Measurement of the Resonant Characteristics of a Single Bubble Vibration by Using a Laser Doppler Vibrometer
Measurement of the Resonant Characteristics of a Single Bubble Vibration by Using a Laser Doppler Vibrometer
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DOI：
10.1143/jjap.50.07he04
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发表时间：
2011-07
影响因子：
1.5
通讯作者：
T. Yoshikawa;H. Kotera;Kenji Yoshida;D. Koyama;Kentaro Nakamura;Yoshiaki Watanabe
中科院分区：
文献类型：
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作者：
T. Yoshikawa;H. Kotera;Kenji Yoshida;D. Koyama;Kentaro Nakamura;Yoshiaki Watanabe
利用激光多普勒测振仪（LDV）构建了测量单个微气泡振动的实验系统。结果表明，该系统能够捕获的振动与纳米级的振幅。我们试图通过使用该系统的实验测量气泡附着在墙上的共振特性。其结果是，我们成功地测量的特性和评估的Q因子和谐振半径在27.8 kHz的驱动频率，虽然这些值是不同的理论的基础上预测的一个单一的自由气泡。LDV测量系统有望成为一种有效的工具，用于评估气泡振动与非常小的位移幅度，如振动的微胶囊。
We constructed the experimental system with a laser Doppler vibrometer (LDV) for measuring the vibration of a single microbubble. It was demonstrated that the system enabled the capture of the vibration with an amplitude of nanometer order. We attempted to experimentally measure the resonant characteristics of a bubble attached to a wall by using the system. As a result, we succeeded in measuring the characteristics and evaluating the Q factor and the resonant radius at a driving frequency of 27.8 kHz, although these values are different from those predicted on the basis of the theory for a single free bubble. The LDV measurement system is expected to an effective tool for evaluating bubble vibrations with very small displacement amplitudes, such as the vibration of a microcapsule.