Title:
PARTICLE TWO-DIMENSIONAL ACOUSTIC FOCUSING DEVICE, AND ACOUSTIC CONCENTRATION DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/234130
Kind Code:
A1
Abstract:
Provided are a particle two-dimensional acoustic focusing device that can efficiently focus and concentrate particles present in liquid flowing in a channel by using the acoustic effect of ultrasonic waves while having a simple configuration, and an acoustic concentration device using the particle two-dimensional acoustic focusing device. This particle two-dimensional acoustic focusing device is configured so as to focus particles contained in liquid flowing in a channel to the center of the cross-section of the channel by using ultrasonic waves and comprises: a rectangular channel 10 having a substantially rectangular cross-sectional shape when broken orthogonally to the extension direction of the channel; and a single ultrasonic wave generator 20 that simultaneously irradiates the interior of the rectangular channel 10 with a first ultrasonic wave and a second ultrasonic wave in a composite state, the first ultrasonic wave being generated so that the length of a long side a of the rectangle of the rectangular channel 10 is substantially equivalent to the length of a half wavelength, the second ultrasonic wave being generated so that the length of a short side b of the rectangle of the rectangular channel 10 is substantially equivalent to the length of the half wavelength.
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Inventors:
AKIYAMA YOSHITAKE (JP)
Application Number:
PCT/JP2023/019243
Publication Date:
December 07, 2023
Filing Date:
May 24, 2023
Export Citation:
Assignee:
SHINSYU UNIV (JP)
International Classes:
B01D43/00; B01J19/10; G01N37/00
Foreign References:
| JP2017515669A | 2017-06-15 | |||
| JP2020502539A | 2020-01-23 | |||
| JP2014528089A | 2014-10-23 | |||
| JP2011508220A | 2011-03-10 | |||
| JPH09122480A | 1997-05-13 | |||
| US20090029870A1 | 2009-01-29 |
Attorney, Agent or Firm:
KOBAYASHI Tsunenori (JP)
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