Non-ringing phase responsive detector

Non-ringing phase responsive detector

A non-ringing circuit for detecting the presence of predetermined frequency components in input signals and for delivering an output signal when a predetermined component is dominant, the circuit employing plural tuned filters with different adjacent cross-over frequencies, and using coincidence det...

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Hauptverfasser: MAHIG, JOSEPH
Format: Patent
Sprache:eng
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MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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JOSEPH
description A non-ringing circuit for detecting the presence of predetermined frequency components in input signals and for delivering an output signal when a predetermined component is dominant, the circuit employing plural tuned filters with different adjacent cross-over frequencies, and using coincidence detectors connected to pairs of these filters in such a way as to detect when there exists a dominant frequency component having a frequency so located with respect to said cross-over frequencies that the relative phases of the signals fed to the coincidence detectors from the filters will produce phase coincidences therein, the circuit further using multiple different paired filters having staggered cross-over frequencies such that the tendencies of these filters to ring as a result of transient excitations will produce diverse and non-coincident ringing wave forms.
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Non-ringing phase responsive detector
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