Immersible Diver's Microphone
Abstract
The patent application discloses a ceramic gradient microphone insensitive to mask cavity acoustics, essentially flat in pressure response to 10,000 Hz for use in deep submergence helium atmospheres, and capable of withstanding compression, decompression and intermittent flooding. In essence, there is provided a microphone having a diaphragm mounted to a bimorph ring and includes unique construction to provide improved frequency response and gradient characteristics, plus drainage characteristics.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 27, 1971
- Accession Number
- ADD001590
Entities
People
- Austin J. Brouns
- Charles T. Morrow
Organizations
- Office of Naval Research