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The study of pressure measurement techniques and devices in the range of 10(exp -1) to 10(exp -5) torr (2 millipsi to 0.2 micropsi)The atmospheric pressure range was studied in a region where conventional pressure sensing devices do not provide meaningful measurements. However, a hot filament gauge was developed and miniaturized which will measure the pressure in the 10(exp -1) to 10(exp -5) torr (2 millipsi to 0.2 micropsi) region, hence the name Micropsi gauge. Laboratory studies were made comparing the currently available devices with the newly developed miniature low power 'Micropsi' pressure sensor.
Document ID
19910002354
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Hoffman, John H. (Texas Univ. at Dallas Richardson, TX, United States)
Date Acquired
September 6, 2013
Publication Date
August 29, 1990
Subject Category
Aerodynamics
Report/Patent Number
NAS 1.26:186926
NASA-CR-186926
Accession Number
91N11667
Funding Number(s)
CONTRACT_GRANT: NAG1-989
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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