Hunan Code Disc Manufacturers: Tell me about the working principle of the encoder code wheel

The advantages of etching production and manufacturing are no die-out, high precision punching, vertical wire frame and no burrs.

There are basically: 100/200/256/300/360/400/500/512/600/720/800/1000/1024/1200/2000/2048 and other single pulses.

The code disc made of metal materials is generally 100-1024 single pulses, which are generally determined according to the diameter of the code disc and the thickness of the metal composite material. In CG, 2048 single pulses can be achieved. Due to the high precision above 2048, most of them use laminated glass code discs, but laminated glass code discs are far inferior to metal code discs because of their coaxiality, easy breakage and high cost. (Screen printing screen code plate can be achieved, but considering its reliability, precision and service life is far less than metal materials and glass, it is not recommended).

Metal material code plate selection: generally use sus304 raw materials imported from Japan, thin and thick 0.05/0.08/0.1/0.15/0.2, etc.

Provisions: CG basic tolerance -0.01mm, well-proportioned diameter position, no burrs.

hunan code disc manufacturer: encoder code disc principle

An optical code wheel with a shaft in the middle, a ring-shaped through and dark scale on the base, and optical transmitting and receiving components are loaded to obtain four groups of sine wave signals A, B, C and D. Each sine wave is separated by a phase angle of 90 degrees (360 degrees compared with a cycle). The C and D data signals are accumulated in the opposite direction on the and B phases to improve the stable data signals; another single Z-phase pulse is derived per revolution to mean the zero reference bit. Because the two phases A and B are 90 degrees apart, the inversion and flip of the encoder can be distinguished by whether phase A is in front or phase B is in front. According to the zero-bit single pulse, the zero-bit reference bit of the encoder can be obtained.

The raw materials of the encoder code disc include laminated glass, metal material and plastic. The laminated glass code disc needs to accumulate very thin scales on the glass, which has good heat resistance and high accuracy. The metal code disc is only marked by passage and blockage and is not easy to break. However, due to the certain thickness of the metal material, the precision will be limited, and its heat resistance needs to be an order of magnitude lower than that of glass. The plastic code disc is economical and practical, its cost is low, but its precision, heat resistance and service life are poor. Screen resolution-the number of passes or dark scales given by the encoder per 360 degrees of rotation is called screen resolution, also known as analytical measurement range, or directly called how many lines, generally in the measurement range of 5~10000 lines per rotation.

Encoder code disc is mainly used for micro motor, optical encoder, etc. The high accuracy of the encoder code disc manufactured by Zhuolida is the current high-quality choice to replace Japanese manufacturing. One of the characteristics of the encoder encoder is that it is neat and symmetrical without burrs and its flatness is maintained below 0.02.

Hunan code plate manufacturer: if you need the above encoder, code plate remember to consult our company.