Droplet as a Mechanical Coupling for a Vibrational System and its Application in Fluid Property Sensing

Dharmaraj, S and Sen, P (2023) Droplet as a Mechanical Coupling for a Vibrational System and its Application in Fluid Property Sensing. In: 22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023, 25 June 2023through 29 June 2023, Kyoto, Japan, pp. 690-693.

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Abstract

This paper reports a coupled oscillator structure as a viscosity-density sensor. A liquid droplet serves as a mechanical coupling between the two mechanical plates. One plate is actuated. The other plate is passive and vibrates due to energy transferred through the droplet. The frequency response of the plates is measured for different glycerol water mixtures (GWM). Actuated plate velocity is shown to vary linearly, with the density ranging from 996 kg/m3 to 1214 kg/m3. The Q-factor of the passive plate's first mode decreases with viscosity. Using a small volume of fluid provides a higher Q-factor enabling functionality over a larger viscosity range of 0.89mPa.s to 67mPa.s. © 2023 IEEJ.

Item Type:	Conference Paper
Publication:	2023 22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	24 Sep 2024 08:41
Last Modified:	24 Sep 2024 08:41
URI:	http://eprints.iisc.ac.in/id/eprint/85227

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