Non-contact mass measurement of droplet based on free oscillation under ultrasonic levitation

被引：1
|
作者：
Ito, Sae [1 ]
Nakamura, Ryohei [1 ]
Tanaka, Hiroki [1 ]
Mizuno, Yosuke [1 ]
Tabaru, Marie [1 ]
Nakamura, Kentaro [1 ]
机构：
[1] Tokyo Inst Technol, Precis & Intelligence Lab, Yokohama, Kanagawa 2268503, Japan
来源：
2015 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS) | 2015年
关键词：
ultrasonic levitation; measurement system; free-oscillation; non-contact measurement;
D O I：
10.1109/ULTSYM.2015.0109
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The position of solid object or droplet will vibrate when it is levitated in a standing ultrasonic field. The frequency of the free oscillation is determined by the mass of the object and the gradient of the ultrasonic radiation force. Using this phenomenon, in this report, we tried to measure the mass of the levitated droplet. First, we investigated the relationship between the effective spring constant and the sound pressure on the levitated object by using plastic spheres with known mass. Using the relationship, we executed non-contact mass measurement of ethanol and water droplets. As a result, mass can be measured with error rate of 5-40%.
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页数：4
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