ROEKDETEKTOR MED EN PULSSTYRT STRAALINGSKILDE

A smoke detector contains a pulse-operated radiation source and a radiation receiver arranged externally of the region directly irradiated by the radiation source. The radiation receiver, in the presence of smoke in the radiation region, is impinged by scattered radiation and delivers output pulses....

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GUETTINGER, HEINZ, MUGGLI, JUERG
Format:	Patent
Sprache:	nor
Schlagworte:	ALARM SYSTEMS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS TESTING
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