offset Correction: v_off_ini = 0.000002001 V, v_off_fin = 0.000001847 V 10:44:57 Integrated Voltage Measurement Imag = -10.0000 A VT = 0.000517792 Vs 10:44:58 Hall Probe Field Measurement, B = -0.109420 T 10:44:58 Calculate delta B and H from the cylinder Ifin = -10.000000 A B_hall_ini = -0.118040 T B_hall_fin = -0.109420 T VT = 5.177917e-04 V sec N_turns_coil = 180 delta_flux_1_turn = 2.876621e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 1.610285e-07 Tm^2 delta_flux_gap = 1.945149e-07 Tm^2 delta_flux_sample = 2.521077e-06 Tm^2 delta_B = 9.506102e-03 T H_fin = -8.620292e+04 A/m 10:44:58 Measured H and B values: H = -86202.923167 A/m B = -0.912525 T 10:44:58 Hall Probe Field Measurement, B = -0.109430 T 10:44:58 Integrated Voltage Measurement... 10:44:59 Magnet current ramping to -8.0000 A... 10:45:41 Voltage Offset Correction: v_off_ini = 0.000001889 V, v_off_fin = 0.000001307 V 10:45:41 Integrated Voltage Measurement Imag = -8.0000 A VT = 0.000945769 Vs 10:45:42 Hall Probe Field Measurement, B = -0.094490 T 10:45:42 Calculate delta B and H from the cylinder Ifin = -8.000000 A B_hall_ini = -0.109430 T B_hall_fin = -0.094490 T VT = 9.457689e-04 V sec N_turns_coil = 180 delta_flux_1_turn = 5.254272e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 2.790911e-07 Tm^2 delta_flux_gap = 3.371291e-07 Tm^2 delta_flux_sample = 4.638052e-06 Tm^2 delta_B = 1.748847e-02 T H_fin = -7.444082e+04 A/m 10:45:42 Measured H and B values: H = -74440.817127 A/m B = -0.895036 T 10:45:42 Hall Probe Field Measurement, B = -0.094500 T 10:45:42 Integrated Voltage Measurement... 10:45:44 Magnet current ramping to -6.0000 A... 10:46:25 Voltage Offset Correction: v_off_ini = 0.000002026 V, v_off_fin = 0.000001596 V 10:46:25 Integrated Voltage Measurement Imag = -6.0000 A VT = 0.001534442 Vs 10:46:26 Hall Probe Field Measurement, B = -0.072800 T 10:46:26 Calculate delta B and H from the cylinder Ifin = -6.000000 A B_hall_ini = -0.094500 T B_hall_fin = -0.072800 T VT = 1.534442e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 8.524679e-06 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.053733e-07 Tm^2 delta_flux_gap = 4.896721e-07 Tm^2 delta_flux_sample = 7.629634e-06 Tm^2 delta_B = 2.876868e-02 T H_fin = -5.735307e+04 A/m 10:46:26 Measured H and B values: H = -57353.068969 A/m B = -0.866268 T 10:46:26 Hall Probe Field Measurement, B = -0.072800 T 10:46:26 Integrated Voltage Measurement... 10:46:28 Magnet current ramping to -4.0000 A... 10:47:09 Voltage Offset Correction: v_off_ini = 0.000001556 V, v_off_fin = 0.000001429 V 10:47:09 Integrated Voltage Measurement Imag = -4.0000 A VT = 0.002421923 Vs 10:47:10 Hall Probe Field Measurement, B = -0.050170 T 10:47:10 Calculate delta B and H from the cylinder Ifin = -4.000000 A B_hall_ini = -0.072800 T B_hall_fin = -0.050170 T VT = 2.421923e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.345513e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.227465e-07 Tm^2 delta_flux_gap = 5.106580e-07 Tm^2 delta_flux_sample = 1.252172e-05 Tm^2 delta_B = 4.721504e-02 T H_fin = -3.952477e+04 A/m 10:47:10 Measured H and B values: H = -39524.772942 A/m B = -0.819053 T 10:47:10 Hall Probe Field Measurement, B = -0.050190 T 10:47:10 Integrated Voltage Measurement... 10:47:12 Magnet current ramping to -2.0000 A... 10:47:53 Voltage Offset Correction: v_off_ini = 0.000001567 V, v_off_fin = 0.000002398 V 10:47:53 Integrated Voltage Measurement Imag = -2.0000 A VT = 0.006999884 Vs 10:47:54 Hall Probe Field Measurement, B = -0.026020 T 10:47:54 Calculate delta B and H from the cylinder Ifin = -2.000000 A B_hall_ini = -0.050190 T B_hall_fin = -0.026020 T VT = 6.999884e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 3.888824e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.515149e-07 Tm^2 delta_flux_gap = 5.454089e-07 Tm^2 delta_flux_sample = 3.789132e-05 Tm^2 delta_B = 1.428749e-01 T H_fin = -2.049900e+04 A/m 10:47:54 Measured H and B values: H = -20498.995255 A/m B = -0.676178 T 10:47:55 Hall Probe Field Measurement, B = -0.026020 T 10:47:55 Integrated Voltage Measurement... 10:47:56 Magnet current ramping to -1.0000 A... 10:48:28 Voltage Offset Correction: v_off_ini = 0.000000911 V, v_off_fin = 0.000004529 V 10:48:28 Integrated Voltage Measurement Imag = -1.0000 A VT = 0.006997757 Vs 10:48:29 Hall Probe Field Measurement, B = -0.013150 T 10:48:29 Calculate delta B and H from the cylinder Ifin = -1.000000 A B_hall_ini = -0.026020 T B_hall_fin = -0.013150 T VT = 6.997757e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 3.887643e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 2.404219e-07 Tm^2 delta_flux_gap = 2.904184e-07 Tm^2 delta_flux_sample = 3.834559e-05 Tm^2 delta_B = 1.445878e-01 T H_fin = -1.035979e+04 A/m 10:48:29 Measured H and B values: H = -10359.791991 A/m B = -0.531590 T 10:48:30 Hall Probe Field Measurement, B = -0.013150 T 10:48:30 Integrated Voltage Measurement... 10:48:31 Magnet current ramping to -0.8000 A... 10:48:55 Voltage Offset Correction: v_off_ini = 0.000002957 V, v_off_fin = 0.000005174 V 10:48:55 Integrated Voltage Measurement Imag = -0.8000 A VT = 0.001869407 Vs 10:48:56 Hall Probe Field Measurement, B = -0.010560 T 10:48:56 Calculate delta B and H from the cylinder Ifin = -0.800000 A B_hall_ini = -0.013150 T B_hall_fin = -0.010560 T VT = 1.869407e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.038560e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.838327e-08 Tm^2 delta_flux_gap = 5.844473e-08 Tm^2 delta_flux_sample = 1.027877e-05 Tm^2 delta_B = 3.875765e-02 T H_fin = -8.319346e+03 A/m 10:48:56 Measured H and B values: H = -8319.346268 A/m B = -0.492832 T 10:48:56 Hall Probe Field Measurement, B = -0.010560 T 10:48:56 Integrated Voltage Measurement... 10:48:57 Magnet current ramping to -0.6000 A... 10:49:22 Voltage Offset Correction: v_off_ini = -0.000001063 V, v_off_fin = -0.000021930 V 10:49:22 Integrated Voltage Measurement Imag = -0.6000 A VT = 0.002416174 Vs 10:49:23 Hall Probe Field Measurement, B = -0.007910 T 10:49:23 Calculate delta B and H from the cylinder Ifin = -0.600000 A B_hall_ini = -0.010560 T B_hall_fin = -0.007910 T VT = 2.416174e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.342319e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.950412e-08 Tm^2 delta_flux_gap = 5.979866e-08 Tm^2 delta_flux_sample = 1.331389e-05 Tm^2 delta_B = 5.020201e-02 T H_fin = -6.231632e+03 A/m 10:49:24 Measured H and B values: H = -6231.631532 A/m B = -0.442630 T 10:49:24 Hall Probe Field Measurement, B = -0.007910 T 10:49:24 Integrated Voltage Measurement... 10:49:25 Magnet current ramping to -0.4000 A... 10:49:50 Voltage Offset Correction: v_off_ini = 0.000025584 V, v_off_fin = 0.000001158 V 10:49:50 Integrated Voltage Measurement Imag = -0.4000 A VT = 0.002616411 Vs 10:49:50 Hall Probe Field Measurement, B = -0.005260 T 10:49:51 Calculate delta B and H from the cylinder Ifin = -0.400000 A B_hall_ini = -0.007910 T B_hall_fin = -0.005260 T VT = 2.616411e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 1.453562e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.950412e-08 Tm^2 delta_flux_gap = 5.979866e-08 Tm^2 delta_flux_sample = 1.442631e-05 Tm^2 delta_B = 5.439658e-02 T H_fin = -4.143917e+03 A/m 10:49:51 Measured H and B values: H = -4143.916796 A/m B = -0.388234 T 10:49:51 Hall Probe Field Measurement, B = -0.005260 T 10:49:51 Integrated Voltage Measurement... 10:49:52 Magnet current ramping to -0.2000 A... 10:50:17 Voltage Offset Correction: v_off_ini = 0.000002910 V, v_off_fin = 0.000003400 V 10:50:17 Integrated Voltage Measurement Imag = -0.2000 A VT = 0.004058428 Vs 10:50:17 Hall Probe Field Measurement, B = -0.002670 T 10:50:17 Calculate delta B and H from the cylinder Ifin = -0.200000 A B_hall_ini = -0.005260 T B_hall_fin = -0.002670 T VT = 4.058428e-03 V sec N_turns_coil = 180 delta_flux_1_turn = 2.254682e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.838327e-08 Tm^2 delta_flux_gap = 5.844473e-08 Tm^2 delta_flux_sample = 2.244000e-05 Tm^2 delta_B = 8.461338e-02 T H_fin = -2.103471e+03 A/m 10:50:17 Measured H and B values: H = -2103.471073 A/m B = -0.303620 T 10:50:18 Hall Probe Field Measurement, B = -0.002670 T 10:50:18 Integrated Voltage Measurement... 10:50:19 Magnet current ramping to 0.0000 A... 10:50:44 Voltage Offset Correction: v_off_ini = 0.000005674 V, v_off_fin = -0.000017157 V 10:50:44 Integrated Voltage Measurement Imag = 0.0000 A VT = 0.013554103 Vs 10:50:44 Hall Probe Field Measurement, B = -0.000390 T 10:50:45 Calculate delta B and H from the cylinder Ifin = 0.000000 A B_hall_ini = -0.002670 T B_hall_fin = -0.000390 T VT = 1.355410e-02 V sec N_turns_coil = 180 delta_flux_1_turn = 7.530057e-05 V sec coil_area = 3.069131e-04 m^2 sample_OD_area = 2.838870e-04 m^2 sample_ID_area = 1.868080e-05 m^2 hole_area = 1.868080e-05 m^2 sample_area = 2.652062e-04 m^2 gap_area = 2.302605e-05 m^2 delta_flux_hole = 4.259222e-08 Tm^2 delta_flux_gap = 5.144942e-08 Tm^2 delta_flux_sample = 7.520653e-05 Tm^2 delta_B = 2.835776e-01 T H_fin = -3.072486e+02 A/m 10:50:45 Measured H and B values: H = -307.248584 A/m B = -0.020043 T 10:50:45 Summary of measured B and H values: i H B (A/m) (T) --- ---------- ---------- 0 -323.00 -0.000508 1 291.49 2.028752 2 1741.08 2.686906 3 3710.62 2.816893 4 5782.58 2.889911 5 7823.02 2.942387 6 18017.37 3.111510 7 37184.96 3.272884 8 54950.23 3.327981 9 72045.85 3.358588 10 84926.66 3.378089 11 92915.12 3.389721 12 86100.51 3.379926 13 74283.25 3.362445 14 57187.63 3.333531 15 39367.21 3.285611 16 20317.80 3.142396 17 10186.47 2.997981 18 8146.03 2.957997 19 6058.31 2.910436 20 3986.35 2.851399 21 1938.03 2.761597 22 244.22 2.423934 23 -354.52 0.284337 24 -1898.64 -0.241270 25 -3883.94 -0.361538 26 -5955.90 -0.428331 27 -8004.22 -0.478303 28 -18198.57 -0.647309 29 -37358.28 -0.809103 30 -55123.55 -0.861922 31 -72211.30 -0.890741 32 -85021.20 -0.910595 33 -92970.27 -0.922031 34 -86202.92 -0.912525 35 -74440.82 -0.895036 36 -57353.07 -0.866268 37 -39524.77 -0.819053 38 -20499.00 -0.676178 39 -10359.79 -0.531590 40 -8319.35 -0.492832 41 -6231.63 -0.442630 42 -4143.92 -0.388234 43 -2103.47 -0.303620 44 -307.25 -0.020043 10:50:45 Symmetrized B and H values: i H B (A/m) (T) --- ---------- ---------- 0 -323.00 -1.234353 1 291.49 0.794907 2 1741.08 1.453061 3 3710.62 1.583048 4 5782.58 1.656066 5 7823.02 1.708542 6 18017.37 1.877665 7 37184.96 2.039039 8 54950.23 2.094136 9 72045.85 2.124743 10 84926.66 2.144244 11 92915.12 2.155876 12 86100.51 2.146081 13 74283.25 2.128600 14 57187.63 2.099686 15 39367.21 2.051766 16 20317.80 1.908551 17 10186.47 1.764136 18 8146.03 1.724152 19 6058.31 1.676591 20 3986.35 1.617554 21 1938.03 1.527752 22 244.22 1.190089 23 -354.52 -0.949508 24 -1898.64 -1.475115 25 -3883.94 -1.595383 26 -5955.90 -1.662176 27 -8004.22 -1.712148 28 -18198.57 -1.881154 29 -37358.28 -2.042948 30 -55123.55 -2.095767 31 -72211.30 -2.124586 32 -85021.20 -2.144440 33 -92970.27 -2.155876 34 -86202.92 -2.146370 35 -74440.82 -2.128881 36 -57353.07 -2.100113 37 -39524.77 -2.052897 38 -20499.00 -1.910023 39 -10359.79 -1.765435 40 -8319.35 -1.726677 41 -6231.63 -1.676475 42 -4143.92 -1.622078 43 -2103.47 -1.537465 44 -307.25 -1.253888 10:50:45 Magnet current ramping to 0.0000 A...