June 29, 2014
Which Encoder Wires Should I Use to Begin Understanding Incremental Encoder Signals? Channels A & B (Incremental Channels) Use only A (or only B) for an RPM or counting applications where the rotation is either unidirectional, or where you don’t need to know direction. Use A and B together to...
June 10, 2013
Since most electronics are set up to have high input impedance, in some situations the addition of a loading or “termination” resistor can help to reduce interference from electrical noise. This can be of particular help when implementing an incremental encoder where there is a long cable run. If the...
March 2, 2013
Encoder Electrical Structure The internal electrical structure of the QDI series of encoders consists of a photo interrupted light source that is picked up by a common mode photo detector array. “Common mode” means that there are two channels that are at exact opposite states in any position. The advantage...
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