D.B. Robinson Distinguished Speaker Series 2012-2013
Characterization of fluid properties under pressure by acoustic measurements
Direct measurements of thermophysical properties are difficult to perform in fluids under pressure. An interesting alternative consists in using acoustic measurements which can be carried out with a high degree of accuracy including at high pressure, and which presents the advantage of giving access to various derived properties. Acoustic sensors are conveniently small, very sensitive and capable of measuring a variety of input quantities depending on the wave mode and the configuration used. It is because of these far-reaching characteristics that acoustic sensors have been more and more used in fluid characterization. The objective of this presentation is to review the acoustic sensors principles and to present their capacities for measuring fluid properties under pressure.
Jean Luc Daridon was born in Cholet, France on August 1965. He received the diploma degree in Physics in 1988 and the Ph.D. in Physical Chemistry in 1992. From 1993 to 1998 he worked at the High Pressure Laboratory as an Associate Professor. Since 1999 he has been a Professor at the University of Pau. His research interests are the design and the manufacturing of experimental devices for characterizing the properties of complex fluids under high temperature and high pressure conditions. His current works focus on the application to piezoelectric materials for measuring the thermophysical properties of fluids under high pressure.