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Acoustic Test Facility

Underwater acoustics is the corroboration technology for applications in underwater communication, navigation, geophysical surveying, sonar, topographic measurement and echo-sounding. In addition, knowledge of underwater acoustics and accurate measurements are essential for exploration of ocean and their resources.

Keeping this in mind a state-of-the-art Acoustic Test Facility (ATF) is established at NIOT to cater the needs of testing and calibration of marine instruments of NIOT and other National Research Laboratories, Institutes and Industries. Test facility consists of Acoustic Tank, Acoustic Calibration System (ACS) and Acoustic Transducer Positioning System (ATPS). Acoustic transducers are characterized using comparison calibration, reciprocity calibration and vibrating water column techniques. Acquired data can be processed through various analysis techniques such as FFT and spectrum analysis.

This facility has been accredited by “National Accreditation Board for Testing and Calibration Laboratories (NABL)” for testing and calibration parameters of underwater acoustic transducers as per ISO/IEC 17025:2005.


"Acoustic Test Facility (ATF) of National Institute of Ocean Technology (NIOT) is committed to maintain good professional practice to provide accurate and consistent results to the customer for testing / calibration of underwater acoustic transducers/ parameters in accordance with the International Standards.

All the laboratory personnel shall be well trained and familiar with the documentation to implement the policies and procedures. Each member of the staff shall be responsible for providing timely and reliable services to the customer's requirement.

ATF is committed to fulfil the requirements of quality management system and continually improve its effectiveness in line with the ISO /IEC 17025:2005."

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