SLAC Magnetic Measurements Date: 06-03-2004 Time: 10:23:34 Project: HHCalib Magnet Type: Calibrate Magnet Name: Coil Serial Number: Run Number: 13 Measurement Device: Helmholtz coil Operator: sa Comment: Calibration before NLC PM runs 10:23:36 Initial Zero Current Measurement, Imag_zero = 0.0000 A 10:23:36 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 10:23:52 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 10:24:22 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 0.0037444 -0.0000767 0.0037452 -1.1740684 2 -0.0000001 0.0000048 0.0000048 90.7170009 3 -0.0000015 0.0000033 0.0000036 114.4522749 4 -0.0000001 0.0000010 0.0000010 92.8246246 5 -0.0000004 0.0000015 0.0000016 105.4773754 6 -0.0000009 0.0000013 0.0000015 125.2601617 7 -0.0000007 0.0000014 0.0000016 118.5776725 8 -0.0000009 0.0000023 0.0000024 111.1379689 9 0.0000001 0.0000028 0.0000028 88.0577796 10 -0.0000004 0.0000049 0.0000049 94.9750412 10:24:39 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 0.0037435 0.0000839 0.0037445 1.2834072 2 -0.0000012 -0.0000058 0.0000059 -102.1217768 3 0.0000011 -0.0000024 0.0000026 -65.3000005 4 0.0000014 -0.0000006 0.0000015 -25.1504644 5 0.0000010 -0.0000008 0.0000012 -39.3088638 6 0.0000015 -0.0000006 0.0000016 -22.4845078 7 0.0000011 -0.0000016 0.0000020 -55.9938111 8 0.0000019 -0.0000009 0.0000021 -25.9890602 9 0.0000021 -0.0000005 0.0000021 -14.9994134 10 0.0000050 -0.0000012 0.0000052 -13.7026688 10:24:56 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 0.0037459 -0.0000837 0.0037469 -1.2802667 2 0.0000010 0.0000013 0.0000016 53.1635221 3 0.0000002 0.0000014 0.0000014 80.7176340 4 0.0000016 -0.0000011 0.0000020 -34.9887381 5 0.0000012 -0.0000002 0.0000012 -9.7735176 6 0.0000013 -0.0000006 0.0000014 -24.8585220 7 0.0000013 -0.0000005 0.0000014 -18.7832261 8 0.0000016 0.0000006 0.0000017 19.8911666 9 0.0000020 -0.0000007 0.0000021 -19.1792934 10 0.0000049 -0.0000012 0.0000050 -13.6741642 10:25:12 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 0.0037374 0.0000856 0.0037383 1.3123490 2 -0.0000026 -0.0000050 0.0000057 -117.6492531 3 -0.0000006 -0.0000022 0.0000023 -105.7569592 4 -0.0000003 -0.0000004 0.0000005 -126.7799510 5 -0.0000009 -0.0000001 0.0000009 -174.3996848 6 -0.0000013 -0.0000001 0.0000013 -173.8122222 7 -0.0000010 -0.0000008 0.0000013 -138.5298235 8 -0.0000027 -0.0000006 0.0000028 -166.5564627 9 -0.0000020 -0.0000006 0.0000021 -162.3675224 10 -0.0000038 -0.0000027 0.0000047 -144.6060840 10:25:13 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 0.0037428 0.0000012 0.0000023 0.0000013 2 -0.0000007 0.0000001 -0.0000012 0.0000007 3 -0.0000002 0.0000000 0.0000000 0.0000004 4 0.0000007 0.0000000 -0.0000003 0.0000005 5 0.0000002 0.0000001 0.0000001 0.0000003 6 0.0000001 0.0000002 -0.0000000 0.0000003 7 0.0000002 0.0000000 -0.0000004 0.0000003 8 -0.0000000 0.0000005 0.0000003 0.0000004 9 0.0000005 0.0000005 0.0000002 0.0000009 10 0.0000014 0.0000009 -0.0000001 0.0000019 10:25:13 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 = 3.742809e-03 Vs vthar_im_ave = 2.257761e-06 Vs mm_re_ave = 8.474925e-07 Tm^3 mm_im_ave = 5.112298e-10 Tm^3 10:25:13 Magnetic Moment Measurement M = 8.474927e-07 +- 2.643702e-10 Tm^3 Theta = -0.034562 +- 0.020000 deg 10:25:15 Temperature Measurement, Probe Number = 0, T = 20.935849 C 10:25:17 Temperature Measurement, Probe Number = 1, T = 20.554375 C 10:25:18 Magnet Current, Imag = 6.0207 A Vtrans = 1.505185 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 10:25:19 Magnet Current, Imag = 6.0207 A Vtrans = 1.505171 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 10:25:21 Magnet Current, Imag = 6.0207 A Vtrans = 1.505168 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 10:25:22 Magnet Current, Imag = 6.0207 A Vtrans = 1.505163 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 10:25:22 Magnet Current Measurement: Imag = 6.0207 +- 0.0000 A 10:25:22 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.020687 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.463124e-07 Tm^3