An Introduction to Acoustical Holography
Since the first papers by E. N. Leith and J. Upatnieks on the subject of holography appeared in 1961, there has been a virtual explosion of research activity in the field. More than SOO papers and articles on holo graphy have appeared in the last ten years. Many applications of holo graphy have been proposed, and some of these are beginning to enter the realm of usefulness. One of the applications that appears to hold great promise is acoustic imaging by means of holography. The first papers on this subject appeared in 1966. but already research activity in the field is burgeoning. Tbree symposia whoUy devoted to acoustical holography have been held and tbe papers published in book form. The purpose of this book is to bring together the results of research in acoustical holography, some of it as yet unpublished, under one cover so that workers in holography, nondestructive testing, medical imaging, underwater imaging, and seismic exploration can decide whether this new technique can be useful to them.
What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
aberration acoustic field acoustic intensity acoustical hologram acoustical holography acoustical wave amplitude angle angular application array assume astigmatism Bragg Bragg angle Bragg diffraction Chapter conjugate image consider constant cos2 described detection detector discussed distance distortion electronic energy equations example expression Figure film Fourier transform Gabor Hankel transform holo hologram aperture illumination intensity interface interference pattern lens light source liquid surface longitudinal waves magnification method normal Note object sector obtain optical oscillator phase phase detector photograph photographic film plane wave point source propagation radiation pressure ratio reactor receiver scan reciprocal space reconstruction recording reference beam reflected resolution result ripple sampling function scan hologram scanning system shear waves shown in Fig signal sound field source and receiver spatial frequency spectrum spherical wave technique theory tion transducer transfer function true image ultrasonic ultrasound velocity wave front wavelength zero