Ultrasonic High-Temperature Sensors: Past Experiments and Prospects for Future Use

Ultrasonic thermometry sensors (UTS) have been intensively studied in the past to measure temperatures from 2080 K to 3380 K. This sensor, which uses the temperature dependence of the acoustic velocity in materials, was developed for experiments in extreme environments. Its major advantages, which a...

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Bibliographic Details
Published in:International journal of thermophysics 2010-09, Vol.31 (8-9), p.1417-1427
Main Authors: Laurie, M., Magallon, D., Rempe, J., Wilkins, C., Pierre, J., Marquié, C., Eymery, S., Morice, R.
Format: Article
Language:English
Subjects:
ACCIDENTS
ACOUSTICS
Classical Mechanics
Condensed Matter Physics
Fuel testing
Harsh environment
High temperature irradiation
Industrial Chemistry/Chemical Engineering
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
IRRADIATION
MELTING POINTS
MONITORING
Nuclear engineering
NUCLEAR FUELS
Nuclear safety
On-line systems
Physical Chemistry
Physics
Physics and Astronomy
RELIABILITY
Robustness
SAFETY
Sensors
Severe accident experiment
TEMPERATURE DEPENDENCE
Ultrasonic Thermometer
ULTRASONIC WAVES
VELOCITY
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Summary:Ultrasonic thermometry sensors (UTS) have been intensively studied in the past to measure temperatures from 2080 K to 3380 K. This sensor, which uses the temperature dependence of the acoustic velocity in materials, was developed for experiments in extreme environments. Its major advantages, which are (a) capability of measuring a temperature profile from multiple sensors on a single probe and (b) measurement near the sensor material melting point, can be of great interest when dealing with on-line monitoring of high-temperature safety tests. Ultrasonic techniques were successfully applied in several severe accident related experiments. With new developments of alternative materials, this instrument may be used in a wide range of experimental areas where robustness and compactness are required. Long-term irradiation experiments of nuclear fuel to extremely high burn-ups could benefit from this previous experience. After an overview of UTS technology, this article summarizes experimental work performed to improve the reliability of these sensors. The various designs, advantages, and drawbacks are outlined and future prospects for long-term high-temperature irradiation experiments are discussed.
ISSN:0195-928X
1572-9567
DOI:10.1007/s10765-010-0791-z