发明名称 |
APPARATUS AND METHOD FOR FORMING A SOUND HOLOGRAM |
摘要 |
A device on board a ship for recording ultrasonic holograms of submerged objects. Ultrasonic waves back-scattered by the heterogeneities of the layer of water neat to the object studied are used as a reference signal. The irregularities of the propagation speed of the waves in the water are thus eliminated.
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申请公布号 |
US3683323(A) |
申请公布日期 |
1972.08.08 |
申请号 |
USD3683323 |
申请日期 |
1970.06.16 |
申请人 |
COMPAGNIE GENERALE D'ELECTRICITE |
发明人 |
DOMINIQUE BROUARD |
分类号 |
C22C38/22;C25D11/38;(IPC1-7):G01S9/66 |
主分类号 |
C22C38/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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