Dew point instrument

Details Dew point instrument Dew point instrument

1978-10-05

1980-06-24

Goldstein, Herbert

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73 17A, 733365, G01N 2566

Patent

active

042089107

ABSTRACT:
A weather instrument for directly indicating dew point temperature of a given atmosphere. A sensing element responsive to relative humidity is connected to a first cam which interacts with a second cam for producing a continuous angular output corresponding to a predetermined function of the relative humidity (RH) of the ambient atmosphere. To the second cam is connected a sensing element responsive to ambient temperature (T) for producing a continuous angular output so as to directly indicate the dew point temperature (T.sub.D) of the ambient atmosphere according to the relationship T.sub.D =T+(a) log RH, "a" being a constant.

REFERENCES:
patent: 2444589 (1948-07-01), Anderson
patent: 2584989 (1952-02-01), Dember
patent: 3284003 (1966-11-01), Ciemochowski
patent: 3521488 (1970-07-01), Preiser et al.
patent: 3719810 (1973-03-01), Alquist et al.
patent: 3926052 (1975-12-01), Bechtel
patent: 4091992 (1978-05-01), Start
Cunningham "Noncircular Gears" reprint of article given 10/13-14/58 at 5th Conference on Mechanisms.

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