Liquid State Electromagnetic Transducer.

In the study, a magnetic field is applied normally to a duct which contains an electrically conducting fluid. Electrodes are placed on two of the duct walls which lie parallel to the magnetic field. An electric current conducted through the fluid produces pressure, and the fluid velocity produces an electrical potential across the electrodes. This principle is applied and investigated for the development of a new type of underwater transducer. A theoretical model of the liquid state electromagnetic transducer is obtained from magnetohydrodynamic equations, which is provided in the form of three-port equations and electrical-acoustical equivalent circuits.