Now showing items 1-6 of 6
A new surface acoustic wave imaging technique
(Springer, Boston, MA, 1986-07)
A new type of imaging technique is presented which incorporates focussed surface acoustic waves. Surface acoustic waves are generated on the surface to be imaged by use of conical wavefronts. The conical wavefronts are ...
Response of surface acoustic wave imaging systems to cylindrical inhomogeneities
The authors present a theory to predict the response of a SAW (surface acoustic wave) imaging system. In particular, they calculate the response to cylindrical cavities as a function of cavity position with respect to the ...
V(Z) of the surface acoustic wave focusing system
It is possible to define a V(Z) function for the surface acoustic wave (SAW) focusing system for a class of reflectors similar to that defined in acoustic microscopy. In this case V(Z) is a function which relates the ...
Use of a conical axicon as a surface acoustic wave focusing device
Ultrasonic axicons generate waves which focus on a line. They are used in various imaging applications as hulk wave focusing devices with a very long depth of focus. A new type of conical axicon is introduced. It consists ...
Penetration depth of the scanning acoustic microscope
A definition for the penetration depth of the scanning reflection acoustic microscope is given. With this definition it is possible to calculate the penetration depth of a given lens geometry for a given material. The ...
Imaging flaws close to surface using focused surface acoustic waves
The resolving power and detection ability of the focused surface acoustic wave (SAW) imaging modality is investigated in this paper. In this mode of imaging, conical bulk acoustic waves are used to generate and focus leaky ...