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Patent Searching and Data


Title:
PARTICULATE MATTER DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/216561
Kind Code:
A1
Abstract:
This particulate matter detection system is provided with: a PM sensor (20) that has a detection unit (21) for PM 8; a capacitor (3); a power supply (4); and a voltage measurement unit (5). The detection unit (21) is provided with: a pair of electrodes (2); and a deposition surface (22) which is interposed between the pair of electrodes (2), and on which PM (8) deposits. The capacitor (3) is connected in series with the detection unit (21). The power supply (4) applies a direct-current voltage to a series body (10) that is composed of the detection unit (21) and the capacitor (3), which are connected in series with each other. The voltage measurement unit (5) measures the voltage of the capacitor (3).

Inventors:
YAMAKOSHI KOTA (JP)
NAKATA SHINGO (JP)
YAMAMURA SHUSAKU (JP)
Application Number:
PCT/JP2018/018866
Publication Date:
November 29, 2018
Filing Date:
May 16, 2018
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
G01N27/04
Foreign References:
JP2012013639A2012-01-19
JP2014515488A2014-06-30
US20150153249A12015-06-04
JP2008502892A2008-01-31
Other References:
See also references of EP 3633364A4
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (JP)
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