Title:
MICRO LIQUID QUANTITY MEASURING DEVICE, AND MICRO LIQUID QUANTITY MEASURING METHOD
Document Type and Number:
WIPO Patent Application WO/2007/097456
Kind Code:
A1
Abstract:
Sound waves are radiated by an acoustic generation unit (10) from a predetermined direction
of inclination toward the individual openings of a plurality of wells (130A),
(130B) and so on, to which a liquid is dispensed by a dispensing device (100). The
sound waves are detected, while their frequencies being swept by a sweeping unit
(51) of an analyzing device (50), near the individual openings of the wells (130A),
(130B) and so on by acoustic-electric converters (21), (21A), (21B) and so on
of an acoustic detection unit (20). The individual resonance frequencies of
the wells are detected from the individual detection signals of the detected sound
waves by an analyzing unit (52) of the analyzing device (50). The liquid quantities,
which were dispensed to the wells (130A), (130B) and so on, are estimated from
the individual resonance frequencies detected.
Inventors:
NAKAMURA KENTARO (JP)
Application Number:
PCT/JP2007/053621
Publication Date:
August 30, 2007
Filing Date:
February 27, 2007
Export Citation:
Assignee:
TOKYO INST TECH (JP)
NAKAMURA KENTARO (JP)
NAKAMURA KENTARO (JP)
International Classes:
G01F23/28; G01F23/00
Domestic Patent References:
| WO2005090932A1 | 2005-09-29 |
Foreign References:
| JPS61191921A | 1986-08-26 | |||
| JPH02500011A | 1990-01-11 | |||
| JP2004251823A | 2004-09-09 |
Attorney, Agent or Firm:
KOIKE, Akira et al. (Yamato Seimei Bldg. 1-7, Uchisaiwai-cho 1-chome, Chiyoda-k, Tokyo 11, JP)
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