WO2009066992A3 - Capacitive sensor - Google Patents
Capacitive sensor Download PDFInfo
- Publication number
- WO2009066992A3 WO2009066992A3 PCT/MY2008/000158 MY2008000158W WO2009066992A3 WO 2009066992 A3 WO2009066992 A3 WO 2009066992A3 MY 2008000158 W MY2008000158 W MY 2008000158W WO 2009066992 A3 WO2009066992 A3 WO 2009066992A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- capacitive sensor
- moisture content
- insulating layers
- sensor comprises
- measuring moisture
- Prior art date
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
Abstract
A capacitive sensor comprises of electrodes interdigitated fingers in multiple insulating layers for measuring moisture content.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MYPI20072088 | 2007-11-23 | ||
MYPI20072088A MY164505A (en) | 2007-11-23 | 2007-11-23 | Capacitive sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009066992A2 WO2009066992A2 (en) | 2009-05-28 |
WO2009066992A3 true WO2009066992A3 (en) | 2009-08-20 |
Family
ID=40668026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/MY2008/000158 WO2009066992A2 (en) | 2007-11-23 | 2008-11-24 | Capacitive sensor |
Country Status (2)
Country | Link |
---|---|
MY (1) | MY164505A (en) |
WO (1) | WO2009066992A2 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2336758B1 (en) | 2009-12-16 | 2012-08-29 | Nxp B.V. | Capacitive sensor |
WO2011159480A1 (en) | 2010-06-15 | 2011-12-22 | 3M Innovative Properties Company | Variable capacitance sensors and methods of making the same |
MY173650A (en) * | 2010-11-15 | 2020-02-13 | Mimos Berhad | Humidity sensor and a method for fabricating the same |
CN102507669A (en) * | 2011-11-18 | 2012-06-20 | 中国科学院上海微系统与信息技术研究所 | Structure improvement and making method of humidity sensor on basis of polyimide and filler corrosion |
CN103207215A (en) * | 2012-01-16 | 2013-07-17 | 中国科学院上海微系统与信息技术研究所 | Improved humidity sensor based on polyimide |
WO2014185771A2 (en) * | 2013-05-17 | 2014-11-20 | Mimos Berhad | A capacitive humidity sensor |
EP2988122B1 (en) | 2014-08-20 | 2019-04-24 | ams international AG | Capacitive sensor |
WO2016056887A1 (en) * | 2014-10-09 | 2016-04-14 | Mimos Berhad | Humidity sensor with nanoporous polyimide membranes and a method of fabrication thereof |
EP3037810B1 (en) | 2014-12-23 | 2017-10-25 | EM Microelectronic-Marin SA | Improved moisture sensor |
EP3208610B1 (en) | 2016-02-18 | 2021-05-12 | ams AG | Sensor arrangement and method for generating measurement signals |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4017820A (en) * | 1975-07-25 | 1977-04-12 | Illinois Tool Works Inc. | Humidity sensor with multiple electrode layers separated by a porous monolithic ceramic dielectric structure |
US20020109959A1 (en) * | 2001-02-15 | 2002-08-15 | Inao Toyoda | Capacitive moisture sensor and fabrication method for capacitive moisture sensor |
US20050188764A1 (en) * | 2004-02-27 | 2005-09-01 | Denso Corporation | Capacitive type humidity sensor |
US20060096370A1 (en) * | 2004-11-09 | 2006-05-11 | Denso Corporation | Capacitive humidity sensor |
US7247271B2 (en) * | 2003-03-14 | 2007-07-24 | Delphi Technologies, Inc. | Compact ceramic sensor for fuel volatility and oxygenate concentration |
-
2007
- 2007-11-23 MY MYPI20072088A patent/MY164505A/en unknown
-
2008
- 2008-11-24 WO PCT/MY2008/000158 patent/WO2009066992A2/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4017820A (en) * | 1975-07-25 | 1977-04-12 | Illinois Tool Works Inc. | Humidity sensor with multiple electrode layers separated by a porous monolithic ceramic dielectric structure |
US20020109959A1 (en) * | 2001-02-15 | 2002-08-15 | Inao Toyoda | Capacitive moisture sensor and fabrication method for capacitive moisture sensor |
US7247271B2 (en) * | 2003-03-14 | 2007-07-24 | Delphi Technologies, Inc. | Compact ceramic sensor for fuel volatility and oxygenate concentration |
US20050188764A1 (en) * | 2004-02-27 | 2005-09-01 | Denso Corporation | Capacitive type humidity sensor |
US20060096370A1 (en) * | 2004-11-09 | 2006-05-11 | Denso Corporation | Capacitive humidity sensor |
Also Published As
Publication number | Publication date |
---|---|
MY164505A (en) | 2017-12-29 |
WO2009066992A2 (en) | 2009-05-28 |
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