Title :
Temperature compensation for ultrasonic characterisation of materials in situ
Author :
Gunarathne, G.P.P. ; Christidis, K.
Author_Institution :
Sch. of Electron. & Electr. Eng., Robert Gordon Univ., Aberdeen, UK
Abstract :
A major problem associated with quantitative ultrasound measurement in remote applications is the variability of environmental temperature affecting the characteristics of the signals received. In this paper, a practical approach to introduce temperature compensation against changes in amplitude of the received signals is presented. For this purpose, a temperature correction function applicable to most materials has been developed. The compensated ultrasonic signals can then be used to obtain the characteristic acoustic properties of the material, irrespective of environmental changes in temperature, extending the scope of ultrasonic testing and characterisation of materials in situ
Keywords :
acoustic signal processing; compensation; ultrasonic materials testing; ultrasonic measurement; characteristic acoustic properties; in situ US materials characterisation; quantitative ultrasound measurement; received signal amplitude changes; remote applications; temperature compensation; temperature correction function; ultrasonic testing; Acoustic materials; Feature extraction; Materials testing; Petroleum; Pipelines; Probes; Temperature; Ultrasonic imaging; Ultrasonic transducers; Ultrasonic variables measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928887
