Minisize condenser type sensing, bearing structure integrated electric voltage detector

Abstract

The invention relates to an electronic pressure gauge for pressure measurement, in particular to an electronic pressure gauge integrated with micro capacitance sensor and bearing structure. The pressure gauge solves the problem that pressure sensors of the current electronic pressure gauges have quite large size, so that the overall size of the electronic pressure gauges are too large, and the pressure gauges cannot be used in occasions with limited space. The electronic pressure gauge integrated with micro capacitance sensor and bearing structure includes a cylindrical dynamic plate made of elastic metal material and as a shell, and a cylindrical fixed plate which is fixed in the center of the cylindrical dynamic plate and forms a detection capacitance with the cylindrical dynamic plate; a measuring circuit connected with the output of the detection capacitance consisting of the cylindrical fixed plate and the cylindrical dynamic plate is arranged in the cylindrical fixed plate. The invention has the advantages of simple structure, small size, wide scope of application, low manufacturing cost, etc.

Description

technical field [0001] The invention relates to an electronic pressure measuring device for pressure testing, in particular to an electronic pressure measuring device integrated with a miniature capacitive sensor and a pressure bearing structure. Background technique [0002] The electronic pressure gauge is a special test instrument suitable for the gun bore pressure test. It is suitable for putting in the pressure test equipment for the transient pressure test in the special environment of high temperature and high pressure in the gun bore. According to the particularity of its use environment, the electronic The pressure gauge has the following requirements: 1. It can withstand the high pressure in the chamber and the instantaneous high temperature accompanying the high pressure. The high pressure can reach 800MPa, and the instantaneous high temperature can reach 3000°C. Therefore, the environmental adaptability of the electronic pressure gauge is very high. ;2. The elect...

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Problems solved by technology

[0003] In order to solve the problem that the volume of the pressure sensor configured in the existing electronic manometer is large, the overall volume of the electronic manometer is too large to meet the use requirements of the occasion with limited volume (for example: small and medium caliber gun bore pressure test), Provides a miniature capacitive sensor, pressure-bearing structure integrated electronic pressure gauge

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