How does an encoder work?

How does an encoder work?First, let's learn about the metal encoder code plate:

The use of etching process production, its advantage lies in the need for mold, hole precision, vertical lines, no burr.

Conventional: 100/200/256/300/360/400/500/512/600/720/800/1000/1024/1200/2000/2048 pulse.

With the metal plate is generally: 100-1024 pulse, generally according to the outside diameter of the plate and the thickness of the metal material, can achieve 2048 pulse in CG.Above 2048 due to high accuracy, most of the glass code plate, but the glass plate concentricity, fragile, cost too high reason is far less than the metal code plate.(film disk can also be achieved, but considering that its stability, accuracy and service life is far less than that of metal and glass, it is not recommended to use).

Material selection of metal code plate: sus304 imported from Japan is generally used, with a thickness of 0.05/0.08/0.1/0.15/0.2, etc.

Requirements: CG general tolerance +-0.01mm, uniform aperture, no burr.

Encoder code board working principle:

By an intermediate shaft of light code disc, on which there are circular and dark scribed line, have read photoelectric emission and receiving devices, obtain four groups of sine wave signal is combined into A, B, C, D, each sine wave 90 degree phase difference (as opposed to A cycle of 360 degrees), will reverse, C, D signal superimposed on A, B two phase, can strengthen stability of signal;A Z phase pulse is output for each revolution to represent the zero reference bit.Since A and B are 90 degrees apart, the forward and backward rotation of the encoder can be determined by comparing the forward and backward rotation of the encoder by comparing the forward and backward rotation of the encoder by comparing the forward and backward rotation of the encoder by comparing the forward and backward rotation of the encoder by comparing the forward and backward rotation of the encoder by comparing the forward and backward rotation of the encoder by comparing the forward and backward rotation of the encoder.

Encoder code disc material with glass, metal, plastic, glass encoder is in the deposition of thin scribed line on the glass, its thermal stability, high precision, metal encoder directly to scribe lines and impassability, non-friable, but because has certain thickness of metal, precision is limited, its thermal stability is an order of magnitude worse than glass, plastic encoder is economical, its cost is low, but the accuracy and thermal stability, life is less.Resolution - the number of clear or dark lines provided by the encoder for each 360 degree of rotation is called resolution, also known as analytic indexing, or direct indexing, usually between 5 and 10,000 lines per revolution.

Encoder board is used for micro motor, photoelectric encoder, etc.The high precision of the encoder board produced by zolida makes it an excellent alternative to Japanese production.It is one of the characteristics of the encoder codebase that it is smooth and uniform without hairiness and the flatness is kept below 0.02.If you want to find the manufacturer of encoder board, please contact us. All staff of zolida will serve you wholeheartedly.National hotline: 0513-81601668.