CLUTCH FOR ATTACHMENT OF INTAKING HYDROACOUSTIC SYSTEMS AT THEIR CALIBRATION Russian patent published in 2009 - IPC G01S7/521 H01Q1/00 

FIELD: physics.

SUBSTANCE: invention concerns hydroacoustics area, in particular, to measurement of parametres of transceiving aerials of hydroacoustic systems of vertical sondage. The clutch contains calibrated hydroacoustic aerial (1), exemplary hydroacoustic target (2), hydroacoustic radiator (3), gauge (4), three tightening pads (6) allocated on rotary device (5) forming a 120° angle and interfaced among themselves by means of bolts (14) and inserts (8, 9). Pinholes in the inserts are executed in such a manner that the pinholes are based in inserts (8) allocated from edge of pads (6), and are carving in inserts (9) allocated in an average part of pads (6). Each tightening pad (6) contains arrow (10) from a profile and auxiliary L-bar (11) jointed, with rotation possibility about the axis with above-mentioned inserts (8, 9) on which the marking lines combined with the lines on measured block (7) of plate (12) are available, which has moving and installation possibility on arrow (6). Based L-bar (13) is fixed on a plate. Each based L-bar is mounted with possibility of the limited turn on hinges (15) which axes of rotary device (5) are parallel. There are directing ledges (16) in interface places on tightening pads (6) in the bottom part.

EFFECT: increase of reliability of device fastening and improvement of conditions of installation under water.

7 dwg