PHOTO-ELECTRIC TYPE SMOKE SENSOR

PURPOSE:To improve the detecting sensitivity of smoke by preventing a light from being incoming to a photo detecting element when the smoke does not exist in a darkroom and decreasing a background noise. CONSTITUTION:For the light projected from a light emitting element 21 to a darkroom 13a, an irra...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TOKI AKIRA, NAKAO KOICHI, MORISUE KAZUNARI
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!