MOLECULAR-ELECTRONIC HYDROPHONE WITH FEEDBACK BASED ON MAGNETOHYDRODYNAMIC EFFECT Russian patent published in 2019 - IPC H04R1/44 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment, in particular to methods of converting mechanical motion into an electrical signal. Molecular-electronic hydrophone with feedback consists of two chambers filled with conducting fluid and separated by membrane. In one of the chambers there is a molecular-electronic converting element, and one of the membranes limiting this chamber is in contact with the external medium. In the second chamber there is a two-electrode electrochemical cell and a constant magnetic field is formed, which is perpendicular to lines of current flowing between electrodes of the above cell. Hydrophone is designed so that the sensitivity of the hydrophone with feedback does not depend on hydrostatic pressure, and hence on the working depth of the hydrophone.

EFFECT: technical result is wider range of immersion depths.

5 cl, 2 dwg