High-precision and high-reflection encoder disc encoder disc optical encoder disc

A code disc is a digital encoder that measures angular displacement. It has the advantages of strong resolution, high measurement accuracy and reliable operation. It is one of the most commonly used displacement sensors and is used to measure the position of the shaft rotation angle. There are two types of code discs: absolute encoder and incremental encoder. The former can directly give the digital code corresponding to the angular position; the latter uses the calculation system to make the pulse increment generated by the rotating code disc add or subtract a certain reference number.

Dongguan Hongcheng Optical Products Co., Ltd. Encoder code disc materials include glass, film, and metal. The glass code disc is corroded on the surface of chrome-plated glass, with light and dark code tracks, good thermal stability, high precision, not easy to break, and high cost. Limited, its thermal stability is an order of magnitude worse than that of metal code disc glass; film code disc is economical, low in cost, not easy to break and deform, but its accuracy, thermal stability and service life are poor. The process of resin code disc and glass code disc is similar. It also etches the chrome layer on the light and dark resin surface to reveal light and dark pulses. It has high precision and is not easy to break. The disadvantage is that it is easy to skip codes in harsh environments and high temperatures. The price is relatively high and the processing technology is difficult.

Glass code disc: incremental & reflective code disc

Film code wheel: transmissive & reflective code wheel

metal code disc

technical parameter

Code size: 5-300mm

Minimum reticle: 1um

thickness:1 mm 2 mm 2.3 mm 3 mm 4.8 mm

Accuracy: photolithography version 1um etching version 3um

Hongcheng OpticalThe coating material is resistant to acid and alkali, and its wear resistance is more than 3 times that of ordinary materials

The content of the code board drawing is as follows:

1. Need to attach materials

2. Accuracy

3. Dimensions, tolerances, thickness

4. Making renderings: classification of positive and negative boards. (If you consider the price factor, you need to emphasize how many times you need to magnify below to see the flaws)

5. It is necessary to provide detailed CAD drawings (it is best not to draw scale drawings). The above is the complete information for making the calibration board

Hongcheng Optics can provide glass, film, metal, provide samples, and can customize conventional pulse line pairs of 256 lines, 500 lines, 1000 lines, 2400 lines, 3600 lines, 5000 lines, etc.

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contact us

Contact: Linda Chen (Foreign Trade Manager)

Phone/WeChat/Whatsapp/Line/Skype +86 13580812583

Fax: +86-0769-23064224

URL: www.hongchengot.com