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Heat-Flux Sensor For Hot Engine CylindersHeat-flux sensor includes buried wire thermocouple and thin-film surface thermocouple, made of platinum and platinum with 13 percent rhodium. Sensor intended for use in ceramic-insulated, low-heat-rejection diesel engine at temperatures of about 1,000 K. Thermocouple junction resists environment in cylinder of advanced high-temperature diesel engine created by depositing overlapping films of Pt and 0.87 Pt/0.13 Rh on iron plug. Plug also contains internal thermocouple.
Document ID
19890000356
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Kim, Walter S. (NASA Lewis Research Center, Cleveland, OH.)
Barrows, Richard F. (NASA Lewis Research Center, Cleveland, OH.)
Smith, Floyd A. (NASA Lewis Research Center, Cleveland, OH.)
Koch, John (NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 14, 2013
Publication Date
July 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 7
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
LEW-14830
Accession Number
89B10356
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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