Circuitry to monitor and control source of radiant energy in smoke detector

A photo-electric smoke detector includes a source of radiant energy (16b) and a closed loop control circuit (16) which responds to a radiant energy feedback signal to adjust an output characteristic of the emitted radiant energy (16c) and which evaluates a quality characteristic of the emitted radia...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	BOHANON, MARK C
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
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