Title :
NDE of interfaces in the tube geometry with piezofilm transducers
Author :
Hsu, David K. ; Zhang, Zhong
Author_Institution :
Ames. Lab., Iowa State Univ., Ames, IA, USA
Abstract :
Polyvinylidene fluoride (PVDF) transducers are used in the evaluation of interfaces in coaxially extruded Zirconium-Zircaloy tubes and the clamping condition of Nitinol couplers over stainless steel tubing. A detailed description of the evaluation interface in a Zirconium-Zircaloy tube, on which the same transducer was used both as the transmitter and the receiver, is given. The multiple echo signals were analyzed and reflection coefficients as small as 0.006 were accurately measured. Comparisons are made with the measurement results of conventional transducers
Keywords :
nickel alloys; piezoelectric transducers; stainless steel; titanium alloys; ultrasonic materials testing; zirconium; zirconium alloys; Nitinol couplers; PVDF transducers; US NDE; Zr-Zircaloy tubes; clamping condition; interfaces; multiple echo signals; piezofilm transducers; reflection coefficients; stainless steel tubing; tube geometry; Acoustic measurements; Acoustic transducers; Coaxial components; Couplers; Geometry; Impedance; Piezoelectric transducers; Ultrasonic transducers; Ultrasonic variables measurement; Zirconium;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234067
