Broadband ultrasonic target strengths of hollow ceramic flotation spheres
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
Authors
Colleges, School and Institutes
External organisations
- Department of Electronic, Electrical and Computer Engineering, University of Birmingham, Birmingham, B15 2TT, U.K.
- IEEE
- Woods Hole Oceanographic Institution
Abstract
The target strengths of hollow ceramic flotation spheres manufactured by DeepSea Power and Light, Inc., and tested to a pressure equivalent of 12,000 m have been measured as a function of frequency over the bands 10-150 kHz. The spheres are made of alumina, purity 99.9%, with diameter 91.44 ± 0.2 mm, nominal thickness 1.3 mm, mass 140 ± 1 g. The target strength spectra have also been calculated theoretically assuming a mass density of 3.984 g/cm3, longitudinal- and transverse-wave sound speeds of 11000 and 6510 m/s, respectively. Measurements and computations are compared. Potential applications of the sphere as a standard acoustic target are noted.
Details
| Original language | English |
|---|---|
| Title of host publication | OCEANS 2007 - Europe |
| Publication status | Published - 2007 |
| Event | OCEANS 2007 - Europe - Aberdeen, Scotland, United Kingdom Duration: 18 Jun 2007 → 21 Jun 2007 |
Conference
| Conference | OCEANS 2007 - Europe |
|---|---|
| Country | United Kingdom |
| City | Aberdeen, Scotland |
| Period | 18/06/07 → 21/06/07 |