A SOLID-STATE ULTRASONIC IMAGE CONVERTER.
Abstract
Acoustical techniques can be used to obtain underwater images at distances greater than those currently obtained by optical means. Electronic scanning of a mosaic transducer at the focal plane of an acoustic lens enables target image reproduction on a cathode ray tube using intensity modulation. Previous work in developing the required amplifier and gating circuitry has resulted in systems with excessive cabling and of excessive size. This report is a study of the design of a 16-channel printed circuit board immediately adjacent to a linear transducer array so as to eliminate cabling. Microelectronic devices are used to confine all electronics to a 0.26 x 0.26 inch cross-section for each channel. A 32 x 32 element mosaic at 250 kHz could be scanned by a package no larger than 9x9x6 inches. A discussion of performance, size, and costs is included. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1968
- Accession Number
- AD0840257
Entities
People
- Robert Joseph Larkin
Organizations
- Naval Postgraduate School