Trout&trade IV Brand
Seismic Streamer
Towed Hydrophone Array Sonars
Standard Trout&trade IV
Array Modules
Optional Trout&trade IV
Array Modules
Ultra High Strength
Aramid
Fibre Core
Hydrophone Assembly
and Testing
Trout&trade IV Module
Molding Operations
Copyright 1999
- 2011
"Trout"
is a Trademark of Marschall Acoustics Pty. Ltd.
All
information and photographs on this
site are the property of the
Marschall
Acoustics Group
Australia
Inner Mold
Each Trout module uses two shielded piezo-plastic hydrophones in a differential pair. Shown here is the innermost molding. At this stage of production, the module is already completely waterproof to in excess of 100 meters. Acoustic/vibrational insulators at the end of the hydrophones keep bulge waves and TBL noise associated with the electromechanical cable out of the hydrophones. Internal carbon fibre stress isolators prevent dilitational and extensional wave induced noises.
The production of a one kilometer long Trout towed hydrophone array requires a manufacturing space roughly equivalent to a standard four car garage - not acres of expensive real estate! Fancy offices with chandeliers, aquariums, and indoor tropical garden atriums may be nice to visit, but they don't contribute anything to YOUR operation or bottom line.
Hydrodynamic Housing
The outer
molding operation forms the hydrodynamically shaped Trout module.
The module shape has been carefully designed to minimize turbulent
boundary layer pressures near the hydrophone surfaces.
