DEVICE AND SYSTEM FOR PARTICULATE MEASUREMENT

PROBLEM TO BE SOLVED: To provide a device and system for particulate measurement, which allow for determining anomalies of electrical connection of a corona cable, ion generator, or the like without having to directly detect voltage at the corona cable or ion generator.SOLUTION: When a corona low-si...

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Main Authors GOTO YUICHI, HISADA KAORU, INOUE YOSHINORI
Format Patent
LanguageEnglish
Japanese
Published 05.04.2018
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Abstract PROBLEM TO BE SOLVED: To provide a device and system for particulate measurement, which allow for determining anomalies of electrical connection of a corona cable, ion generator, or the like without having to directly detect voltage at the corona cable or ion generator.SOLUTION: When a corona low-side current C1 is determined to be no greater than a current determination value C1min in an anomaly determination process (S130), a controller 600 of a particulate measurement device 300 of a particulate measurement system 10 provisionally determines that a corona wire 202 has a line breakage anomaly, and increments a line breakage anomaly counter CNB (S140). The controller 600 determines that the corona wire 202 has a line breakage anomaly when the line breakage anomaly counter (CNB) reaches a line breakage determination threshold (Cth) or greater (affirmative in S160) (S170).SELECTED DRAWING: Figure 6 【課題】コロナケーブルまたはイオン発生部における電圧を直接検出することなく、コロナケーブルまたはイオン発生部などでの電気的接続状態の異常状態を判定できる微粒子測定装置および微粒子測定システムを提供する。【解決手段】微粒子測定システム10の微粒子測定装置300においては、制御部600は、異常判定処理(S130)において、コロナローサイド電流C1が電流判定値C1min以下と判定する場合には、コロナ芯線202が断線した断線異常状態であると仮判定して、断線異常カウンタCNBをインクリメントする(S140)。制御部600は、断線異常カウンタCNBが断線判定閾値Cth以上となる場合(S160で肯定判定)に、コロナ芯線202が断線異常状態であると判定している(S170)。【選択図】図6
AbstractList PROBLEM TO BE SOLVED: To provide a device and system for particulate measurement, which allow for determining anomalies of electrical connection of a corona cable, ion generator, or the like without having to directly detect voltage at the corona cable or ion generator.SOLUTION: When a corona low-side current C1 is determined to be no greater than a current determination value C1min in an anomaly determination process (S130), a controller 600 of a particulate measurement device 300 of a particulate measurement system 10 provisionally determines that a corona wire 202 has a line breakage anomaly, and increments a line breakage anomaly counter CNB (S140). The controller 600 determines that the corona wire 202 has a line breakage anomaly when the line breakage anomaly counter (CNB) reaches a line breakage determination threshold (Cth) or greater (affirmative in S160) (S170).SELECTED DRAWING: Figure 6 【課題】コロナケーブルまたはイオン発生部における電圧を直接検出することなく、コロナケーブルまたはイオン発生部などでの電気的接続状態の異常状態を判定できる微粒子測定装置および微粒子測定システムを提供する。【解決手段】微粒子測定システム10の微粒子測定装置300においては、制御部600は、異常判定処理(S130)において、コロナローサイド電流C1が電流判定値C1min以下と判定する場合には、コロナ芯線202が断線した断線異常状態であると仮判定して、断線異常カウンタCNBをインクリメントする(S140)。制御部600は、断線異常カウンタCNBが断線判定閾値Cth以上となる場合(S160で肯定判定)に、コロナ芯線202が断線異常状態であると判定している(S170)。【選択図】図6
Author INOUE YOSHINORI
HISADA KAORU
GOTO YUICHI
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Snippet PROBLEM TO BE SOLVED: To provide a device and system for particulate measurement, which allow for determining anomalies of electrical connection of a corona...
SourceID epo
SourceType Open Access Repository
SubjectTerms INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
Title DEVICE AND SYSTEM FOR PARTICULATE MEASUREMENT
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