How to exclude whether the encoder breakdown？！

Encoder also has good and bad, its size plate of the electronic circuit inside the chip signal output of the difference is very big, otherwise how have so big diference for a 1000 line of incremental encoder from 300 yuan to 3000 yuan .First remove (leaving interference sources, close, isolation), 2, Determine whether to mechanical clearance accumulated error.3,  determine whether to control system and the encoder interface circuit mismatch (wrong encoder) 4,Afrer exluding 1,2,3 methods breakdwon phenomenon ,can preliminary judgment, it needs further analysis if do not have been ruled out.

The sample way of interpretation the encoder itself breakdown is the exclusion.Now changchun roundss encoder to mass production, production technology has been mature, product failure rate control in a few  per thousand.Deduction of the specific method is: use the same model encoder to replace the encoder, if the failure phenomenon is same, but the basic rule out the failure problem of encoder, because two encoders have defective with small probability events may be very small, can be considered to 0.If,  in a same idea encoder, immediately eliminate the failure phenomenon, so the basic judgement is encoder failure thought at the same time there is two encoder failure of small aim-listed probability events may be small.

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