SLAC Magnetic Measurements Date: 07-08-2004 Time: 16:40:35 Project: HHCalib Magnet Type: Calibrate Magnet Name: Coil Serial Number: Run Number: 19 Measurement Device: Helmholtz coil Operator: sa Comment: Calibration check after baseline PM blocks 16:40:36 Initial Zero Current Measurement, Imag_zero = 0.0000 A 16:40:37 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 16:40:49 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 16:41:18 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 0.0037558 -0.0000878 0.0037568 -1.3395597 2 0.0000025 0.0000071 0.0000075 70.2681520 3 0.0000001 0.0000057 0.0000057 88.9839061 4 0.0000014 0.0000039 0.0000042 70.5819420 5 0.0000011 0.0000035 0.0000036 71.7398242 6 0.0000014 0.0000035 0.0000038 68.5846570 7 0.0000023 0.0000039 0.0000046 59.0420154 8 0.0000015 0.0000053 0.0000055 74.7395882 9 0.0000034 0.0000071 0.0000079 64.5777894 10 0.0000150 0.0000247 0.0000289 58.6586537 16:41:35 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 0.0037537 0.0000862 0.0037547 1.3153079 2 -0.0000029 0.0000095 0.0000099 107.2603523 3 -0.0000007 0.0000066 0.0000067 95.7044470 4 -0.0000003 0.0000052 0.0000052 92.8501409 5 -0.0000004 0.0000047 0.0000047 94.5782713 6 -0.0000006 0.0000046 0.0000046 97.8104560 7 -0.0000011 0.0000047 0.0000048 102.9837666 8 0.0000004 0.0000064 0.0000064 86.1943228 9 -0.0000010 0.0000083 0.0000083 96.8610127 10 -0.0000048 0.0000297 0.0000301 99.2154989 16:41:51 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 0.0037535 -0.0001186 0.0037553 -1.8095553 2 0.0000009 -0.0000091 0.0000092 -84.1627501 3 -0.0000017 -0.0000059 0.0000061 -105.9023693 4 -0.0000007 -0.0000053 0.0000053 -97.5066883 5 -0.0000010 -0.0000043 0.0000044 -102.9956871 6 -0.0000005 -0.0000038 0.0000038 -97.4602084 7 -0.0000014 -0.0000038 0.0000041 -109.4782964 8 -0.0000005 -0.0000057 0.0000058 -95.0002654 9 -0.0000025 -0.0000083 0.0000087 -106.9944437 10 -0.0000096 -0.0000274 0.0000291 -109.3310354 16:42:08 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 0.0037538 0.0000868 0.0037548 1.3247656 2 -0.0000024 0.0000097 0.0000100 103.6419028 3 -0.0000000 0.0000067 0.0000067 90.2573271 4 0.0000002 0.0000053 0.0000053 87.3340230 5 0.0000005 0.0000048 0.0000048 83.6301604 6 0.0000001 0.0000049 0.0000049 88.8255770 7 -0.0000000 0.0000049 0.0000049 90.4023720 8 0.0000021 0.0000059 0.0000062 70.1186113 9 0.0000019 0.0000080 0.0000082 76.7807112 10 0.0000061 0.0000287 0.0000294 78.0050969 16:42:08 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 0.0037542 0.0000005 -0.0000084 0.0000075 2 -0.0000005 0.0000003 0.0000043 0.0000040 3 -0.0000006 0.0000003 0.0000033 0.0000029 4 0.0000002 0.0000004 0.0000023 0.0000023 5 0.0000001 0.0000003 0.0000022 0.0000019 6 0.0000001 0.0000003 0.0000023 0.0000018 7 -0.0000000 0.0000007 0.0000024 0.0000019 8 0.0000009 0.0000001 0.0000030 0.0000029 9 0.0000004 0.0000008 0.0000038 0.0000039 10 0.0000017 0.0000034 0.0000139 0.0000133 16:42:08 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 = 3.754195e-03 Vs vthar_im_ave = -8.353606e-06 Vs mm_re_ave = 8.500707e-07 Tm^3 mm_im_ave = -1.891526e-09 Tm^3 16:42:08 Magnetic Moment Measurement M = 8.500728e-07 +- 1.238054e-10 Tm^3 Theta = 0.127491 +- 0.114975 deg 16:42:10 Temperature Measurement, Probe Number = 0, T = 20.694994 C 16:42:12 Temperature Measurement, Probe Number = 1, T = 20.386853 C 16:42:13 Magnet Current, Imag = 6.0217 A Vtrans = 1.505434 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 16:42:15 Magnet Current, Imag = 6.0217 A Vtrans = 1.505423 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 16:42:16 Magnet Current, Imag = 6.0217 A Vtrans = 1.505417 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 16:42:17 Magnet Current, Imag = 6.0216 A Vtrans = 1.505407 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 16:42:17 Magnet Current Measurement: Imag = 6.0217 +- 0.0000 A 16:42:17 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.021681 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.464521e-07 Tm^3