Title :
Acoustic microscopy with electronic scanning in one direction
Author :
Cheeke, J.D.N. ; Germain, L.
Author_Institution :
Dept. of Phys., Sherbrooke Univ., Que., Canada
Abstract :
A method for electronic scanning in acoustic microscopy and ultrasonic imaging is described. A wedge transducer is used to illuminate a standard cylindrical lens. As the resonant frequency of the transducer varies with position, it is possible to sweep the focal spot down the line by changing the frequency. A typical acoustic image is given as well as detailed considerations on the resolution of the device. Experimental results on reflection from a scattering object indicate that the effective excitation width in the transducer is the main effect controlling the resolution
Keywords :
acoustic microscopy; acoustic image; acoustic microscopy; effective excitation width; electronic scanning; position; reflection; resolution; resonant frequency; scattering object; standard cylindrical lens; ultrasonic imaging; wedge transducer; Acoustic devices; Acoustic reflection; Acoustic scattering; Acoustic transducers; Image resolution; Lenses; Resonant frequency; Scanning electron microscopy; Ultrasonic imaging; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1989. Proceedings., IEEE 1989
Conference_Location :
Montreal, Que.
DOI :
10.1109/ULTSYM.1989.67105
