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Title: 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:
 [1];  [2];  [2]
  1. (Oak Ridge, TN)
  2. (Knoxville, TN)
Publication Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
868864
Patent Number(s):
US 5228780
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
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}
}

Patent:

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