2013 Fiscal Year Final Research Report
Study of a new inspection system of a pipe using a piezoelectric ultrasonic sensor and an electromagnetic induction coil
| Project/Area Number |
23560880
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Material processing/treatments
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| Research Institution | Fukuoka Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 超音波探傷 / 高温構造物 / パイプ / 超磁歪素子 / 強誘電薄膜積層素子 / 電磁誘導コイル / 非接触駆動 / ガイド波 |
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| Research Abstract |
The new sensor system by combining of a piezoelectric thin-film multilayer ultrasonic element and an electromagnetic induction coil could be driven from 20cm far exceeding the sensor by using a drive equipment which consists of an electromagnetic induction coil and a high power electric transmitting device, as a result of electromagnetic induction coil specification optimization. Then there was no change in the detection sensitivity, when the high temperature experiment up to 400 degrees is conducted and only a coil's is heated. Next, when a piezoelectric thin film type ultrasonic sensor was heated simultaneously, the sensitivity fell down, but the sufficient receiving signal intensity was obtained. Next, it was possible to successfully receive a guided wave by electromagnetic induction method by attaching a piezoelectric transducer at regular intervals on test the pipe to circumferential direction to detect the through-holes of 10mm diameter.
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Research Products
(27 results)
