Title: Ultrasonic High Temperature Sensors - Past Experiments and Prospects for future Use
Authors: LAURIE MathiasMAGALLON DanielREMPE J.WILKINS C.PIERRE J.MARQUIE CEYMERY SMORICE R
Citation: INTERNATIONAL JOURNAL OF THERMOPHYSICS vol. 31 no. 8-9 p. 1417-1427
Publisher: SPRINGER/PLENUM PUBLISHERS
Publication Year: 2010
JRC Publication N°: JRC63241
ISSN: 0195-928X
URI: http://www.springerlink.com/content/w2315328677vk258/
http://publications.jrc.ec.europa.eu/repository/handle/JRC63241
DOI: 10.1007/s10765-010-0791-z
Type: Articles in Journals
Abstract: Ultrasonic thermometry sensors (UTS) have been intensively studied in the past to measure temperatures from 2080 to 3380 K. This sensor, which uses the temperature dependence of 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 paper 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.
JRC Institute:Institute for Energy and Transport

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