Optics Lens

The advantages and disadvantages of absolute rotary encoder

by:HENGXIANG     2020-11-07
Absolute rotary encoder because of the uniqueness of each location point output signal, make its have resistance to dry resistance, can preserve the characteristics of the memory when the power is cut off and is widely used, absolute rotary encoder electronics today to tell you about the working principle and advantages and disadvantages. Working principle of the absolute value of absolute rotary encoder rotary encoder optical encoder, there are many light channel scribed line, every groove in turn in lines to 2, 4, 8, 16 line arrangement, so, in every position of encoder, by reading each groove and the dark, get a set of zero power from 2 to the n - 2 The only 2 hexadecimal codes (1 to the power Gray code) , this is called a n a absolute encoder. The encoder is determined by the mechanical position of the light code disc, it is not affected by power outages, interference. Absolute rotary encoder is determined by mechanical position of each position is unique, it does not need memory, don't need to find a reference point, and don't always count, when you need to know, when to go to read it. In this way, the anti-interference characteristics of the encoder, the reliability of data greatly improved. Absolute rotary encoder advantages: 1. Because for absolute Angle measurement data, and can also be stored in power, when to restore power, can save the recovery of trouble; 2. With digital output, the Angle of rotation by disturbance data disorder. Absolute rotary encoder faults: resolution can't through the follow-up circuit to improve Shanghai electronic professional manufacture rotary encoder manufacturers, the absolute value of research and development production rotary encoder is widely used in radio sound mixers microwave washing machine and so on audio electronic products, 25 years old factory, experienced, reliable, and trustworthy!
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