Underwater imaging system using acoustic holography

被引：0

作者：

Shirai, K ^{[1
]}

Fujimoto, T ^{[1
]}

Harada, T ^{[1
]}

机构：

[1] Port & Harbour Res Inst, Machinery Div, Yokosuka, Kanagawa 239, Japan

来源：

PROCEEDINGS OF THE 2000 INTERNATIONAL SYMPOSIUM ON UNDERWATER TECHNOLOGY | 1998年

关键词：

D O I：

暂无

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

We have been developing the underwater ultrasonic imaging system to view some objects in turbid water. A purpose of the development of system development is to get images in order to operate remote-contoroled underwater construction machines. In turbid water,optical visibility is limited because light is both attenuated and scattered. But acoustic waves have the ability to penetrate turbid water in which optical system can not obtain the vision. This system consists of transducer unit and control unit. The ultrasonic frequency is 600kHz .This system using acoustic holography will be able to get real time 3-D image. The 3-D image can be reconstructed by mean of a single transmitting and receiving process. The operating range for distance is 1-10m and field of view is 80 x 80cm at 10m. We carryed out experiment with this imaging system in the water tank. We obtained 2-D acoustic image of the objects (the bails) which were 9m away.

引用

页码：122 / 126

页数：3