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Title:
粒子状物質検出装置及び粒子状物質検出方法
Document Type and Number:
Japanese Patent JP5081897
Kind Code:
B2
Abstract:
A particulate matter detection device (100) that detects particulate matter contained in gas includes a collection electrode (1) that collects the particulate matter, a discharge electrode (2) that allows a corona discharge (10) to occur when a voltage is applied between the collection electrode (1) and the discharge electrode (2), a measurement electrode (5), the impedance between the collection electrode (1) and the measurement electrode (5) changing when the collection electrode (1) has collected the particulate matter, and a measurement section (3) that detects a change in the impedance between the collection electrode (1) and the measurement electrode (5), the particulate matter detection device detecting the particulate matter by charging the particulate matter contained in the gas by utilizing the corona discharge (10), collecting the charged particulate matter by the collection electrode (1) by utilizing an electrostatic force, and detecting a change in the impedance between the collection electrode (1) that has collected the particulate matter and the measurement electrode (5) using the measurement section (3). The particulate matter detection device and a particulate matter detection method using the particulate matter detection device can simply detect particulate matter with a small measurement error.

Inventors:
Ken Sakuma
Fujioka Yasumasa
Atsushi Kondo
Application Number:
JP2009504096A
Publication Date:
November 28, 2012
Filing Date:
March 14, 2008
Export Citation:
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Assignee:
Nippon Insulator Co., Ltd.
International Classes:
G01N27/02; G01N27/60; G01N27/68
Domestic Patent References:
JPS61195462U1986-12-05
JPH0216445A1990-01-19
JP2004170287A2004-06-17
JP2003315244A2003-11-06
JPS60144945U1985-09-26
JPS61142451A1986-06-30
JPS63286753A1988-11-24
Attorney, Agent or Firm:
Ippei Watanabe
Koji Kikawa
Chongqing Sugano
Hiroyuki Sato
Shigeru Koike