Adjustable pressure sensor and using method thereof

Abstract

The invention discloses an adjustable pressure sensor and a using method thereof and relates to the technical field of electronic devices. The device comprises a cylindrical base body, wherein a thermal resistor is arranged in the cylindrical base body and is of an annular structure; a plurality of guide grooves are formed in one side face of the cylindrical base body in the circumferential direction, guide pieces are slidably matched with the interiors of the guide grooves, and connecting rods are fixedly connected to the surfaces of the guide pieces; one end face of the connecting rod is fixedly connected with a pressure detection mechanism, and the pressure detection mechanism is matched with the thermal resistor in position. Through the design of the reset elastic piece, the thermal resistor, the spherical stress plate and the heat conversion element, when pressure acts on the spherical stress plate, a distance between the heat conversion element and the thermal resistor can be flexibly adjusted, and the heat conversion element is utilized to sense the temperature change near the thermal resistor, so pressure acting on the spherical stress plate is detected; compared with a traditional pressure sensor, output of capacitance or resistance variation is easier to measure.

Description

Technical field [0001] The present invention belongs to the technical field of electronic devices, and more particularly to an adjustable pressure sensor and method of use. Background technique [0002] Sensor technology is a core technology of modern measurement and automation systems, various types of sensors in the pressure sensor having a small size, light weight, high sensitivity, high stability, low cost, ease of integration of the advantages such that the pressure sensor has become everyday life and the most used industrial practice of a sensor, which is widely used in machinery manufacturing, intelligent building, aerospace, military defense, marine development, water conservancy and hydropower, railway transportation, meteorology geology, automotive, electronic communications, oil, medical services and many other fields. The pressure sensor can be classified into common resistive strain gauge, semiconductor strain gauge, piezoresistive, inductive, capacitive, piezoelectr...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an adjustable pressure sensor and its use method, through thermal resistors, reset elastic parts, resistance adjustment pins, arc-shaped engagement parts, adjustment columns, resistance adjustment dials, heat resistance plate and pressure detection mechanism The design solves the problem that the existing pressure sensor is mainly composed of mechanical structural devices, and the pressure is indicated by the deformation of the elastic element. The pressure sensor with this structure has a large size, low sensitivity and high power consumption, and cannot flexibly perform electrical output. The general pressure sensor has a single function and cannot realize the adjustment of its pressure detection range, which leads to the problem that the pressure sensor has a small application range

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