KR102274307B1 - 전기 전도율계 - Google Patents

전기 전도율계 Download PDF

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Publication number
KR102274307B1
KR102274307B1 KR1020190088547A KR20190088547A KR102274307B1 KR 102274307 B1 KR102274307 B1 KR 102274307B1 KR 1020190088547 A KR1020190088547 A KR 1020190088547A KR 20190088547 A KR20190088547 A KR 20190088547A KR 102274307 B1 KR102274307 B1 KR 102274307B1
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KR
South Korea
Prior art keywords
electrode
electrical conductivity
signal
square wave
circuit
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KR1020190088547A
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English (en)
Korean (ko)
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KR20200011372A (ko
Inventor
오사무 모모세
고이치 마마다
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아즈빌주식회사
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Publication of KR20200011372A publication Critical patent/KR20200011372A/ko
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Publication of KR102274307B1 publication Critical patent/KR102274307B1/ko

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    • 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
    • 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
    • G01N27/045—Circuits
    • 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

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
KR1020190088547A 2018-07-24 2019-07-22 전기 전도율계 KR102274307B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018138542A JP7132015B2 (ja) 2018-07-24 2018-07-24 電気伝導率計
JPJP-P-2018-138542 2018-07-24

Publications (2)

Publication Number Publication Date
KR20200011372A KR20200011372A (ko) 2020-02-03
KR102274307B1 true KR102274307B1 (ko) 2021-07-08

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ID=69383928

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190088547A KR102274307B1 (ko) 2018-07-24 2019-07-22 전기 전도율계

Country Status (3)

Country Link
JP (1) JP7132015B2 (ja)
KR (1) KR102274307B1 (ja)
CN (1) CN110780123B (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11719659B2 (en) * 2018-04-18 2023-08-08 Universiteit Twente System and method for measuring conductivity

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010032245A (ja) 2008-07-25 2010-02-12 Japan Radio Co Ltd 比誘電率・導電率測定装置

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0715490B2 (ja) * 1986-03-10 1995-02-22 横河電機株式会社 導電率計回路
JP2946265B2 (ja) 1993-06-24 1999-09-06 シャープ株式会社 キャッチホン対応型電話装置
JP2001056309A (ja) * 1999-08-20 2001-02-27 Tic Keisokuki Kogyo Kk 導電率検出電極およびそれを用いた導電率測定装置
JP2002296312A (ja) 2001-04-02 2002-10-09 Samson Co Ltd 電気伝導率センサ
TWI221195B (en) * 2001-09-06 2004-09-21 Tokyo Electron Ltd Electrostatic capacitance measuring circuit, electrostatic capacitance measuring instrument, and microphone device
JP2005148007A (ja) 2003-11-19 2005-06-09 Horiba Advanced Techno Co Ltd 導電率計
SE527091C2 (sv) * 2003-12-31 2005-12-20 Abb Ab Metod och anordning för beröringsfri mätning av tjocklek och elektriska ledningsförmåga hos ett mätobjekt
CN1821763A (zh) * 2006-03-22 2006-08-23 黄伟忠 一种溶液电导率的测量方法
JP5039630B2 (ja) 2008-04-04 2012-10-03 株式会社キーエンス 計測モジュール
CN101806776B (zh) * 2010-04-19 2012-01-11 南京航空航天大学 声板波虚拟阵列传感器系统及基于该系统的液体检测方法
DE102010060465A1 (de) * 2010-11-09 2012-05-10 Harald Riegel Verfahren zur Kalibrierung einer Leitfähigkeitsmesszelle
CN102809699B (zh) * 2012-08-24 2014-09-03 福建师范大学 溶液电导率测量涉及的电极分布电容动态测定方法
CN102818936B (zh) * 2012-08-24 2014-09-03 福建师范大学 三角波激励的电导池电极分布电容的动态测定方法
KR101621233B1 (ko) * 2014-05-26 2016-05-16 크루셜텍 (주) 터치 검출 장치 및 방법
JP2017528717A (ja) * 2014-09-15 2017-09-28 ボーンズ・インコーポレーテッドＢｏｕｒｎｓ，Ｉｎｃｏｒｐｏｒａｔｅｄ 可変の位相混合法を使用する伝導性液体の性質の測定
DE102014116505B3 (de) * 2014-11-12 2016-03-31 Finetek Co., Ltd. Elektromagnetischer Durchflussmesser mit Leitfähigkeitserfassungsfunktion mit variabler Frequenz für eine Flüssigkeit in einem Rohr
JP6481443B2 (ja) 2015-03-19 2019-03-13 横河電機株式会社 電磁流量計
PL3289342T3 (pl) * 2015-04-27 2019-08-30 Bitron S.P.A. Urządzenie do wykrywania przewodności elektrycznej cieczy, w szczególności kąpieli czyszczącej w urządzeniu czyszczącym
FR3037654B1 (fr) * 2015-06-18 2017-06-16 Ijinus Capteur d’encrassement pour isolateurs electriques
JP2017026359A (ja) 2015-07-16 2017-02-02 テクノ・モリオカ株式会社 水質センサ
CN107490726A (zh) * 2016-06-12 2017-12-19 天津工业大学 一种液体或凝胶电阻抗测量系统及其信息获取方法
CN106199204A (zh) * 2016-07-27 2016-12-07 武汉诚迈科技有限公司 一种基于微控制器的溶液电导率测量仪表
JP6851785B2 (ja) 2016-11-09 2021-03-31 アズビル株式会社 電磁流量計
CN106645306A (zh) * 2017-02-09 2017-05-10 中国科学院计算技术研究所 电导率传感器的电极装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010032245A (ja) 2008-07-25 2010-02-12 Japan Radio Co Ltd 比誘電率・導電率測定装置

Also Published As

Publication number Publication date
JP2020016500A (ja) 2020-01-30
JP7132015B2 (ja) 2022-09-06
KR20200011372A (ko) 2020-02-03
CN110780123A (zh) 2020-02-11
CN110780123B (zh) 2022-02-25

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