Optical measurement system of sound pressure with refracted laser light propagated through an acoustic field

被引：3

作者：

Kitsu, K ^{[1
]}

Ikeno, Y ^{[1
]}

Tsuchiya, T ^{[1
]}

Endoh, N ^{[1
]}

Natori, M ^{[1
]}

机构：

[1] NATL OOKURA HOSP,TOKYO 157,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1997年 / 36卷 / 5B期

关键词：

refracted laser light; acoustic field; high power ultrasound; hydrophone; nonlinear effects;

D O I：

10.1143/JJAP.36.3167

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An optical measurement method using a laser beam is described for the quantitative measurement of acoustic fields. The light beam is refracted in the acoustic field because the distribution of densities forced by sound pressure generates a refractive index gradient in the medium. The characteristics of the acoustic field can be measured using a laser beam refracted by the acoustic field. To confirm the validity of the method, the acoustic field generated by a lead zirconate titanate (PZT) circular-plane transducer was measured for comparison with the characteristics obtained from a conventional hydrophone. We also measured harmonic contents, wave distortion due to the nonlinear effect of water, and subharmonics of the n/2th order (n: integer) caused by cavitation in water.

引用

页码：3167 / 3170

页数：4