Measurement of Ultrasonic Attenuation in Metals by the Pulse Method

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概要

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• A method for measuring ultrasonic attenuation in some common metals is described together with the results obtained in the frequency range from 500 Kc/s to 6 Mc/s by the use of pulse techniqes. Although the multiple-echo method has been widely applied in such measurement, many factors should be taken into consideration to obtain accurate results. In this research, to get rid as far as possible of errors due to these factors, many corrections were made in the use of the apparatus and the conditions of measurement. Attenuation constants were determined for four common metals, mild steel, cast iron, aluminum and copper. It seems that the resultant error is less than ±10 percent in every case.

• 東北大学の論文

著者

• Tanaka Sakae

  The Research Institute For Scientific Measurements

• ANZAI Taro

  The Research Institute for Scientific Measurements

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• Measurement of the Thickness of Metal Plate by Ultrasonic Harmonic Method. I : On the Condition of the Thickness Resonance
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