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A non-destructive ultrasonic testing device for testing a cylindrical wall accessible through a narrow ring-shaped channel (a narrow ring-shaped passage)
A non-destructive ultrasonic testing device for testing a cylindrical wall accessible through a narrow ring-shaped channel (a narrow ring-shaped passage)
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机译：一种用于检测可通过窄环形通道（窄环形通道）进入的圆柱壁的无损超声检测装置
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摘要
The device of the invention comprises a braid (1) and a braid end carrying a test probe (2). The probe 2 includes a first ultrasonic transducer 23 constituted by a divergent and a second ultrasonic transducer 24 constituting a receiver and the first and second ultrasonic transducers are arranged in the longitudinal direction of the braid 1, (1) pivotally mounted at the end of the braid (1) with respect to two parallel axes, and in contact with the cylindrical wall to be tested at two positions separated from each other in the circumferential direction of the annular passage so as to be located in the narrow annular passage And are aligned and separated from each other in the lateral direction.
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