A Single Element Cantilever Mounted Shear Wave Transducer.
Abstract
The present invention relates to a single element cantilever-mounted acoustic transducer for measuring shear wave attenuation in sediments. Such a transducer takes advantage of the transverse vibration of a piezoceramic bimorph element mounted as a cantilever on a heavy slug. A gasket material between the slug and an inner holding tube assists in avoiding the propagation of undesirable compressional wave energy into transmission medium surrounding the transducer. Electrical isolation is achieved by wrapping the inner tube with a ground shield to which the ground wire is attached. A second layer of gasket material between the inner and an outer tube further inhibits the propagation of compressional wave energy into the transmission medium. A flexible potting compound seals the open end of the tubes including the bimorph element and serves as the active face of the transducer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 11, 1981
- Accession Number
- ADD008601
Entities
People
- Burlie A. Brunson
Organizations
- United States Department of the Navy