NL8302753A - Werkwijze en inrichting voor het meten van de vervuiling van een capacitieve dauwpuntsensor. - Google Patents
Werkwijze en inrichting voor het meten van de vervuiling van een capacitieve dauwpuntsensor. Download PDFInfo
- Publication number
- NL8302753A NL8302753A NL8302753A NL8302753A NL8302753A NL 8302753 A NL8302753 A NL 8302753A NL 8302753 A NL8302753 A NL 8302753A NL 8302753 A NL8302753 A NL 8302753A NL 8302753 A NL8302753 A NL 8302753A
- Authority
- NL
- Netherlands
- Prior art keywords
- dew point
- sensor
- dew
- impedance
- point sensor
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
- G01N25/66—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point
- G01N25/68—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point by varying the temperature of a condensing surface
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3231995 | 1982-08-27 | ||
DE3231995A DE3231995C2 (de) | 1982-08-27 | 1982-08-27 | Verfahren und Anordnung zum Messen der Verschmutzung eines kapazitiven Taupunktsensors |
Publications (1)
Publication Number | Publication Date |
---|---|
NL8302753A true NL8302753A (nl) | 1984-03-16 |
Family
ID=6171900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8302753A NL8302753A (nl) | 1982-08-27 | 1983-08-04 | Werkwijze en inrichting voor het meten van de vervuiling van een capacitieve dauwpuntsensor. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4626774A (sv) |
JP (1) | JPS5985949A (sv) |
CH (1) | CH661986A5 (sv) |
DE (1) | DE3231995C2 (sv) |
FR (1) | FR2532427B1 (sv) |
GB (1) | GB2127975B (sv) |
IT (1) | IT1159590B (sv) |
NL (1) | NL8302753A (sv) |
SE (1) | SE460740B (sv) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3446277A1 (de) * | 1984-12-19 | 1986-06-19 | Forschungsinstitut Prof. Dr.-Ing.habil, Dr.phil.nat. Karl Otto Lehmann, Nachf. GmbH & Cie, 7570 Baden-Baden | Messwertaufnehmer zur messung des taupunkts |
JPH0646186B2 (ja) * | 1985-12-12 | 1994-06-15 | 株式会社日本自動車部品総合研究所 | 水滴検出装置 |
GB8602742D0 (en) * | 1986-02-04 | 1986-03-12 | Mestra Ag | Capacitive sensor circuit |
DE3633015A1 (de) * | 1986-09-29 | 1988-04-07 | Draegerwerk Ag | Verfahren und anordnung zur messung des taupunktes |
CH672957A5 (sv) * | 1987-03-16 | 1990-01-15 | Novasina Ag | |
DE3708697A1 (de) * | 1987-03-18 | 1988-09-29 | Draegerwerk Ag | Verfahren und anordnung zur messung des taupunktes |
DE3720189C1 (de) * | 1987-06-16 | 1988-12-29 | Endress Hauser Gmbh Co | Taupunkt-Sensor |
DE3740719A1 (de) * | 1987-12-01 | 1989-06-15 | Endress Hauser Gmbh Co | Verfahren und anordnung zur messung des wasserdampf-taupunkts in gasen |
FI82554C (sv) * | 1988-11-02 | 1991-03-11 | Vaisala Oy | Kalibreringsförfarande för mätning av den relativa halten av gas eller ånga |
US5121068A (en) * | 1989-12-26 | 1992-06-09 | Emhart Industries, Inc. | Sensor for sensing the wall thickness of an object |
US5072190A (en) * | 1990-08-14 | 1991-12-10 | The Foxboro Company | Pressure sensing device having fill fluid contamination detector |
DE4116322C2 (de) * | 1991-05-16 | 1998-08-06 | Ct Fuer Intelligente Sensorik | Vorrichtung zur Messung der Taupunkttemperatur und der Betauung |
IT1251318B (it) * | 1991-09-13 | 1995-05-08 | Ente Naz Energia Elettrica | Apparecchiatura per controllare lo stato di contaminazione di isolatori elettrici |
US5365784A (en) * | 1992-04-30 | 1994-11-22 | The United States Of America As Represented By The Secretary Of The Air Force | Humidity sensing apparatus and method |
DE4305934B4 (de) * | 1993-02-26 | 2004-09-30 | CiS Institut für Mikrosensorik gGmbH | Anordnung von Sensoren zur Messung der Luftfeuchte |
US5364185A (en) * | 1993-04-16 | 1994-11-15 | California Institute Of Technology | High performance miniature hygrometer and method thereof |
US6114862A (en) * | 1996-02-14 | 2000-09-05 | Stmicroelectronics, Inc. | Capacitive distance sensor |
US6320394B1 (en) | 1996-02-14 | 2001-11-20 | Stmicroelectronics S.R.L. | Capacitive distance sensor |
EP0790479B1 (en) | 1996-02-14 | 2002-01-16 | STMicroelectronics S.r.l. | Capacitive distance sensor, particularly for acquiring fingerprints |
US5809826A (en) * | 1996-07-29 | 1998-09-22 | Baker, Jr.; Hugh M. | Inferential condensation sensor |
US5764065A (en) * | 1996-09-20 | 1998-06-09 | Richards; Clyde N. | Remote contamination sensing device for determining contamination on insulation of power lines and substations |
DE19708053B4 (de) * | 1997-02-28 | 2006-06-08 | Ust Umweltsensortechnik Gmbh | Verfahren und Sensoranordnung zur Dedektion von Kondensationen an Oberflächen |
US6566893B2 (en) | 1997-02-28 | 2003-05-20 | Ust Umweltsensortechnik Gmbh | Method and arrangement for monitoring surfaces for the presence of dew |
US6483931B2 (en) | 1997-09-11 | 2002-11-19 | Stmicroelectronics, Inc. | Electrostatic discharge protection of a capacitve type fingerprint sensing array |
US6191593B1 (en) * | 1997-12-17 | 2001-02-20 | Stmicroelectronics, Inc. | Method for the non-invasive sensing of physical matter on the detection surface of a capacitive sensor |
US6091082A (en) | 1998-02-17 | 2000-07-18 | Stmicroelectronics, Inc. | Electrostatic discharge protection for integrated circuit sensor passivation |
US6926439B2 (en) | 1998-10-30 | 2005-08-09 | Optiguide Ltd. | Dew point hygrometers and dew sensors |
IL126826A0 (en) | 1998-10-30 | 1999-08-17 | Optiguide Ltd | Optical hygrometers |
US7239227B1 (en) | 1999-12-30 | 2007-07-03 | Upek, Inc. | Command interface using fingerprint sensor input system |
US6512381B2 (en) | 1999-12-30 | 2003-01-28 | Stmicroelectronics, Inc. | Enhanced fingerprint detection |
US6906530B2 (en) * | 2002-05-30 | 2005-06-14 | D.J. Geisel Technology, Inc. | Apparatus and method to detect moisture |
NL1021400C2 (nl) * | 2002-09-05 | 2004-03-08 | Tno | Werkwijze en inrichting voor het bepalen van een faseovergang van een stof. |
AU2003902836A0 (en) * | 2003-06-06 | 2003-06-26 | M.B.T.L. Limited | Environmental sensor |
DE102004005353B4 (de) | 2004-02-03 | 2016-08-11 | CiS Forschungsinstitut für Mikrosensorik GmbH | Verfahren zur Bestimmung der Parameter von Gasen |
JP4229885B2 (ja) * | 2004-08-18 | 2009-02-25 | 株式会社デンソー | 容量式物理量検出装置 |
GB2419415A (en) * | 2004-09-20 | 2006-04-26 | Bioquell Uk Ltd | Sterilisation sensor |
US8115497B2 (en) * | 2007-11-13 | 2012-02-14 | Authentec, Inc. | Pixel sensing circuit with common mode cancellation |
DE102007047888A1 (de) * | 2007-11-28 | 2009-08-13 | Sitronic Gesellschaft für elektrotechnische Ausrüstung mbH. & Co. KG | Sensoranordnung |
US9063067B1 (en) | 2010-11-17 | 2015-06-23 | Alvin P. Schmitt | Moisture sensing devices |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2435895A (en) * | 1943-06-24 | 1948-02-10 | Oran T Mciivaine | Dew point detector |
DE1813333A1 (de) * | 1968-12-07 | 1970-06-11 | Leybold Heraeus Gmbh & Co Kg | Verfahren zur Messung der Schichtdicke eines Metallbelages auf einer Isolierstoffbahn |
US3664192A (en) * | 1969-09-08 | 1972-05-23 | Univ Utah State | Dew point hygrometers |
US3778707A (en) * | 1972-12-14 | 1973-12-11 | Agridustrial Electronics | Means for measuring loss tangent of material for determining moisture content |
CA1020631A (en) * | 1974-03-04 | 1977-11-08 | Edward I. Parker | Control and gauging method and apparatus using locked oscillators |
US4216669A (en) * | 1978-10-06 | 1980-08-12 | General Eastern Instruments Corporation | Contaminant error reduction system for dew point hygrometers |
US4272986A (en) * | 1979-04-16 | 1981-06-16 | Harris Corporation | Method and means for measuring moisture content of hermetic semiconductor devices |
JPS5731102A (en) * | 1980-08-01 | 1982-02-19 | Tokyo Shibaura Electric Co | Moisture sensitive element |
JPS57111566A (en) * | 1980-12-29 | 1982-07-12 | Fujitsu Ltd | Detecting circuit for toner density |
NL8101310A (nl) * | 1981-03-18 | 1982-10-18 | Skf Ind Trading & Dev | Inrichting voor het meten van de variatie van een capacitieve impedantie, waarvan het dielektricum wordt gevormd door een smeermiddel. |
-
1982
- 1982-08-27 DE DE3231995A patent/DE3231995C2/de not_active Expired
-
1983
- 1983-08-04 NL NL8302753A patent/NL8302753A/nl not_active Application Discontinuation
- 1983-08-16 US US06/523,464 patent/US4626774A/en not_active Expired - Fee Related
- 1983-08-25 FR FR8313703A patent/FR2532427B1/fr not_active Expired
- 1983-08-25 SE SE8304613A patent/SE460740B/sv not_active IP Right Cessation
- 1983-08-25 IT IT67893/83A patent/IT1159590B/it active
- 1983-08-26 CH CH4659/83A patent/CH661986A5/de not_active IP Right Cessation
- 1983-08-26 JP JP58155126A patent/JPS5985949A/ja active Granted
- 1983-08-30 GB GB08323158A patent/GB2127975B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT8367893A0 (it) | 1983-08-25 |
DE3231995A1 (de) | 1984-03-01 |
GB2127975A (en) | 1984-04-18 |
SE8304613L (sv) | 1984-04-18 |
CH661986A5 (de) | 1987-08-31 |
JPS5985949A (ja) | 1984-05-18 |
FR2532427A1 (fr) | 1984-03-02 |
US4626774A (en) | 1986-12-02 |
IT1159590B (it) | 1987-03-04 |
SE8304613D0 (sv) | 1983-08-25 |
GB8323158D0 (en) | 1983-09-28 |
JPH0260141B2 (sv) | 1990-12-14 |
DE3231995C2 (de) | 1985-06-27 |
SE460740B (sv) | 1989-11-13 |
GB2127975B (en) | 1985-11-13 |
FR2532427B1 (fr) | 1986-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A1A | A request for search or an international-type search has been filed | ||
A85 | Still pending on 85-01-01 | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BV | The patent application has lapsed |