WO1990007708A3 - Capteur d'humidite capacitif - Google Patents

Capteur d'humidite capacitif Download PDF

Info

Publication number
WO1990007708A3
WO1990007708A3 PCT/NL1989/000100 NL8900100W WO9007708A3 WO 1990007708 A3 WO1990007708 A3 WO 1990007708A3 NL 8900100 W NL8900100 W NL 8900100W WO 9007708 A3 WO9007708 A3 WO 9007708A3
Authority
WO
WIPO (PCT)
Prior art keywords
conducting
layer
humidity sensor
capacitive humidity
moisture
Prior art date
Application number
PCT/NL1989/000100
Other languages
English (en)
Other versions
WO1990007708A2 (fr
Inventor
Pieter Paulus Jozef Schmitz
Original Assignee
Flucon Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flucon Bv filed Critical Flucon Bv
Priority to JP2502194A priority Critical patent/JP2846948B2/ja
Priority to DE68913764T priority patent/DE68913764T2/de
Priority to AT90901043T priority patent/ATE102708T1/de
Publication of WO1990007708A2 publication Critical patent/WO1990007708A2/fr
Publication of WO1990007708A3 publication Critical patent/WO1990007708A3/fr
Priority to NO912492A priority patent/NO303092B1/no
Priority to DK911258A priority patent/DK125891D0/da
Priority to FI913165A priority patent/FI94084C/fi

Links

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
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
    • G01N27/225—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity by using hygroscopic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

Le capteur d'humidité capacitif décrit comprend un substrat, une couche inférieure conductrice imperméable à l'humidité comme première plaque de condensateur, une couche diélectrique et une couche supérieure conductrice perméable à l'humidité comme seconde plaque de condensateur, ainsi que des fils de connexion associés aux première et seconde plaques de condensateur, grâce auxquels on peut mesurer les variations de la constante diélectrique et, par conséquent, de la valeur de capacitance, dues à l'absorption des molécules d'eau. Le substrat est constitué par un stratifié en cuivre flexible, dans lequel au moins la couche inférieure conductrice est gravée, et la couche supérieure conductrice comporte une couche imprimée solide présentant une structure quadrillée conductrice, laquelle est imprimée au moyen d'encre conductrice.
PCT/NL1989/000100 1988-12-30 1989-12-28 Capteur d'humidite capacitif WO1990007708A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2502194A JP2846948B2 (ja) 1988-12-30 1989-12-28 静電容量式の湿度センサー
DE68913764T DE68913764T2 (de) 1988-12-30 1989-12-28 Kapazitiver feuchtigkeitsfühler.
AT90901043T ATE102708T1 (de) 1988-12-30 1989-12-28 Kapazitiver feuchtigkeitsfuehler.
NO912492A NO303092B1 (no) 1988-12-30 1991-06-25 Kapasitiv fuktighetssensor
DK911258A DK125891D0 (da) 1988-12-30 1991-06-26 Kapacitiv fugtsensor
FI913165A FI94084C (fi) 1988-12-30 1991-06-28 Kapasitiivinen kosteusanturi

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8803223 1988-12-30
NL8803223A NL8803223A (nl) 1988-12-30 1988-12-30 Capacitieve vochtsensor.

Publications (2)

Publication Number Publication Date
WO1990007708A2 WO1990007708A2 (fr) 1990-07-12
WO1990007708A3 true WO1990007708A3 (fr) 1990-09-07

Family

ID=19853464

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1989/000100 WO1990007708A2 (fr) 1988-12-30 1989-12-28 Capteur d'humidite capacitif

Country Status (12)

Country Link
US (1) US5283711A (fr)
EP (1) EP0451183B1 (fr)
JP (1) JP2846948B2 (fr)
AT (1) ATE102708T1 (fr)
CA (1) CA2006948A1 (fr)
DE (1) DE68913764T2 (fr)
DK (1) DK125891D0 (fr)
ES (1) ES2050428T3 (fr)
FI (1) FI94084C (fr)
NL (1) NL8803223A (fr)
NO (1) NO303092B1 (fr)
WO (1) WO1990007708A2 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI84862C (fi) * 1989-08-11 1992-01-27 Vaisala Oy Kapacitiv fuktighetsgivarkonstruktion och foerfarande foer framstaellning daerav.
US5402075A (en) * 1992-09-29 1995-03-28 Prospects Corporation Capacitive moisture sensor
JP2807392B2 (ja) * 1993-04-26 1998-10-08 株式会社ミツトヨ ノギス
US5824889A (en) * 1997-03-06 1998-10-20 Kavlico Corporation Capacitive oil deterioration and contamination sensor
US5929754A (en) * 1997-12-03 1999-07-27 Kavlico Corporation High-sensitivity capacitive oil deterioration and level sensor
US6323659B1 (en) 1998-04-29 2001-11-27 General Electric Company Material for improved sensitivity of stray field electrodes
US6114863A (en) * 1998-04-29 2000-09-05 General Electric Company Method for determining the presence of water in materials
SG115469A1 (en) * 2002-04-26 2005-10-28 Sony Corp Moisture detection methods and devices
US6724612B2 (en) 2002-07-09 2004-04-20 Honeywell International Inc. Relative humidity sensor with integrated signal conditioning
DE10318956A1 (de) * 2003-04-26 2004-11-11 Kanesho Soil Treatment Bvba Verfahren und Vorrichtung zum Nachweis von flüchtigen Analyten in Luftproben
NO327090B1 (no) * 2007-06-28 2009-04-20 Asle Ingmar Johnsen Detektorsystem
EP2259712A1 (fr) * 2008-03-03 2010-12-15 Geisert Square Gmbh Système et procédé d'analyse de disque intervertébral
CA2798487A1 (fr) 2010-05-10 2011-11-17 Pure Imagination Llc Detecteurs tactiles capacitifs a film mince a une face
JP2014500517A (ja) * 2010-06-17 2014-01-09 ピュア・イマジネーション・エルエルシー 一面式薄膜容量性タッチセンサを有する楽器
US9092096B2 (en) 2010-07-26 2015-07-28 Pure Imagination, LLC Low-cost mass-produced touch sensors
US8378203B2 (en) 2010-07-27 2013-02-19 Pure Imagination, LLC Simulated percussion instrument
EP3586114A1 (fr) * 2017-02-21 2020-01-01 Invisense AB Dispositif de type capteur de mesure, système de mesure et procédé de mesure pour détecter la présence d'un liquide et/ou d'humidité
RU190945U1 (ru) * 2018-11-29 2019-07-16 Общество с ограниченной ответственностью "Газпром трансгаз Ухта" Сорбционно-емкостной чувствительный элемент влажности газа
US11385083B2 (en) * 2018-12-07 2022-07-12 Mohammad Kabany Method for measuring and/or processing measured pressure and/or humidity values
CN109916971B (zh) * 2019-04-25 2022-05-17 云南中烟工业有限责任公司 一种基于电容的新鲜烟叶水分的快速无损检测方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2327536A1 (fr) * 1975-10-09 1977-05-06 Linde Ag Dispositif permettant de deceler la presence d'elements liquides dans des gaz, notamment pour compresseur lubrifie a l'huile
DE3203990A1 (de) * 1982-02-05 1983-08-18 Siemens AG, 1000 Berlin und 8000 München Verfahren zum einstellen der kapazitaet von feuchtesensoren
EP0094266A2 (fr) * 1982-05-11 1983-11-16 Direction De La Meteorologie Du Ministere Des Transports Procédé de fabrication d'un capteur de température ou d'humidité du type à couches minces et capteurs obtenus
FR2554593A1 (fr) * 1983-11-08 1985-05-10 Comp Generale Electricite Tete de dosage electrochimique a electrodes serigraphiees
GB2159956A (en) * 1984-05-15 1985-12-11 Sharp Kk Moisture sensors and method of producing the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486656A1 (fr) * 1980-07-09 1982-01-15 Commissariat Energie Atomique Hygrometre capacitif
SU1223117A1 (ru) * 1984-04-28 1986-04-07 Ленинградский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета Преобразователь влажности газов
US4564882A (en) * 1984-08-16 1986-01-14 General Signal Corporation Humidity sensing element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2327536A1 (fr) * 1975-10-09 1977-05-06 Linde Ag Dispositif permettant de deceler la presence d'elements liquides dans des gaz, notamment pour compresseur lubrifie a l'huile
DE3203990A1 (de) * 1982-02-05 1983-08-18 Siemens AG, 1000 Berlin und 8000 München Verfahren zum einstellen der kapazitaet von feuchtesensoren
EP0094266A2 (fr) * 1982-05-11 1983-11-16 Direction De La Meteorologie Du Ministere Des Transports Procédé de fabrication d'un capteur de température ou d'humidité du type à couches minces et capteurs obtenus
FR2554593A1 (fr) * 1983-11-08 1985-05-10 Comp Generale Electricite Tete de dosage electrochimique a electrodes serigraphiees
GB2159956A (en) * 1984-05-15 1985-12-11 Sharp Kk Moisture sensors and method of producing the same

Also Published As

Publication number Publication date
FI94084C (fi) 1995-07-10
DK125891A (da) 1991-06-26
NO912492L (no) 1991-06-25
NL8803223A (nl) 1990-07-16
WO1990007708A2 (fr) 1990-07-12
JP2846948B2 (ja) 1999-01-13
ATE102708T1 (de) 1994-03-15
NO303092B1 (no) 1998-05-25
ES2050428T3 (es) 1994-05-16
FI913165A0 (fi) 1991-06-28
CA2006948A1 (fr) 1990-06-30
FI94084B (fi) 1995-03-31
NO912492D0 (no) 1991-06-25
US5283711A (en) 1994-02-01
EP0451183A1 (fr) 1991-10-16
DE68913764T2 (de) 1994-06-23
DK125891D0 (da) 1991-06-26
JPH04502965A (ja) 1992-05-28
DE68913764D1 (de) 1994-04-14
EP0451183B1 (fr) 1994-03-09

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