An electro-mechanical acoustic imaging scanner assembly.

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.

Department dc:contributor.department

Engineering Acoustics

Grantor dc:publisher

Monterey, California ; Naval Postgraduate School

Year dc:date.issued

1970

Author dc:creator

• Pearson, John Davis

Language dc:language.iso

en_US

Handle dc:identifier.uri

https://hdl.handle.net/10945/14984

OAI identifier oai:identifier

oai:calhoun.nps.edu:10945/14984