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Title:
DEVICE FOR DETECTING NUMBER OF FINE PARTICLES
Document Type and Number:
WIPO Patent Application WO/2018/139345
Kind Code:
A1
Abstract:
This device 10 for detecting the number of fine particles has, provided in a vent pipe 12, an electrical charge generating element 20, a collecting device 40, a surplus electrical charge removing device 50, and a number measurement device 60. The electrical charge generating element 20 is provided with a needle-like electrode 22 and a counter electrode 24, and adds electrical charges 18 to fine particles 16 in a gas introduced into the vent pipe 12, to obtain charged fine particles P. Furthermore, the counter electrode 24 of the electrical charge generating element 20 is used as a heater by passing a current therethrough.

Inventors:
MIZUNO KAZUYUKI (JP)
OKUMURA HIDEMASA (JP)
KANNO KEIICHI (JP)
Application Number:
PCT/JP2018/001499
Publication Date:
August 02, 2018
Filing Date:
January 19, 2018
Export Citation:
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Assignee:
NGK INSULATORS LTD (JP)
International Classes:
G01N15/06; G01N27/60; H01T23/00
Domestic Patent References:
WO2015146456A12015-10-01
WO2008111403A12008-09-18
Foreign References:
JP2013170914A2013-09-02
JP2016205952A2016-12-08
JP2003098136A2003-04-03
JP2006164592A2006-06-22
JP2008032686A2008-02-14
Attorney, Agent or Firm:
ITEC INTERNATIONAL PATENT FIRM (JP)
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