发明授权
- 专利标题： Fish sonar
- 专利标题（中）： 鱼声呐
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申请号： US216922申请日： 1980-12-16
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公开(公告)号： US4425635A公开(公告)日： 1984-01-10
- 发明人: Shigeo Yamamoto , Kazuto Kobayashi
- 申请人： Shigeo Yamamoto , Kazuto Kobayashi
- 申请人地址： JPX Aichi
- 专利权人： Keisuke Honda
- 当前专利权人： Keisuke Honda
- 当前专利权人地址： JPX Aichi
- 优先权： JPX55-71478 19800530; JPX55-71479 19800530
- 主分类号： G01S3/808
- IPC分类号： G01S3/808 ; G01S15/96 ; G01S3/80
摘要：
A fish sonar is capable of detecting ultrasonic waves from a desired direction by shaping the waveforms of the outputs of a pair of vibrators spaced apart by a certain distance, and detecting a delay of the output from one of the vibrators with respect to that of the other of the vibrators so as to detect the direction of the ultrasonic waves coming to the pair of vibrators and to delay the output of the other of the vibrators with respect to the output of one of the vibrators.
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