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Ultrasonic probe, ultrasonic testing equipment, ultrasonic testing method, and manufacturing method of seamless pipe or tube
Ultrasonic probe, ultrasonic testing equipment, ultrasonic testing method, and manufacturing method of seamless pipe or tube
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机译:超声波探头,超声波检查设备,超声波检查方法以及无缝管的制造方法
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摘要
The ultrasonic testing method includes the steps of arranging an ultrasonic probe having a plurality of transducers so as to face a tubular test object P, and causing the transducers appropriately selected from the plurality of transducers to transmit and receive ultrasonic waves so that the ultrasonic waves are propagated in the tubular test object in a plurality of different propagation directions, wherein a ultrasonic testing condition by the ultrasonic probe is set so that respective external refraction angles θr of the ultrasonic waves in the plurality of propagation directions are approximately equivalent and/or respective internal refraction angles θk of the ultrasonic waves in the plurality of propagation directions are approximately equivalent.
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