BE838468A - Indicateur d'humidite pour plantes d'appartement - Google Patents

Indicateur d'humidite pour plantes d'appartement

Info

Publication number
BE838468A
BE838468A BE164250A BE164250A BE838468A BE 838468 A BE838468 A BE 838468A BE 164250 A BE164250 A BE 164250A BE 164250 A BE164250 A BE 164250A BE 838468 A BE838468 A BE 838468A
Authority
BE
Belgium
Prior art keywords
humidity indicator
plants
flat
flat plants
humidity
Prior art date
Application number
BE164250A
Other languages
English (en)
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 filed Critical
Publication of BE838468A publication Critical patent/BE838468A/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • G01N31/222—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating moisture content
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/29—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection
BE164250A 1975-02-12 1976-02-11 Indicateur d'humidite pour plantes d'appartement BE838468A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/549,314 US3951098A (en) 1975-02-12 1975-02-12 House plant water content indicator

Publications (1)

Publication Number Publication Date
BE838468A true BE838468A (fr) 1976-05-28

Family

ID=24192486

Family Applications (1)

Application Number Title Priority Date Filing Date
BE164250A BE838468A (fr) 1975-02-12 1976-02-11 Indicateur d'humidite pour plantes d'appartement

Country Status (3)

Country Link
US (1) US3951098A (fr)
JP (1) JPS5197494A (fr)
BE (1) BE838468A (fr)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063452A (en) * 1975-06-30 1977-12-20 Minnesota Mining And Manufacturing Company Method and device for monitoring vapor concentration at a phase interface
CA1066141A (fr) * 1975-06-30 1979-11-13 Minnesota Mining And Manufacturing Company Methode et dispositif de controle de la concentration de vapeurs a interface de phase
JPS5292782U (fr) * 1976-01-06 1977-07-11
JPS5336381U (fr) * 1976-09-03 1978-03-30
CA1091987A (fr) * 1976-11-24 1980-12-23 Bernard Slepak Hygrometre
US4201080A (en) * 1976-11-24 1980-05-06 Bernard Slepak Moisture indicator
US4130012A (en) * 1977-11-25 1978-12-19 Design Loft Creations, Inc. Soil moisture indicator
US4184445A (en) * 1978-01-16 1980-01-22 Compac Industries, Inc. Soil moisture signaling device
US4382380A (en) * 1979-09-26 1983-05-10 Charles Martin Plant watering indicator
JPS5792161U (fr) * 1980-11-26 1982-06-07
US4643122A (en) * 1984-07-23 1987-02-17 Wright State University Diffusion controlled security tags
GB8522294D0 (en) * 1985-09-09 1985-10-16 Crowther Display Ltd Watering indicators for plants
JPS6358753U (fr) * 1986-10-03 1988-04-19
US4931051A (en) * 1987-02-06 1990-06-05 Edge Enterprises, Inc. Wetness indicator
JPH0435108A (ja) * 1990-05-25 1992-02-05 Toyo Commun Equip Co Ltd 超薄板多重モード水晶フィルタ素子
DK167257B1 (da) * 1990-07-31 1993-09-27 Dansk Teknologisk Inst Fugtighedsindikator med indkapslet foeler til bestemmelse af fugtighedsgraden i bygningsdele
DE29801385U1 (de) * 1998-01-30 1998-03-26 Schloesser Ulrich Stecketikett für Pflanzen
US6269764B1 (en) 1999-05-14 2001-08-07 Church & Dwight Co., Inc. Timing device
WO2002039196A1 (fr) * 2000-11-08 2002-05-16 Church & Dwight Co., Inc. Dispositif d'evaluation du temps
US6973894B1 (en) 2000-11-08 2005-12-13 Church & Dwight Co., Inc. Timing device
EP1558866A4 (fr) * 2002-06-24 2010-03-03 Arichell Tech Inc Systemes de distribution d'eau automatises a commande asservie
US20040013048A1 (en) * 2002-07-16 2004-01-22 Adamy Steven T. Timing device
US7434535B2 (en) * 2003-12-31 2008-10-14 Church & Dwight Co., Inc. Timing device
US7271729B2 (en) * 2004-07-15 2007-09-18 Rice Frank M Novelty moisture detector for plants
CN101598691B (zh) * 2009-07-03 2011-04-13 云南省林业科学院 一种植物含水量的测定方法
US8997682B1 (en) 2011-08-31 2015-04-07 Thomas William David Ashcroft Moisture indicator for potted plant soil
JP5692826B2 (ja) * 2013-06-06 2015-04-01 キャビノチェ株式会社 土壌用水分インジケータ
CN103592248A (zh) * 2013-12-05 2014-02-19 河南农大迅捷测试技术有限公司 土壤含水率的比色测定方法
FR3019647B1 (fr) * 2014-04-08 2017-12-22 Bouillard Indicateur de niveau d'eau pour recipient, notamment pour bac a fleurs a reserve d'eau
EP3680656A4 (fr) * 2017-09-08 2021-11-10 Cabinotier Co., Ltd. Indicateur d'humidité du sol, unité de détection d'eau utilisée dans l'indicateur d'humidité du sol, boîtier de corps, procédé de fabrication d'unité de détection d'eau et procédé de fabrication d'indicateur d'humidité du sol
CN110987237A (zh) * 2019-11-25 2020-04-10 桂林理工大学 一种好氧堆肥过程中堆体内含水率实时监测的方法
CN113940259A (zh) * 2021-09-09 2022-01-18 姬翠娥 一种塑料纤维渗灌管
CA3235486A1 (fr) * 2021-10-18 2023-04-27 Rodney Bierhuizen Appareil indicateur d'humidite et procedes de fabrication de celui-ci

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019638A (en) * 1959-11-02 1962-02-06 William F Klein Moisture indicating device
US3824844A (en) * 1973-05-11 1974-07-23 Water Rite Inc Soil moisture monitor

Also Published As

Publication number Publication date
JPS5197494A (fr) 1976-08-27
US3951098A (en) 1976-04-20

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