A Computer Technique for Near-Field Analysis of an Ultrasonic Transducer.
Abstract
A computer technique for obtaining near-field cross-section views of an ultrasonic field is presented. The technique is applied to ultrasonic transducer radiation patterns with sample contour drawings of several cross-sections. A spatial frequency spectrum formulation of diffraction theory is chosen for the computations which are performed with the aid of a fast Fourier transform routine. By experimentation an actual ultrasonic field was generated using a quartz transducer and the field was measured in a cross-sectional plane. A computer generated drawing of the measured data is compared to the drawing of a computer generated prediction of the field at the same plane. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1973
- Accession Number
- AD0756537
Entities
People
- Carlton Albert Griggs
Organizations
- Naval Postgraduate School