Photosensitive resistance encoder based on mechanical subdivision and measuring method thereof

Abstract

The invention discloses a photosensitive resistance encoder based on mechanical subdivision, belonging to the field of an encoder; the photosensitive resistance encoder comprises a spindle; a driving wheel is fixed on the spindle; a driven wheel is equipped and connected with the driving wheel in a matching manner; the driven wheel is fixedly installed on a driven shaft and fixedly provided with a first laser source; a photosensitive resistance area array is located in front of the first laser source; an area array signal processing is connected with the photosensitive resistance area array; a second laser source is located in front of the driven wheel; and a driving wheel code value processing system is located behind the driving wheel. The invention further discloses a measuring method for the encoder. The encoding resolution ratio of the photosensitive resistance area array is subdivided in a mechanical transmission manner; the problem of high cost caused by too large size of the photosensitive resistance area array is solved, and meanwhile, the technical difficulty of the resolution ratio of the present encoder limited by a coded disc is also solved; and the resolution ratio of the encoder is improved greatly.

Description

technical field [0001] The invention relates to the field of encoders, in particular to a photosensitive resistance encoder based on mechanical subdivision and a measuring method thereof. Background technique [0002] In the production of modern manufacturing industry, higher and higher requirements are put forward for the precision of mechanical operation. The encoder is a key device that affects the accuracy of the mechanical operation. It feeds back the shaft position information to the control system during the movement of the mechanical shaft to achieve the purpose of accurately controlling the position and speed of the rotary motion of the shaft. [0003] There are two types of encoders: absolute and relative. The absolute encoder can reflect the position information of the mechanical shaft relative to the predetermined origin, while the relative encoder reflects the position information of the current axis relative to the previous axis. [0004] At present, many a...

AI Technical Summary

Problems solved by technology

Although this kind of encoder is simple in principle, reliable in operation and strong in anti-interference, the manufacturing process of the code disc is complicated, and the maximum number of code tracks and lines that can be engraved is also limited to a certain extent, which cannot meet the needs of ultra-high resolution processing and production. requirements

[0005] Chinese patent CN200710006964.7 discloses an encoder, the encoder is installed on a motor or a machine driven by a motor, and the encoder that detects position information or speed information can express various internal reasons and external reasons. Or the time-dependent change information of the encoder signal characteristic value caused by a long time, so as to obtain valuable information for fault prediction and to determine the cause of intermittent alarms, thereby improving the maintainability of the encoder; This technical solution mainly processes the signal output by the traditional encoder to improve the encoding effect, but it does not solve the technical problem that the resolution of the existing encoder is limited by the code disc

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