Gas separation: apparatus – Electric field separation apparatus – With control means responsive to sensed condition
Reexamination Certificate
2011-01-04
2011-01-04
Chiesa, Richard L (Department: 1797)
Gas separation: apparatus
Electric field separation apparatus
With control means responsive to sensed condition
C055S282300, C055SDIG010, C095S003000, C095S006000, C095S007000, C095S073000, C095S074000, C096S022000, C096S023000, C096S024000, C096S028000
Reexamination Certificate
active
07862649
ABSTRACT:
A particulate matter detection device includes a collection electrode that collects the particulate matter, a discharge electrode that allows a corona discharge to occur when a voltage is applied between the collection electrode and the discharge electrode, a measurement electrode, the impedance between the collection electrode and the measurement electrode changing when the collection electrode has collected the particulate matter, and a measurement section that detects a change in the impedance between the collection electrode and the measurement electrode, the particulate matter detection device detecting the particulate matter by charging the particulate matter contained in the gas by utilizing the corona discharge, collecting the charged particulate matter by the collection electrode by utilizing an electrostatic force, and detecting a change in the impedance between the collection electrode that has collected the particulate matter and the measurement electrode using the measurement section.
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Fujioka Yasumasa
Kondo Atsuo
Sakuma Takeshi
Burr & Brown
Chiesa Richard L
NGK Insulators Ltd.
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