Detector for abnormal phenomena

摘要

The detector comprises a transducer designed to convert to an electrical signal a physical quantity which is representative of an abnormal phenomenon. The output of the transducer is connected to one input of a comparator whose output is connected to a delay circuit. The output of the delay circuit controls a signal generator, the output of which is connected to the other input of the comparator, the signal delivered by the comparator being representative of the time-dependent variations of the signal delivered by the transducer.