Broadband ultrasonic target strengths of hollow ceramic flotation spheres
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
Colleges, School and Institutes
- Department of Electronic, Electrical and Computer Engineering, University of Birmingham, Birmingham, B15 2TT, U.K.
- Woods Hole Oceanographic Institution
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.
|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||OCEANS 2007 - Europe|
|Period||18/06/07 → 21/06/07|