Depth Sensitive Mechanical Acoustic Signal Generating Device.
Abstract
A simple, mechanical device is provided which produces an acoustic signal at a specified depth. The device consists of a shear plug in an exterior wall of the device housing which prevents the movement of a spring biased piston. The plug is subjected to increasing differential pressure between the exterior and interior of the housing as the depth of the device beneath the water surface increases. At a known pressure differential, corresponding to a specified depth, the shear plug fails, allowing for the actuation of the piston. The spring biased piston strikes against a ledge in the device, creating the acoustic signal.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 17, 1999
- Accession Number
- ADD019431
Entities
People
- Edmund J. Sullivan
- Robert W. Gauthier
Organizations
- United States Department of the Navy