Title:
HYPOCHLORITE CONCENTRATION MEASUREMENT METHOD, HYPOCHLORITE CONCENTRATION MEASUREMENT DEVICE, AND FOOD STERILIZING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/123890
Kind Code:
A1
Abstract:
[Problem] To provide a hypochlorite concentration measurement method with which it is possible to continuously measure the hypochlorite concentration in a measurement subject solution even if other substances are contained therein. [Solution] At least two, that is, first, second, etc. semiconductor light sources (11, 12, etc.) having different wavelengths and light-intensity detecting means (16, 17, etc.) for detecting light intensity are used. By using said components, light beams having different wavelengths are made to enter a measurement subject solution and the transmitted light intensities of the respective light beams are obtained as first, second, etc. transmitted light intensities. The hypochlorite concentration is obtained from the obtained first, second, etc. transmitted light intensities. The first, second, etc. semiconductor light sources (11, 12, etc.) can be configured from LED elements, and the light-intensity detecting means (16, 17, etc.) can be configured from photodiodes.
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Inventors:
SATO KAZUHIKO (JP)
HIRANO TERUYOSHI (JP)
MAEJIMA MITSURU (JP)
KUWAHARA KATSUMI (JP)
KOYAMA AKIRA (JP)
SUGITANI HIROMICHI (JP)
HIRANO TERUYOSHI (JP)
MAEJIMA MITSURU (JP)
KUWAHARA KATSUMI (JP)
KOYAMA AKIRA (JP)
SUGITANI HIROMICHI (JP)
Application Number:
PCT/JP2021/037279
Publication Date:
June 16, 2022
Filing Date:
October 08, 2021
Export Citation:
Assignee:
SCIENCE INNOVATION CORP (JP)
International Classes:
G01N21/33; A23B7/157; A23L3/358
Foreign References:
| JPH11319834A | 1999-11-24 | |||
| JP2019109054A | 2019-07-04 | |||
| JP2009106184A | 2009-05-21 | |||
| JPH09155358A | 1997-06-17 | |||
| US20180266131A1 | 2018-09-20 |
Attorney, Agent or Firm:
SUGITANI Hiromichi et al. (JP)
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