SIGNAL PROCESSORS UTILIZING TUNEABLE BAND-PASS FILTERS AND TRIGGER CIRCUITS

摘要

Abstract of the DisclosureDescribed are signal processors for measuringthe flow rate of fluid. These processors incorporate variouscombinations of a unique tuneable bandpass filter, which relyon variable rate integration, and unique trigger circuitswhich trigger on the change of signal slope. Also describedare a spectrum analyzer and oscillators which employ thetuneable bandpass filter.