SLAC Magnetic Measurements Date: 10-19-2001 Time: 15:21:12 Project: nlc Magnet Type: PMblock Magnet Name: 0774 Serial Number: Run Number: 18 Measurement Device: Helmholtz coil Operator: zw Comment: 15:21:15 Initial Zero Current Measurement, Imag_zero = 0.0000 A 15:21:15 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 15:21:35 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 15:22:05 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 0.0037400 -0.0000153 0.0037401 -0.2340247 2 0.0000056 0.0000063 0.0000084 48.4414657 3 0.0000025 0.0000040 0.0000047 57.4843326 4 0.0000386 0.0000883 0.0000963 66.3751457 5 -0.0000013 0.0000040 0.0000042 107.6595228 6 0.0000026 0.0000019 0.0000032 35.7310767 7 0.0000004 -0.0000033 0.0000033 -83.1014598 8 -0.0000007 0.0000034 0.0000035 101.3401918 9 0.0000006 0.0000067 0.0000067 84.5201485 10 0.0000010 0.0000012 0.0000015 51.3514514 15:22:21 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 0.0037427 0.0000175 0.0037427 0.2676162 2 -0.0000041 0.0000077 0.0000088 117.9682870 3 0.0000041 -0.0000011 0.0000043 -14.8769849 4 0.0000837 0.0000314 0.0000894 20.5959208 5 -0.0000028 0.0000043 0.0000051 123.2314245 6 -0.0000014 0.0000040 0.0000043 109.2988986 7 0.0000020 0.0000061 0.0000064 71.3286295 8 -0.0000043 0.0000101 0.0000109 112.9055931 9 -0.0000030 -0.0000041 0.0000050 -125.9423001 10 0.0000011 0.0000025 0.0000027 66.1729562 15:22:37 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 0.0037382 -0.0000369 0.0037384 -0.5658734 2 0.0000019 -0.0000032 0.0000037 -60.1270761 3 -0.0000006 -0.0000067 0.0000067 -95.0369732 4 -0.0000865 0.0000185 0.0000885 167.9297189 5 -0.0000017 0.0000008 0.0000019 155.9105154 6 -0.0000006 0.0000002 0.0000007 163.3409465 7 -0.0000002 -0.0000069 0.0000069 -91.8479723 8 0.0000007 -0.0000052 0.0000052 -81.9146723 9 -0.0000002 0.0000029 0.0000029 93.2310904 10 -0.0000008 -0.0000017 0.0000019 -114.8468654 15:22:53 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 0.0037392 0.0000022 0.0037392 0.0332791 2 -0.0000028 -0.0000036 0.0000045 -127.7519630 3 0.0000004 -0.0000048 0.0000048 -84.7364417 4 -0.0000825 -0.0000085 0.0000829 -174.1101790 5 0.0000002 0.0000071 0.0000071 88.2969496 6 0.0000018 -0.0000026 0.0000032 -56.2407304 7 0.0000020 0.0000060 0.0000063 71.4083118 8 0.0000011 -0.0000109 0.0000110 -84.4420432 9 0.0000005 -0.0000040 0.0000041 -83.5331048 10 0.0000014 -0.0000014 0.0000020 -45.5848216 15:22:53 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 0.0037400 0.0000013 -0.0000081 0.0000092 2 0.0000001 0.0000006 0.0000018 0.0000052 3 0.0000016 0.0000017 -0.0000021 0.0000036 4 -0.0000117 0.0000728 0.0000324 0.0000274 5 -0.0000014 0.0000007 0.0000041 0.0000001 6 0.0000006 0.0000000 0.0000009 0.0000021 7 0.0000011 0.0000002 0.0000005 0.0000009 8 -0.0000008 0.0000017 -0.0000006 0.0000074 9 -0.0000005 0.0000007 0.0000004 0.0000009 10 0.0000007 0.0000004 0.0000001 0.0000017 15:22:53 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 = 3.740045e-03 Vs vthar_im_ave = -8.136095e-06 Vs mm_re_ave = 8.468667e-07 Tm^3 mm_im_ave = -1.842274e-09 Tm^3 15:22:53 Magnetic Moment Measurement M = 8.468687e-07 +- 2.962025e-10 Tm^3 Theta = 0.124641 +- 0.141532 deg 15:22:56 Temperature Measurement, Probe Number = 0, T = 21.024661 C 15:22:58 Temperature Measurement, Probe Number = 1, T = 20.708057 C 15:23:00 Magnet Current, Imag = 6.0067 A Vtrans = 1.501668 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:23:01 Magnet Current, Imag = 6.0067 A Vtrans = 1.501666 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:23:02 Magnet Current, Imag = 6.0066 A Vtrans = 1.501660 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:23:04 Magnet Current, Imag = 6.0066 A Vtrans = 1.501661 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:23:04 Magnet Current Measurement: Imag = 6.0067 +- 0.0000 A 15:23:04 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.006655 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.443400e-07 Tm^3