SLAC Magnetic Measurements Date: 07-08-2004 Time: 15:39:47 Project: HHCalib Magnet Type: Calibrate Magnet Name: Coil Serial Number: Run Number: 18 Measurement Device: Helmholtz coil Operator: sa Comment: Calibration check before baseline PM blocks 15:39:48 Initial Zero Current Measurement, Imag_zero = 0.0000 A 15:39:49 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 15:40:04 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 15:40:33 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 0.0037535 -0.0000809 0.0037544 -1.2344579 2 0.0000001 0.0000092 0.0000092 89.5563616 3 -0.0000024 0.0000068 0.0000073 109.5314202 4 0.0000002 0.0000053 0.0000053 87.8365790 5 -0.0000007 0.0000047 0.0000047 98.1435112 6 -0.0000008 0.0000050 0.0000051 98.8047371 7 -0.0000007 0.0000052 0.0000053 97.2887739 8 -0.0000015 0.0000046 0.0000048 108.2642347 9 -0.0000028 0.0000080 0.0000085 109.0776324 10 -0.0000094 0.0000285 0.0000300 108.2657113 15:40:50 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 0.0037517 0.0000756 0.0037525 1.1542396 2 -0.0000049 0.0000046 0.0000067 136.4885435 3 -0.0000026 0.0000032 0.0000041 128.5251435 4 -0.0000012 0.0000025 0.0000028 115.6457906 5 -0.0000021 0.0000019 0.0000028 136.9999022 6 -0.0000025 0.0000012 0.0000028 153.1213499 7 -0.0000031 0.0000023 0.0000039 144.2914891 8 -0.0000029 0.0000027 0.0000039 137.2062733 9 -0.0000062 0.0000034 0.0000071 151.1283735 10 -0.0000260 0.0000129 0.0000290 153.5651193 15:41:06 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 0.0037554 -0.0001106 0.0037571 -1.6862335 2 0.0000026 -0.0000064 0.0000069 -67.9086598 3 0.0000001 -0.0000043 0.0000043 -88.2538987 4 0.0000024 -0.0000034 0.0000041 -54.5487527 5 0.0000019 -0.0000028 0.0000034 -55.3974430 6 0.0000017 -0.0000025 0.0000030 -56.0963863 7 0.0000027 -0.0000028 0.0000039 -45.1382839 8 0.0000035 -0.0000025 0.0000044 -35.7883759 9 0.0000060 -0.0000048 0.0000077 -39.0745347 10 0.0000239 -0.0000171 0.0000294 -35.5413683 15:41:23 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 0.0037550 0.0000726 0.0037557 1.1072322 2 -0.0000019 0.0000030 0.0000035 122.1439723 3 0.0000009 0.0000022 0.0000024 66.4142712 4 0.0000026 0.0000017 0.0000031 32.5584442 5 0.0000024 0.0000015 0.0000028 32.6232500 6 0.0000025 0.0000006 0.0000025 13.5090516 7 0.0000032 0.0000019 0.0000037 31.2073952 8 0.0000035 0.0000009 0.0000036 14.7433810 9 0.0000070 0.0000021 0.0000073 16.8489897 10 0.0000280 0.0000089 0.0000294 17.5543861 15:41:23 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 0.0037539 0.0000013 -0.0000108 0.0000082 2 -0.0000010 0.0000014 0.0000026 0.0000043 3 -0.0000010 0.0000015 0.0000020 0.0000031 4 0.0000010 0.0000015 0.0000015 0.0000024 5 0.0000004 0.0000018 0.0000013 0.0000020 6 0.0000002 0.0000018 0.0000011 0.0000020 7 0.0000005 0.0000024 0.0000017 0.0000021 8 0.0000007 0.0000028 0.0000014 0.0000022 9 0.0000010 0.0000055 0.0000022 0.0000035 10 0.0000042 0.0000218 0.0000083 0.0000124 15:41:23 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 = 3.753935e-03 Vs vthar_im_ave = -1.081860e-05 Vs mm_re_ave = 8.500119e-07 Tm^3 mm_im_ave = -2.449681e-09 Tm^3 15:41:23 Magnetic Moment Measurement M = 8.500154e-07 +- 2.965395e-10 Tm^3 Theta = 0.165122 +- 0.124726 deg 15:41:25 Temperature Measurement, Probe Number = 0, T = 20.565832 C 15:41:27 Temperature Measurement, Probe Number = 1, T = 20.408783 C 15:41:29 Magnet Current, Imag = 6.0214 A Vtrans = 1.505357 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:41:30 Magnet Current, Imag = 6.0214 A Vtrans = 1.505351 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:41:31 Magnet Current, Imag = 6.0214 A Vtrans = 1.505340 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:41:32 Magnet Current, Imag = 6.0213 A Vtrans = 1.505333 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:41:32 Magnet Current Measurement: Imag = 6.0214 +- 0.0000 A 15:41:33 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.021381 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.464100e-07 Tm^3