GB9918341D0 - Hydrometer for house-plants - Google Patents

Hydrometer for house-plants

Info

Publication number
GB9918341D0
GB9918341D0 GBGB9918341.0A GB9918341A GB9918341D0 GB 9918341 D0 GB9918341 D0 GB 9918341D0 GB 9918341 A GB9918341 A GB 9918341A GB 9918341 D0 GB9918341 D0 GB 9918341D0
Authority
GB
United Kingdom
Prior art keywords
hydrometer
plants
house
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.)
Withdrawn
Application number
GBGB9918341.0A
Other versions
GB2353360A (en
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.)
BOOTH HERBERT
Original Assignee
BOOTH HERBERT
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 BOOTH HERBERT filed Critical BOOTH HERBERT
Priority to GB9918341A priority Critical patent/GB2353360A/en
Publication of GB9918341D0 publication Critical patent/GB9918341D0/en
Publication of GB2353360A publication Critical patent/GB2353360A/en
Withdrawn legal-status Critical Current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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00—Watering gardens, fields, sports grounds or the like
    • A01G25/16—Control of watering
    • A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • 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
    • G01N33/246—Earth materials for water content
GB9918341A 1999-08-05 1999-08-05 Device for monitoring soil moisture content Withdrawn GB2353360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9918341A GB2353360A (en) 1999-08-05 1999-08-05 Device for monitoring soil moisture content

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9918341A GB2353360A (en) 1999-08-05 1999-08-05 Device for monitoring soil moisture content

Publications (2)

Publication Number Publication Date
GB9918341D0 true GB9918341D0 (en) 1999-10-06
GB2353360A GB2353360A (en) 2001-02-21

Family

ID=10858539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9918341A Withdrawn GB2353360A (en) 1999-08-05 1999-08-05 Device for monitoring soil moisture content

Country Status (1)

Country Link
GB (1) GB2353360A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001091027A1 (en) * 2000-05-06 2001-11-29 Park Jung Yeon Apparatus and method for digitally controlling plant pot, and method for ordering plant pot delivering on-line
US7231815B2 (en) 2004-12-02 2007-06-19 Construction Technology Laboratories, Inc. Relative humidity probe for concrete
WO2006060016A1 (en) * 2004-12-02 2006-06-08 Construction Technology Laboratories, Inc. Relative humidity probe for concrete
GB2432673A (en) * 2005-11-24 2007-05-30 Hollybush Primary School Plant soil dryness detector
US8047056B2 (en) 2007-10-22 2011-11-01 Construction Technology Laboratories, Inc. Moisture vapor probe
CN102288225B (en) * 2011-07-29 2015-05-13 胡加 Plant development and growth environment prompter and plant ecological condition monitoring and adjusting method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020417A (en) * 1975-11-26 1977-04-26 Turf Service Laboratories, Inc. Soil moisture indicator device
US4122389A (en) * 1977-05-23 1978-10-24 Tandy Corporation Moisture sensor
GB2320572A (en) * 1996-12-19 1998-06-24 Peter Hulme Plant moisture detector

Also Published As

Publication number Publication date
GB2353360A (en) 2001-02-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)