METHOD FOR MANUFACTURING OF MOLECULAR-ELECTRONIC CELL OF LOW-NOISE WIDEBAND HYDROPHONE FOR BOTTOM INVESTIGATIONS Russian patent published in 2019 - IPC G01V1/16 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measuring equipment. Invention is a modified molecular-electronic cell for a hydrophone, operating on general principles of molecular-electronic conversion, characterized by that the hydrodynamic resistance of the molecular-electron cell is determined from the condition of finding the minimum of the integral of the spectral power density of intrinsic noise in the operating frequency band. Invention reduces standard dimensions and weight of hydrophone, considerably reduces inertial mass of used electrolyte, allows the molecular-electronic hydrophone to reach the level of intrinsic noise, on order of 0.03 mPa, in units of the applied pressure, to expand towards the low frequencies the working band of the hydrophone up to 0.01 Hz. Invention has the following application prospects: stationary high-precision measurement systems for search and exploration of minerals in transit zones, bottom seismic and acoustic receivers, scientific research of the world ocean, military and civil applications in navigation and location of underwater situation, system of early warning of tsunamis and earthquakes, etc.

EFFECT: disclosed method of making a molecular-electronic cell for a hydrophone enables to measure weak low-frequency seismic and acoustic signals propagating in liquid, solid and gaseous media.

4 cl, 9 dwg