OS6-04 Development of Signal Processing Method for Fiber Optic AE Sensor Using Wavelet Analysis
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概要
- 論文の詳細を見る
A new fiber optic sensor based on Doppler effect has been recently developed for acoustic emission (AE) measurement. This sensor shows good performance in AE measurement, however, its sensitivity is lower than that of conventional AE sensor (PZT sensor). The present research has developed a signal processing method based on wavelet analysis for this fiber optic sensor. Denoising has been made to enhance the signal to noise ratio (SNR) of the detected signals. The results show that SNR was greatly improved from 30dB to 75dB.
- 一般社団法人日本機械学会の論文
- 2005-06-28
著者
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Chivavibul Pornthep
Central Research Institute Of Electric Power Industry (criepi):dep't Of Environmental And Ocean
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MACHIJIMA Yuichi
Lazoc Inc.
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Fukutomi Hiroyuki
Central Research Institute Of Electric Power Industry (criepi):dep't Of Environmental And Ocean
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Machijima Yuichi
Lazoc Inc.:dep't Of Environmental And Ocean Engineering School Of Engineering The University Of
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Ogata Takashi
Central Research Institute of Electric Power Industry (CRIEPI)
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Takahashi Shin
LAZOC INC.
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Ogata Takashi
Central Research Institute Of Electric Power Industry (criepi):dep't Of Environmental And Ocean
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Ogata Takashi
Central Research Institute Of Electric Power Industry
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Takahashi Shin
Lazoc Inc.:dep't Of Environmental And Ocean Engineering School Of Engineering The University Of
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