Device for creating a reference humidity

Details Device for creating a reference humidity Device for creating a reference humidity

2008-07-08

2008-07-08

Jiang, Chen-Wen (Department: 3744)

Refrigeration

Automatic control

Humidity sensor

C261S128000, C261S135000, C261S156000

Reexamination Certificate

active

07395673

ABSTRACT:
A device for creating a reference humidity that includes a saturation chamber and a condensate cooler in fluid communication with the saturation chamber and arranged downstream of the saturation chamber, wherein the condensate cooler is a fin-type condenser whose arrangement is such that substantially horizontal gas flow through the condensation cooler results. A measuring chamber connected with the condensate cooler, in which a desired reference humidity is definitely set by varying pressures and/or temperatures.

REFERENCES:
patent: 3854909 (1974-12-01), Hoisington et al.
patent: 4618462 (1986-10-01), Fisher
patent: 6299147 (2001-10-01), Mitter
patent: 6863268 (2005-03-01), Zhang
patent: 2002/0121103 (2002-09-01), Udobot et al.
patent: 0 989 373 (1999-03-01), None
Greenspan, L., “Functional Equations for the Enhancement Factors for CO2—Free Moist Air,” Journal of Research of the National Bureau of Standards—A. Physics and Chemistry, vol. 80A, No. 1, Jan.-Feb. 1976, pp. 41-44. USA.
Hasegawa, S. et al., “The NBS Two-Pressure Humidity Generator, Mark 2,” Journal of Research of the National Bureau of Standards—A. Physics and Chemisty, vol. 81A, No. 1, Jan.-Feb. 1977, pp. 81-88. USA.
Scholz, G., “A Standard Calibrator for Air Hygrometers,” Bulletin OIML, No. 97, Dec. 1984, pp. 18-27. USA.
Sonntag, D., “Important New Values of the Physical Constant of 1986, Vapour Pressure Formulations Based on the ITS-90, and Psychrometer Formulae,” Z. Meteorol., vol. 70, No. 5, 1990, pp. 340-344. USA.
Hardy, B., “ITS-90 Formulations for Vapor Pressure, Frostpoint Temperature, Dewpoint Temperature, and Enhancement Factors in the Range −100 to +100C,” Third International Symposium on Humidity and Moisture, 1998, pp. 214-221. USA.

Affiliated with

Also associated with

Rating

Device for creating a reference humidity does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for creating a reference humidity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for creating a reference humidity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2779294