Measuring instruments of speed of sound in liquids

摘要

The invention relates to metrology and measurement equipment and may be used in sonar for measuring sound velocity in liquid at the liquid temperature change. The meter is a device comprising fixed on the general basis reversible acoustic transducer and a reflector spaced from the transmitter at a predetermined base region, and connected to a transducer recording and data processing system, wherein as materials of a base of the reflector and acoustic transducer using materials whose coefficients linear expansion satisfy the condition α ₁ α ₂ and α ₁ α _3, and the linear dimensions of the base and the reflector along the radiation I at given base distance determined by the following relationship; Where; L - length of the base, P ₁ - length of the reflector, P ₂ - length of the acoustic transducer, t - temperature difference, A - base distance, α _1, α ₂ and α ₃ - coefficients of linear expansion of the materials of a base of the reflector and the acoustic transducer, respectively.