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US4045766A Ultrasonic detection system 失效
超声检测系统

Ultrasonic detection system
摘要:
An ultrasonic detection system which includes means for the transmission of signals in all directions, a circular array of transducers arranged at uniform intervals, means for producing output signals from spaced transducers and then sequentially combining outputs from sets of adjoining transducers to produce a plurality of received signals for display on indicating means.
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