Document Detail


Design and development of a micro-thermocouple sensor for determining temperature and relative humidity patterns within an airstream.
MedLine Citation:
PMID:  2486366     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This paper describes the production and calibration of a miniature psychrometer treated with a specially developed porous coating. The investigation was conducted to determine localized patterns of rapidly changing temperature and relative humidity in dynamic flowing gas environments (e.g., with particular attention to future applications to the human respiratory system). The technique involved the use of dry miniature thermocouples and wetted miniature thermocouples coated with boron nitride to act as a wicking material. A precision humidity generator was developed for calibrating the psychrometer. It was found that, in most cases, the measured and expected (i.e., theoretically predicted) relative humidity agreed to within 0.5 to 1.0 percent relative humidity. Procedures that would decrease this discrepancy even further were pinpointed, and advantages of using the miniature psychrometer were assessed.
Authors:
A D Eisner; T B Martonen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of biomechanical engineering     Volume:  111     ISSN:  0148-0731     ISO Abbreviation:  J Biomech Eng     Publication Date:  1989 Nov 
Date Detail:
Created Date:  1991-01-29     Completed Date:  1991-01-29     Revised Date:  2000-12-18    
Medline Journal Info:
Nlm Unique ID:  7909584     Medline TA:  J Biomech Eng     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  283-7     Citation Subset:  IM    
Affiliation:
NSI Technology Services Corporation, Environmental Sciences, Research Triangle Park, NC 27709.
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MeSH Terms
Descriptor/Qualifier:
Air / analysis*
Air Movements
Calibration
Equipment Design
Humidity*
Temperature*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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