Title :
Long acoustic imaging probes
Author :
Jen, C.K. ; Neron, C. ; Adler, E.L. ; Farnell, G.W. ; Kushibiki, J. ; Abe, K.
Author_Institution :
IMI, Nat. Res. Council, Boucherville, Que., Canada
Abstract :
Theoretical considerations and experimental measurements on two long acoustic imaging probes are presented. One is a cladded glass rod and the other is a glass rod with a graded acoustic velocity profile across the rod diameter. The acoustic velocity profiles have been measured using a 225-MHz line focus beam scanning acoustic microscope. Spherical acoustic lenses have been fabricated at the ends of the rods. Focused and unfocused ultrasonic measurements obtained with these long buffer rods at ambient and elevated temperatures are demonstrated
Keywords :
acoustic imaging; acoustic microscopy; acoustic wave velocity measurement; ultrasonic materials testing; ultrasonic measurement; 225 MHz; NDE; acoustic velocity profiles; cladded glass rod; focused ultrasonic measurements; graded acoustic velocity profile; line focus beam scanning acoustic microscope; long acoustic imaging probes; spherical acoustic lenses; unfocused ultrasonic measurements; Acoustic beams; Acoustic imaging; Acoustic measurements; Focusing; Glass; Lenses; Microscopy; Probes; Ultrasonic variables measurement; Velocity measurement;
Conference_Titel :
Ultrasonics Symposium, 1990. Proceedings., IEEE 1990
Conference_Location :
Honolulu, HI
DOI :
10.1109/ULTSYM.1990.171489
