Dual-mode self-validating resistance/Johnson noise thermometer system
Abstract
A dual-mode Johnson noise and DC resistance thermometer capable of use in control systems where prompt indications of temperature changes and long term accuracy are needed. A resistance-inductance-capacitance (RLC) tuned circuit produces a continuous voltage signal for Johnson noise temperature measurement. The RLC circuit provides a mean-squared noise voltage that depends only on the capacitance used and the temperature of the sensor. The sensor has four leads for simultaneous coupling to a noise signal processor and to a DC resistance signal processor.
- Inventors:
-
- Oak Ridge, TN
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 868864
- Patent Number(s):
- 5228780
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- dual-mode; self-validating; resistance; johnson; noise; thermometer; dc; capable; control; systems; prompt; indications; temperature; changes; term; accuracy; resistance-inductance-capacitance; rlc; tuned; circuit; produces; continuous; voltage; signal; measurement; provides; mean-squared; depends; capacitance; sensor; leads; simultaneous; coupling; processor; noise signal; circuit provides; control systems; johnson noise; temperature change; temperature changes; voltage signal; signal processor; temperature measurement; resistance thermometer; circuit produces; signal process; temperature measure; lc circuit; /374/
Citation Formats
Shepard, Robert L, Blalock, Theron V, and Roberts, Michael J. Dual-mode self-validating resistance/Johnson noise thermometer system. United States: N. p., 1993.
Web.
Shepard, Robert L, Blalock, Theron V, & Roberts, Michael J. Dual-mode self-validating resistance/Johnson noise thermometer system. United States.
Shepard, Robert L, Blalock, Theron V, and Roberts, Michael J. Fri .
"Dual-mode self-validating resistance/Johnson noise thermometer system". United States. https://www.osti.gov/servlets/purl/868864.
@article{osti_868864,
title = {Dual-mode self-validating resistance/Johnson noise thermometer system},
author = {Shepard, Robert L and Blalock, Theron V and Roberts, Michael J},
abstractNote = {A dual-mode Johnson noise and DC resistance thermometer capable of use in control systems where prompt indications of temperature changes and long term accuracy are needed. A resistance-inductance-capacitance (RLC) tuned circuit produces a continuous voltage signal for Johnson noise temperature measurement. The RLC circuit provides a mean-squared noise voltage that depends only on the capacitance used and the temperature of the sensor. The sensor has four leads for simultaneous coupling to a noise signal processor and to a DC resistance signal processor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}
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