Gas Bubble Sizes Formed in Liquids at Different Resonant Frequencies

Chiang Ho Cheng; Chia Lan Chang; Tsung Hsing Chan

doi:10.4028/www.scientific.net/AMR.74.105

Paper Titles

Development of Liquid Tunable Diffractive/Refractive Hybrid Lens Based on Combination of Diamond Turning and Soft Lithography
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A Chip-Level Disposable Optofluidic Device for Biosensing
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Label-Free Protein Detection via Gold Nanoparticles and Localized Surface Plasmon Resonance
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Photothermal Techniques for Materials Characterization and Live Cells Monitoring
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Gas Bubble Sizes Formed in Liquids at Different Resonant Frequencies
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DC-Biased AC-Electrokinetic Mixing: A Mechanistic Investigation
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Gas Permeation in Polydimethylsiloxane In Situ Monitoring by Silicon Pressure Sensors
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Metallic Nanoparticles and Nanostructures for Bio-Applications
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Analysis of Ionic Transport Interaction between Soft Smart Hydrogel and Solution in BioMEMS Channel
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 74Gas Bubble Sizes Formed in Liquids at Different...

Gas Bubble Sizes Formed in Liquids at Different Resonant Frequencies

Abstract:

The present research applies the microelectronmechanical system (MEMS) technology to design and fabricate a novel micro-bubble generator by using a piezoelectric actuator. The main structure of the proposed generator adopts an annular piezoelectric ceramic which is coupled with a nickel nozzle plate. In the experiment, a flow visualization setup employs a high magnification microscope and a high speed charge coupled device (CCD) camera to photograph the time evolution of meniscus shape of gaseous bubbles dispensed from the micro-bubble generator. The bubble formation process including the effects of inlet gas pressure as well as driving voltage and resonance frequency on generated bubble size is also discussed in the study.