TY - GEN
T1 - The sound of a sliding droplet
AU - Thanh-Vinh, Nguyen
AU - Takahashi, Hidetoshi
AU - Tsukagoshi, Takuya
AU - Matsumoto, Kiyoshi
AU - Shimoyama, Isao
PY - 2016/2/26
Y1 - 2016/2/26
N2 - In this paper, we report on a direct measurement of the vibration on the surface of a droplet during its sliding on a micropillar array. The measurement is realized by using a MEMS-based force sensor fabricated under a micropillar. Our method provides direct information on the frequency of the vibration which was difficult to be obtained by conventional observation-based methods. We demonstrate that in case of a water droplet sliding on a 125 μm-pitch micropillar array, a vibration at frequency of approximately 3 kHz was found to occur on the droplet surface. Moreover, we show that the frequency of the vibration during the sliding of a droplet on a micropillar array does not depend on the sliding velocity nor the volume of the droplet.
AB - In this paper, we report on a direct measurement of the vibration on the surface of a droplet during its sliding on a micropillar array. The measurement is realized by using a MEMS-based force sensor fabricated under a micropillar. Our method provides direct information on the frequency of the vibration which was difficult to be obtained by conventional observation-based methods. We demonstrate that in case of a water droplet sliding on a 125 μm-pitch micropillar array, a vibration at frequency of approximately 3 kHz was found to occur on the droplet surface. Moreover, we show that the frequency of the vibration during the sliding of a droplet on a micropillar array does not depend on the sliding velocity nor the volume of the droplet.
UR - http://www.scopus.com/inward/record.url?scp=84970971237&partnerID=8YFLogxK
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U2 - 10.1109/MEMSYS.2016.7421761
DO - 10.1109/MEMSYS.2016.7421761
M3 - Conference contribution
AN - SCOPUS:84970971237
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 843
EP - 845
BT - MEMS 2016 - 29th IEEE International Conference on Micro Electro Mechanical Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 29th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2016
Y2 - 24 January 2016 through 28 January 2016
ER -