DocumentCode
2981142
Title
High voltage isolation of thermocouples for ion plating
Author
Duncan, Michel G.
Author_Institution
Martin Marietta Energy Syst. Inc., Oak Ridge, TN, USA
fYear
1988
fDate
11-13 Apr 1988
Firstpage
511
Lastpage
514
Abstract
Instrumentation has been developed to isolate part thermocouples from ground by up to 10.6 kV during ion plating. A fiber-optic link provides signal isolation and errors of better than ±0.5% of full scale (485°C with type-K thermocouples). Cold-junction compensation and signal gain are provided. A computer interface to the analog output is connected to a thermocouple linearizer, maximum temperature alarm, and current-loop converter. A digital panel meter displays the temperature
Keywords
fibre optic sensors; ion plating; optical links; temperature measurement; thermocouples; 10.6 kV; 485°C; cold-junction compensation; current-loop converter; digital panel meter; fiber-optic link; ion plating; isolation amplifier; maximum temperature alarm; part thermocouples; signal gain; signal isolation; thermocouple linearizer; type-K thermocouples; Instruments; Optical fiber amplifiers; Optical fiber devices; Optical receivers; Optical switches; Optical transmitters; Protection; Stimulated emission; Temperature measurement; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Southeastcon '88., IEEE Conference Proceedings
Conference_Location
Knoxville, TN
Type
conf
DOI
10.1109/SECON.1988.194907
Filename
194907
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