SLAC Magnetic Measurements Date: 03-29-2004 Time: 10:18:33 Project: HHCalib Magnet Type: Calibrate Magnet Name: Coil_test Serial Number: Run Number: 16 Measurement Device: Helmholtz coil Operator: sa Comment: fixit 10:18:35 Initial Zero Current Measurement, Imag_zero = 0.0000 A 10:18:36 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 10:18:49 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 10:19:18 VT Harmonics Measurement rot_dir = +, num_rev = 8 i vthar_re[i] vthar_im[i] vthar_mag[i] vthar_ph[i] (Vs) (Vs) (Vs) (deg) --- ------------ ------------ ------------ ------------ 1 0.0034349 0.0015078 0.0037513 23.6992152 2 0.0000037 -0.0000063 0.0000073 -59.4688089 3 0.0000003 -0.0000028 0.0000028 -83.5321882 4 0.0000319 0.0000072 0.0000327 12.7555954 5 0.0000004 -0.0000027 0.0000027 -81.6108428 6 -0.0000005 -0.0000017 0.0000017 -105.1705881 7 -0.0000042 -0.0000031 0.0000052 -143.1260784 8 0.0000000 -0.0000010 0.0000010 -89.9522054 9 0.0000020 0.0000030 0.0000036 56.4943287 10 -0.0000003 -0.0000018 0.0000018 -100.0570752 10:19:34 VT Harmonics Measurement rot_dir = -, num_rev = 8 i vthar_re[i] vthar_im[i] vthar_mag[i] vthar_ph[i] (Vs) (Vs) (Vs) (deg) --- ------------ ------------ ------------ ------------ 1 0.0033809 0.0016374 0.0037565 25.8405482 2 -0.0000002 0.0000047 0.0000047 93.0177069 3 0.0000003 0.0000035 0.0000035 85.5392780 4 -0.0000069 0.0000367 0.0000373 100.5890718 5 -0.0000010 0.0000018 0.0000021 119.6786095 6 -0.0000005 0.0000013 0.0000014 110.5842252 7 0.0000045 0.0000032 0.0000055 35.3867216 8 0.0000006 0.0000018 0.0000019 72.3563052 9 -0.0000019 -0.0000033 0.0000038 -119.4939619 10 -0.0000008 0.0000013 0.0000015 119.3172306 10:19:49 VT Harmonics Measurement rot_dir = +, num_rev = 8 i vthar_re[i] vthar_im[i] vthar_mag[i] vthar_ph[i] (Vs) (Vs) (Vs) (deg) --- ------------ ------------ ------------ ------------ 1 0.0034422 0.0015108 0.0037591 23.6968168 2 0.0000003 -0.0000042 0.0000042 -85.3790175 3 -0.0000002 -0.0000015 0.0000016 -97.3534199 4 -0.0000180 0.0000234 0.0000295 127.6584964 5 0.0000019 -0.0000010 0.0000022 -27.7172511 6 0.0000008 -0.0000016 0.0000018 -61.6857190 7 -0.0000037 -0.0000032 0.0000049 -139.5439691 8 0.0000012 0.0000011 0.0000017 41.9077461 9 0.0000027 0.0000032 0.0000042 50.2186293 10 0.0000006 -0.0000015 0.0000016 -67.0115564 10:20:05 VT Harmonics Measurement rot_dir = -, num_rev = 8 i vthar_re[i] vthar_im[i] vthar_mag[i] vthar_ph[i] (Vs) (Vs) (Vs) (deg) --- ------------ ------------ ------------ ------------ 1 0.0033827 0.0016311 0.0037554 25.7427625 2 -0.0000005 0.0000015 0.0000016 106.8671651 3 0.0000014 0.0000019 0.0000023 53.7593154 4 0.0000126 0.0000317 0.0000341 68.3882208 5 -0.0000007 0.0000008 0.0000010 130.6726679 6 0.0000009 0.0000002 0.0000009 13.3877473 7 0.0000056 0.0000018 0.0000059 17.5853929 8 0.0000011 -0.0000003 0.0000011 -17.9944547 9 -0.0000012 -0.0000037 0.0000039 -107.6226452 10 0.0000008 0.0000004 0.0000009 25.4715287 10:20:05 Integrated Voltage Harmonics, Average and RMS of Measurements n vthar_re[i] svthar_re[i] vthar_im[i] svthar_im[i] (Vs) (Vs) (Vs) (Vs) --- ------------ ------------ ------------ ------------ 1 0.0034102 0.0000023 0.0015717 0.0000008 2 0.0000008 0.0000009 -0.0000011 0.0000003 3 0.0000004 0.0000001 0.0000003 0.0000001 4 0.0000049 0.0000076 0.0000247 0.0000028 5 0.0000002 0.0000005 -0.0000003 0.0000002 6 0.0000002 0.0000007 -0.0000004 0.0000003 7 0.0000005 0.0000004 -0.0000003 0.0000004 8 0.0000007 0.0000004 0.0000004 0.0000000 9 0.0000004 0.0000003 -0.0000002 0.0000001 10 0.0000001 0.0000006 -0.0000004 0.0000002 10:20:05 Magnetic Moment Calculation Helmholtz Coil Radius, R = 0.493357 m Helmholtz Coil Number Of Turns, N = 3045 Geometry Factor, G = 1.397540 m vthar_re_ave = 3.410176e-03 Vs vthar_im_ave = 1.571748e-03 Vs mm_re_ave = 7.721738e-07 Tm^3 mm_im_ave = 3.558944e-07 Tm^3 10:20:05 Magnetic Moment Measurement M = 8.502431e-07 +- 4.706841e-10 Tm^3 Theta = -24.744946 +- 0.018292 deg 10:20:07 Temperature Measurement, Probe Number = 0, T = 21.009967 C 10:20:09 Temperature Measurement, Probe Number = 1, T = 20.594361 C 10:20:10 Magnet Current, Imag = 6.0220 A Vtrans = 1.505505 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 10:20:12 Magnet Current, Imag = 6.0220 A Vtrans = 1.505506 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 10:20:13 Magnet Current, Imag = 6.0220 A Vtrans = 1.505504 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 10:20:14 Magnet Current, Imag = 6.0220 A Vtrans = 1.505505 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 10:20:14 Magnet Current Measurement: Imag = 6.0220 +- 0.0000 A 10:20:14 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.022020 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.464998e-07 Tm^3