JP2018151364A - 流体性状検出装置 - Google Patents
流体性状検出装置 Download PDFInfo
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- JP2018151364A JP2018151364A JP2017049789A JP2017049789A JP2018151364A JP 2018151364 A JP2018151364 A JP 2018151364A JP 2017049789 A JP2017049789 A JP 2017049789A JP 2017049789 A JP2017049789 A JP 2017049789A JP 2018151364 A JP2018151364 A JP 2018151364A
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- 238000001514 detection method Methods 0.000 title claims abstract description 368
- 239000012530 fluid Substances 0.000 title claims abstract description 170
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 239000010720 hydraulic oil Substances 0.000 description 82
- 239000003921 oil Substances 0.000 description 25
- 238000005259 measurement Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
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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
- G01N27/08—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
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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
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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
- G01N27/08—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
- G01N27/10—Investigation or analysis specially adapted for controlling or monitoring operations or for signalling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
-
- 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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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Description
また、第1の発明では、第1電極に電圧が印加された場合と、第1電極とは形状が異なる第2電極に電圧が印加された場合と、において別々に検出対象流体の電気的特性の検出が行われ、それぞれの検出値に基づいて性状値が演算される。このように、第1電極に電圧が印加された場合と第2電極に電圧が印加された場合とにおいて別々に性状値を演算することによって、より精度よく検出対象流体の性状値を検出することが可能となる。
Claims (6)
- 検出対象流体の性状を検出する流体性状検出装置であって、
前記検出対象流体に臨んで配置され前記検出対象流体の電気的特性を検出する検出部と、
前記検出部で検出された検出値に基づいて前記検出対象流体の性状値を演算する演算部と、
前記演算部で演算された前記性状値を記憶する記憶部と、を備え、
前記記憶部には、前記検出対象流体よりも導電率が小さい基準流体の電気的特性が前記検出部によって検出された検出値が基準検出値として予め記憶されており、
前記演算部は、前記検出部から出力された前記検出対象流体の前記検出値から前記基準検出値が差し引かれた値に基づいて前記検出対象流体の前記性状値を演算することを特徴とする流体性状検出装置。 - 前記検出部は、前記検出値を増幅処理する増幅素子を有することを特徴とする請求項1に記載の流体性状検出装置。
- 前記検出部は、前記検出対象流体に露出する一対の電極を有し、
前記一対の電極は、第1電極と、前記第1電極に対向して配置され前記第1電極とは形状が異なる第2電極と、を有し、
前記演算部は、前記一対の電極が前記検出対象流体に露出した状態において、前記第1電極に電圧が印加されたときに前記検出部で検出される前記検出対象流体の第1検出値に基づいて前記検出対象流体の第1性状値を演算し、前記第2電極に電圧が印加されたときに前記検出部で検出される前記検出対象流体の第2検出値に基づいて前記検出対象流体の第2性状値を演算することを特徴とする請求項1または2に記載の流体性状検出装置。 - 前記記憶部には、前記一対の電極が前記基準流体に露出した状態において、前記第1電極に電圧が印加されたときに前記検出部で検出された第1基準検出値と、前記第2電極に電圧が印加されたときに前記検出部で検出された第2基準検出値と、が予め記憶されており、
前記演算部は、前記一対の電極が前記検出対象流体に露出した状態において、前記第1電極に電圧が印加されたときには、前記第1検出値から前記第1基準検出値が差し引かれた値に基づき前記第1性状値を演算し、前記第2電極に電圧が印加されたときには、前記第2検出値から前記第2基準検出値が差し引かれた値に基づき前記第2性状値を演算することを特徴とする請求項3に記載の流体性状検出装置。 - 前記第1電極は、円柱状の棒状部材であり、
前記第2電極は、前記第1電極の外周を覆うように、前記第1電極と同軸上に配置される筒状部材であることを特徴とする請求項3または4に記載の流体性状検出装置。 - 前記基準流体は、前記検出対象流体の導電率の1000分の1以下の導電率を有することを特徴とする請求項1から5の何れか1つに記載の流体性状検出装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017049789A JP6401811B2 (ja) | 2017-03-15 | 2017-03-15 | 流体性状検出装置 |
US16/493,761 US11385194B2 (en) | 2017-03-15 | 2018-03-01 | Fluid property detection device |
PCT/JP2018/007800 WO2018168498A1 (ja) | 2017-03-15 | 2018-03-01 | 流体性状検出装置 |
CN201880018134.2A CN110418959A (zh) | 2017-03-15 | 2018-03-01 | 流体性状检测装置 |
EP18766959.3A EP3598117B1 (en) | 2017-03-15 | 2018-03-01 | Fluid property detection device |
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JP2017049789A JP6401811B2 (ja) | 2017-03-15 | 2017-03-15 | 流体性状検出装置 |
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JP2018151364A true JP2018151364A (ja) | 2018-09-27 |
JP6401811B2 JP6401811B2 (ja) | 2018-10-10 |
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US (1) | US11385194B2 (ja) |
EP (1) | EP3598117B1 (ja) |
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WO (1) | WO2018168498A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2020067320A (ja) * | 2018-10-23 | 2020-04-30 | Kyb株式会社 | センサ |
JP2020067319A (ja) * | 2018-10-23 | 2020-04-30 | Kyb株式会社 | センサ |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US11579106B2 (en) * | 2019-07-01 | 2023-02-14 | Texas Instruments Incorporated | High accuracy impedance measurement |
US11733278B2 (en) * | 2020-08-27 | 2023-08-22 | Jenariah, Llc | Conductivity measurement device |
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- 2018-03-01 EP EP18766959.3A patent/EP3598117B1/en active Active
- 2018-03-01 WO PCT/JP2018/007800 patent/WO2018168498A1/ja unknown
- 2018-03-01 CN CN201880018134.2A patent/CN110418959A/zh active Pending
- 2018-03-01 US US16/493,761 patent/US11385194B2/en active Active
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JPS60159642A (ja) * | 1984-01-10 | 1985-08-21 | アナテル・インスツルメント・コーポレーシヨン | 超純水中の有機炭素含量を測定するための方法及びこの方法の実施に直接使用する装置 |
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EP3598117B1 (en) | 2023-08-02 |
EP3598117A4 (en) | 2021-01-13 |
CN110418959A (zh) | 2019-11-05 |
EP3598117A1 (en) | 2020-01-22 |
US11385194B2 (en) | 2022-07-12 |
WO2018168498A1 (ja) | 2018-09-20 |
JP6401811B2 (ja) | 2018-10-10 |
US20200033281A1 (en) | 2020-01-30 |
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