Solid-state anemometers and temperature gauges

Details Solid-state anemometers and temperature gauges Solid-state anemometers and temperature gauges

1987-04-17

1988-11-01

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Combined

7320418, 7320419, 7320423, 340627, G01F 168

Patent

active

047810653

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.

REFERENCES:
patent: 3268739 (1966-08-01), Dickson, Jr.
patent: 3420104 (1969-01-01), Troemel et al.
patent: 3624492 (1971-11-01), Nielsen
patent: 3895286 (1975-07-01), Steckler
patent: 3992940 (1976-11-01), Platzer, Jr.
patent: 4237451 (1980-12-01), Hollenbeck

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