What is Hysteresis and how is it used in optical encoders?
Here are a few definitions of the word “hysteresis” I found online: From Sensorland.com Hysteresis – Non-uniqueness in the relationship between two variables as a parameter increases or decreases. Also called deadband, or that portion of a system’s response where a change in input does not produce a change in output. . From Wikipedia A system with hysteresis can be summarized as a system that may be in any number of states, independent of the inputs to the system. To be exact, a system with hysteresis exhibits path-dependence, or “rate-independent memory”[citation needed]. By contrast, consider a deterministic system with classical dynamics but no Hysteresis. In that case, one can predict the output of the system at some instant in time, given only the input to the system at that instant. If the system has hysteresis, then this is not the case; one cannot predict the output without looking at the history of the input, i.e., the state of the system for a given input. In order to predict
