NEW INSTRUMENT FOR RAPID AND ACCURATE MEASUREMENT OF ULTRASONIC VELOCITY AND ATTENUATION USING A MINICOMPUTER SYSTEM

被引：17

作者：

NAKAJIMA, H

TANAKA, H

SHIMAZAKI, O

YAMANAKA, K

KINOSHITA, T

WADA, Y

机构：

[1] Department of Applied Physics, University of Tokyo, Tokyo

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 1979年 / 18卷 / 07期

关键词：

D O I：

10.1143/JJAP.18.1379

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. © 1979 IOP Publishing Ltd.

引用

页码：1379 / 1385

页数：7

共 7 条

[1] FORGACS RL, 1960, IRE T INSTRUM I, V9, P359
[2] MASON WP, 1958, PHYSICAL ACOUSTICS P
[3] MCFEE JH, 1966, PHYSICAL ACOUSTICS, V41, P1
[4] NAKAJIMA H, 1977, REP PROG POLYM PHYS, V20, P705
[5] NEGISHI K, 1977, 9TH P INT C AC MADR, P557
[6] NEW INSTRUMENT FOR CONTINUOUS AND SIMULTANEOUS RECORDING OF CHANGES IN ULTRASONIC-ATTENUATION AND VELOCITY
ODRU, R
RIOU, C
VACHER, J
DETERRE, P
PEGUIN, P
VANONI, F
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1978, 49 (02) : 238 - 241
[7] KINETIC STUDY OF DENATURATION AND SUBSEQUENT REDUCTION OF DISULFIDE BONDS OF LYSOZYME BY RAPID ULTRASONIC-ABSORPTION MEASUREMENT
YAMANAKA, K
NAKAJIMA, H
WADA, Y
[J]. BIOPOLYMERS, 1978, 17 (09) : 2159 - 2169

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