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The absolute value encoder code knowledge is introduced

by:HENGXIANG     2020-11-26
Source code knowledge introduction of absolute value encoder: release time: 2015/08/24 hits: also is a kind of encoder, is a brand of Italy, the absolute value encoder and incremental encoder is the main difference between them, and a method for determining the location of the different position of incremental encoder, starting from zero mark pulse, absolute encoder is through the readings to determine the output code, the encoder, the number of read each location is the only, or if the power off mobile position encoder, the encoder is still in the original position. But the power of the absolute value encoder to re-open the original value, will replace encoder and incremental encoder is need to set the zero mark, is the output of the code. So what is the absolute value of code? Encoder output is used when making the location of the code, but obviously will give preference to binary code, because the binary code is easier to be accepted by the external devices, but binary code from a rotary encoder direct access to above, the binary code can't sync output, because of the change of coding digits will be more than one. Two consecutive binary code, for example, from 5 to 6, all of the digits in the process has changed, that is if you read in this time of the coding, it is difficult to guarantee the accuracy of the data, because there is data in the data change in more than a change, so, gray code between two consecutive code only one digit to change. Absolute value encoder code through the combination of some simple circuit can be converted into a binary code. Gray code is one of the binary code, gray code and binary code is also different, sometimes, they are increasing the data differently, for each time increment, gray code is only a digit changes, so that technology and standard technology and methods are different, the order in which it would be changed, not in accordance with the standard way of counting to count. The advantages of gray code is in the transition to another state can avoid mistakes when, sometimes due to cable and capacitor will cause error, when using gray code will not appear this kind of circumstance. Encoder, there are many kinds of output way can meet the requirements of all electrical and electronic industry, the output of the encoder usually means there are NPN and NPN open collector. An open collector output is also an NPN transistor. NPN transistor leakage current can be to the public. In fact, it is also a switch, can after circuit carrying certain pressure is part is connected to the public. This means that if you want to have a power output work need. Power supply after the pressure must be connected to the output, otherwise the NPN transistor just established a to the public, is the dry contact. In this paper, from the Angle sensor ( qjcgq /) Reprint please indicate the source related: what are the advantages to buy Angle sensor of the matters needing attention in Shanghai to tell you what are the precautions for rotary encoder installed speed motor what are what are the classification of their respective characteristics
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