SLAC Magnetic Measurements Date: 10-19-2001 Time: 15:33:50 Project: nlc Magnet Type: PMblock Magnet Name: 0774 Serial Number: Run Number: 19 Measurement Device: Helmholtz coil Operator: zw Comment: 15:33:52 Initial Zero Current Measurement, Imag_zero = 0.0000 A 15:33:53 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 15:34:09 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 15:34:38 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 0.0037393 -0.0000332 0.0037395 -0.5090265 2 0.0000047 -0.0000014 0.0000049 -16.4909792 3 -0.0000002 -0.0000009 0.0000010 -101.9355247 4 -0.0000356 0.0000934 0.0001000 110.8551551 5 -0.0000011 0.0000002 0.0000011 171.2536307 6 0.0000017 -0.0000002 0.0000017 -8.0450216 7 0.0000008 -0.0000068 0.0000068 -83.0768854 8 -0.0000002 -0.0000139 0.0000139 -90.9058000 9 -0.0000016 0.0000038 0.0000041 112.9398430 10 0.0000007 -0.0000018 0.0000019 -67.3883646 15:34:54 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 0.0000048 0.0037392 0.0742034 2 -0.0000013 -0.0000001 0.0000013 -177.5304405 3 -0.0000011 -0.0000053 0.0000054 -101.8093087 4 0.0000184 -0.0001082 0.0001097 -80.3624441 5 -0.0000042 0.0000078 0.0000089 117.9196452 6 0.0000007 0.0000023 0.0000024 73.6925762 7 0.0000004 0.0000056 0.0000056 86.1183304 8 0.0000062 0.0000024 0.0000066 21.5633211 9 -0.0000035 -0.0000054 0.0000064 -123.1295459 10 0.0000005 0.0000011 0.0000012 64.8203024 15:35:10 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 0.0037379 -0.0000430 0.0037381 -0.6597537 2 0.0000023 -0.0000055 0.0000059 -67.3388070 3 -0.0000004 -0.0000100 0.0000100 -92.1387645 4 -0.0000999 0.0000223 0.0001023 167.4102477 5 0.0000001 -0.0000005 0.0000005 -82.6931357 6 0.0000012 -0.0000009 0.0000015 -36.9337439 7 0.0000003 -0.0000080 0.0000081 -87.7461707 8 0.0000039 -0.0000089 0.0000097 -66.1414688 9 -0.0000003 0.0000018 0.0000019 97.9105423 10 -0.0000008 -0.0000038 0.0000038 -101.9326045 15:35:26 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 0.0037389 -0.0000035 0.0037389 -0.0534583 2 -0.0000053 -0.0000062 0.0000081 -130.4316665 3 -0.0000009 -0.0000066 0.0000067 -98.1719460 4 -0.0001020 0.0000187 0.0001037 169.6351790 5 0.0000003 0.0000052 0.0000052 86.5316986 6 0.0000022 -0.0000048 0.0000053 -65.7035402 7 0.0000020 0.0000048 0.0000052 67.4039644 8 -0.0000005 -0.0000135 0.0000135 -92.1628681 9 0.0000005 -0.0000068 0.0000069 -85.7286677 10 0.0000013 -0.0000024 0.0000027 -61.4974360 15:35:26 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 0.0037388 0.0000004 -0.0000187 0.0000045 2 0.0000001 0.0000016 -0.0000033 0.0000026 3 -0.0000007 0.0000000 -0.0000057 0.0000026 4 -0.0000548 0.0000462 0.0000066 0.0000139 5 -0.0000012 0.0000014 0.0000032 0.0000008 6 0.0000014 0.0000003 -0.0000009 0.0000019 7 0.0000009 0.0000003 -0.0000011 0.0000005 8 0.0000023 0.0000006 -0.0000085 0.0000027 9 -0.0000012 0.0000013 -0.0000016 0.0000009 10 0.0000004 0.0000002 -0.0000017 0.0000014 15:35:27 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 = 3.738834e-03 Vs vthar_im_ave = -1.872764e-05 Vs mm_re_ave = 8.465925e-07 Tm^3 mm_im_ave = -4.240541e-09 Tm^3 15:35:27 Magnetic Moment Measurement M = 8.466031e-07 +- 9.702699e-11 Tm^3 Theta = 0.286989 +- 0.069543 deg 15:35:29 Temperature Measurement, Probe Number = 0, T = 21.075141 C 15:35:31 Temperature Measurement, Probe Number = 1, T = 20.724889 C 15:35:33 Magnet Current, Imag = 6.0070 A Vtrans = 1.501747 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:35:34 Magnet Current, Imag = 6.0070 A Vtrans = 1.501738 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:35:36 Magnet Current, Imag = 6.0070 A Vtrans = 1.501740 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:35:37 Magnet Current, Imag = 6.0070 A Vtrans = 1.501744 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:35:37 Magnet Current Measurement: Imag = 6.0070 +- 0.0000 A 15:35:37 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.006969 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.443841e-07 Tm^3