Skip to Content
Find More Like This
Return to Search

Device and method for self-verifying temperature measurement and control

United States Patent

October 29, 2002
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A measuring instrument includes a first temperature sensor, a second temperature sensor and circuitry. The first and second temperature sensors each generate a signal indicative of the temperature of a medium being detected. The circuitry is configured to activate verification of temperature being sensed with the first sensor. According to one construction, the first temperature sensor comprises at least one thermocouple temperature sensor and the second temperature sensor comprises an optical temperature sensor, each sensor measuring temperature over the same range of temperature, but using a different physical phenomena. Also according to one construction, the circuitry comprises a computer configured to detect failure of one of the thermocouples by comparing temperature of the optical temperature sensor with each of the thermocouple temperature sensors. Even further, an output control signal is generated via a fuzzy inference machine and control apparatus.
Watkins; Arthur D. (Idaho Falls, ID), Cannon; Collins P. (Kearney, MO), Tolle; Charles R. (Idaho Falls, ID)
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
09/ 467,750
December 20, 1999
The United States Government has rights in this invention pursuant to Contract No. DE-AC 07-94ID13223 between the United States Department of Energy and Lock heed Martin Idaho Technologies Company.