Accelerometer is used widely for measuring acceleration in civil and military field . at present , there are several type of accelerometers such as piezoelectricity electric charge accelerometer , ic piezoelectricity electric accelerometer , compressive resistance accelerometer and alteration capacitance accelerometer . the main part in alteration capacitance accelerometer is capacitance measurement circuit . foreign countries have produced accelerometer that have tiny volume and high performance . however , our country is not able to produce such accelerometer due to the lack of technique 加速度計(jì)作為一種測量加速度的儀器,在民用、軍用領(lǐng)域都有廣泛的應(yīng)用。目前市場上的加速度計(jì)主要有壓電式電荷加速度計(jì)、集成電路式壓電加速度計(jì)、壓阻式加速度計(jì)、變電容式加速度計(jì)等幾種類型的加速度計(jì)。變電容式加速度計(jì)的設(shè)計(jì)中一個(gè)重要的環(huán)節(jié)就是電容檢測電路的設(shè)計(jì)。