Measurement device for measuring of air pressure, particularly f

Details Measurement device for measuring of air pressure, particularly f Measurement device for measuring of air pressure, particularly f

1986-08-20

1988-02-16

Woodiel, Donald O.

Measuring and testing

Barometer

73702, G01L 710, G01L 900

Patent

active

047247070

ABSTRACT:
The invention refers to a measurement device for measuring air pressure by means of a pressure sensor that can be excited to natural oscillations. In order to eliminate the influence of relative humidity on the air pressure to be measured, it is suggested that a humidity sensor be used, preferably in the form of a condensor with a humidity sensitive polymer as a dielectric, and that the identified pressure values be corrected for the influence of the humidity.

REFERENCES:
patent: 3842676 (1974-10-01), Brown et al.
patent: 3902355 (1975-09-01), Weisser
patent: 3958459 (1976-05-01), Shimomura
patent: 4000652 (1977-01-01), Wiklund
patent: 4319487 (1982-03-01), Haase et al.
patent: 4638664 (1987-01-01), Tamura
Halbleiter-Dehnungsmesstreifen--Eine Obersicht, Teil II, ATM--Archiv fur technisches Messen, #4, 1984, pp. 71-74.
Prazisionssensor fur Differenzdruck durch iterztiven Mikrocomputeralgorithmus, Technisches Messen tm, 1985, pp. 292-298.
Analytische Darstellung des Umwandlungsverhaltens von DMS-Kraftmesswandlern, Feingeratetechnik 26. Jg. Heft 4, 1977, pp. 154-155.

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