Shock-resistant high-temperature-resistant low-drift capacitance monitoring device

The invention belongs to the technical field of mechanical design, and particularly relates to an anti-seismic high-temperature-resistant low-drift capacitance monitoring device. The power amplifier comprises a silica gel outer sheath, a heat insulation protection layer, a silica gel inner sheath and an amplification circuit module, the silica gel outer sheath wraps the heat insulation protection layer, the heat insulation protection layer wraps the silica gel inner sheath, and the silica gel inner sheath wraps the amplification circuit module. According to the capacitance type liquid level meter, liquid level signals can be monitored by the capacitance type liquid level meter, and the measurement precision of capacitance signals related to the liquid level can be guaranteed in the environments of earthquakes, temperature shock and high temperature. 本发明属于机械设计技术领域，具体涉及一种抗震型耐高温低漂移的电容监测装置。本发明包括硅胶外护套、隔热保护层、硅胶内护套及放大电路模块，所述硅胶外护套包裹所述隔热保护层，所述隔热保护层包裹所述硅胶内护套，所述硅胶内护套包裹所述放大电路模块。本发明不仅可以实现电容式液位计对液位信号的监测，还可以实现在地震、温度冲击和高温环境下