Experimental investigation of surface acoustic wave atomization

Wang, Junxiong; Hu, Hong; Ye, Aipeng; Chen, Jian; Zhang, Peng

doi:10.1016/j.sna.2015.11.027

Cited by 29 publications

(18 citation statements)

References 21 publications

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“…The existence of a fluid film in the SAW propagation path is essential for the aerosol droplet production, as fluid droplets with diameters between 0.1–100 μm are ejected from such a film (Ang et al, 2016 ; Collins et al, 2012 ; Wang et al, 2016 ). Commonly, the term „fluid film“ is defined as a body of fluid with a thickness that is substantially smaller than any of its horizontal dimensions.…”

Section: System Principlesmentioning

confidence: 99%

Compact SAW aerosol generator

Winkler

Harazim

Collins

et al. 2017

Biomed Microdevices

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In this work, we discuss and demonstrate the principle features of surface acoustic wave (SAW) aerosol generation, based on the properties of the fluid supply, the acoustic wave field and the acoustowetting phenomena. Furthermore, we demonstrate a compact SAW-based aerosol generator amenable to mass production fabricated using simple techniques including photolithography, computerized numerical control (CNC) milling and printed circuit board (PCB) manufacturing. Using this device, we present comprehensive experimental results exploring the complexity of the acoustic atomization process and the influence of fluid supply position and geometry, SAW power and fluid flow rate on the device functionality. These factors in turn influence the droplet size distribution, measured here, that is important for applications including liquid chromatography, pulmonary therapies, thin film deposition and olfactory displays.Electronic supplementary materialThe online version of this article (doi:10.1007/s10544-017-0152-9) contains supplementary material, which is available to authorized users.

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Section: System Principlesmentioning

confidence: 99%

Compact SAW aerosol generator

Winkler

Harazim

Collins

et al. 2017

Biomed Microdevices

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“…The nanoscale wave traveling along a piezoelectric film is usually generated by an interdigital transducer (IDT). Several factors have impacts on the performance of such SAW devices: the substrate depth, the surface tension, the frequency of the surface waves and liquid properties (density, shear viscosity, the characteristic height and length scales) [ 55 ]. Y. Ariyakul et al developed an olfactory display that consisted of an electroosmotic (EO) pump and a surface acoustic wave (SAW) component [ 56 ].…”

Section: Odor Reproductionmentioning

confidence: 99%

The Odor Characterizations and Reproductions in Machine Olfactions: A Review

Wen

Luo

et al. 2018

Sensors

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Machine olfaction is a novel technology and has been developed for many years. The electronic nose with an array of gas sensors, a crucial application form of the machine olfaction, is capable of sensing not only odorous compounds, but also odorless chemicals. Because of its fast response, mobility and easy of use, the electronic nose has been applied to scientific and commercial uses such as environment monitoring and food processing inspection. Additionally, odor characterization and reproduction are the two novel parts of machine olfaction, which extend the field of machine olfaction. Odor characterization is the technique that characterizes odorants as some form of general odor information. At present, there have already been odor characterizations by means of the electronic nose. Odor reproduction is the technique that re-produces an odor by some form of general odor information and displays the odor by the olfactory display. It enhances the human ability of controlling odors just as the control of light and voice. In analogy to visual and auditory display technologies, is it possible that the olfactory display will be used in our daily life? There have already been some efforts toward odor reproduction and olfactory displays.

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“…Wang and Hu measured the atomized droplet size distribution generated by a SAW device in the order of 20 MHz. Analysis by a laser diffraction system revealed that the diameter distribution of droplets centered on three main areas, namely, 1 μm, 10 μm, and 100 μm [5]. Ju and Yamagata investigated a high-frequency SAW atomizer with resonance frequencies ranging from 50 to 95 MHz and found that the mean diameters of atomized droplets were 5.7 μm (50 MHz), 4.4 μm (75 MHz), and 2.7 μm (95 MHz) [6].…”

Section: Introductionmentioning

confidence: 99%

“…The power required was therefore much less than what was required for ultrasonic atomization. It is possible to achieve atomization at 2–3 W of power, which allows the device to be hand-held; therefore, this was considered as an ideal device for applications such as pulmonary drug delivery, olfactory displays, and micro or nanoparticle synthesis [1,2,3,4,5,6,7,8,9,10,11].…”

Section: Introductionmentioning

confidence: 99%

Influence of Waterproof Films on the Atomization Behavior of Surface Acoustic Waves

Huang

Han

et al. 2019

Micromachines

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One of the reasons why commercial application of surface acoustic wave (SAW) atomization is not possible is due to the condensation of aerosol droplets generated during atomization, which drip on the interdigitated transducer (IDT), thereby causing electrodes to short-circuit. In order to solve this problem, a SU-8-2002 film coating on an IDT is proposed in this paper. The waterproof performance of the film coating was tested on a surface acoustic wave (SAW) device several times. The experimental results reveal that the film coating was robust. The experiment also investigated the effects of the SU-8-2002 film on atomization behavior and heating.

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Experimental investigation of surface acoustic wave atomization

Cited by 29 publications

References 21 publications

Compact SAW aerosol generator

Compact SAW aerosol generator

The Odor Characterizations and Reproductions in Machine Olfactions: A Review

Influence of Waterproof Films on the Atomization Behavior of Surface Acoustic Waves

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