A self-converging atomized mist spray device using surface acoustic wave

Atsushi Yabe, Yuichiro Hamate, Motoaki Hara, Hiroyuki Oguchi, Sumito Nagasawa, Hiroki Kuwano

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We developed a surface acoustic wave (SAW) atomizer, which can produce a narrow mist spray of submillimeter width. The atomized mist spray converges spontaneously and thus requires no additional spray converging system. Key features in achieving the self-converging atomization are two-port interdigital transducers (IDTs) with a groove in between. The SAW is driven by applying an electric field on IDTs patterned on a piezoelectric substrate. The two-port IDTs drive SAWs in opposite directions toward the groove, which then separates the SAW-driven streaming on each side of the groove. Two types of self-converging atomizer were experimentally demonstrated, a line and a point atomizer. While the former uses parallel IDTs to atomize water from the groove into a thin-planar-shaped spray, the latter uses arc-shaped SAW lenses to focus the SAW into a certain point in the groove to atomize water into a narrow point spray. In addition, by adding a water reservoir, continuous operation of up to 30 s was achieved with the submillimeter narrow point atomizer.

Original languageEnglish
Pages (from-to)701-710
Number of pages10
JournalMicrofluidics and Nanofluidics
Volume17
Issue number4
DOIs
Publication statusPublished - 2014
Externally publishedYes

Fingerprint

Acoustic surface wave devices
mist
surface acoustic wave devices
Fog
atomizers
interdigital transducers
Atomizers
grooves
Surface waves
sprayers
Acoustic waves
Transducers
acoustics
Acoustic streaming
water
Water
atomizing
Atomization
Lenses
arcs

Keywords

  • Atomizer
  • MEMS
  • Microfluidics
  • SAW

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

Cite this

A self-converging atomized mist spray device using surface acoustic wave. / Yabe, Atsushi; Hamate, Yuichiro; Hara, Motoaki; Oguchi, Hiroyuki; Nagasawa, Sumito; Kuwano, Hiroki.

In: Microfluidics and Nanofluidics, Vol. 17, No. 4, 2014, p. 701-710.

Research output: Contribution to journalArticle

Yabe, Atsushi ; Hamate, Yuichiro ; Hara, Motoaki ; Oguchi, Hiroyuki ; Nagasawa, Sumito ; Kuwano, Hiroki. / A self-converging atomized mist spray device using surface acoustic wave. In: Microfluidics and Nanofluidics. 2014 ; Vol. 17, No. 4. pp. 701-710.
@article{342d1b83eca747b1966d222584b32514,
title = "A self-converging atomized mist spray device using surface acoustic wave",
abstract = "We developed a surface acoustic wave (SAW) atomizer, which can produce a narrow mist spray of submillimeter width. The atomized mist spray converges spontaneously and thus requires no additional spray converging system. Key features in achieving the self-converging atomization are two-port interdigital transducers (IDTs) with a groove in between. The SAW is driven by applying an electric field on IDTs patterned on a piezoelectric substrate. The two-port IDTs drive SAWs in opposite directions toward the groove, which then separates the SAW-driven streaming on each side of the groove. Two types of self-converging atomizer were experimentally demonstrated, a line and a point atomizer. While the former uses parallel IDTs to atomize water from the groove into a thin-planar-shaped spray, the latter uses arc-shaped SAW lenses to focus the SAW into a certain point in the groove to atomize water into a narrow point spray. In addition, by adding a water reservoir, continuous operation of up to 30 s was achieved with the submillimeter narrow point atomizer.",
keywords = "Atomizer, MEMS, Microfluidics, SAW",
author = "Atsushi Yabe and Yuichiro Hamate and Motoaki Hara and Hiroyuki Oguchi and Sumito Nagasawa and Hiroki Kuwano",
year = "2014",
doi = "10.1007/s10404-014-1358-2",
language = "English",
volume = "17",
pages = "701--710",
journal = "Microfluidics and Nanofluidics",
issn = "1613-4982",
publisher = "Springer Verlag",
number = "4",

}

TY - JOUR

T1 - A self-converging atomized mist spray device using surface acoustic wave

AU - Yabe, Atsushi

AU - Hamate, Yuichiro

AU - Hara, Motoaki

AU - Oguchi, Hiroyuki

AU - Nagasawa, Sumito

AU - Kuwano, Hiroki

PY - 2014

Y1 - 2014

N2 - We developed a surface acoustic wave (SAW) atomizer, which can produce a narrow mist spray of submillimeter width. The atomized mist spray converges spontaneously and thus requires no additional spray converging system. Key features in achieving the self-converging atomization are two-port interdigital transducers (IDTs) with a groove in between. The SAW is driven by applying an electric field on IDTs patterned on a piezoelectric substrate. The two-port IDTs drive SAWs in opposite directions toward the groove, which then separates the SAW-driven streaming on each side of the groove. Two types of self-converging atomizer were experimentally demonstrated, a line and a point atomizer. While the former uses parallel IDTs to atomize water from the groove into a thin-planar-shaped spray, the latter uses arc-shaped SAW lenses to focus the SAW into a certain point in the groove to atomize water into a narrow point spray. In addition, by adding a water reservoir, continuous operation of up to 30 s was achieved with the submillimeter narrow point atomizer.

AB - We developed a surface acoustic wave (SAW) atomizer, which can produce a narrow mist spray of submillimeter width. The atomized mist spray converges spontaneously and thus requires no additional spray converging system. Key features in achieving the self-converging atomization are two-port interdigital transducers (IDTs) with a groove in between. The SAW is driven by applying an electric field on IDTs patterned on a piezoelectric substrate. The two-port IDTs drive SAWs in opposite directions toward the groove, which then separates the SAW-driven streaming on each side of the groove. Two types of self-converging atomizer were experimentally demonstrated, a line and a point atomizer. While the former uses parallel IDTs to atomize water from the groove into a thin-planar-shaped spray, the latter uses arc-shaped SAW lenses to focus the SAW into a certain point in the groove to atomize water into a narrow point spray. In addition, by adding a water reservoir, continuous operation of up to 30 s was achieved with the submillimeter narrow point atomizer.

KW - Atomizer

KW - MEMS

KW - Microfluidics

KW - SAW

UR - http://www.scopus.com/inward/record.url?scp=84920252579&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84920252579&partnerID=8YFLogxK

U2 - 10.1007/s10404-014-1358-2

DO - 10.1007/s10404-014-1358-2

M3 - Article

VL - 17

SP - 701

EP - 710

JO - Microfluidics and Nanofluidics

JF - Microfluidics and Nanofluidics

SN - 1613-4982

IS - 4

ER -