SLAC Magnetic Measurements Date: 08-24-2004 Time: 13:16:18 Project: HHCalib Magnet Type: Calibrate Magnet Name: Coil_Davis4 Serial Number: Run Number: 15 Measurement Device: Helmholtz coil Operator: sa Comment: PM holder only 13:16:19 Initial Zero Current Measurement, Imag_zero = 0.0000 A 13:16:20 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 13:16:31 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 13:17:01 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 0.0000011 -0.0000007 0.0000013 -31.7178245 2 0.0000025 -0.0000008 0.0000027 -16.4479010 3 0.0000002 -0.0000002 0.0000003 -49.0139655 4 0.0000002 0.0000002 0.0000003 34.7432824 5 0.0000003 0.0000002 0.0000003 35.4190243 6 0.0000002 0.0000005 0.0000005 63.3152380 7 0.0000002 0.0000003 0.0000004 48.0309733 8 0.0000004 -0.0000003 0.0000005 -39.5966332 9 0.0000007 0.0000008 0.0000011 50.7155081 10 -0.0000001 0.0000003 0.0000004 107.8528129 13:17:18 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 0.0000016 -0.0000005 0.0000017 -17.0488845 2 -0.0000016 0.0000011 0.0000020 145.9370555 3 0.0000009 0.0000002 0.0000009 10.7004073 4 0.0000009 0.0000004 0.0000010 20.8888567 5 0.0000008 0.0000004 0.0000009 27.3959957 6 0.0000009 0.0000007 0.0000011 38.4073670 7 0.0000010 0.0000008 0.0000013 37.3496153 8 0.0000008 0.0000015 0.0000017 63.6979181 9 0.0000010 0.0000006 0.0000012 32.7329471 10 0.0000018 0.0000015 0.0000023 40.7007371 13:17:34 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 0.0000009 -0.0000005 0.0000011 -28.7640524 2 0.0000023 -0.0000006 0.0000024 -15.2114493 3 0.0000002 -0.0000001 0.0000002 -20.8374948 4 0.0000001 0.0000001 0.0000001 30.0311448 5 0.0000002 0.0000003 0.0000003 52.3347975 6 0.0000003 0.0000005 0.0000005 58.3758534 7 0.0000002 0.0000003 0.0000004 65.3277641 8 -0.0000001 -0.0000005 0.0000005 -103.9642754 9 0.0000004 0.0000010 0.0000011 68.8279433 10 0.0000000 0.0000004 0.0000004 84.6854031 13:17:51 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 0.0000002 -0.0000006 0.0000006 -70.6676252 2 -0.0000028 0.0000009 0.0000030 161.8502275 3 -0.0000008 0.0000002 0.0000008 167.6199668 4 -0.0000009 -0.0000002 0.0000009 -166.9822702 5 -0.0000007 -0.0000003 0.0000008 -155.9975308 6 -0.0000007 -0.0000003 0.0000007 -157.6109010 7 -0.0000010 -0.0000002 0.0000010 -167.9730383 8 -0.0000012 0.0000006 0.0000014 152.8310907 9 -0.0000007 -0.0000010 0.0000012 -124.3717625 10 -0.0000008 -0.0000010 0.0000013 -131.2055622 13:17:51 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 0.0000010 0.0000004 -0.0000006 0.0000000 2 0.0000001 0.0000004 0.0000002 0.0000000 3 0.0000001 0.0000004 0.0000000 0.0000000 4 0.0000001 0.0000005 0.0000001 0.0000002 5 0.0000001 0.0000004 0.0000001 0.0000002 6 0.0000002 0.0000004 0.0000003 0.0000002 7 0.0000001 0.0000005 0.0000003 0.0000002 8 -0.0000000 0.0000006 0.0000003 0.0000003 9 0.0000003 0.0000005 0.0000004 0.0000004 10 0.0000002 0.0000006 0.0000003 0.0000006 13:17:51 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 = 9.713359e-07 Vs vthar_im_ave = -5.652084e-07 Vs mm_re_ave = 2.199418e-10 Tm^3 mm_im_ave = -1.279814e-10 Tm^3 13:17:51 Magnetic Moment Measurement M = 2.544673e-10 +- 7.918372e-11 Tm^3 Theta = 30.194598 +- 10.456507 deg 13:17:53 Temperature Measurement, Probe Number = 0, T = 20.987733 C 13:17:55 Temperature Measurement, Probe Number = 1, T = 20.664305 C 13:17:57 Magnet Current, Imag = -0.0001 A Vtrans = -0.000047 V, Factor V/A = 0.500000 V/A, Zero Current = 0.000000 A 13:17:59 Magnet Current, Imag = -0.0001 A Vtrans = -0.000047 V, Factor V/A = 0.500000 V/A, Zero Current = 0.000000 A 13:18:01 Magnet Current, Imag = -0.0001 A Vtrans = -0.000047 V, Factor V/A = 0.500000 V/A, Zero Current = 0.000000 A 13:18:02 Magnet Current, Imag = -0.0001 A Vtrans = -0.000048 V, Factor V/A = 0.500000 V/A, Zero Current = 0.000000 A 13:18:02 Magnet Current Measurement: Imag = -0.0001 +- 0.0000 A 13:18:02 Calibration Coil Magnetic Moment Measurement Coil current, I = -0.000094 +/- 0.000001 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = -1.322599e-11 Tm^3