Solid-state anemometers and temperature gauges
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United States of America Patent
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Nov 1, 1988
Issued Date -
N/A
app pub date -
Apr 17, 1987
filing date -
May 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A solid state temperature and/or anemometer measuring instrument for a fluid medium such as atmosphere the instrument including a pair of semi conductor junction means such as a zener diode one of which is exposed to fluid flow the other being isolated therefrom and providing outputs which are a function of the temperature of the fluid and a measuring device for measuring the respective outputs the differential being an indication of temperature or fluid speed. Such a device has specific application in an optical air pollution monitor to give a continuous indication of fluid flow thus ensuring that the monitor is sampling fresh batches of fluid from a monitored space.
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