Capacitor unit overhauls trim measuring apparatu

The utility model relates to a capacitor unit overhauls trim measuring apparatu, including electric capacity measured module, capacitance measurement circuit includes an operational amplifier and the 2nd operational amplifier, an operational amplifier positive input terminal ground connection, the negative pole input links to each other with triode VT1 collecting electrode and positive supply, and triode VT1 projecting pole links to each other with the negative supply, set up electric capacity measuring joint between an operational amplifier's negative pole input and output, second operation amplifier output end links to each other with triode VT2 base, and triode VT2 collecting electrode links to each other with second operation amplifier negative pole input, constitutes schmidt trigger, and second operation amplifier positive input terminal and op amp output end link to each other, and triode VT2 projecting pole links to each other with triode VT3 projecting pole, and triode VT3 collecting electrode links t