Location

La Jolla, CA

Start Date

1979 12:00 AM

Description

Acoustic imaging may be accomplished by a process involving the measurement of the amplitude and phase of the wavefront at a remote region and then the reconstruction, using mathematical techniques, of the fields at or near the scattering region. Since the system is coherent, both amplitude and phase images may be obtained. The current system under study employs pulsed CW tone bursts in order to reduce stray echo problems, with quadrature phase detection followed by a digital hardware processor for implementing the reconstruction algorithm. Finally, the image is processed for display and analysis.

Book Title

Proceedings of the ARPA/AFML Review of Progress in Quantitative NDE

Chapter

12. Techniques for Flaw Reconstruction Using Short Wavelengths

Pages

469-472

Language

en

File Format

application/pdf

Share

COinS
 
Jan 1st, 12:00 AM

Acoustic Imaging and Image Processing by Wavefront Reconstruction Techniques

La Jolla, CA

Acoustic imaging may be accomplished by a process involving the measurement of the amplitude and phase of the wavefront at a remote region and then the reconstruction, using mathematical techniques, of the fields at or near the scattering region. Since the system is coherent, both amplitude and phase images may be obtained. The current system under study employs pulsed CW tone bursts in order to reduce stray echo problems, with quadrature phase detection followed by a digital hardware processor for implementing the reconstruction algorithm. Finally, the image is processed for display and analysis.