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1. 发明申请

WO2013165569A1 ACOUSTIC CAMERA 审中-公开
标题翻译：声乐相机
公开(公告)号：WO2013165569A1
公开(公告)日：2013-11-07
申请号：PCT/US2013/030753
申请日：2013-03-13
申请人： LOS ALAMOS NATIONAL SECURITY, LLC , SINHA, Dipen N. , BRADY, John F.
发明人： SINHA, Dipen N. , BRADY, John F.
IPC分类号： G01V1/00
CPC分类号： G01S7/52017 , G01N29/0654 , G01N29/07 , G01N29/221 , G01N2291/106 , G01S15/02 , G01S15/8913 , G01S15/8925 , G01S15/8993
摘要： Apparatus (10) for generating accurate 3-dimensional images of objects (20) immersed in liquids including optically opaque liquids which may also have significant sound attenuation, is described. Sound pulses (14) are caused to impinge on the object, and the time-of-flight of the reflected sound (22) is used to create a 3-dimensional image of the object in almost real-time. The apparatus is capable of creating images of objects immersed in fluids that are optically opaque and have high sound attenuation at resolutions less than about 1 mm. The apparatus may include a piezoelectric transducer (16) for generating the acoustic pulses (14); a high-density polyethylene compound acoustic lens (24), a 2-dimensional segmented piezoelectric detecting array (26) positioned behind the lens for receiving acoustic pulses (22) reflected by the object (20), the electric output of which is directed to digital signal processing electronics (28) for generating the image.
摘要翻译：描述了用于产生浸没在液体中的物体（20）的准确三维图像的装置（10），包括也可能具有显着声音衰减的光学不透明液体。使声音脉冲（14）撞击到物体上，并且使用反射声（22）的飞行时间几乎实时地创建物体的三维图像。该装置能够产生浸没在光学不透明的流体中的物体的图像，并且在小于约1mm的分辨率下具有高的声音衰减。该装置可以包括用于产生声脉冲（14）的压电换能器（16）。高密度聚乙烯复合声透镜（24），位于透镜后面的用于接收由物体（20）反射的声脉冲（22）的二维分段压电检测阵列（26），其电输出指向用于产生图像的数字信号处理电子器件（28）。

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