INVESTIGATION OF THE BOUNDARY CONDITIONS APPLICABLE TO UNDERWATER, AIR-BACKED FLEXIBLE-DIAPHRAGM TRANSDUCERS.
Abstract
The operation of the MYLAR electrostatic transducer used as a transmitter is studied theoretically and experimentally. A development is made of the mathematical solutions necessary to map the near field patterns generated by a constant velocity circular piston set on an infinite baffle and also a constant pressure piston in the same circumstances. Boundary conditions applicable to the MYLAR piston are postulated based on equivalent circuits which allow investigation of the theoretical behaviors of the transducer. The postulated boundary conditions are then experimentally investigated. It is shown that an underwater, air-backed, flexible diaphragm transducer very closely approximates a 'constant pressure' source. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1968
- Accession Number
- AD0838790
Entities
People
- Toby Gene Warson
Organizations
- Naval Postgraduate School