Self-powered electromagnetic motion perception sensor

Abstract

The invention discloses a self-powered electromagnetic motion perception sensor which comprises a magnetic block, a flexible connector, a conductive coil, a bottom base and a high-precision direct-current voltmeter. The magnetic block is fixed on the bottom base through the flexible connecting body, and the conductive coil is also fixed on the bottom base and connected with the high-precision direct-current voltmeter through a wire. The bottom base of the sensor is fixed to the head of the robot, and when the robot moves, the magnetic block on the sensor transmits inertia force through the flexible connecting body, so that relative swing is achieved, and a variable magnetic field is generated. And the conductive coil at the bottom can generate induced voltage, the change direction of the magnetic block and the change of relative displacement can be known according to the relative magnitude of the voltage, and the change of the motion state of the measured object can be known. The sensor is simple in structure, good in stability, wide in application range, capable of achieving self-energizing and detecting the motion state of the robot in real time, low in cost and good in practicability, and all materials are industrialized materials.

Description

technical field [0001] The invention relates to a self-powered electromagnetic motion sensing sensor, which belongs to the fields of electromagnetic technology and acceleration sensors. It uses the principle of electromagnetic induction. When the state of the object under test changes, the difference in the transmission speed of the force converts mechanical energy into electrical energy and outputs a differential electrical signal to detect the motion state of the object under test. Background technique [0002] With the development of science and technology, people have higher and higher requirements for robot assistance in life and work, including sanitation and cleaning, handling of heavy objects, construction in dangerous places, complex and precise assembly work, etc. This not only requires the robot to be able to achieve complex and robust movements, but also requires it to be able to adapt to the surrounding environment, so this puts forward high requirements for the...

AI Technical Summary

Problems solved by technology

Although a series of researches on accelerometers such as MEMS have been carried out in the gait research of robots, more research and development and investment are still needed for accelerometers for robot sensing, such as head perception and energy supply issues

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