DE69023388D1 - Feuchtigkeitsmessgerät. - Google Patents

Feuchtigkeitsmessgerät.

Info

Publication number
DE69023388D1
DE69023388D1 DE69023388T DE69023388T DE69023388D1 DE 69023388 D1 DE69023388 D1 DE 69023388D1 DE 69023388 T DE69023388 T DE 69023388T DE 69023388 T DE69023388 T DE 69023388T DE 69023388 D1 DE69023388 D1 DE 69023388D1
Authority
DE
Germany
Prior art keywords
moisture meter
meter
moisture
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69023388T
Other languages
English (en)
Other versions
DE69023388T2 (de
Inventor
Shiro Nakagawa
Taisuke Domon
Takehiro Imai
Atsuko Tsuchida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
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
Priority claimed from JP5478289U external-priority patent/JPH02146360U/ja
Priority claimed from JP12092689A external-priority patent/JPH0776761B2/ja
Priority claimed from JP12092589A external-priority patent/JPH02298848A/ja
Priority claimed from JP26370389A external-priority patent/JPH0663997B2/ja
Priority claimed from JP26465489A external-priority patent/JPH0663998B2/ja
Application filed by TDK Corp filed Critical TDK Corp
Publication of DE69023388D1 publication Critical patent/DE69023388D1/de
Application granted granted Critical
Publication of DE69023388T2 publication Critical patent/DE69023388T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
    • 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
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/045—Circuits
    • 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
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits

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)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Control Of Non-Electrical Variables (AREA)
DE69023388T 1989-05-12 1990-05-03 Feuchtigkeitsmessgerät. Expired - Fee Related DE69023388T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP5478289U JPH02146360U (de) 1989-05-12 1989-05-12
JP12092689A JPH0776761B2 (ja) 1989-05-15 1989-05-15 ローパワー湿度センサ
JP12092589A JPH02298848A (ja) 1989-05-15 1989-05-15 広範囲湿度センサ
JP26370389A JPH0663997B2 (ja) 1989-10-09 1989-10-09 湿度センサ
JP26465489A JPH0663998B2 (ja) 1989-10-11 1989-10-11 湿度センサ

Publications (2)

Publication Number Publication Date
DE69023388D1 true DE69023388D1 (de) 1995-12-14
DE69023388T2 DE69023388T2 (de) 1996-04-11

Family

ID=27523184

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69023388T Expired - Fee Related DE69023388T2 (de) 1989-05-12 1990-05-03 Feuchtigkeitsmessgerät.

Country Status (3)

Country Link
US (1) US5065625A (de)
EP (1) EP0397584B1 (de)
DE (1) DE69023388T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2536226Y2 (ja) * 1991-12-13 1997-05-21 ティーディーケイ株式会社 湿度センサ
JPH0592706U (ja) * 1992-05-19 1993-12-17 ティーディーケイ株式会社 湿度検出装置
US20030219567A1 (en) * 1992-06-29 2003-11-27 Weder Donald E. Decorative cover for a flower pot or floral grouping having an appearance simulating the appearance of cloth and having an opening formed through a portion thereof
JP3067010B2 (ja) * 1994-02-09 2000-07-17 ティーディーケイ株式会社 絶対湿度センサ
JP2613358B2 (ja) * 1994-02-17 1997-05-28 ティーディーケイ株式会社 湿度センサ
JP2795807B2 (ja) * 1994-06-16 1998-09-10 ティーディーケイ株式会社 湿度センサ
US5677476A (en) * 1996-02-06 1997-10-14 Endress + Hauser Conducta Gesellschaft Fuer Mess- Und Regeltechnik Mbh & Co. Sensor and transmitter with multiple outputs
US7597001B2 (en) 2006-02-16 2009-10-06 Canon Kabushiki Kaisha Humidity measuring apparatus and image forming apparatus
DE602006008844D1 (de) * 2006-07-19 2009-10-15 Sensirion Holding Ag Feuchtigkeitsfühler zur Ermittlung von Beschlag auf einem Fenster
WO2013097211A1 (zh) * 2011-12-31 2013-07-04 大洋电机新动力科技有限公司 一种带自动补偿的窄脉冲过滤电路及其应用的电机控制器
JP5991246B2 (ja) * 2013-03-25 2016-09-14 ブラザー工業株式会社 センサ装置、同センサ装置を備えた画像形成装置、及び湿度検出方法
CN103308565B (zh) * 2013-07-03 2015-05-13 苏州市光华电测技术研究所 一种棉包水分测定方法
EA033551B1 (ru) * 2017-07-20 2019-10-31 Llc Miks Miks Llc Способ измерения электропроводности флюида и влагосодержания флюида в скважине и автономный скважинный резистивиметр-влагомер для его осуществления
ES2930404T3 (es) * 2017-12-21 2022-12-12 Evco S P A Sistema y dispositivo de medición de humedad

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54123098A (en) * 1978-03-16 1979-09-25 Matsushita Electric Ind Co Ltd Moisture detector
EP0013022B1 (de) * 1978-12-26 1984-03-28 Matsushita Electric Industrial Co., Ltd. Ein Porzellan-Widerstandselement verwendender Feuchtigkeitssensor
JPS5610244A (en) * 1979-07-04 1981-02-02 Matsushita Electric Ind Co Ltd Temperature sensor controlling device
JPS5943346A (ja) * 1982-09-03 1984-03-10 Citizen Watch Co Ltd 湿度検出装置
DE3238507A1 (de) * 1982-10-18 1984-04-19 Honeywell Gmbh, 6050 Offenbach Mess- und linearisierungsschaltung fuer einen kapazitiven messfuehler
JPS59202051A (ja) * 1983-04-22 1984-11-15 リセンチア・タラルマニヨカト・エレテケスイト・フアララト 電子式相対湿度計測・伝送装置
JPS6076657A (ja) * 1983-10-03 1985-05-01 Matsushita Electric Ind Co Ltd 湿度検出装置
JPS61104246A (ja) * 1984-10-26 1986-05-22 Hitachi Ltd 湿度検出回路
JPS61217751A (ja) * 1985-03-25 1986-09-27 Hitachi Ltd 湿度検出装置
US4646066A (en) * 1985-06-27 1987-02-24 Allied Corporation Environmental indicator device and method
JPS6217649A (ja) * 1985-07-15 1987-01-26 Sharp Corp 湿度検出回路
US4649736A (en) * 1985-11-04 1987-03-17 Itt Corporation Moisture monitoring system
US4816748A (en) * 1986-08-28 1989-03-28 Nippon Mining Co., Ltd. Electronic thermohygrometer with square-wave pulse signal generator
JPS63108257A (ja) * 1986-10-27 1988-05-13 Seiko Epson Corp 湿度検出器
JPS63223555A (ja) * 1987-03-12 1988-09-19 Sakabe Seigyo Giken:Kk 静電容量形検出器

Also Published As

Publication number Publication date
EP0397584A2 (de) 1990-11-14
US5065625A (en) 1991-11-19
DE69023388T2 (de) 1996-04-11
EP0397584A3 (de) 1991-01-09
EP0397584B1 (de) 1995-11-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE KNOBLAUCH UND KNOBLAUCH, 60322 FRANK

8339 Ceased/non-payment of the annual fee