SP-100 W/Re thermocouple calibration techniques [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: Pages: (9 pages) : digital, PDF file
Additional Creators: Westinghouse Electric Corporation, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

The accuracy requirement of the SP-100 Temperature Sensor Program for the reference tungsten/rhenium metal-sheathed thermocouple sensor is {plus minus}1.4% of the reading (in Kelvin) at space reactor operating temperature (nominally 1375 K) over the operating life of the reactor. This is a stringent requirement considering that the as-fabricated base wire limits of error'' are generally specified at roughly {plus minus}1.0% for exposure temperatures above 700 K. Although the thermocouples will be located out of the reactor's neutron field so that irradiation decalibration is expected to be negligible, thermal exposure effects will probably cause the thermocouple to drift out of specification during the 10-yr reactor operating life. A plan to accurately quantify thermocouple drift with aging time, and thus provide on-board calibration for the sensor is described.

Report Numbers

E 1.99:whc-sa-1258
E 1.99: conf-920423--3
conf-920423--3
whc-sa-1258

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Note

Published through SciTech Connect.
01/01/1992.
"whc-sa-1258"
" conf-920423--3"
"DE92011302"
7. international symposium on temperature: its measurement and control in science and industry, Toronto (Canada), 28 Apr - 1 May 1992.
Knight, R.C.; Cannon, N.S.

Funding Information

AC06-87RL10930

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