Trout IV: Towed Hydrophone Array Final Testing and Acoustic Calibration

Trout&trade IV Brand Seismic Streamer Towed Hydrophone Array Sonars Applications Standard Trout&trade IV Array Modules Optional Trout&trade IV Array Modules Deckbox System Ultra High Strength Aramid Fibre Core Hydrophone Assembly and Testing Array Electronics Trout&trade IV Module Molding Operations Factory Testing Customers HOME Products and Services Contact Details Copyright 1999 - 2011 "Trout" is a Trademark of Marschall Acoustics Pty Limited. All information and photographs on this site are the property of the Marschall Acoustics Group Australia
		After the final molding operation, the sensitivity and fidelity of each group is checked using air acoustic calibration boxes. At the centre right of the photograph is the light gray Head-of-Array Module (HAM). The HAM is used for power conditioning/RF filtering and is a different color than modules with acoustic sensors.

		Measured sensitivities are within +/- 1dB of results predicted by MAI's finite element models!

		Air acoustic calibration boxes ensonify the entire Trout module uniformly. A small hole between the loudspeakers permits the use of calibrated measurement microphone and sound level measuring equipment in accordance with AS1259.1-1990 and IEC651-1979.