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'Absolute' definition of absolute encoder

by:HENGXIANG     2020-11-26
Absolute value encoder of the definition of 'absolute' articles source: release time: 2018/11/21 hits: absolute value Angle encoder is important in the industrial machine location, length and speed feedback and participate in the control of sensors, rotary encoder value points incremental encoder, absolute encoder, absolute value encoder. Tell from the external receiving equipment ( Such as servo controller, PLC) , incremental value refers to A kind of relative location information of change, change from point A to point B in the signal of the increase and decrease of calculation, also known as the 'relative value', it requires continuous follow-up equipment count, because each time the data is not independent, but relies on the front of reading, on the previous data with power and interference produced by the error could not judge, causing the cumulative error; And the work pattern of 'absolute' refers to the equipment after the initialization, determine a origin, after the position information of all is the absolute position and the 'origin', it does not need further device of uninterrupted count, but directly read value, the current position for error caused power outages and interference, since each reading are independent is not affected by the previous, so as to not cause accumulated error, this is called 'absolute type' working mode of receiving equipment. For absolute value encoder within the definition of 'absolute', refers to the inside of the encoder all location value, after the encoder production factory, all position is within range of 'absolute' to determine within the encoder, after the initial origin, each location independence and uniqueness, its internal and external data refresh every time reading, don't rely on the previous data read, whether it is inside the encoder or encoder outside, there should be no 'count' and the previous reading of accumulative calculation, because the data is not 'independent' 'the one' 'range all position has been definitely established in advance', is not in line with the 'absolute' has the meaning of the word. So, the real definition of absolute encoder, is refers to the range of all position with that of the absolute origin position in advance, it is not dependent on the internal and external counter accumulative absolute encoding and independent. Shanghai electronic limited company is a professional sensor systems and accessories complete service supplier, the company currently production and agent products: rotary encoder, absolute encoder, incremental encoder, the magnetic grid ruler, close to switches, photoelectric sensor, the magnetostrictive displacement sensor, obliquity sensor, rope displacement sensor, speed switch, speed motor, reducer, coupling, pulley, chain, cables, controllers and related accessories and other products.
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