Particulate detector

Particulate detector

An apparatus and method are provided for detecting presence in gas of transient particulate above its normal zero or acceptable level within a duct ( 4 ), said apparatus comprising at least one emitter ( 2 ) of illumination selected from infra-red, ultraviolet and visible radiation capable of being...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WILLIAMS LEONARD FREDERICK GEORGE, BANN JOHN RICHARD, SIDDONS JEREMY FRANCIS, HARRIS NIGEL EDWARD
Format: Patent
Sprache:eng
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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Beschreibung
Zusammenfassung:An apparatus and method are provided for detecting presence in gas of transient particulate above its normal zero or acceptable level within a duct ( 4 ), said apparatus comprising at least one emitter ( 2 ) of illumination selected from infra-red, ultraviolet and visible radiation capable of being projected over essentially the entire cross section of the duct ( 4 ) and at least one detector ( 8, 18, 25 ) for detecting any sparkle of the illumination from the particulate. The apparatus and method are in particular useful for detecting monitoring particulate in areas where build up or presence of particulate can be disadvantageous, for example hospitals and electricity generating stations.