There is an unusual installation for marine research on the Taganrog campus of SFU.
Construction of the unique hydroacoustic pool began in the 1970s. Previously, the department of ultrasound and medical technology (now electrohydroacoustic and medical technology (EGAiMT)) was located in building “B” of the Academy of Engineering and Technology. However, after building “E” was put into operation, the department moved to a new building, but the pool remained.
“This pool is part of the unique scientific installation “Imitation-full-scale hydroacoustic complex.” Students perform laboratory and practical classes here in a number of courses and areas. The guys measure the sensitivity of antennas and converters in emission and reception modes, directional characteristics and other parameters,” noted Pyotr Pivnev, Ph.D., Associate Professor of the Department of Electrohydroacoustic and Medical Equipment at INEP SFU .
The water in the pool has not changed for several decades. This is necessary to ensure uniformity of measurements. When the pool fills, the water begins to bloom and organic processes begin. After 1-2 months, flowering ends, after which the water becomes more or less stable.
The pool is lined with special sound-absorbing rubber, which prevents re-reflections of the acoustic signal, and also absorbs signals that fall on it in a certain frequency range.
“The depth of the pool is 2.5 meters. It stands on a special foundation, which provides acoustic isolation from the building and from external noise, trams, cars. Downstairs around the pool there is a basement to ensure functionality. The hydroacoustic pool is equipped with a rotating and retractable device for precise positioning of antennas and transducers during measurements,” added Pyotr Pivnev .
The auditorium also houses the Acoustics Design Bureau, where students in their free time engage in initiative developments and participate in projects carried out at the department. Using the equipment of the unique complex, postgraduate students and scientists from INEP SFU conduct research, which then forms the basis for candidate and doctoral dissertations on acoustics.
“We are carrying out a lot of contractual work – research and development work – on the development, manufacture and supply of equipment, in particular, for the navy. I can say that products with our hydroacoustic antennas ply all the seas of Russia. We participate in the development of surveillance and search hydroacoustic systems, such as parametric profilers, side-scan sonars, fish-finding sonars; we create antennas that are installed on underwater vehicles designed to explore the depths of the sea,” noted Pyotr Pivnev .
The applied application of nonlinear acoustics at the Department of Electrohydroacoustic and Medical Engineering is more developed than anyone else in the country. Faculty members regularly participate in sea expeditions. They have excavated the sunken ancient Greek cities of Acre and Korokondama in the Taman and Kerch region, searched for Napoleon’s treasure in Lake Semlyovskoe and the remains of William Barents’s caravel on Novaya Zemlya. Recently, young members of the department went on an expedition to study the bottom of the bay in the area of the Sos River not far from Dubna.
“In the future, a mooring wall will be built there for a research catamaran, which will be engaged in hydroacoustic reconnaissance. This project is carried out jointly with Skolkovo. The guys here, in addition to working with our standard equipment, used a new hydroacoustic locator, which was created with their direct participation. They also developed receiving and emitting paths, and calculated special forms of the emitted signal,” commented Pyotr Pivnev .
The Department of EGAiMT INEP closely cooperates with many structural isions of SFU, including: NKTB “Piezopribor”, NKKB TsOS, Institute of Earth Sciences and others. Together with INOZ, a project is being developed for a comprehensive study of the Black Sea in the area of the Limanchik base.
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