SLAC Magnetic Measurements Date: 07-08-2004 Time: 16:42:35 Project: HHCalib Magnet Type: Calibrate Magnet Name: Coil Serial Number: Run Number: 20 Measurement Device: Helmholtz coil Operator: sa Comment: Calibration check after baseline PM blocks 16:42:37 Initial Zero Current Measurement, Imag_zero = 0.0000 A 16:42:37 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 16:42:48 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 16:43:17 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 0.0037519 -0.0000951 0.0037531 -1.4515272 2 -0.0000002 0.0000028 0.0000028 93.5048904 3 -0.0000026 0.0000026 0.0000037 135.5243346 4 -0.0000017 0.0000015 0.0000022 139.5557846 5 -0.0000020 0.0000015 0.0000025 141.9920807 6 -0.0000021 0.0000015 0.0000026 143.4802995 7 -0.0000028 0.0000021 0.0000035 142.9722160 8 -0.0000047 0.0000005 0.0000047 174.1593319 9 -0.0000077 0.0000017 0.0000079 167.4857288 10 -0.0000284 0.0000068 0.0000292 166.5891512 16:43:33 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 0.0037520 0.0000835 0.0037529 1.2742112 2 -0.0000037 0.0000081 0.0000089 114.5466844 3 -0.0000016 0.0000055 0.0000057 105.8021554 4 -0.0000013 0.0000043 0.0000045 106.4156707 5 -0.0000013 0.0000040 0.0000042 108.5563038 6 -0.0000021 0.0000035 0.0000041 120.6004216 7 -0.0000024 0.0000036 0.0000043 123.3196584 8 -0.0000020 0.0000057 0.0000061 108.8071328 9 -0.0000043 0.0000068 0.0000080 122.6861024 10 -0.0000181 0.0000233 0.0000295 127.7967708 16:43:50 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 0.0037545 -0.0001159 0.0037562 -1.7675530 2 0.0000025 -0.0000080 0.0000084 -72.6503675 3 0.0000000 -0.0000050 0.0000050 -89.9846865 4 0.0000011 -0.0000047 0.0000049 -76.3451165 5 0.0000008 -0.0000038 0.0000038 -78.2920912 6 0.0000015 -0.0000036 0.0000039 -67.2593086 7 0.0000017 -0.0000038 0.0000042 -65.7645172 8 0.0000033 -0.0000039 0.0000051 -49.0695998 9 0.0000041 -0.0000070 0.0000081 -59.3793705 10 0.0000161 -0.0000238 0.0000287 -55.9733032 16:44:06 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 0.0037547 0.0000735 0.0037555 1.1217440 2 -0.0000009 0.0000030 0.0000031 106.2151955 3 0.0000016 0.0000020 0.0000026 50.7218982 4 0.0000020 0.0000014 0.0000024 34.7221567 5 0.0000023 0.0000010 0.0000026 24.2222659 6 0.0000022 0.0000005 0.0000022 11.8517183 7 0.0000028 0.0000016 0.0000032 29.4803339 8 0.0000048 -0.0000002 0.0000048 -2.2946900 9 0.0000073 0.0000007 0.0000073 5.0891846 10 0.0000284 0.0000033 0.0000286 6.6573469 16:44:07 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 0.0037533 0.0000013 -0.0000135 0.0000077 2 -0.0000006 0.0000014 0.0000015 0.0000040 3 -0.0000006 0.0000015 0.0000013 0.0000028 4 0.0000000 0.0000015 0.0000006 0.0000023 5 -0.0000001 0.0000016 0.0000007 0.0000021 6 -0.0000001 0.0000020 0.0000005 0.0000020 7 -0.0000002 0.0000024 0.0000009 0.0000020 8 0.0000004 0.0000037 0.0000005 0.0000026 9 -0.0000002 0.0000059 0.0000005 0.0000037 10 -0.0000005 0.0000227 0.0000024 0.0000126 16:44:07 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 = 3.753277e-03 Vs vthar_im_ave = -1.348893e-05 Vs mm_re_ave = 8.498630e-07 Tm^3 mm_im_ave = -3.054328e-09 Tm^3 16:44:07 Magnetic Moment Measurement M = 8.498684e-07 +- 2.982141e-10 Tm^3 Theta = 0.205915 +- 0.117255 deg 16:44:09 Temperature Measurement, Probe Number = 0, T = 20.687486 C 16:44:11 Temperature Measurement, Probe Number = 1, T = 20.385916 C 16:44:12 Magnet Current, Imag = 6.0210 A Vtrans = 1.505245 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 16:44:13 Magnet Current, Imag = 6.0210 A Vtrans = 1.505246 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 16:44:15 Magnet Current, Imag = 6.0210 A Vtrans = 1.505240 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 16:44:16 Magnet Current, Imag = 6.0210 A Vtrans = 1.505239 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 16:44:16 Magnet Current Measurement: Imag = 6.0210 +- 0.0000 A 16:44:16 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.020970 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.463522e-07 Tm^3