Angle measuring method based on wireless power transmission and electromagnetic induction

Abstract

The invention discloses an angle measuring method based on wireless power transmission and electromagnetic induction. A single chip microcomputer generates a high-frequency square wave signal; the high-frequency square wave signal is processed by a high-frequency square wave signal amplification circuit and a high-frequency square wave signal filter circuit and then is irradiated to a rotor circuit in an electromagnetic wave mode; the rotor circuit receives supplied energy to supply power to a chip in the circuit and generates a low-frequency sinusoidal signal; a transmission alternating current signal is generated and irradiated to a stator circuit after the low-frequency sinusoidal signal is processed; the stator circuit generates a first-stage angle information signal, an angle alternating current signal is obtained after the first-stage angle information signal is rectified, and after the angle alternating current signal is transmitted to a single-chip microcomputer and processed, information of the angle between a rotor and a stator is obtained. The angle measuring method based on wireless power transmission and electromagnetic induction is high in measurement accuracy, low in cost, convenient to install, maintain and manage, and low in requirement for environment. Tasks can be completed accurately, stably and rapidly as long as people do not work in a strong-magnetic environment, and the angle measuring method is reliable, accurate, low in cost and the like.

Description

technical field [0001] The patent of the present invention relates to an angle measurement method of an angle sensor, in particular to an angle measurement method based on wireless power transmission and electromagnetic induction. Background technique [0002] As an important basic component in the motor, the angle sensor occupies an important position in many industries with great strategic significance. In the high-efficiency and energy-saving industry, an important way to realize the high-efficiency internal combustion engine is to precisely control the throttle valve for fuel and air input; in the high-end equipment manufacturing industry, the aviation turbine engine and control system require precise control of the motor rotation angle, intelligent manufacturing equipment industry The new sensor technology is listed as the focus of development in the first article, which is related to the realization of multi-dimensional precision machine tools; in the new energy automo...

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Problems solved by technology

However, the sensor generally has strict requirements on the environment in which it is used. A little dust entering the grating will bring fatal damage to the sensor, and the vibration resistance is also poor. The requirements for installation are very high, and a small deviation will cause Make the sensor not work properly, and it is expensive, not available to ordinary people and businesses

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