SLAC Magnetic Measurements Date: 10-18-2001 Time: 14:55:03 Project: nlc Magnet Type: PMblock Magnet Name: 0774 Serial Number: Run Number: 14 Measurement Device: Helmholtz coil Operator: zw Comment: repeat calib 14:55:05 Initial Zero Current Measurement, Imag_zero = 0.0000 A 14:55:06 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 14:55:24 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 14:55:53 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 0.0037408 -0.0000897 0.0037419 -1.3739891 2 0.0000041 -0.0000104 0.0000112 -68.5402694 3 -0.0000018 -0.0000080 0.0000082 -102.3239428 4 0.0000482 -0.0000021 0.0000482 -2.4507889 5 0.0000028 -0.0000013 0.0000031 -24.4005647 6 -0.0000000 -0.0000035 0.0000035 -90.7915574 7 0.0000009 -0.0000073 0.0000074 -82.7074745 8 0.0000019 -0.0000021 0.0000029 -48.1776262 9 -0.0000010 0.0000028 0.0000030 109.2003072 10 -0.0000004 -0.0000028 0.0000028 -98.6548441 14:56:09 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 0.0037415 0.0000394 0.0037417 0.6038208 2 -0.0000009 -0.0000055 0.0000055 -99.0323418 3 0.0000070 -0.0000088 0.0000113 -51.5469631 4 0.0000313 -0.0000411 0.0000517 -52.6803208 5 -0.0000064 0.0000025 0.0000069 158.8506123 6 0.0000007 -0.0000012 0.0000014 -61.3592126 7 0.0000015 0.0000036 0.0000039 67.6055346 8 -0.0000015 0.0000016 0.0000022 132.2638882 9 0.0000001 -0.0000067 0.0000067 -88.7569831 10 0.0000013 -0.0000011 0.0000017 -40.2940104 14:56:25 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 0.0037390 -0.0000619 0.0037395 -0.9482721 2 0.0000029 0.0000041 0.0000050 54.2512484 3 -0.0000043 0.0000016 0.0000046 160.2361304 4 0.0000089 0.0000520 0.0000528 80.2383196 5 0.0000024 0.0000026 0.0000035 47.6566896 6 -0.0000004 0.0000016 0.0000017 105.2388051 7 -0.0000006 -0.0000036 0.0000036 -100.1917167 8 -0.0000022 0.0000012 0.0000025 152.4839121 9 -0.0000014 0.0000067 0.0000068 101.4981912 10 -0.0000009 0.0000013 0.0000016 125.2268974 14:56:41 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 0.0037413 0.0000674 0.0037419 1.0323094 2 -0.0000040 0.0000085 0.0000094 115.1563051 3 0.0000063 0.0000030 0.0000070 25.4379039 4 -0.0000304 0.0000403 0.0000505 127.0922079 5 -0.0000043 0.0000062 0.0000076 124.9757168 6 0.0000004 0.0000018 0.0000019 77.2517421 7 0.0000018 0.0000075 0.0000077 76.8015977 8 0.0000023 -0.0000019 0.0000030 -39.3086733 9 -0.0000008 -0.0000032 0.0000033 -104.0950385 10 0.0000010 0.0000023 0.0000025 66.8778781 14:56:42 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 0.0037407 0.0000005 -0.0000112 0.0000140 2 0.0000005 0.0000011 -0.0000008 0.0000071 3 0.0000018 0.0000008 -0.0000031 0.0000054 4 0.0000145 0.0000252 0.0000123 0.0000339 5 -0.0000014 0.0000004 0.0000025 0.0000019 6 0.0000001 0.0000002 -0.0000003 0.0000021 7 0.0000009 0.0000003 0.0000000 0.0000019 8 0.0000001 0.0000001 -0.0000003 0.0000000 9 -0.0000008 0.0000003 -0.0000001 0.0000018 10 0.0000002 0.0000002 -0.0000001 0.0000019 14:56:42 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 = 3.740665e-03 Vs vthar_im_ave = -1.119141e-05 Vs mm_re_ave = 8.470070e-07 Tm^3 mm_im_ave = -2.534095e-09 Tm^3 14:56:42 Magnetic Moment Measurement M = 8.470108e-07 +- 1.090081e-10 Tm^3 Theta = 0.171418 +- 0.213748 deg 14:56:44 Temperature Measurement, Probe Number = 0, T = 21.150172 C 14:56:46 Temperature Measurement, Probe Number = 1, T = 20.763834 C 14:56:48 Magnet Current, Imag = 6.0038 A Vtrans = 1.500959 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 14:56:50 Magnet Current, Imag = 6.0038 A Vtrans = 1.500960 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 14:56:51 Magnet Current, Imag = 6.0038 A Vtrans = 1.500962 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 14:56:52 Magnet Current, Imag = 6.0038 A Vtrans = 1.500962 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 14:56:53 Magnet Current Measurement: Imag = 6.0038 +- 0.0000 A 14:56:53 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.003843 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.439447e-07 Tm^3