Abstract
A new instrument has been developed for rapid continuous recording of temporal changes in ultrasonic velocity and attenuation constant in a material. A set of data of changes in velocity and attenuation is obtained within the interval of one echo train, usually 0.1 msec or longer. A high-speed minicomputer is used for controlling the whole electronic system and data processing. The accuracy is 10−5to 10−6for the velocity change and 10−3for the attenuation change in a sample length of 3 cm. Data showing the speed and accuracy of the instrument are given.
| Original language | English |
|---|---|
| Pages (from-to) | 1379-1385 |
| Number of pages | 7 |
| Journal | Japanese journal of applied physics |
| Volume | 18 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1979 Jul |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Nakajima, H., Tanaka, H., Shimazaki, O., Yamanaka, K., Kinoshita, T., & Wada, Y. (1979). New instrument for rapid and accurate measurement of ultrasonic velocity and attenuation using a minicomputer system. Japanese journal of applied physics, 18(7), 1379-1385. https://doi.org/10.1143/JJAP.18.1379