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Rotary encoder used will be influenced by the environment?

by:HENGXIANG     2020-11-04
Rotary encoder is a kind of precision electronic components, and its use will be affected by the environment, so how do we know when a rotary encoder failure is affected by the environment or the encoder is broken? In many cases, the encoder is good, but the cause of interference, cause bad wave type, lead to inaccurate count. How to judge? Around the encoder is precision components, mainly because the encoder interference is more serious, such as whether there is a large motor, electric welding machine start frequently cause interference, and whether to have the same power line pipe. What kind of output against interference is also very important to choose, the general output with reverse signal anti-jamming is better, namely A + to A - ~,B + B - ,Z +~Z- , its characteristic lies in the power line 8, rather than 5 lines ( The total zero) 。 In symmetry in the cable transmission, with reverse signal interference is small, can also add judgment in equipment ( Such as receiving device through the use of A signal, signal phase difference of 90 B & deg; , read,11,01 level 10, 00 four state, as an effective pulse, the program can effectively improve the anti-jamming performance ( Accurate counts) ) 。 Encoder is good or bad, the code chip internal circuit signal output difference is very big, or 1000 line incremental encoder how big gap from 300 yuan to 3000 yuan? ( Do not include close, leave the interference sources, isolation) Determine if the mechanical clearance error is a third, to determine the interface circuit control system and the encoder ( Whether the encoder and selection error does not match) ; Troubleshooting phenomenon of compensation method, after testing can conduct a preliminary judgment, if do not rule out further analysis. Is the simple method to determine whether the encoder failure elimination method. Mass production, now our company produces the encoder technology has matured, the product failure rate control in a few parts per thousand. The specific method is: elimination method with the same type of encoder replace, if the same failure phenomenon, the basic rule is encoder failure problems, due to the small probability events and two encoder failure can be very small, we can see as 0. If the switch to the same type of encoder, immediately ruled out fault phenomenon, you can determine the basic encoder failure. Shanghai electronic products is 27 years old, encoder manufacturers, specializing in the production of various kinds of rotary encoder, research and development production of magnetoelectric rotary encoder used in robot, automatic production lines, automatic assembly machine, elevator, textile machinery, sewing machinery, packaging and printing machinery, CNC machine tools, mapper and Angle measuring instrument, etc. This encoder is also can be in PLC application as the high speed signal input element, make PLC more quickly and accurately implement the closed-loop control. Looking for a rotary encoder manufacturer is looking for electronic.
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