Smoke detector including ambient temperature compensation
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United States of America Patent
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-
Jun 25, 1996
Grant Date -
N/A
app pub date -
Mar 29, 1994
filing date -
Mar 31, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A smoke type fire detector accurately detects a smoke density even when an internal temperature thereof changes. An internal temperature detecting unit detects an ambient temperature at a light emitting element and a light receiving element. A correction coefficient having a value associated with the ambient temperature detected by the temperature detecting unit is used to correct an output level of the light receiving element.
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Cited Art Landscape
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