Deep water acoustic calibration facility: Development of a platform

© 2016 IEEE.Acoustic systems are used widely to provide quantitative estimates of biomass for fisheries and ecosystem assessments. Traditionally, these systems are attached to surface vessels, but increasingly they are being fitted to remote operated vehicles, autonomous vehicles and towed platforms...

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Main Authors: Malan, J., Marouchos, A., Sherlock, M., Ryan, T., Kloser, Rudy
Format: Conference Paper
Published: 2016
Online Access:http://hdl.handle.net/20.500.11937/52834
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author Malan, J.
Marouchos, A.
Sherlock, M.
Ryan, T.
Kloser, Rudy
author_facet Malan, J.
Marouchos, A.
Sherlock, M.
Ryan, T.
Kloser, Rudy
author_sort Malan, J.
building Curtin Institutional Repository
collection Online Access
description © 2016 IEEE.Acoustic systems are used widely to provide quantitative estimates of biomass for fisheries and ecosystem assessments. Traditionally, these systems are attached to surface vessels, but increasingly they are being fitted to remote operated vehicles, autonomous vehicles and towed platforms. These platforms allow the acoustic transducer to get closer to targets, and provide increased resolution and, if calibrated, better accuracy of surveys at depth. To achieve better accuracy requires regular and methodical calibration of acoustic transducers at depth using calibration targets of a known acoustic signature. Standard methods exist for calibrating such systems just below the surface, but calibrating such systems at their operating depths is far more difficult. A bespoke system was necessary to allow scientists and technicians to calibrate acoustic transducers at their operating depths to quantify their characteristics and performance. This paper will discuss the design, development and testing of a DEepwater CAlibration Facility (DECAF). The design challenges are presented along with a discussion of difficulties in the operation of such a system.
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spelling curtin-20.500.11937-528342017-09-13T15:39:04Z Deep water acoustic calibration facility: Development of a platform Malan, J. Marouchos, A. Sherlock, M. Ryan, T. Kloser, Rudy © 2016 IEEE.Acoustic systems are used widely to provide quantitative estimates of biomass for fisheries and ecosystem assessments. Traditionally, these systems are attached to surface vessels, but increasingly they are being fitted to remote operated vehicles, autonomous vehicles and towed platforms. These platforms allow the acoustic transducer to get closer to targets, and provide increased resolution and, if calibrated, better accuracy of surveys at depth. To achieve better accuracy requires regular and methodical calibration of acoustic transducers at depth using calibration targets of a known acoustic signature. Standard methods exist for calibrating such systems just below the surface, but calibrating such systems at their operating depths is far more difficult. A bespoke system was necessary to allow scientists and technicians to calibrate acoustic transducers at their operating depths to quantify their characteristics and performance. This paper will discuss the design, development and testing of a DEepwater CAlibration Facility (DECAF). The design challenges are presented along with a discussion of difficulties in the operation of such a system. 2016 Conference Paper http://hdl.handle.net/20.500.11937/52834 10.1109/OCEANSAP.2016.7485398 restricted
spellingShingle Malan, J.
Marouchos, A.
Sherlock, M.
Ryan, T.
Kloser, Rudy
Deep water acoustic calibration facility: Development of a platform
title Deep water acoustic calibration facility: Development of a platform
title_full Deep water acoustic calibration facility: Development of a platform
title_fullStr Deep water acoustic calibration facility: Development of a platform
title_full_unstemmed Deep water acoustic calibration facility: Development of a platform
title_short Deep water acoustic calibration facility: Development of a platform
title_sort deep water acoustic calibration facility: development of a platform
url http://hdl.handle.net/20.500.11937/52834