L/C Meter IIB repeatability test result.
I built five L/C Meter IIBs and did a full inductance calibration on each to test repeatability between units.
The average error was well within specifications for all five.
Results are shown below:
| Booton standard (uHy) | unit 1 | unit 2 | unit 3 | unit 4 | unit 5 | ||||||||||
| 0.905 | 0.908 | 0.331% | 0.898 | -0.773% | 0.912 | 0.773% | 0.906 | 0.110% | 0.905 | 0.000% | |||||
| 1.870 | 1.877 | 0.374% | 1.878 | 0.428% | 1.851 | -1.016% | 1.877 | 0.374% | 1.873 | 0.160% | |||||
| 2.800 | 2.800 | 0.000% | 2.808 | 0.286% | 2.808 | 0.286% | 2.809 | 0.321% | 2.825 | 0.893% | |||||
| 9.430 | 9.353 | -0.817% | 9.347 | -0.880% | 9.451 | 0.223% | 9.365 | -0.689% | 9.353 | -0.817% | |||||
| 19.300 | 19.150 | -0.777% | 19.13 | -0.881% | 19.35 | 0.259% | 19.2 | -0.518% | 19.16 | -0.725% | |||||
| 29.300 | 29.100 | -0.683% | 29.08 | -0.751% | 29.41 | 0.375% | 29.18 | -0.410% | 29.14 | -0.546% | |||||
| 106.000 | 106.800 | 0.755% | 106.9 | 0.849% | 107.6 | 1.509% | 107.3 | 1.226% | 107.3 | 1.226% | |||||
| 184.000 | 186.400 | 1.304% | 186.2 | 1.196% | 187.5 | 1.902% | 186.8 | 1.522% | 186.8 | 1.522% | |||||
| 261.000 | 264.200 | 1.226% | 264.1 | 1.188% | 265.9 | 1.877% | 265 | 1.533% | 265 | 1.533% | |||||
| average error | 0.191% | 0.073% | 0.688% | 0.386% | 0.361% | ||||||||||
| Booton | |||||||||||||||
| standards | |||||||||||||||
| uHy | uHy | uHy | uHy | uHy | uHy | ||||||||||
| 0.25 | 0.260 | 4.000% | 0.256 | 2.400% | 0.255 | 2.000% | 0.263 | 5.200% | 0.259 | 3.600% | |||||
| 0.50 | 0.511 | 2.200% | 0.506 | 1.200% | 0.501 | 0.200% | 0.572 | 14.400% | 0.504 | 0.800% | |||||
| 1.00 | 1.008 | 0.800% | 1.005 | 0.500% | 1.013 | 1.300% | 1.008 | 0.800% | 1.005 | 0.500% | |||||
| 2.50 | 2.511 | 0.440% | 2.495 | -0.200% | 2.525 | 1.000% | 2.512 | 0.480% | 2.497 | -0.120% | |||||
| 5.00 | 5.011 | 0.220% | 4.991 | -0.180% | 5.039 | 0.780% | 5.011 | 0.220% | 4.995 | -0.100% | |||||
| 10.00 | 10.000 | 0.000% | 9.978 | -0.220% | 10.080 | 0.800% | 10.010 | 0.100% | 9.982 | -0.180% | |||||
| 25.00 | 25.130 | 0.520% | 25.04 | 0.160% | 25.310 | 1.240% | 25.430 | 1.720% | 25.050 | 0.200% | |||||
| 50.00 | 50.630 | 1.260% | 50.45 | 0.900% | 50.990 | 1.980% | 50.600 | 1.200% | 50.480 | 0.960% | |||||
| 100.00 | 101.800 | 1.800% | 101.4 | 1.400% | 102.500 | 2.500% | 101.800 | 1.800% | 101.600 | 1.600% | |||||
| 250.00 | 258.000 | 3.200% | 257.1 | 2.840% | 259.300 | 3.720% | 258.000 | 3.200% | 257.200 | 2.880% | |||||
| 500.00 | 518.100 | 3.620% | 515.4 | 3.080% | 520.600 | 4.120% | 517.800 | 3.560% | 516.400 | 3.280% | |||||
| mHy | mHy | mHy | mHy | mHy | mHy | ||||||||||
| 1.00 | 1.040 | 4.000% | 1.034 | 3.400% | 1.043 | 4.300% | 1.039 | 3.900% | 1.036 | 3.600% | |||||
| 2.50 | 2.577 | 3.080% | 2.562 | 2.480% | 2.586 | 3.440% | 2.579 | 3.160% | 2.569 | 2.760% | |||||
| 5.00 | 5.080 | 1.600% | 5.057 | 1.140% | 5.099 | 1.980% | 5.077 | 1.540% | 5.065 | 1.300% | |||||
| 10.00 | 10.080 | 0.800% | 10.03 | 0.300% | 10.100 | 1.000% | 10.070 | 0.700% | 10.040 | 0.400% | |||||
| 25.00 | 25.360 | 1.440% | 25.22 | 0.880% | 25.430 | 1.720% | 25.350 | 1.400% | 25.270 | 1.080% | |||||
| average error | 1.811% | 1.255% | 2.005% | 2.711% | 1.410% | ||||||||||
| HP | |||||||||||||||
| Standards | |||||||||||||||
| uHy | uHy | uHy | uHy | uHy | uHy | ||||||||||
| 0.070 | 0.062 | -11.43% | 0.071 | 1.429% | 0.063 | -10.000% | 0.068 | -2.857% | 0.070 | 0.000% | |||||
| 0.100 | 0.103 | 3.00% | 0.100 | 0.000% | 0.095 | -5.000% | 0.095 | -5.000% | 0.098 | -2.000% | |||||
| 0.280 | 0.253 | -9.64% | 0.260 | -7.143% | 0.250 | -10.714% | 0.257 | -8.214% | 0.258 | -7.857% | |||||
| 0.520 | 0.493 | -5.19% | 0.479 | -7.885% | 0.486 | -6.538% | 0.488 | -6.154% | 0.481 | -7.500% | |||||
| 1.000 | 0.963 | -3.70% | 0.954 | -4.600% | 0.960 | -4.000% | 0.975 | -2.500% | 0.958 | -4.200% | |||||
| 2.500 | 2.510 | 0.40% | 2.501 | 0.040% | 2.516 | 0.640% | 2.525 | 1.000% | 2.501 | 0.040% | |||||
| 5.200 | 5.124 | -1.46% | 5.106 | -1.808% | 5.140 | -1.154% | 5.124 | -1.462% | 5.112 | -1.692% | |||||
| 10.000 | 9.888 | -1.12% | 9.884 | -1.160% | 9.952 | -0.480% | 9.911 | -0.890% | 9.885 | -1.150% | |||||
| 28.000 | 27.270 | -2.61% | 27.250 | -2.679% | 27.500 | -1.786% | 27.330 | -2.393% | 27.280 | -2.571% | |||||
| 56.000 | 55.340 | -1.18% | 55.270 | -1.304% | 55.780 | -0.393% | 55.420 | -1.036% | 55.580 | -0.750% | |||||
| 100.000 | 98.480 | -1.52% | 98.320 | -1.680% | 99.220 | -0.780% | 98.600 | -1.400% | 98.580 | -1.420% | |||||
| 250.000 | 259.300 | 3.72% | 257.700 | 3.080% | 260.000 | 4.000% | 258.500 | 3.400% | 258.600 | 3.440% | |||||
| 520.000 | 521.200 | 0.23% | 520.000 | 0.000% | 524.500 | 0.865% | 521.800 | 0.346% | 522.000 | 0.385% | |||||
| mHy | mHy | mHy | mHy | mHy | mHy | ||||||||||
| 1.000 | 1.007 | 0.70% | 1.004 | 0.400% | 1.012 | 1.200% | 1.008 | 0.800% | 1.008 | 0.800% | |||||
| 2.800 | 2.830 | 1.07% | 2.822 | 0.786% | 2.844 | 1.571% | 2.833 | 1.179% | 2.833 | 1.179% | |||||
| 5.200 | 5.167 | -0.63% | 5.154 | -0.885% | 5.192 | -0.154% | 5.174 | -0.500% | 5.173 | -0.519% | |||||
| 10.000 | 9.817 | -1.83% | 9.790 | -2.100% | 9.862 | -1.380% | 9.828 | -1.720% | 9.827 | -1.730% | |||||
| 25.000 | 25.340 | 1.36% | 25.270 | 1.080% | 25.460 | 1.840% | 25.360 | 1.440% | 25.360 | 1.440% | |||||
| 52.000 | 49.340 | -5.12% | 49.750 | -4.327% | 50.150 | -3.558% | 49.960 | -3.923% | 49.920 | -4.000% | |||||
| 130.000 | 133.700 | 2.85% | 133.000 | 2.308% | 134.300 | 3.308% | 133.800 | 2.923% | 133.400 | 2.615% | |||||
| average error | -1.605% | -1.322% | -1.626% | -1.348% | -1.275% | ||||||||||
| Marconi | |||||||||||||||
| Standards | |||||||||||||||
| uHy | uHy | uHy | uHy | uHy | uHy | ||||||||||
| 0.20 | 0.219 | 9.500% | 0.207 | 3.500% | 0.205 | 2.500% | 0.221 | 10.500% | 0.212 | 6.000% | |||||
| 1.00 | 1.025 | 2.500% | 1.005 | 0.500% | 1.023 | 2.300% | 1.021 | 2.100% | 1.027 | 2.700% | |||||
| 1.50 | 1.510 | 0.667% | 1.496 | -0.267% | 1.512 | 0.800% | 1.507 | 0.467% | 1.509 | 0.600% | |||||
| 2.50 | 2.448 | -2.080% | 2.434 | -2.640% | 2.459 | -1.640% | 2.441 | -2.360% | 2.443 | -2.280% | |||||
| 5.00 | 5.072 | 1.440% | 5.059 | 1.180% | 5.088 | 1.760% | 5.064 | 1.280% | 5.051 | 1.020% | |||||
| 10.00 | 9.663 | -3.370% | 9.616 | -3.840% | 9.722 | -2.780% | 9.658 | -3.420% | 9.656 | -3.440% | |||||
| 25.00 | 24.570 | -1.720% | 24.47 | -2.120% | 24.71 | -1.160% | 24.54 | -1.840% | 24.52 | -1.920% | |||||
| 50.00 | 49.670 | -0.660% | 49.48 | -1.040% | 49.96 | -0.080% | 48.61 | -2.780% | 49.59 | -0.820% | |||||
| 75.00 | 74.910 | -0.120% | 74.59 | -0.547% | 75.35 | 0.467% | 74.8 | -0.267% | 74.79 | -0.280% | |||||
| 100.00 | 100.700 | 0.700% | 100.2 | 0.200% | 101.2 | 1.200% | 100.5 | 0.500% | 100.5 | 0.500% | |||||
| 200.00 | 201.500 | 0.750% | 200.5 | 0.250% | 202.3 | 1.150% | 201.1 | 0.550% | 201.2 | 0.600% | |||||
| 250.00 | 253.900 | 1.560% | 252.6 | 1.040% | 254.9 | 1.960% | 253.4 | 1.360% | 253.5 | 1.400% | |||||
| 500.00 | 501.100 | 0.220% | 498.5 | -0.300% | 502.9 | 0.580% | 500 | 0.000% | 500.3 | 0.060% | |||||
| mHy | mHy | mHy | mHy | mHy | mHy | ||||||||||
| 1.00 | 1.021 | 2.100% | 1.015 | 1.500% | 1.023 | 2.300% | 1.018 | 1.800% | 1.019 | 1.900% | |||||
| 2.50 | 2.574 | 2.960% | 2.56 | 2.400% | 2.58 | 3.200% | 2.568 | 2.720% | 2.57 | 2.800% | |||||
| 5.00 | 4.989 | -0.220% | 4.965 | -0.700% | 5.004 | 0.080% | 4.978 | -0.440% | 4.981 | -0.380% | |||||
| 10.00 | 10.100 | 1.000% | 10.05 | 0.500% | 10.13 | 1.300% | 10.08 | 0.800% | 10.09 | 0.900% | |||||
| 25.00 | 24.530 | -1.880% | 24.4 | -2.400% | 24.6 | -1.600% | 24.47 | -2.120% | 24.49 | -2.040% | |||||
| average error | 0.741% | -0.155% | 0.685% | 0.492% | 0.407% | ||||||||||
| unit 1 | unit 2 | unit 3 | unit 4 | unit 5 | |||||||||||
|
0.190% | -0.135% | 0.287% | 0.456% | 0.121% |