Title:
GAS CONCENTRATION DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/145042
Kind Code:
A1
Abstract:
A gas concentration detection device (1) comprises a first element unit (2), a first detection unit (51), a second element unit (3), a second detection unit (52), and a sensitivity correction unit (54). A gas (G) being detected includes a common gas component sensitive to both the first detection unit (51) and the second detection unit (52). The sensitivity correction unit (54) is configured to correct a second gas component concentration detected by the second detection unit (52) on the basis of a time difference between a first response time due to the first detection unit (51) and a second response time due to the second detection unit (52) when a change greater than or equal to a reference change amount in the concentration of the common gas component is detected by the first detection unit (51) and the second detection unit (52).
Inventors:
HARADA TOSHIHIKO (JP)
TAKIZAWA KENSUKE (JP)
ICHIKAWA HIROKI (JP)
TAKIZAWA KENSUKE (JP)
ICHIKAWA HIROKI (JP)
Application Number:
PCT/JP2019/049087
Publication Date:
July 16, 2020
Filing Date:
December 16, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F01N3/00; G01N27/26; G01N27/416
Foreign References:
| JP2013040959A | 2013-02-28 | |||
| JP2010266310A | 2010-11-25 |
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (JP)
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