DocumentCode
985527
Title
High precision, rapid readout of cryogenic temperature sensors in the Space Shuttle environment
Author
Woodhouse, Christopher E.
Author_Institution
NASA/Goddard Space Flight Center, Greenbelt, MD, USA
Volume
39
Issue
1
fYear
1990
fDate
2/1/1990 12:00:00 AM
Firstpage
279
Lastpage
284
Abstract
A compact and rugged system designed to perform four-wire determination of the resistance of germanium resistance thermometers (GRT) near 1 K to one part in 65000 in 1 s using 20-nW excitation is described. Constraints unique to cryogenic aerospace systems are addressed. A microcomputer-controlled, hybrid analog/digital design is presented. Test results are presented, and future developments are discussed
Keywords
aerospace instrumentation; computerised instrumentation; electric sensing devices; elemental semiconductors; germanium; low-temperature techniques; microcomputer applications; resistance thermometers; 1 K; Ge; Space Shuttle; cryogenic aerospace systems; cryogenic temperature sensors; hybrid analog/digital design; microcomputer controlled instrumentation; resistance thermometers; Cryogenics; Detectors; Extraterrestrial measurements; Germanium; Helium; Immune system; Space shuttles; Temperature measurement; Temperature sensors; Thermal resistance;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.50456
Filename
50456
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