You are here

A calibration model for screen-caged Peltier thermocouple psychrometers

Posted date: November 05, 2008
Publication Year: 
1982
Authors: Brown, Ray W.; Bartos, Dale L.
Publication Series: 
Research Paper (RP)
Source: Res. Pap. INT-293. Ogden, UT: US. Department of Agriculture, Forest Service, Intermountain Forest and Range Experimental Station. 155 p.

Abstract

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.