1pF的数显电容计

1 pF digital capacitance survey instrument

用CMOS门电路、1 0 0kHz石英晶体、单稳态电路及计数 /译码器 ,制作了测量精度可达 1

The article gives a full exposition of a digital capacitance survey instrument with the precision up to 1 pF, which is composed of CMOS circuit, 100 kHz quartz crystal, single stable mode circuit, and decimal counter/seven phase decoder, etc.