FALLING ASH DETECTOR AND HOUSE EQUIPPED WITH FALLING ASH DETECTOR

PURPOSE:To obtain a falling ash detector for detecting the falling ash with high sensitivity in volcanic district. CONSTITUTION:A port 3 for introducing the outer air is opened upward through one side of a hood 2 and a discharge port 5 is opened through the other side thereof. A constricted part 8 h...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TOMIZONO TADASHI, FUKUOKA TOSHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED FISHING FORESTRY HORTICULTURE HUMAN NECESSITIES HUNTING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING TRAPPING WATERING
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a falling ash detector for detecting the falling ash with high sensitivity in volcanic district. CONSTITUTION:A port 3 for introducing the outer air is opened upward through one side of a hood 2 and a discharge port 5 is opened through the other side thereof. A constricted part 8 having reduced air supply cross-section area is formed between the introduction port 3 and the discharge port 5 and a light emission sensor 11 and a light receiving sensor are disposed at the constricted part 8. When a motor fan 7 is rotated, outer air is introduced through the introduction port 3 into the hood 2 and eventually discharged through the discharge port 5. The density of ash in the air is increased at the constricted part 8 and the ash is detected with high sensitivity by means of the light emission sensor 11 and the light receiving sensor.