SLAC Magnetic Measurements Date: 03-26-2004 Time: 13:35:21 Project: HHCalib Magnet Type: Calibrate Magnet Name: Coil Serial Number: Run Number: 11 Measurement Device: Helmholtz coil Operator: sa Comment: Encoder closae to zero 13:35:23 Initial Zero Current Measurement, Imag_zero = 0.0000 A 13:35:24 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 13:35:40 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 13:36:08 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 0.0036448 -0.0008762 0.0037486 -13.5180763 2 -0.0000013 -0.0000072 0.0000074 -100.2076350 3 0.0000049 -0.0000018 0.0000052 -20.1150509 4 0.0000088 -0.0000383 0.0000393 -77.0181245 5 -0.0000072 0.0000005 0.0000073 175.9945598 6 0.0000015 -0.0000003 0.0000015 -11.6028549 7 -0.0000030 -0.0000061 0.0000068 -116.1203281 8 -0.0000008 0.0000010 0.0000013 126.7508109 9 0.0000041 0.0000008 0.0000042 10.9024401 10 0.0000013 0.0000003 0.0000013 12.8462070 13:36:24 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 0.0036692 -0.0007465 0.0037444 -11.5003594 2 0.0000029 -0.0000019 0.0000035 -32.6807939 3 -0.0000026 -0.0000041 0.0000049 -122.8458124 4 0.0000142 0.0000350 0.0000378 67.9788562 5 0.0000019 0.0000006 0.0000020 17.4672945 6 0.0000010 -0.0000012 0.0000015 -50.4125312 7 0.0000013 0.0000028 0.0000030 65.3141295 8 0.0000006 0.0000011 0.0000013 61.0460951 9 -0.0000045 -0.0000040 0.0000061 -138.6569054 10 -0.0000000 -0.0000001 0.0000001 -91.3581626 13:36:40 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 0.0036437 -0.0008655 0.0037451 -13.3621889 2 -0.0000030 -0.0000025 0.0000039 -139.8102668 3 0.0000038 0.0000016 0.0000041 22.7317737 4 -0.0000118 -0.0000335 0.0000356 -109.3602782 5 -0.0000075 0.0000038 0.0000084 153.3011588 6 0.0000009 0.0000013 0.0000016 54.5364615 7 -0.0000037 -0.0000040 0.0000055 -133.1258985 8 -0.0000008 0.0000021 0.0000022 110.0752634 9 0.0000030 0.0000029 0.0000042 44.2644075 10 -0.0000003 0.0000014 0.0000015 100.4873073 13:36:56 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 0.0036707 -0.0007509 0.0037468 -11.5612668 2 0.0000039 -0.0000042 0.0000057 -47.6390927 3 -0.0000015 -0.0000056 0.0000058 -105.1177173 4 0.0000344 -0.0000016 0.0000345 -2.5948421 5 0.0000030 0.0000002 0.0000030 4.0651008 6 0.0000010 -0.0000016 0.0000019 -57.6096706 7 0.0000021 0.0000033 0.0000039 57.4529872 8 0.0000023 -0.0000000 0.0000023 -0.3037843 9 -0.0000036 -0.0000042 0.0000056 -130.9425836 10 0.0000008 -0.0000003 0.0000009 -17.3677832 13:36:56 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 0.0036571 0.0000001 -0.0008098 0.0000016 2 0.0000006 0.0000002 -0.0000040 0.0000006 3 0.0000011 0.0000000 -0.0000025 0.0000004 4 0.0000114 0.0000001 -0.0000096 0.0000079 5 -0.0000025 0.0000002 0.0000013 0.0000007 6 0.0000011 0.0000001 -0.0000004 0.0000003 7 -0.0000008 0.0000000 -0.0000010 0.0000007 8 0.0000003 0.0000004 0.0000011 0.0000000 9 -0.0000003 0.0000001 -0.0000011 0.0000005 10 0.0000005 0.0000002 0.0000003 0.0000002 13:36:56 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 = 3.657093e-03 Vs vthar_im_ave = -8.097978e-04 Vs mm_re_ave = 8.280838e-07 Tm^3 mm_im_ave = -1.833643e-07 Tm^3 13:36:56 Magnetic Moment Measurement M = 8.481422e-07 +- 8.191397e-11 Tm^3 Theta = 12.485660 +- 0.023756 deg 13:36:58 Temperature Measurement, Probe Number = 0, T = 20.222476 C 13:37:00 Temperature Measurement, Probe Number = 1, T = 19.877355 C 13:37:01 Magnet Current, Imag = 6.0221 A Vtrans = 1.505515 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 13:37:02 Magnet Current, Imag = 6.0221 A Vtrans = 1.505531 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 13:37:04 Magnet Current, Imag = 6.0221 A Vtrans = 1.505517 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 13:37:05 Magnet Current, Imag = 6.0221 A Vtrans = 1.505531 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 13:37:05 Magnet Current Measurement: Imag = 6.0221 +- 0.0000 A 13:37:05 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.022094 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.465102e-07 Tm^3