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Material process customization scheme of encoder encoder disk.

Code disk (encoding disk) is a digital encoder for measuring angular displacement. It has the advantages of strong resolution, high measurement accuracy and reliable work, so it is one of the most commonly used displacement sensors for measuring shaft rotation position. The code disk is divided into absolute encoder and incremental encoder, the former can directly give the digital code corresponding to the angular position, and the latter uses the calculation system to add and subtract the pulse increment generated by the rotating code disk to a certain reference number.



The encoder code disk of Dongguan Hongcheng Optical products Co., Ltd. is made of glass, film, metal and glass code disk, which is etched out of light and shade code channel on the chrome plated surface of glass, which has good thermal stability, high precision, fragile and high cost. The metal code disk is not easy to break because it is not easy to be etched and engraved, but because the metal is not easy to corrode and deform, the accuracy is limited, its thermal stability is an order of magnitude worse than that of glass. The film code disk is economical, its cost is low, it is not easy to break and deform, but its accuracy, thermal stability and service life are poor; the high-end code disk in the market is mainly glass code disk.



Glass encoder: incremental absolute reflective encoder.



Film code disk: transmission code disk reflective code disk.



Metal code plate.



Glass materials-technical parameters.

Base material.

Float glass ultra-white glass.

K9 glass.

Tiniest linewidth.

1um.

Thickness.

1.0 / 1.1 / 2-3-4.

Line precision.

±0.25um.

Pulse number.

Unlimited / drawing customization / sample processing.

Inside and outside diameter.

5-300mm.

Hongcheng optical coating material has acid and alkali resistance, and its wear resistance is more than 3 times that of ordinary materials.

Film code disk-technical parameters.

Base material.

Polycarbonate (PC).

Accuracy of inner diameter.

±0.05mm.

Thickness.

0.18mm.

Precision of outer diameter.

±0.1mm.

Opaque / transparent ratio.

≤ 0.005 mm.

Code channel concentricity.

≤ 0.1 mm.

True roundness of code track.

≤ 0.05mm.

Stamping burr.

≤ 0.2 mm.



Glass concentric 0.03mm.

The contents of the code plate drawings are as follows:

1. Materials need to be attached.

two。. Precision.

3. Dimensional tolerances, thickness.

4. Production effect drawings: the difference between positive and negative plates. (if you consider the price factor, you need to emphasize how many multiples are allowed to see the defects below).

5. Need to provide detailed CAD drawings (it is best not to draw scale drawings). The above is the complete information of the calibration board.



Can provide glass, film, metal samples can be customized conventional pulse line pair 256line, 500line. 1000 line, 2400 line, 3600 line, 5000 line, etc.