Sonic Transducer.
Abstract
A sonic transducer device for vibrating windows and glass partitions in the human ear sensitivity range to prevent the capture of conversation by placing an interfering vibration on the windows or glass partitions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 25, 1980
- Accession Number
- ADD007806
Entities
People
- Jerry W. Hagood
- Ralph L. Norman
Organizations
- United States Army