MY154211A - A humidity sensor device - Google Patents

A humidity sensor device

Info

Publication number
MY154211A
MY154211A MYPI2011700063A MYPI2011700063A MY154211A MY 154211 A MY154211 A MY 154211A MY PI2011700063 A MYPI2011700063 A MY PI2011700063A MY PI2011700063 A MYPI2011700063 A MY PI2011700063A MY 154211 A MY154211 A MY 154211A
Authority
MY
Malaysia
Prior art keywords
capacitor
sensor device
humidity sensor
sensing
contact pads
Prior art date
Application number
MYPI2011700063A
Inventor
Suraya Sulaiman
Nabipoor Dr Mohsen
Chia Chieu Yin Chee Chieu Yin
Original Assignee
Mimos Berhad
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 Mimos Berhad filed Critical Mimos Berhad
Priority to MYPI2011700063A priority Critical patent/MY154211A/en
Priority to PCT/MY2012/000083 priority patent/WO2012148254A1/en
Publication of MY154211A publication Critical patent/MY154211A/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 present invention relates to a humidity sensor device. The humidity sensor device (100) comprises of at least two contact pads (110), a sensing capacitor (120), a reference capacitor (130), and a control circuit (140). The sensing capacitor (120) is an interdigital capacitor and it is divided into at least two sub-capacitors (120a, 120b, 120c, 120n). The control unit (140) determines the number of sub capacitors (120a, 120b, 120c, 120n) to be connected to the contact pads (110) by measuring the capacitance value of the reference capacitor (130) and controlling the switches (124) of the sensing capacitor (120) based on the variation in sensing material thickness of the reference capacitor (130). The most illustrative drawing:
MYPI2011700063A 2011-04-26 2011-04-26 A humidity sensor device MY154211A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MYPI2011700063A MY154211A (en) 2011-04-26 2011-04-26 A humidity sensor device
PCT/MY2012/000083 WO2012148254A1 (en) 2011-04-26 2012-04-17 A humidity sensor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI2011700063A MY154211A (en) 2011-04-26 2011-04-26 A humidity sensor device

Publications (1)

Publication Number Publication Date
MY154211A true MY154211A (en) 2015-05-15

Family

ID=47072569

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2011700063A MY154211A (en) 2011-04-26 2011-04-26 A humidity sensor device

Country Status (2)

Country Link
MY (1) MY154211A (en)
WO (1) WO2012148254A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103792268B (en) * 2014-02-19 2015-12-09 苏州能斯达电子科技有限公司 A Differential Capacitive Hydrogen Sensor
EP2988122B1 (en) * 2014-08-20 2019-04-24 ams international AG Capacitive sensor
EP3208610B1 (en) * 2016-02-18 2021-05-12 ams AG Sensor arrangement and method for generating measurement signals
CN106415601B (en) * 2016-08-09 2022-07-26 柳州梓博科技有限公司 Capacitive sensor, capacitive sensing device, and electronic apparatus
CN107831196A (en) * 2017-09-28 2018-03-23 马清 One kind alternating interdigital humidity sensor
EP3499225B1 (en) 2017-12-18 2021-01-27 Stichting IMEC Nederland Conductivity sensor with adjustable cell constant
CN115825171A (en) * 2021-09-17 2023-03-21 无锡华润上华科技有限公司 Double-capacitance humidity sensor
CN115575464A (en) * 2022-09-29 2023-01-06 广州奥松电子股份有限公司 Self-Calibrating Humidity Sensor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6580600B2 (en) * 2001-02-20 2003-06-17 Nippon Soken, Inc. Capacitance type humidity sensor and manufacturing method of the same
JP3855950B2 (en) * 2003-03-19 2006-12-13 株式会社デンソー Capacitive humidity sensor
EP2278310B1 (en) * 2004-06-18 2016-11-16 Sensirion Holding AG Capacitive sensor
JP4455286B2 (en) * 2004-11-09 2010-04-21 株式会社日本自動車部品総合研究所 Capacitive humidity sensor
JP4566784B2 (en) * 2005-02-24 2010-10-20 株式会社デンソー Humidity sensor device
JP4386295B2 (en) * 2007-04-20 2009-12-16 株式会社日本自動車部品総合研究所 Humidity sensor

Also Published As

Publication number Publication date
WO2012148254A1 (en) 2012-11-01

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