JP7730930B2 - 導電率センサおよび導電率測定方法 - Google Patents

導電率センサおよび導電率測定方法

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Publication number
JP7730930B2
JP7730930B2 JP2023578663A JP2023578663A JP7730930B2 JP 7730930 B2 JP7730930 B2 JP 7730930B2 JP 2023578663 A JP2023578663 A JP 2023578663A JP 2023578663 A JP2023578663 A JP 2023578663A JP 7730930 B2 JP7730930 B2 JP 7730930B2
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JP
Japan
Prior art keywords
line
conductivity
detection electrode
protective layer
conductivity sensor
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Active
Application number
JP2023578663A
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English (en)
Japanese (ja)
Other versions
JPWO2023149575A1 (enrdf_load_stackoverflow
Inventor
瑛文 森下
孝生 大西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
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NGK Insulators Ltd
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Publication of JPWO2023149575A1 publication Critical patent/JPWO2023149575A1/ja
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/22—Measuring resistance of fluids

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
JP2023578663A 2022-02-07 2023-02-06 導電率センサおよび導電率測定方法 Active JP7730930B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPPCT/JP2022/004609 2022-02-07
JP2022004609 2022-02-07
PCT/JP2023/003777 WO2023149575A1 (ja) 2022-02-07 2023-02-06 導電率センサおよび導電率測定方法

Publications (2)

Publication Number Publication Date
JPWO2023149575A1 JPWO2023149575A1 (enrdf_load_stackoverflow) 2023-08-10
JP7730930B2 true JP7730930B2 (ja) 2025-08-28

Family

ID=87552389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023578663A Active JP7730930B2 (ja) 2022-02-07 2023-02-06 導電率センサおよび導電率測定方法

Country Status (2)

Country Link
JP (1) JP7730930B2 (enrdf_load_stackoverflow)
WO (1) WO2023149575A1 (enrdf_load_stackoverflow)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009002693A (ja) 2007-06-19 2009-01-08 Mitsubishi Heavy Ind Ltd オイル劣化検出装置
JP2011080814A (ja) 2009-10-06 2011-04-21 Mitsubishi Heavy Ind Ltd 工作機械用潤滑油の劣化検出装置および劣化検出方法
JP2019109224A (ja) 2017-12-18 2019-07-04 スティヒティング・イメック・ネーデルラントＳｔｉｃｈｔｉｎｇ ＩＭＥＣ Ｎｅｄｅｒｌａｎｄ 導電率センサ
WO2021241628A1 (ja) 2020-05-29 2021-12-02 日本碍子株式会社 静電容量式センサ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0629869B2 (ja) * 1987-01-06 1994-04-20 日本碍子株式会社 電気伝導度測定用端子
DE3720189C1 (de) * 1987-06-16 1988-12-29 Endress Hauser Gmbh Co Taupunkt-Sensor
JPH11304856A (ja) * 1998-04-24 1999-11-05 Horiba Ltd 導電率測定方法および測定装置
JP4455286B2 (ja) * 2004-11-09 2010-04-21 株式会社日本自動車部品総合研究所 静電容量式湿度センサ
JP4821560B2 (ja) * 2006-10-27 2011-11-24 株式会社デンソー 液体性状センサ
JP2009092633A (ja) * 2007-10-12 2009-04-30 Denso Corp インピーダンスセンサ
CN109983328B (zh) * 2016-11-23 2022-03-18 罗伯特·博世有限公司 气体传感器和用于探测气体的方法
JP7071723B2 (ja) * 2017-08-03 2022-05-19 哲男 吉田 複素誘電率測定用回路、複素誘電率測定装置及び複素誘電率の測定方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009002693A (ja) 2007-06-19 2009-01-08 Mitsubishi Heavy Ind Ltd オイル劣化検出装置
JP2011080814A (ja) 2009-10-06 2011-04-21 Mitsubishi Heavy Ind Ltd 工作機械用潤滑油の劣化検出装置および劣化検出方法
JP2019109224A (ja) 2017-12-18 2019-07-04 スティヒティング・イメック・ネーデルラントＳｔｉｃｈｔｉｎｇ ＩＭＥＣ Ｎｅｄｅｒｌａｎｄ 導電率センサ
WO2021241628A1 (ja) 2020-05-29 2021-12-02 日本碍子株式会社 静電容量式センサ

Also Published As

Publication number Publication date
WO2023149575A1 (ja) 2023-08-10
JPWO2023149575A1 (enrdf_load_stackoverflow) 2023-08-10

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