Abstract
A new underwater acoustics test and calibration center has recently been established in Cape Town, South Africa. With the 2.5 million liter main test tank measuring 20.2 × 11.2 × 11.2 m and a second tank measuring 20.7 × 3.5 × 4.2 m, the facility is amongst the largest in use today. Designed to meet the requirements of users involved in military, industrial, and research activities, the facilities incorporate some special features such as vibration isolation mounting of the tanks and the capability of supporting marine life for fisheries research. This paper presents details of this new facility and illustrates some interesting aspects of the design and construction of the tanks. The choice of instrumentation and signal processing techniques will be discussed as well as proposed methods for handling and positioning large transducers.
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