DEVICE FOR ESTIMATING CHARACTERISTIC OF DIRECTION OF HYDRO-ACOUSTIC EMITTER (VARIANTS) Russian patent published in 2006 - IPC H04R29/00 

FIELD: hydro-acoustics, possible use for express estimation of characteristic of direction of hydro-acoustic emitter.

SUBSTANCE: in accordance to first variant of manufacture, in front of hydro-acoustic emitter, hydro-acoustic receiver is positioned, made in form of grid of sound-sensitive elements. The latter is in its turn made in form of object filament coil of wave-optical interference meter, supporting filament coil of which is mounted also in liquid, but outside the emission field of hydro-acoustic emitter. Also, device additionally has position indicator of hydro-acoustic emitter and electronic circuit for separating maximal input signal with increase in distance between hydro-acoustic receiver and hydro-acoustic emitter. It occurs during filling of all cells of hydro-acoustic receiver with radiation field of hydro-acoustic emitter. Knowing the theory of experiment, estimation of opening angle of main petal of characteristic of direction of hydro-acoustic emitter is performed. In accordance to second variant of device manufacture, in additionally includes hydro-acoustic receiver scanner in grid plane. When at output of interference meter signal appears with scanning frequency of hydro-acoustic receiver in process of approach of hydro-acoustic emitter and hydro-acoustic receiver, estimation of thin structure of characteristic of direction of hydro-acoustic emitter is performed, i.e. presence of additional petals within complete characteristic of direction of hydro-acoustic emitter.

EFFECT: removed flaws of prototype, simplified construction.

2 cl, 4 dwg