Measurement of Intense Ultrasound Field in Air Using Fiber Optic Probe
Measurement of Intense Ultrasound Field in Air Using Fiber Optic Probe
复制标题
使用光纤探头测量空气中的强超声场
DOI：
10.1143/jjap.46.4555
复制
发表时间：
2007
影响因子：
1.5
通讯作者：
S. Ueha
中科院分区：
文献类型：
--
作者：
H. Takei;T. Hasegawa;Kentaro Nakamura;S. Ueha
本文研究了一种利用光纤探头测量强超声场的方法。我们试图通过声压引起的空气折射率的变化来利用光纤末端的光反射率的调制。对空气的理论灵敏度进行了研究，并描述了测量装置。与商业探头型电容传声器进行比较。理论估计的声压绝对值与使用常规传声器获得的结果基本一致，并表现出良好的线性。通过三个测量实例验证了该方法的有效性。
In this report, a method of measuring intense ultrasound field using a fiber optic probe is studied. We try to utilize the modulation of optical reflectivity at the end of the optical fiber through a change in the refractive index of air due to sound pressure. The theoretical sensitivity for air is studied and a setup for the measurement is described. Comparisons with a commercial probe-type condenser microphone are performed. The absolute value of sound pressure estimated theoretically almost agreed with the results obtained using a conventional microphone and showed good linearity. The validity of the method was proved using three measurement examples.
DOI：
10.1143/jjap.45.4688
发表时间：
2006-05-01
期刊：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
影响因子：
--
作者：
Kitsunai, H;Kawashima, N;Odaira, E
通讯作者：
Odaira, E