Inter-dimension decoupling two-dimensional wireless passive sensor

Abstract

The present invention discloses an inter-dimension decoupling two-dimensional wireless passive sensor, the sensor comprises: an upper bearing joint, an upper universal joint rigid structure body, a first supporting sleeve, a second supporting sleeve, a bending component supporting circular plate, a lower universal joint rigid structure body, a torque structure supporting ring, a torque bearing body, a second convex block, a torque deformation piece, an axially curved rectangular deformation body, a lower bearing joint and a rigid tensile force transmitting body. The inter-dimension decouplingtwo-dimensional wireless passive sensor can simultaneously detect bending force component and torsion force component in coupling force, namely, structurally decoupling the coupling force; also does not need to be connected to a power supply line or collect data through a wired interface; and can be applied in the medical field, the direction of the human implanted sensor, greatly reducing the need for embedding wires in a human body or secondary surgery after the sensor is implanted into the human body.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to a two-dimensional wireless passive sensor with inter-dimensional decoupling. 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] Two-dimensional or even multi-dimensional force sensors in the prior art are mainly divided into resistance strain sensors, piezoelectric force sensors, and capacitive force sensors, which are simple in structure, sensitive and high in precision. The structure of the sensor is to paste or install the strain-sensitive ...

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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] Moreover, the existing two-dimensional / multi-dimensional sensors must use wires to connect the strain gauges, even if the information is transmitted by radio, the battery contains limited power, so it is difficult to achieve long-term dynamic monitoring

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