A solid-state ultrasonic image converter
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Authors
Larkin, Robert Joseph
Subjects
Advisors
Sackman, George L.
Date of Issue
1968-06
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
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.
Type
Thesis
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Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.