Particulate sensor and method for manufacturing particulate sensor

A particulate sensor (10) to be attached to a gas flow pipe EP through which a gas to be measured EG containing particulates S flows. The particulate sensor (10) includes a gas introduction discharge pipe (31); a discharge element (60) including a discharge electrode member (62) maintained at a disc...

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Bibliographic Details
Main Authors Tashima, Keisuke, Motomura, Masayuki, Osawa, Norimasa
Format Patent
LanguageEnglish
Published 04.05.2021
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:A particulate sensor (10) to be attached to a gas flow pipe EP through which a gas to be measured EG containing particulates S flows. The particulate sensor (10) includes a gas introduction discharge pipe (31); a discharge element (60) including a discharge electrode member (62) maintained at a discharge potential DV and which electrifies particulates contained in the gas under measurement, and a sealed portion (60C) located on a proximal end side GK of an element distal end portion and in which the discharge electrode member is disposed and insulated from the outer surface (60CS) thereof; a surrounding member (38, 39) maintained at a first potential SGND; and an electrically conductive glass seal (37) which establishes electrical communication between the surrounding member and the pipe (31), and is in close contact with the outer surface of the sealed portion of the discharge element to provide gastight sealing.
Bibliography:Application Number: US201816106367