Rapid and Precise Measurement System for Ultrasonic Velocity by Pulse Correlation Method Designed for Chemical Analysis
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概要
- 論文の詳細を見る
We developed an automatic measurement system for ultrasonic velocity in the megahertz region particularly designed for materials science. The ultrasonic pulse method is fully supported by digital equipment and the correlation function of the 1st and 2nd pulse echoes is numerically obtained from the ultrasonic velocity precisely determined to a relative accuracy of $10^{-6}$. An ultrasonic corner reflector is also employed to realize the high reproducibility of the measurement without adjusting the parallelism of the countering transducer and reflector. The performance of the system is examined by determining the concentration dependence of sound velocity in an electrolyte solution in a dilute range.
- 2005-05-15
著者
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Sakai Keiji
Institute Of Industrial Science University Of Tokyo
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HOSODA Maiko
Frontier Research & Development Center, Tokyo Denki University
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OGAWA Hideo
Chemical Laboratory, Dept. of Natural Sciences, College of Science & Engineering
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Nomura Hiroyasu
Chemical Laboratory Dept. Of Natural Sciences College Of Science & Engineering
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Takagi Kenshiro
Institute Of Industrial Science The University Of Tokyo
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Ogawa Hideo
Chemical Laboratory, Dept. of Natural Sciences, College of Science & Engineering, Tokyo Denki University, Isizaka, Hatoyama, Saitama 350-0394, Japan
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Hosoda Maiko
Frontier Research & Development Center, Tokyo Denki University, Isizaka, Hatoyama, Saitama 350-0394, Japan
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Takagi Kenshiro
Institute of Industrial Science, University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, Japan
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Sakai Keiji
Institute of Industrial Science, University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, Japan
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Nomura Hiroyasu
Chemical Laboratory, Dept. of Natural Sciences, College of Science & Engineering, Tokyo Denki University, Isizaka, Hatoyama, Saitama 350-0394, Japan
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