Flexible pull rod type series inter-dimensional decoupling wireless passive sensor

Abstract

The invention discloses a flexible pull rod type inter-dimensional decoupling wireless passive sensor. The sensor comprises an axial force push-pull shaft, an axial force outer end fixing plate, an axial force conversion rod, an axial force conversion connecting rod, an axial force conversion connecting sliding block, an axial force strain gauge, an axial force outer end fixing plate, an axial force spacing cylinder, an axial force spacing plate, an axial force conversion connecting sliding block, an axial force supporting ring, a torque connecting shaft, a connecting inner ring, a torque strain gauge, a twisting connecting plate, a torque connecting ring, a strain gauge connecting outer ring, a bending moment upper supporting plate, a bending moment lower supporting plate, a bending moment steel wire rope connector, a bending moment axial tension supporting plate, a bending moment strain gauge, a bending moment direction upper supporting plate, a bending moment supporting rod, a bending moment direction lower supporting plate and a bending moment direction induction piece. According to the invention, the axial force component, the bending force component and the torsion force component in the coupling force can be detected at the same time, i.e., the coupling force is subjected to structural decoupling; and a power supply circuit or a wired interface for data acquisition is not needed.

Description

technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to a flexible pull-rod type serial inter-dimensional decoupling wireless passive sensor. Background technique [0002] At present, multi-dimensional and even six-dimensional force sensors are mainly divided into resistance strain type, piezoelectric type and capacitive force sensor, which are simple in structure, sensitive and high in precision. However, this type of sensor is decoupled by algorithm, and there are still structural problems in the separation rate of coupling force and response accuracy. [0003] The structure of the sensor is to paste or install the strain-sensitive element on the elastic element of a certain shape or by other methods. When the mechanical quantity acts on the elastic element, the elastic element deforms, and the resistance value of the strain-sensitive element changes accordingly, and then the resistance value change is converted into a ...

AI Technical Summary

Problems solved by technology

[0005] Existing multi-dimensional / six-dimensional sensors, because wires must be used to connect strain gauges, even if radio is used for information transmission, but the battery contains limited power, it is difficult to achieve long-term dynamic monitoring

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