发明名称 |
Dynamic focusing and sectorial scanning echography device |
摘要 |
An echography device with dynamic focusing and sectorial scanning, comprising a transmitting portion (16) and a receiving portion (18) constituting piezoelectric transducers (4), juxtaposed in a form of a linear bar (2), each transducer (4) being associated with a delay line (26,32), the delays applied when a wave is being received being determined as a function of a reference dependent on the delays when the wave is being retransmitted and stored in a digital memory (34), the said reference being fed into a frequency adjustable oscillator (42) associated with a servo-device (38, 56, 54) through a computer.
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申请公布号 |
US4422332(A) |
申请公布日期 |
1983.12.27 |
申请号 |
US19810264576 |
申请日期 |
1981.05.18 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE |
发明人 |
DUBUIS, JEAN-CHARLES;MARTIN, MICHEL;PIAGET, BERNARD;PIQUARD, JEAN-FRANCOIS;VACHER, JACQUES |
分类号 |
G01S7/52;G01S15/89;G10K11/32;G10K11/34;(IPC1-7):G01N29/00 |
主分类号 |
G01S7/52 |
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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