DEVICE FOR MEASURING SHIP'S HEAVING MOTION Russian patent published in 2004 - IPC

FIELD: devices for measuring ship's heaving motion.

SUBSTANCE: such devices are used for compensation of effect of motions on operation of single-beam and multi-beam each sounders used on surface ships and submarines. Proposed device has linear accelerometer oriented vertically, computer for determination of maximum spectrum and control unit; device is also provided with switch of channels and double integration circuit at constant parameters; output of vertical accelerometer is connected with inputs of double integration circuits whose outputs are connected to information inputs of channel switch; besides that, output of accelerometer is connected with input computer used for determination of maximum spectrum whose output is connected with control input of channel switch by means of control unit. Control unit is connected to output of channel switch depending on present magnitude of prevailing frequency of motions. Double integration circuits operate in parallel and independently, thus excluding transient process in change-over of channel switch since parameters of each double integration circuit are constant.

EFFECT: enhanced dynamic stability.

1 dwg