Abstract
Mines installed into sea are a serious threat to navigation during wars or other un-certain conditions. During years mines have become quite sophisticated. Every ship passing through the water emits sound, disturbs the Earth's magnetic field, and causes fluctuations in water pressure. Mine clearing is important and challenging task. Sea mines react to stimulus of ships. Noise caused by ships is one of remarkable stimulus. Mines reacting to noise are tried to clear with acoustic mine clearing equipment. In order to image noise generated by different ships quite large frequency range is required. High frequencies (>100 Hz) can be achieved, for instance, with permanent magnet and magnetostrictive hydro-sounders. At low frequencies (≤60Hz) hydraulic hydro-sounder might be a reasonable solution. In this paper the preliminary design, modeling and experimental tests of hydraulic cylinder driven hydro-sounder are presented.
