发明名称 |
ULTRASONIC FLAW DETECTION DEVICE, ULTRASONIC TRANSDUCER, AND ULTRASONIC FLAW DETECTION METHOD |
摘要 |
A transducer main body 7 has, on a front end side thereof, an oscillating plane 9 having a bent shape in a side view and corresponding to a larger-diameter curved surface formed at a bend Wc of a laminated part W. Over the oscillating plane 9 of the transducer main body 7, a plurality of piezoelectric oscillators 11 are distributed in a matrix in a bent direction AD and a width direction BD. In each oscillator group 11G, a controlling unit 5 switches the piezoelectric oscillators 11 to transmission and reception piezoelectric oscillators by turns in the width direction BD according to a preset transmission/reception pattern and processes a received signal from the reception piezoelectric oscillator 11 according to an aperture synthesis method. |
申请公布号 |
EP2631641(A1) |
申请公布日期 |
2013.08.28 |
申请号 |
EP20110834478 |
申请日期 |
2011.10.21 |
申请人 |
IHI CORPORATION |
发明人 |
INAGAKI, KOICHI;IZUMI, MAMORU;KARASAWA, HIROKAZU |
分类号 |
G01N29/24;G01N29/26 |
主分类号 |
G01N29/24 |
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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