Absolote encome resolution！

There are many reticle on the disk of absolute encoder , each groove successively with 2 lines, 4 lines, 8 lines, 16 lines. . . . . . Choreography, so that in every position of the encoder, by reading the engraved lines per channel through the dark, get a unique set of binary coded 2 ^ n-1 from zero to the power of 2's (Gray code), which is called n-bit absolute encoder. Such encoder is a mechanical encoder position determined, it is not a power outage, the impact of interference. Absolute encoder is determined by the mechanical position of the uniqueness of each location, without having to remember it, no need to find a reference point, and would not have to count, when you need to know where and when to go read its position. Thus, interference encoder properties, has greatly enhanced the reliability of the data.

Since the absolute encoder positioning clearly superior to incremental encoder, has been increasingly used in industrial targeting. Absolute encoders because of its high accuracy, the output bit more, if you still use parallel outputs, each of which an output signal of the need to ensure a good connection, but also for more complex conditions isolation, the number of multi-core cable connection, thereby inconvenience and reduced reliability, and therefore, the absolute encoder multi-bit output type, generally use the serial output or bus output, the German production of absolute encoder is the most common serial output SSI (synchronous serial line output).

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