Title:
METHOD AND DEVICE FOR IMPROVING SIGNAL-TO-NOISE RATIO OF SENSOR OUTPUT SIGNAL
Document Type and Number:
WIPO Patent Application WO/2023/210080
Kind Code:
A1
Abstract:
The objective of the present invention is to improve an SN ratio of a sensor output signal obtained by periodically switching and applying, to a sensor, a reference fluid and a sample fluid. According to an aspect of the present invention, a temporal interval that can be used for measurement is divided into a plurality of temporal intervals and, for each of these temporal intervals, the periodical switching described above is performed, thereby accumulating a sensor output signal obtained for each temporal interval. The drawing illustrated along with this abstract illustrates a measurement example of an output signal waveform in a case in which a number of divisions N is changed when the entire time interval that can be used for measurement is 120 seconds. According to the true frequency components of the output signal, which are components other than noise components in the sensor output signal, the SN ratio of the signal of the accumulation result (lower half in the drawing) can be improved in comparison with a sensor output signal obtained in an individual temporal interval (upper half in the drawing).
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Inventors:
IMAMURA GAKU (JP)
YOSHIKAWA GENKI (JP)
MINAMI KOSUKE (JP)
NEMOTO TAKAHIRO (JP)
MATOBA MASAAKI (JP)
YOSHIKAWA GENKI (JP)
MINAMI KOSUKE (JP)
NEMOTO TAKAHIRO (JP)
MATOBA MASAAKI (JP)
Application Number:
PCT/JP2023/002001
Publication Date:
November 02, 2023
Filing Date:
January 24, 2023
Export Citation:
Assignee:
NAT INST MATERIALS SCIENCE (JP)
International Classes:
G01N1/00; G01N5/02
Domestic Patent References:
| WO2021186532A1 | 2021-09-23 |
Foreign References:
| JP2019035613A | 2019-03-07 | |||
| US20130115137A1 | 2013-05-09 |
Attorney, Agent or Firm:
TSUZUKI Noriaki (JP)
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