Device for self-verifying temperature measurement and control
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.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC07-94ID13223
- Assignee:
- Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
- Patent Number(s):
- 6,772,085
- Application Number:
- 10/242,937
- OSTI ID:
- 1174972
- Country of Publication:
- United States
- Language:
- English
Smart Sensor Application to Nuclear Plant Thermocouple Channels
|
book | January 1988 |
Checking resistance thermometers under working conditions without demounting
|
journal | June 1984 |
Similar Records
Engineered Barrier Testing at the INEEL Engineered Barriers Test Facility: FY-1997 and FY-1999
Device for controlling the idling operation of an internal combustion engine