Calibration of acoustic emission sensors with laser-generated ultrasonic wave
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概要
- 論文の詳細を見る
Laser-generated ultrasonic wave is employed as a standard acoustic emission(AE)source to calibrate sensors. Characteristics of ultrasonic wave concerning its generation efficiency and directivity were inverstigated. By covering a transfer block with water layer, a unipolar planar pulse with 80 ns duration was efficiently generated. The surface excitation was interrogated by an optical interferometer, and subsequently measured by AE sensors. Comparing these outputs, the sensitivity of AE sensors can be determined in the wide frequency range. Experimental results on five commercial sensors are demonstrated.
- 社団法人日本音響学会の論文
著者
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Nagai S
National Research Laboratory Of Metrology
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NAKANO Hidetoshi
National Research Laboratory of Metrology
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NAGAI Satoshi
National Research Laboratory of Metrology
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MATSUDA Youichi
National Research Laboratory of Metrology
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Muto Kazuo
The Institution of Vocational Training
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Nakano H
Ntt Corp. Kanagawa Jpn
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Matsuda Y
National Research Laboratory Of Metrology
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Nagai Satoshi
National Research Institute Of Fisheries And Environment Of Inland Sea
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Nakano Hidetoshi
National Metrology Institute Of Japan National Institute Of Advanced Industrial Science And Technolo
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