DE69417418D1 - Vorrichtung zur messung des wassergehaltes - Google Patents

Vorrichtung zur messung des wassergehaltes

Info

Publication number
DE69417418D1
DE69417418D1 DE69417418T DE69417418T DE69417418D1 DE 69417418 D1 DE69417418 D1 DE 69417418D1 DE 69417418 T DE69417418 T DE 69417418T DE 69417418 T DE69417418 T DE 69417418T DE 69417418 D1 DE69417418 D1 DE 69417418D1
Authority
DE
Germany
Prior art keywords
measuring
water content
content
water
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
DE69417418T
Other languages
English (en)
Other versions
DE69417418T2 (de
Inventor
Charles Martin
Neil Graham
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.)
University of Strathclyde
Original Assignee
University of Strathclyde
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 University of Strathclyde filed Critical University of Strathclyde
Publication of DE69417418D1 publication Critical patent/DE69417418D1/de
Application granted granted Critical
Publication of DE69417418T2 publication Critical patent/DE69417418T2/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
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/10—Measuring moisture content, e.g. by measuring change in length of hygroscopic filament; Hygrometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24—Earth materials

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Cultivation Of Plants (AREA)
DE69417418T 1993-06-24 1994-06-24 Vorrichtung zur messung des wassergehaltes Expired - Fee Related DE69417418T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939313017A GB9313017D0 (en) 1993-06-24 1993-06-24 Measurement of water content
PCT/GB1994/001369 WO1995000830A1 (en) 1993-06-24 1994-06-24 Measurement of water content

Publications (2)

Publication Number Publication Date
DE69417418D1 true DE69417418D1 (de) 1999-04-29
DE69417418T2 DE69417418T2 (de) 1999-10-21

Family

ID=10737695

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69417418T Expired - Fee Related DE69417418T2 (de) 1993-06-24 1994-06-24 Vorrichtung zur messung des wassergehaltes

Country Status (7)

Country Link
US (1) US5694806A (de)
EP (1) EP0705425B1 (de)
JP (1) JPH09501765A (de)
AU (1) AU7002894A (de)
DE (1) DE69417418T2 (de)
GB (1) GB9313017D0 (de)
WO (1) WO1995000830A1 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29801385U1 (de) * 1998-01-30 1998-03-26 Boxser, Daniel, London Stecketikett für Pflanzen
US6582658B1 (en) 1999-06-22 2003-06-24 Cornerstone Research Group, Inc. Fiber optic moisture sensor
US7069226B1 (en) 1999-07-07 2006-06-27 Synetic, Incorporated Prescription data processing system for determining new therapy starts
US6766762B2 (en) * 2001-10-05 2004-07-27 Purdue Research Foundation Indicator device for soil
FR2840907B1 (fr) * 2002-06-14 2005-11-25 Polymerexpert Sa Polymere thermo-sensible ameliore susceptible de former des gels thermoreversibles a haut indice de viscosification
DE102004002272A1 (de) * 2004-01-16 2005-08-11 Florasys Ag Mechanischer Feuchtigkeitsmesser zur Bodenfeuchtigkeitsüberwachung von Pflanzen
WO2005106460A1 (en) * 2004-04-28 2005-11-10 Phase Dynamics, Inc. Volume-differential assay using hydrophic gel
US7354768B1 (en) * 2004-04-28 2008-04-08 Phase Dynamics, Inc. Volume-differential assay using hydrophilic gel
US7407625B1 (en) * 2004-04-28 2008-08-05 Phase Dynamics, Inc. Volume-differential water assay system using hydrophilic gel
ATE441031T1 (de) * 2004-06-04 2009-09-15 Grundfos As Eintauchbarer elektromotor mit flüssigkeitsvorlage und anzeigeelement eines fremdstoffes darin.
US8296162B1 (en) 2005-02-01 2012-10-23 Webmd Llc. Systems, devices, and methods for providing healthcare information
US8166906B2 (en) * 2005-04-29 2012-05-01 Ambrozy Rel S Stimulus indicating device employing polymer gels
US7940605B2 (en) * 2005-04-29 2011-05-10 Prasidiux, Llc Stimulus indicating device employing polymer gels
US20120032117A1 (en) 2005-04-29 2012-02-09 Ambrozy Rel S Stimulus indicating device employing polymer gels
US9182292B2 (en) 2005-04-29 2015-11-10 Prasidiux, Llc Stimulus indicating device employing polymer gels
US8077554B2 (en) 2005-04-29 2011-12-13 Ambrozy Rel S Stimulus indicating device employing polymer gels
EP1877761A4 (de) * 2005-04-29 2010-03-24 Rel S Ambrozy Reizanzeige unter einsatz von polymergelen
US8380530B2 (en) 2007-02-02 2013-02-19 Webmd Llc. Personalized health records with associative relationships
US20080200377A1 (en) * 2007-02-16 2008-08-21 Trollsas Mikael O Polymer particles
US20110107825A1 (en) * 2009-11-12 2011-05-12 Jenkinson Byron J Anaerobic soil indicator device
DE102010001470A1 (de) 2010-02-02 2011-08-04 Henkel AG & Co. KGaA, 40589 Polyetherblockcopolymere und daraus erhältliche Zusammensetzungen
KR101675833B1 (ko) * 2015-04-08 2016-11-14 세종대학교산학협력단 광결정 습도 센서 및 이의 제조 방법
WO2018067625A1 (en) * 2016-10-04 2018-04-12 Lafian Jesse Tensiometer apparatus and method
CN106908581B (zh) * 2017-01-25 2019-06-14 浙江工业大学 一种带传感器的简易便携式土壤含水率测定仪

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2300000A (en) * 1942-10-27 Instrument for indicating atmos
US1523322A (en) * 1923-07-16 1925-01-13 Caroline S Walton Hygroscopic implement
US1690672A (en) * 1928-02-04 1928-11-06 Government Moisture-indicating instrument for wood
GB453662A (en) * 1935-05-25 1936-09-16 Charles Laurence Burdick Improvements in apparatus for and method of determining the moisture content of substances
US2573685A (en) * 1947-04-15 1951-11-06 Welford C Blinn Humidostat
US4069716A (en) * 1976-02-05 1978-01-24 Lmc Data, Inc. Apparatus and method for use in determining conditions related to a plant
US4214701A (en) * 1977-09-02 1980-07-29 Gerhard Beckmann Irrigation valve device
US4130012A (en) * 1977-11-25 1978-12-19 Design Loft Creations, Inc. Soil moisture indicator
AU537741B2 (en) * 1979-03-21 1984-07-12 British Technology Group Limited Controlled release compositions
SU966571A1 (ru) * 1981-02-02 1982-10-15 Ленинградский Филиал Государственного Проектно-Изыскательского И Научно-Исследовательского Института Гражданской Авиации "Аэропроект" Датчик влажности грунта
FR2522411B1 (fr) * 1982-03-01 1985-06-21 Lebeau Bernard Etuis pour thermometre medical ou article semblable
JPS6070339A (ja) * 1983-09-27 1985-04-22 Nitto Electric Ind Co Ltd 水濃度計
US4655076A (en) * 1984-01-23 1987-04-07 Raychem Corporation Moisture measuring apparatus
US4511477A (en) * 1985-04-15 1985-04-16 The Dow Chemical Company Process of using water-absorbent agents for low pH applications
JPH0676905B2 (ja) * 1986-06-09 1994-09-28 大日精化工業株式会社 水位表示体
JPS6330743A (ja) * 1986-07-24 1988-02-09 Oyo Chishitsu Kk 植物の潅水適時検知方法
JPS6330744A (ja) * 1986-07-24 1988-02-09 Oyo Chishitsu Kk 土壌水分計
US5273066A (en) * 1988-06-10 1993-12-28 Graham Neil B Control valves and method of plant growing using flow control
DE68924151T2 (de) * 1988-06-29 1996-03-21 Measurement Tech Int Durchflussmesser für fluid.
JPH0285742A (ja) * 1988-09-21 1990-03-27 Iseki & Co Ltd 液体濃度検出装置
GB9306887D0 (en) * 1993-04-01 1993-05-26 Graham Neil B Random block copolymers

Also Published As

Publication number Publication date
EP0705425B1 (de) 1999-03-24
JPH09501765A (ja) 1997-02-18
US5694806A (en) 1997-12-09
WO1995000830A1 (en) 1995-01-05
AU7002894A (en) 1995-01-17
EP0705425A1 (de) 1996-04-10
DE69417418T2 (de) 1999-10-21
GB9313017D0 (en) 1993-08-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee