Signal processing method for motion sensor output - measuring maximum and minimum sensor signal values for each signal period and comparing with previously stored values

摘要

The method of processing signals from motion sensors involves defining the maximum and minimum values of the acquired signal during each signal period and processing these to represent the motion. The extreme values for each period are stored and the useful signal formed from a comparison of the stored values with the extreme values of the current measurement signal. The signals can be stored in capacitors and the charging current pulses used to control a bistable flip-flop. A self-regulating amplifier stage is connected before the signal processing stage. USE/ADVANTAGE - For sensor detecting markings, which may contain scratches or irregularities.Eliminates overload effects.