STUDY OF UNDERWATER SOUND PROJECTORS.
Abstract
The report describes the progress made in the investigation of the performance of acoustic projectors of the inverse pinch configuration. The work was mainly of a preliminary nature and consisted of designing and setting up the equipment, making it operational, and developing and proving experimental procedures. Preliminary data obtained to date indicate certain characteristics of these underwater discharges. The pressure pulse has two distinctive wave shapes, the cause of which is presently under study. On comparing experimentally this device against a conventional two button electrode configuration, it was found that under identical conditions of electrode spacing and stored energy in the capacitor bank the pressure pulse from the inverse pinch configuration was about 2-1/2 times stronger than that from the button discharge at the same distance. The switch in its present non-optimized configuration delivers approximately 130 db referred to microbar at 1 yard. The pressure varies inversely as the distance from the source for both electrode geometries.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1965
- Accession Number
- AD0648217