An electro-mechanical acoustic imaging scanner assembly.
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Authors
Pearson, John Davis
Subjects
Advisors
Date of Issue
1970-12
Date
Publisher
Monterey, California ; Naval Postgraduate School
Language
en_US
Abstract
The design of "a combined electro-mechanical acoustic
image scanning assembly is described. Various acoustic
imaging system techniques have demonstrated an ability to
form underwater images at distances greater than those
obtained by optical means. The scanning assembly -utilizes a sixteen element linear
transducer array mounted on the radius of an eight inch
diameter circle at the focal plane of an acoustic lens.
The line array is rotated at a constant speed of 400 RPM.
Acoustic signals at 250 KHZ of approximately 26 db re 1 ubar
at the transducers were sufficient to produce satisfactory
detection.
Type
Thesis
Description
Series/Report No
Department
Engineering Acoustics
Organization
Naval Postgraduate School