SLAC Magnetic Measurements Date: 10-19-2001 Time: 15:37:28 Project: nlc Magnet Type: PMblock Magnet Name: 0774 Serial Number: Run Number: 20 Measurement Device: Helmholtz coil Operator: zw Comment: 15:37:30 Initial Zero Current Measurement, Imag_zero = 0.0000 A 15:37:30 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 15:37:44 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 15:38:13 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 0.0037418 -0.0000664 0.0037424 -1.0167088 2 0.0000024 0.0000043 0.0000050 60.3810497 3 -0.0000085 -0.0000039 0.0000094 -155.2484055 4 -0.0000335 -0.0000297 0.0000448 -138.3747033 5 0.0000084 0.0000097 0.0000128 49.2087651 6 -0.0000005 0.0000028 0.0000028 100.5714647 7 0.0000004 -0.0000027 0.0000027 -82.0088736 8 -0.0000016 -0.0000004 0.0000016 -164.7142618 9 -0.0000011 0.0000076 0.0000076 98.1144325 10 -0.0000008 0.0000019 0.0000021 114.0115567 15:38:30 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 0.0037429 0.0000405 0.0037431 0.6202401 2 -0.0000050 -0.0000046 0.0000067 -137.3127955 3 0.0000061 -0.0000035 0.0000071 -29.6817980 4 -0.0000070 0.0000397 0.0000403 100.0552958 5 -0.0000057 -0.0000019 0.0000060 -161.2882066 6 -0.0000018 -0.0000031 0.0000036 -119.1379888 7 0.0000005 0.0000025 0.0000025 79.4958813 8 -0.0000019 -0.0000051 0.0000054 -110.4463468 9 -0.0000020 -0.0000074 0.0000076 -104.9492967 10 -0.0000002 -0.0000017 0.0000017 -97.4063341 15:38:46 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 -1.0317224 2 0.0000038 0.0000031 0.0000049 39.1200976 3 -0.0000087 -0.0000046 0.0000099 -152.0077936 4 -0.0000052 0.0000440 0.0000443 96.7604577 5 0.0000069 0.0000083 0.0000109 50.3046064 6 0.0000002 0.0000012 0.0000012 82.4115933 7 -0.0000006 -0.0000042 0.0000043 -97.7901501 8 -0.0000050 0.0000022 0.0000055 155.9877778 9 -0.0000013 0.0000062 0.0000063 101.4768370 10 -0.0000009 0.0000010 0.0000014 132.0190424 15:39:02 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 0.0037426 0.0000366 0.0037428 0.5596845 2 -0.0000035 -0.0000087 0.0000094 -111.8643165 3 0.0000042 -0.0000047 0.0000063 -48.5647624 4 -0.0000410 -0.0000084 0.0000418 -168.4429198 5 -0.0000048 0.0000001 0.0000048 178.8903238 6 0.0000012 -0.0000038 0.0000040 -72.6012868 7 0.0000016 0.0000029 0.0000033 60.5332336 8 0.0000039 -0.0000003 0.0000040 -3.6987461 9 -0.0000008 -0.0000068 0.0000068 -96.4001756 10 0.0000003 -0.0000024 0.0000025 -84.1707240 15:39:02 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 0.0037422 0.0000002 -0.0000142 0.0000012 2 -0.0000005 0.0000007 -0.0000015 0.0000013 3 -0.0000017 0.0000006 -0.0000042 0.0000005 4 -0.0000217 0.0000014 0.0000114 0.0000064 5 0.0000012 0.0000001 0.0000041 0.0000002 6 -0.0000002 0.0000009 -0.0000008 0.0000006 7 0.0000005 0.0000000 -0.0000004 0.0000003 8 -0.0000011 0.0000006 -0.0000009 0.0000019 9 -0.0000013 0.0000003 -0.0000001 0.0000002 10 -0.0000004 0.0000001 -0.0000003 0.0000004 15:39:03 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 = 3.742170e-03 Vs vthar_im_ave = -1.417554e-05 Vs mm_re_ave = 8.473479e-07 Tm^3 mm_im_ave = -3.209798e-09 Tm^3 15:39:03 Magnetic Moment Measurement M = 8.473539e-07 +- 4.343212e-11 Tm^3 Theta = 0.217038 +- 0.018873 deg 15:39:05 Temperature Measurement, Probe Number = 0, T = 21.085586 C 15:39:07 Temperature Measurement, Probe Number = 1, T = 20.751891 C 15:39:09 Magnet Current, Imag = 6.0067 A Vtrans = 1.501686 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:39:11 Magnet Current, Imag = 6.0067 A Vtrans = 1.501685 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:39:12 Magnet Current, Imag = 6.0068 A Vtrans = 1.501688 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:39:13 Magnet Current, Imag = 6.0067 A Vtrans = 1.501682 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:39:13 Magnet Current Measurement: Imag = 6.0067 +- 0.0000 A 15:39:14 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.006741 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.443521e-07 Tm^3