September 14, 2013
A standard edge sensing scheme for optical rotary encoders is to square up the raw analog sine wave by comparing it against a given voltage. If your analog signal has a 2Vpp amplitude, the value at which you switch off of, creating the edges of your square waves, could be...
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...
May 13, 2013
May 4, 2013
May 1, 2013
“What resolution of rotary encoder do I need?” is a question designers often ask themselves. A common mistake is that a higher resolution is always better. This may or may not be the case. Ultimately it is the nature of the application that decides. Here are some things to take...
April 27, 2013
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