摘要:
The invention relates to a stabiliser for an underwater towed antenna (10), with a towed body (11), embodied with favourable flow properties and a roll axis (13) which runs through the connection point with the towed antenna. According to the invention, the positional stabilisation of the towed antenna (10), even at high towed speeds, may be guaranteed and a weight reduction which facilitates the handling of the towed antenna (10) on extracting and bringing in said antenna is achieved, whereby at least one fin-like profiled body (21) is arranged externally on the towed body (11), which may be rotated about a vertical axis (22). A control device (23) is integrated in the towed body (11), which adjusts the rotational angle of the profiled body (21), depending upon the roll angle of the towed body (11), such as to exert a returning roll moment on the towed body (11).
摘要:
The invention relates to a sound transducer for sending and/or for receiving underwater acoustic signals, which transducer has an acoustic transducer element, at least one first spring element, a filling compound and a transducer support, wherein the acoustic transducer element is designed as a first mass and the first spring element and the transducer support attached thereto are arranged behind the acoustic transducer element with respect to a sound pressure direction, such that an oscillating system is established and thus an acoustic sensitivity of the sound transducer is improved. The invention also relates to a transducer device, a sonar for sending and/or for receiving underwater acoustic signals and a watercraft.
摘要:
The invention relates to a submarine antenna for attachment to the hull of a submarine. Said submarine antenna comprises a planar converter arrangement of a plurality of electroacoustic converters which are vertically and horizontally interspaced in a row when the reflector (13) is attached, the converter arrangement extending along the hull. In order to devise a lateral antenna which is optimized for attachment to the submarine in terms of its weight and pressure resistance and which has a good signal-to noise ratio, the reflector (13) is designed to be attached to the hull and is mounted in front of a drive element (15) in the sound incidence direction, said drive element comprising a rigid foam core (17), a potting compound (18) enclosing the rigid foam core (17), and force-transducing, high-strength supporting elements in the form of rigid slabs (19) and sleeves embedded into the potting compound (18).