Multi-connection-rod type inter-dimension decoupling two-dimensional wireless passive sensor

Abstract

The invention discloses a multi-connection-rod type inter-dimension decoupling two-dimensional wireless passive sensor, which comprises a sensor force bearing joint, an upper supporting cylinder, an upper multi-connection-rod connection round plate, a bending moment supporting round plate, a bending moment bearing body, a bending moment deformation ring, a lower multi-connection-rod connection round plate, a first torque connection round plate, a lower supporting cylinder, a second torque connection round plate, a torque bearing shaft, a torque deformation sheet, connection rods, a center connection rod sleeve, a torque limiting rod sleeve and a bending moment transmission rod. The multi-connection-rod type inter-dimension decoupling two-dimensional wireless passive sensor disclosed by theinvention can simultaneously detect a bending force component and a torsional force component in a coupling force, namely structurally decouple the coupling force; furthermore, no power supply line needs to be connected or no wired interface needs to acquire data; and the multi-connection-rod type inter-dimension decoupling two-dimensional wireless passive sensor may be applied to the medical field and is a human body implanted sensor, so that procedures of burying wires in a human body or doing second operation after the sensor is implanted into the human body are greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to a multi-link type inter-dimensional decoupling two-dimensional wireless passive sensor. 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 an elastic element. Multidimensional force sensor is a force sensor that can measure force and moment information in more than two directions at the same time, and is widely used in robotics, bioengineering, industrial manufacturing, medical and health and other fields. [0003] At present, two-dimensional and even multi-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. The structure of the sensor is to paste or install the strain-sensitive element...

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Problems solved by technology

[0004] However, when the sensor is subjected to the combination of torsional stress and bending stress, the sensor in the prior art often compensates and decouples the strain gauges by forming a bridge, and the mechanical structure does not have the ability to decouple the torsional stress and the bending stress.

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

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