Strain type multidirectional force transducer with self-decoupling function

Abstract

The invention relates to a strain type multidirectional force transducer with a self-decoupling function, wherein the strain type multidirectional force transducer belongs to the field of a load sensor. The strain type multidirectional force transducer comprises a four-column type structure, a strain gauge and a compensating gauge. The four-column type structure has a structure in which four columns are placed between an upper disc and a lower disc, and the four columns are arranged in a manner that two random columns are in symmetry with the other two columns. The strain gauge and the compensating gauge abut against the columns. The manufactured device is sealed in a sleeve, and air in the sleeve is replaced by insert gas, thereby ensuring no moisture absorption or moistening and preventing long-term stability reduction of the device. According to the strain type multidirectional force transducer, the four-column type symmetrical structure and bridging signal separation technology are utilized so that the sensor has high self-decoupling performance, thereby realizing simultaneous measurement for aeroengine thrust vectors, namely three force amplitude components and three moments, supplying more reliable and comprehensive technological data support for a vector thrust engine testing experiment, realizing higher reliability in an engine thrust measurement method, and obtaining higher accuracy of the measured data.

Description

technical field [0001] The invention relates to a strain type multi-dimensional force sensor with self-decoupling function, which belongs to the field of load sensors. Background technique [0002] A sensor is a device and device that can sense a specified measured value and convert it into a usable signal according to a certain rule, usually consisting of a sensitive element and a conversion element. A multi-component force sensor refers to a force sensor that can measure force and moment components in more than two directions at the same time. In the Cartesian coordinate system, force and moment can be decomposed into three components respectively. Therefore, the most complete form of multi-component is six Component force sensor. Multi-component, especially six-component force sensors are widely used in manufacturing and testing fields such as aviation, aerospace and armored vehicles. [0003] Six-component force sensors are mainly divided into resistance strain, piezoe...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a strain-type multi-dimensional force sensor with self-decoupling function to solve the problems of poor self-decoupling performance and unsuitability for small-scale measurement in the prior art

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