SLAC Magnetic Measurements Date: 07-08-2004 Time: 15:36:45 Project: HHCalib Magnet Type: Calibrate Magnet Name: Coil Serial Number: Run Number: 17 Measurement Device: Helmholtz coil Operator: sa Comment: Calibration check before baseline PM blocks 15:36:46 Initial Zero Current Measurement, Imag_zero = 0.0000 A 15:36:47 Temperature Measurement Device(s) Being Used, type = YSI44036_HP3457 15:36:59 Begin Helmholtz Coil Measurement Helmholtz coil measurement: 15:37:28 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 0.0037489 -0.0001743 0.0037530 -2.6619743 2 -0.0000004 0.0000063 0.0000064 93.6619135 3 -0.0000029 0.0000051 0.0000059 119.4464265 4 -0.0000007 0.0000039 0.0000040 99.9579431 5 -0.0000015 0.0000036 0.0000039 112.2157223 6 -0.0000019 0.0000034 0.0000039 118.7440655 7 -0.0000025 0.0000040 0.0000047 122.1189185 8 -0.0000031 0.0000030 0.0000043 135.8074969 9 -0.0000052 0.0000055 0.0000075 133.3698341 10 -0.0000209 0.0000203 0.0000292 135.8362344 15:37:45 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 0.0037527 -0.0000045 0.0037527 -0.0680039 2 -0.0000041 0.0000090 0.0000099 114.4575060 3 -0.0000018 0.0000063 0.0000066 105.9575280 4 -0.0000006 0.0000047 0.0000048 97.3545796 5 -0.0000011 0.0000041 0.0000043 104.3528547 6 -0.0000020 0.0000041 0.0000045 116.1449335 7 -0.0000023 0.0000042 0.0000048 118.6616917 8 -0.0000015 0.0000048 0.0000050 107.0480536 9 -0.0000033 0.0000073 0.0000080 114.6926145 10 -0.0000152 0.0000254 0.0000296 120.8995142 15:38:01 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 0.0037517 -0.0001975 0.0037569 -3.0129510 2 0.0000028 -0.0000058 0.0000064 -64.7126945 3 0.0000004 -0.0000036 0.0000036 -84.0900819 4 0.0000023 -0.0000030 0.0000038 -51.9435049 5 0.0000021 -0.0000023 0.0000031 -48.5007593 6 0.0000029 -0.0000023 0.0000036 -38.3042559 7 0.0000028 -0.0000023 0.0000036 -39.3049055 8 0.0000038 -0.0000018 0.0000042 -25.0780939 9 0.0000071 -0.0000040 0.0000082 -29.0250569 10 0.0000268 -0.0000124 0.0000296 -24.8370751 15:38:18 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 0.0037527 -0.0000357 0.0037528 -0.5454650 2 -0.0000044 -0.0000070 0.0000083 -122.1676905 3 -0.0000019 -0.0000050 0.0000053 -110.4891979 4 -0.0000005 -0.0000045 0.0000045 -96.5708077 5 -0.0000012 -0.0000040 0.0000042 -106.4984012 6 -0.0000020 -0.0000042 0.0000046 -115.6185512 7 -0.0000021 -0.0000043 0.0000048 -116.4287990 8 -0.0000029 -0.0000036 0.0000046 -128.6080189 9 -0.0000047 -0.0000061 0.0000077 -127.6296918 10 -0.0000194 -0.0000224 0.0000296 -130.9346274 15:38:18 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 0.0037515 0.0000007 -0.0001030 0.0000136 2 -0.0000015 0.0000007 0.0000006 0.0000071 3 -0.0000015 0.0000008 0.0000007 0.0000050 4 0.0000001 0.0000008 0.0000003 0.0000040 5 -0.0000004 0.0000009 0.0000004 0.0000035 6 -0.0000008 0.0000012 0.0000003 0.0000035 7 -0.0000010 0.0000014 0.0000004 0.0000037 8 -0.0000009 0.0000014 0.0000006 0.0000033 9 -0.0000015 0.0000027 0.0000007 0.0000057 10 -0.0000072 0.0000109 0.0000027 0.0000201 15:38:18 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 = 3.751496e-03 Vs vthar_im_ave = -1.029873e-04 Vs mm_re_ave = 8.494595e-07 Tm^3 mm_im_ave = -2.331965e-08 Tm^3 15:38:18 Magnetic Moment Measurement M = 8.497796e-07 +- 1.743404e-10 Tm^3 Theta = 1.572508 +- 0.207708 deg 15:38:21 Temperature Measurement, Probe Number = 0, T = 20.555720 C 15:38:22 Temperature Measurement, Probe Number = 1, T = 20.408188 C 15:38:24 Magnet Current, Imag = 6.0210 A Vtrans = 1.505244 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:38:25 Magnet Current, Imag = 6.0210 A Vtrans = 1.505247 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:38:26 Magnet Current, Imag = 6.0210 A Vtrans = 1.505260 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:38:27 Magnet Current, Imag = 6.0211 A Vtrans = 1.505275 V, Factor V/A = 0.250000 V/A, Zero Current = 0.000000 A 15:38:27 Magnet Current Measurement: Imag = 6.0210 +- 0.0000 A 15:38:28 Calibration Coil Magnetic Moment Measurement Coil current, I = 6.021026 A Coil area, A = 0.111860 m^2 Magnetic Moment, M = 8.463601e-07 Tm^3