SLAC Magnetic Measurements Date: 06-03-2004 Time: 14:48:15 Project: HHCalib Magnet Type: Calibrate Magnet Name: Coil_test Serial Number: Run Number: 29 Measurement Device: Helmholtz coil Operator: sa Comment: Motor not turning, fixed checking calib 14:48:17 Initial Zero Current Measurement, Imag_zero = 0.0000 A 14:48:17 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 14:48:30 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 14:48:59 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 0.0036265 0.0009525 0.0037495 14.7158672 2 0.0000017 0.0000037 0.0000040 64.7197672 3 0.0000007 0.0000030 0.0000031 76.9147418 4 0.0000023 0.0000024 0.0000034 46.3199332 5 0.0000020 0.0000018 0.0000027 40.9883331 6 0.0000018 0.0000021 0.0000028 49.6395732 7 0.0000024 0.0000018 0.0000030 37.1300077 8 0.0000041 0.0000021 0.0000046 27.5943058 9 0.0000068 0.0000042 0.0000080 31.4598051 10 0.0000264 0.0000134 0.0000297 26.9486197 14:49:16 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 0.0035734 0.0011045 0.0037402 17.1763055 2 -0.0000004 -0.0000100 0.0000100 -92.1244945 3 -0.0000002 -0.0000064 0.0000064 -92.1453081 4 -0.0000005 -0.0000051 0.0000051 -95.2689060 5 -0.0000008 -0.0000040 0.0000041 -101.0799318 6 -0.0000011 -0.0000037 0.0000039 -106.2231077 7 -0.0000012 -0.0000045 0.0000047 -105.2850404 8 -0.0000017 -0.0000052 0.0000055 -108.2159022 9 -0.0000032 -0.0000074 0.0000080 -113.1298297 10 -0.0000122 -0.0000276 0.0000301 -113.7934681 14:49:33 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 0.0036238 0.0009351 0.0037425 14.4696759 2 -0.0000011 -0.0000049 0.0000050 -103.0538017 3 -0.0000024 -0.0000030 0.0000038 -128.3889828 4 -0.0000011 -0.0000027 0.0000029 -111.6121311 5 -0.0000019 -0.0000025 0.0000031 -127.9372366 6 -0.0000025 -0.0000022 0.0000034 -138.7079298 7 -0.0000031 -0.0000031 0.0000044 -135.7857007 8 -0.0000041 -0.0000023 0.0000047 -150.3888451 9 -0.0000066 -0.0000035 0.0000075 -152.0146090 10 -0.0000264 -0.0000142 0.0000300 -151.8360141 14:49:49 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 0.0035737 0.0011033 0.0037401 17.1574819 2 -0.0000002 -0.0000112 0.0000112 -90.8217335 3 -0.0000001 -0.0000070 0.0000070 -90.5704230 4 -0.0000004 -0.0000051 0.0000051 -94.7777723 5 -0.0000005 -0.0000045 0.0000046 -95.8585039 6 -0.0000007 -0.0000040 0.0000041 -99.3166964 7 -0.0000008 -0.0000049 0.0000050 -99.7759301 8 -0.0000010 -0.0000056 0.0000057 -100.3413392 9 -0.0000021 -0.0000077 0.0000080 -105.0354153 10 -0.0000077 -0.0000295 0.0000305 -104.7057151 14:49:49 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 0.0035993 0.0000006 0.0010239 0.0000046 2 0.0000000 0.0000007 -0.0000056 0.0000024 3 -0.0000005 0.0000007 -0.0000034 0.0000016 4 0.0000001 0.0000008 -0.0000026 0.0000013 5 -0.0000003 0.0000009 -0.0000023 0.0000012 6 -0.0000006 0.0000010 -0.0000020 0.0000012 7 -0.0000007 0.0000013 -0.0000027 0.0000013 8 -0.0000007 0.0000019 -0.0000028 0.0000012 9 -0.0000013 0.0000031 -0.0000036 0.0000020 10 -0.0000050 0.0000121 -0.0000144 0.0000074 14:49:49 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 = 3.599332e-03 Vs vthar_im_ave = 1.023863e-03 Vs mm_re_ave = 8.150048e-07 Tm^3 mm_im_ave = 2.318356e-07 Tm^3 14:49:49 Magnetic Moment Measurement M = 8.473374e-07 +- 3.169405e-10 Tm^3 Theta = -15.878890 +- 0.068330 deg 14:49:52 Temperature Measurement, Probe Number = 0, T = 20.654323 C 14:49:53 Temperature Measurement, Probe Number = 1, T = 20.394064 C 14:49:55 Magnet Current, Imag = 6.0206 A Vtrans = 1.505144 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 14:49:56 Magnet Current, Imag = 6.0206 A Vtrans = 1.505146 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 14:49:57 Magnet Current, Imag = 6.0206 A Vtrans = 1.505142 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 14:49:58 Magnet Current, Imag = 6.0206 A Vtrans = 1.505150 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 14:49:59 Magnet Current Measurement: Imag = 6.0206 +- 0.0000 A 14:49:59 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.020582 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.462976e-07 Tm^3