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公开(公告)号：EP3276615A1
公开(公告)日：2018-01-31
申请号：EP17020320.2
申请日：2017-07-27
发明人： NEDWELL, Jeremy Ross
CPC分类号： G10K11/26 , A01K79/02 , A01M29/16 , G10K11/22 , G10K11/32 , G10K15/02 , H04R1/2853 , H04R1/34 , H04R1/40 , H04R1/44
摘要： An acoustic device for forming a wall of sound underwater. Walls of sound are useful in water for guiding fish away from areas. Hitherto, systems have used bubbles of water to facilitate the speed of travel of the sound. Those systems have suffered from the ability to maintain a consistent wall of bubbles and have often been inefficient.
The present invention seeks to provide an acoustic device for forming a wall of sound underwater and comprises a transducer connected to an acoustic waveguide. The waveguide comprises one or more projections, whereby sound generated by the transducer travels along the projection or projections to form the wall of sound.
The waveguide may typically comprise compressible projections formed from neoprene. These projections are arranged in a fan or frond shape. In addition or alternatively, the projections may be laminar. The projections could be of different lengths. The location, arrangement and lengths of the projections are all suited to the underwater location to maximise the effectiveness of the wall of sound.摘要翻译： 一种用于在水下形成声音墙的声学装置。 声音的墙在水中用于引导鱼远离区域。 迄今为止，系统已经使用水泡来促进声音的传播速度。 这些系统受到保持恒定泡沫壁的能力的影响，并且往往效率低下。 本发明试图提供一种用于在水下形成声音墙壁的声学装置，并且包括连接到声波导的换能器。 波导包括一个或多个突起，由此换能器产生的声音沿着一个或多个突起行进以形成声音的壁。 波导通常可以包括由氯丁橡胶形成的可压缩突起。 这些投影以扇形或叶状排列。 另外或可选地，突起可以是层状的。 投影可以具有不同的长度。 投影的位置，排列和长度都适合于水下位置，以最大限度地提高声音墙的效果。
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公开(公告)号：EP2606186A1
公开(公告)日：2013-06-26
申请号：EP11743594.1
申请日：2011-08-01
发明人： NEDWELL, Jeremy Ross
IPC分类号： E02B1/00
摘要： In order to deter underwater animals from an underwater region such as adjacent the entrance to an offtake pipe or channel from a river, sound and light are produced by sound and light producing units in the underwater region and are intermittently pulsed and/or at least one characteristic of the sound and light is repetitively modulated. At least some of the pulses of light and/or the occurrences of at least one feature in at least some of the light modulation repetitions are substantially synchronised with at least some of the pulses of sound and/or the occurrences of at least one feature in at least some of the sound modulation repetitions. For example, the sound may be frequency modulated, and the light may be pulsed when the sound frequency reaches its minimum. It is believed that this synchronisation of light and sound has a synergistic effect.
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