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A calibration model for screen-caged Peltier thermocouple psychrometers

Author(s):

Ray W. Brown

Year:

1982

Publication type:

Research Paper (RP)

Primary Station(s):

Rocky Mountain Research Station

Historical Station(s):

Intermountain Forest Experiment Station

Source:

Res. Pap. INT-293. Ogden, UT: US. Department of Agriculture, Forest Service, Intermountain Forest and Range Experimental Station. 155 p.

Description

A calibration model for screen-caged Peltier thermocouple psychrometers was developed that applies to a water potential range of 0 to-80 bars, over a temperature range of 0° to 40° C, and for cooling times of 15 to 60 seconds. In addition, the model corrects for the effects of temperature gradients over zero-offsets from -60 to + 60 microvolts. Complete details of model development are discussed, together with the theory of thermocouple psychrometers, and techniques of calibration and cleaning. Also, information for computer programing and tabular summaries of model characteristics are provided.

Citation

Brown, Ray W.; Bartos, Dale L. 1982. A calibration model for screen-caged Peltier thermocouple psychrometers. Res. Pap. INT-293. Ogden, UT: US. Department of Agriculture, Forest Service, Intermountain Forest and Range Experimental Station. 155 p.

Cited

Publication Notes

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
https://www.fs.usda.gov/treesearch/pubs/31297