Universal pressure sensor

Abstract

The invention belongs to the technical field of sensors, and particularly relates to a universal pressure sensor which comprises a sphere-like shell, a detector and a distance measuring device, and the detector and the distance measuring device are mounted in the sphere-like shell. The sphere-like shell is elastic, and an isotropic medium is sealed in the sphere-like shell; the detector is used for detecting the pressure intensity of the isotropic medium when the isotropic medium is pressed; and the distance measuring device is used for detecting the deformation quantity and the deformation direction of the deformation position when the sphere-like shell is pressed. The universal pressure sensor can detect pressure values in all directions when detecting pressure, can reversely deduce the direction of the pressure, is installed at the end of a mechanical structure, can detect the stress direction and the stress magnitude of the end of the mechanical structure, and provides convenience for stress analysis of the mechanical structure. Meanwhile, according to the universal pressure sensor, the magnitude of the borne pressure can be obtained, the area of the contact surface can be estimated, and pressure sources in different directions can be distinguished in some scenes.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular, the invention relates to a universal pressure sensor. Background technique [0002] Pressure sensor is the most commonly used sensor in industrial practice. It is widely used in various industrial automatic control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemical, oil wells, electric power, ships, machine tools , pipeline, medicine and many other industries. [0003] The pressure sensor can be used to detect the magnitude of the pressure value, and the detection is directional, and the detection accuracy is high in some specific directions, but it has no detection function or low detection accuracy in other directions. For example, the application number is 202010996030.8, the application date is September 21, 2020, and the patent application document n...

AI Technical Summary

Problems solved by technology

The pressure sensor has different birefringence of the crystal due to different pressures, and then detects the pressure by detecting the interference spectrum under different birefringences. Although it can detect the pressure value, it has certain limitations and can only be more accurate in a certain direction. Detect the pressure value, but not the exact direction of the pressure

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