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A new type calculable capacitor has been studied and developed at NIM in cooperation with NMIA. The situation and the preliminary results are presented with uncertainty of 20 parts in 109 for realization of the capacitance unit to 1 pF.
Figures method is based on the lissajou graph of more fringe photoelectric signal. The waveform generator produce signal of simulation, the signal lissajou graphs and actual collection of signal lissajou graphs fitting to and comparison. Through the goodness-of-fit parameters of judgement, we can determine parameters of actual waveform. Then we can get the photoelectric signal to meet the equation...
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