Rotating angle measuring method and device

Abstract

The invention provides a rotating angle measuring device. By arranging a detecting module, rotating arc length data 1 of any point on a detected rotating body are directly or indirectly obtained, anda data processing module connected with the detecting module is arranged and used for calculating rotating angle data n and central angle radian data theta of the detected rotating body according to an arc length formula. The rotating angle measuring device is simple and feasible in structure, the technology of all constituting components is mature, and the components can be rapidly developed andput into a market for use. In addition, the device is wide in application range, high in precision and easy and convenient to mount and operate, and further has the excellent characteristics of beingsmall in size, low in weight, capable of achieving quick response and the like. In addition, the invention further provides a rotating angle measuring method.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a method and device for measuring a rotation angle. Background technique [0002] Disclaimer: Throughout this specification, any discussion of background art should in no way be considered an acknowledgment that such art is well known, or forms part of the common general knowledge in the art. [0003] Angle measuring device (angle sensor) is an important device used in many fields such as instrument measurement, industrial automation and aviation and navigation. In the measurement and control system, it is often necessary to use an angle sensor to collect various angle parameters or to measure the rotation speed, the number of rotations or the rotation angle and the change of the rotation speed of the rotation mechanism. In the rotation measurement and control of various compact machines, high-resolution and high-precision angle sensors are required. In the field of aviation an...

AI Technical Summary

Problems solved by technology

Among them, the potentiometer angle sensor mainly has the problems of easy wear of the contacts, stepped output characteristics, low resolution, and high cost.

[0005] However, the encoder disc and grating angle sensors mainly have problems such as large volume and mass, complex follow-up measurement circuits, and high cost, and the encoder disc angle sensor is affected by factors such as the engraved line of the code disc, the installation of the shaft, and the electrical response. It is difficult to achieve second-level resolution, which cannot meet the angle measurement needs of many precision servo control systems or VR game controller systems for high precision and fast response.

[0006] Electromagnetic angle sensors mainly have problems such as large volume, large mass, low precision, small application range, and high cost. They are mainly used in larger industrial machinery, but not suitable for small or micro devices with small volume and light weight. angle measurement

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