Miniature photoelectric sensing chamber

A low profile, low volume smoke chamber displaces a light source, such as a light emitting diode or laser diode, and a sensor, such as photodiode or phototransistor, to the exterior of the sensing volume. A symmetrical sensing volume results which can be coupled to symmetrical input/output ports via...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WATSON, KALVIN, SCHOENFELDER, GEORGE A, CONFORTI, FREDERICK J, PETROVICAGAN, SHOAFF, THOMAS W, WIEMEYER, JAMES F
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
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