WO2010079206A4 - Accumulating moisture sensor - Google Patents

Accumulating moisture sensor Download PDF

Info

Publication number
WO2010079206A4
WO2010079206A4 PCT/EP2010/050134 EP2010050134W WO2010079206A4 WO 2010079206 A4 WO2010079206 A4 WO 2010079206A4 EP 2010050134 W EP2010050134 W EP 2010050134W WO 2010079206 A4 WO2010079206 A4 WO 2010079206A4
Authority
WO
WIPO (PCT)
Prior art keywords
moisture
sensor device
electrode
absorbing layer
layer
Prior art date
Application number
PCT/EP2010/050134
Other languages
German (de)
French (fr)
Other versions
WO2010079206A1 (en
Inventor
Heiko Fietzek
Ulrike Heckenberger
Meinhard Meyer
Jürgen STEINWANDEL
Original Assignee
Eads Deutschland Gmbh
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 Eads Deutschland Gmbh filed Critical Eads Deutschland Gmbh
Publication of WO2010079206A1 publication Critical patent/WO2010079206A1/en
Publication of WO2010079206A4 publication Critical patent/WO2010079206A4/en

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)

Abstract

The invention relates to a sensor device 1 for monitoring the state and corrosion in, for example, an aircraft, comprising a capacitor arrangement 20 and a moisture-binding layer 24. The capacitor arrangement 20 is designed to change the capacitance thereof as result of water absorption of the moisture-binding layer 24. The moisture-binding layer 24 can be arranged on the capacitor arrangement 20 in such a way that the water is absorbed irreversibly. In this way, an accumulating moisture sensor can be realized.

Claims

GEÄNDERTE ANSPRÜCHE beim Internationalen Büro eingegangen am 29 Juli 2010 (29.07.2010)N e u e A n s p r ü c h e AMENDED CLAIMS received by the International Bureau on 29 July 2010 (29.07.2010) New appendix
1. Sensorvorrichtung (10) zur Zustands- und Korrosionsüberwachung, wobei die Sensorvorrichtung aufweist: eine Kondensatoranordnung (20), mit einer ersten Elektrode (21), einer zweiten Elektrode (22), einer feuchtigkeitsaufnehmenden Schicht (24), die bezüglich der ersten Elektrode (21) und der zweiten Elektrode (22) derart angeordnet ist, dass die Kondensatoranordnung (20) bei einer Feuchtigkeitsaufnahme der feuchtigkeitsaufnehmenden Schicht (24) seine Kapazität ändert und eine feuchtigkeitsdiffusionsvermindernde Barriere (26), die die feuchtigkeitsaufnehmende Schicht (24) abdeckt, wobei zwischen der feuchtigkeitsdiffusionsvermindernden Barriere (26) und der feuchtigkeitsaufnehmenden Schicht (24) eine feuchtigkeitstransportierende Schicht (25) vorgesehen ist.A sensor device (10) for condition and corrosion monitoring, the sensor device comprising: a capacitor assembly (20) having a first electrode (21), a second electrode (22), a moisture-receiving layer (24) relative to the first electrode (21) and the second electrode (22) are arranged so that the capacitor assembly (20) changes its capacitance upon moisture absorption of the moisture-absorbing layer (24) and a moisture diffusion-reducing barrier (26) covering the moisture-absorbing layer (24) between the moisture diffusion-reducing barrier (26) and the moisture-absorbing layer (24) a moisture-transporting layer (25) is provided.
2. Sensorvorrichtung nach Anspruch 1, wobei die Kondensatoranordnung (20) als ein Interdigitalkondensator ausgebildet ist und die erste Elektrode (21) und die zweite Elektrode (22) in einer Fläche (7) ausgebildet sind, wobei die feuchtigkeitsaufnehmende Schicht (24) flächig und elektrisch isoliert zu der ersten Elektrode (21) und der zweiten Elektrode (22) auf der Fläche (7) angeordnet ist.2. Sensor device according to claim 1, wherein the capacitor arrangement (20) is formed as an interdigital capacitor and the first electrode (21) and the second electrode (22) in a surface (7) are formed, wherein the moisture-absorbing layer (24) and surface electrically isolated from the first electrode (21) and the second electrode (22) on the surface (7) is arranged.
3. Sensorvorrichtung nach Anspruch 2, wobei zwischen der ersten Elektrode (21) und der zweiten Elektrode (22) einerseits und der feuchtigkeitsaufnehmenden Schicht (24) andererseits eine feuchtigkeitsundurchlässige Schicht (23) vorgesehen ist. 3. Sensor device according to claim 2, wherein between the first electrode (21) and the second electrode (22) on the one hand and the moisture-absorbing layer (24) on the other hand, a moisture-impermeable layer (23) is provided.
4. Sensorvorrichtung nach einem der Ansprüche 1 bis 3, wobei die feuchtigkeitsaufnehmende Schicht (24) ein hygroskopisches Material aufweist.4. Sensor device according to one of claims 1 to 3, wherein the moisture-absorbing layer (24) comprises a hygroscopic material.
5. Sensorvorrichtung nach einem der Ansprüche 1 bis 4, wobei die feuchtigkeitsaufnehmende Schicht (24) ein Polymer mit eingebundenen Partikeln aus einem hygroskopischen Material aufweist.5. Sensor device according to one of claims 1 to 4, wherein the moisture-absorbing layer (24) comprises a polymer with incorporated particles of a hygroscopic material.
6. Sensorvorrichtung nach einem der Ansprüche 1 bis 5, wobei die feuchtigkeitsaufnehmende Schicht (24) ausgelegt ist eine Feuchtigkeit irreversibel aufzunehmen.6. Sensor device according to one of claims 1 to 5, wherein the moisture-absorbing layer (24) is adapted to absorb moisture irreversibly.
7. Sensorvorrichtung nach einem der Ansprüche 1 bis 6, wobei die feuchtigkeitsaufnehmende Schicht (24) als feuchtigkeitsaufnehmendes Material einen nanoskaligen Adsorbenten aufweist.7. Sensor device according to one of claims 1 to 6, wherein the moisture-absorbing layer (24) has a nanoscale adsorbent as a moisture-absorbing material.
8. Sensorvorrichtung nach einem der Ansprüche 1 bis 7, wobei die feuchtigkeitsaufnehmende Schicht (24) als feuchtigkeitsaufnehmendes Material ein Material aufweist aus einer Gruppe bestehend aus Zeolith, Silicagel, Calziumchlorid, Alkalihydroxid, Kalziumoxid und Magnesiumoxid.8. A sensor device according to any one of claims 1 to 7, wherein the moisture-absorbing layer (24) comprises, as moisture-absorbing material, a material selected from the group consisting of zeolite, silica gel, calcium chloride, alkali hydroxide, calcium oxide and magnesium oxide.
9. Sensorvorrichtung nach Anspruch 1, wobei die feuchtigkeitstransportierende Schicht (25) ein Polymer aufweist.The sensor device of claim 1, wherein the moisture transporting layer (25) comprises a polymer.
10. Sensorvorrichtung nach einem der Ansprüche 5 oder 9, wobei das Polymer ein Material aufweist aus einer Gruppe bestehend aus Polysulfon und Phtalocyanin.10. A sensor device according to any one of claims 5 or 9, wherein the polymer comprises a material selected from a group consisting of polysulfone and phthalocyanine.
11. Sensorvorrichtung nach einem der Ansprüche 1 bis 10, wobei die feuchtigkeitsdiffusionsvermindernde Barriere (26) als eine separate Schicht ausgebildet ist. 11. Sensor device according to one of claims 1 to 10, wherein the moisture diffusion-reducing barrier (26) is formed as a separate layer.
12. Sensorvorrichtung nach Anspruch 11, wobei die feuchtigkeitsdiffusionsvermindernde Barriere (26) ein Material aufweist aus einer Gruppe bestehend aus Polytetrafluorethylen, modifiziertes Polytetrafluorethylen, Polyäthylen und Polypropylen.12. A sensor device according to claim 11, wherein the moisture diffusion-reducing barrier (26) comprises a material selected from a group consisting of polytetrafluoroethylene, modified polytetrafluoroethylene, polyethylene and polypropylene.
13. Sensorvorrichtung nach einem der Ansprüche 1 bis 10, wobei die feuchtigkeitsdiffusionsvermindernde Barriere (26) durch eine modifizierte Oberfläche einer Schicht (24, 25) ausgebildet ist.13. Sensor device according to one of claims 1 to 10, wherein the moisture diffusion-reducing barrier (26) by a modified surface of a layer (24, 25) is formed.
14. Sensorvorrichtung nach Anspruch 13, wobei die modifizierte Oberfläche eine plasmabehandelte Oberfläche ist.14. The sensor device of claim 13, wherein the modified surface is a plasma treated surface.
15. Sensorvorrichtung nach einem der Ansprüche 1 bis 14, ferner mit einer Induktivität (30), wobei die Kondensatoranordnung (20) und die Induktivität (30) als Teile eines Schwingkreises ausgebildet sind.15. Sensor device according to one of claims 1 to 14, further comprising an inductor (30), wherein the capacitor arrangement (20) and the inductance (30) are formed as parts of a resonant circuit.
16. RFID mit einem Schwingkreis mit einer Sensorvorrichtung nach Anspruch 15. 16. RFID with a resonant circuit with a sensor device according to claim 15.
PCT/EP2010/050134 2009-01-08 2010-01-08 Accumulating moisture sensor WO2010079206A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910004393 DE102009004393A1 (en) 2009-01-08 2009-01-08 Accumulating humidity sensor
DE102009004393.4 2009-01-08

Publications (2)

Publication Number Publication Date
WO2010079206A1 WO2010079206A1 (en) 2010-07-15
WO2010079206A4 true WO2010079206A4 (en) 2010-09-16

Family

ID=42034539

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/050134 WO2010079206A1 (en) 2009-01-08 2010-01-08 Accumulating moisture sensor

Country Status (2)

Country Link
DE (1) DE102009004393A1 (en)
WO (1) WO2010079206A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2014108919A (en) 2011-08-11 2015-09-20 Актелион Фармасьютиклз Лтд HINAZOLINE-2,4-DIONE DERIVATIVES
DE102014015188A1 (en) * 2014-10-15 2015-04-23 Daimler Ag Apparatus and method for monitoring a drying element in a battery
DE102017202631A1 (en) 2017-02-17 2018-08-23 Leoni Kabel Gmbh Monitoring system and cables
CN107884457B (en) * 2017-09-28 2019-07-12 东南大学 A kind of humidity sensor based on metamaterial structure
CN110044976A (en) * 2019-04-17 2019-07-23 淮阴师范学院 For detecting the interdigital capacitive sensor of Q235 corrosion of carbon steel

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284003A (en) * 1964-01-02 1966-11-08 Holley Carburetor Co Dew point detecting and ice preventing device
US3350941A (en) * 1965-05-20 1967-11-07 Johnson Service Co Humidity sensing element
US3961301A (en) * 1973-12-13 1976-06-01 Plessey Incorporated Humidity sensor
DE2848034A1 (en) * 1978-11-06 1980-05-14 Siemens Ag CAPACITIVE HUMIDITY SENSOR
US4793180A (en) * 1981-10-14 1988-12-27 Agm Cargo-Ties, Inc. Delayed action irreversible humidity indicator
JPS5873852A (en) * 1981-10-28 1983-05-04 Hitachi Ltd Dew condensation sensor
FI65674C (en) * 1982-12-21 1984-06-11 Vaisala Oy CAPACITIVE FUEL FARTIGHETSGIVARE OCH FOERFARANDE FOER FRAMSTAELLNINGDAERAV
EP0144358A1 (en) * 1983-05-15 1985-06-19 Intersensor SA Moisture sensor
US4564882A (en) * 1984-08-16 1986-01-14 General Signal Corporation Humidity sensing element
EP0395349B2 (en) * 1989-04-26 1998-06-10 Yamatake-Honeywell Co. Ltd. Moisture sensitive element
US4965698A (en) * 1989-09-27 1990-10-23 Johnson Service Company Capacitance humidity sensor
US5177662A (en) * 1992-02-05 1993-01-05 Johnson Service Company Capacitance humidity sensor
DE19719927A1 (en) * 1997-05-13 1998-11-19 Inst Duennschichttechnologie U Biocide polymer moisture sensor used in e.g. agriculture and horticulture
AU6719000A (en) * 1999-12-08 2001-06-18 Sensirion Ag Capacitive sensor
DE10002707A1 (en) * 2000-01-22 2001-08-02 Bosch Gmbh Robert Gas sensor
WO2002048702A2 (en) * 2000-12-15 2002-06-20 Sensirion Ag Material sensor with protective layer
SE0104206D0 (en) * 2001-12-12 2001-12-12 Alf Andersen Sensor
DE102005003612B3 (en) * 2005-01-26 2006-06-14 Forschungszentrum Jülich GmbH Producing a gastight proton conductor, e.g. useful in fuel cells, comprises coating a substrate with an oxygen ion conductor, applying a carbonate layer, and drying and sintering the product
DE102006033251A1 (en) * 2006-07-18 2008-02-07 Testo Ag Protective device for a humidity sensor in an aggressive atmosphere
DE102007028467A1 (en) * 2007-06-18 2008-12-24 Polyic Gmbh & Co. Kg Measuring device with RFID transponder and sensor
FI120851B (en) * 2007-06-27 2010-03-31 Valtion Teknillinen Sensor for elapsed time and humidity, method for its manufacture and its use

Also Published As

Publication number Publication date
DE102009004393A1 (en) 2010-11-11
WO2010079206A1 (en) 2010-07-15

Similar Documents

Publication Publication Date Title
WO2010079206A4 (en) Accumulating moisture sensor
EP2054612B1 (en) Fuel filter
DE102006019865B3 (en) Cartridge for purifying and/or drying compressed air in processing plant of vehicle, includes sensor for evaluating operating condition and determining necessity for regeneration
DE102014010997B4 (en) Wasserabscheideelement with water detection electrodes
EP2438017B1 (en) Filter device for cleaning of water polluted with solid particles and/or dissolved pollutants
DE602005000135T3 (en) Periodic regeneration at high temperature in a system after the temperature swing adsorption process
DE102008005783A1 (en) Moisture-independent capacitive anti-trap protection
EP3903906A1 (en) Air filter for the indoor air of cabins of vehicles, agricultural, construction and working machines
DE102015205551B4 (en) Multi-layer filter material for a cabin air filter element of an air conditioning system of a vehicle, cabin air filter element for an air conditioning system of a vehicle and air conditioning system for a vehicle
DE102018114351A1 (en) filter media
Suneetha et al. Extraction of fluoride from polluted waters using low-cost active carbon derived from stems of Acalypha indica plant
EP1708799A1 (en) Filter element
WO2007009743A1 (en) Sensor array for the detection of humidity on a window
DE102015212040B4 (en) Process for the regeneration of a VOC adsorber
DE102006008320B4 (en) Filter cartridge for the recovery of low-boiling halogenated hydrocarbons
WO2000018012A1 (en) Dead-man switch
CN106349040A (en) Method for purifying chromatographic grade acetone
KR101799964B1 (en) Water purifying filter caterage with improved antibacterial activity
DE102005057630A1 (en) Air dryer, especially for use with compressed air brakes in automobiles, includes non-woven partially covering annular oil collection space for preventing ingress of oil and dirt
DE102008035965A1 (en) Drying agent container i.e. cylindrical shaped cartridge, for air dryer of compressed air system of motor vehicle, has drying and coalescence layers arranged such that air stream is passed to layers in sequence one after another
WO2017198427A1 (en) Fuel cell filter element and fuel cell filter system having one such fuel cell filter element
EP3827520A1 (en) Moisture-independent capacitive sensor for arbitrary switching processes
EP3112008A1 (en) Method for regenerating an adsorber using a plasma source and adsorbent device
WO2012022334A2 (en) Oil adsorption mat
EP2615382A2 (en) Filter element and fume hood device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10700161

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10700161

Country of ref document: EP

Kind code of ref document: A1