GB1158573A - Improvements in or relating to Moisture Determining Devices - Google Patents

Improvements in or relating to Moisture Determining Devices

Info

Publication number
GB1158573A
GB1158573A GB675166A GB675166A GB1158573A GB 1158573 A GB1158573 A GB 1158573A GB 675166 A GB675166 A GB 675166A GB 675166 A GB675166 A GB 675166A GB 1158573 A GB1158573 A GB 1158573A
Authority
GB
United Kingdom
Prior art keywords
soil
visible
elongate member
moisture content
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
Application number
GB675166A
Inventor
Arthur Wilson Lambert
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.)
LAMBERT S LANCASTER Ltd
Original Assignee
LAMBERT S LANCASTER Ltd
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 LAMBERT S LANCASTER Ltd filed Critical LAMBERT S LANCASTER Ltd
Priority to GB675166A priority Critical patent/GB1158573A/en
Publication of GB1158573A publication Critical patent/GB1158573A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
    • 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
    • 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
    • A01G27/00—Self-acting watering devices, e.g. for flower-pots
    • A01G27/008—Component parts, e.g. dispensing fittings, level indicators

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Soil Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1,158,573. Testing moisture content. LAMBERT'S (LANCASTER) Ltd. Aug. 10, 1966 [Feb. 16, 1966], No. 6751/66. Heading G1S. A device for determining the presence of moisture in soil comprises an elongate member 10 of light transmitting material formed at one end with a foot 12 having a bottom light reflecting surface 13 adapted for location on the soil and a sloping viewing surface 14 with a curved light diffusing heal surface 15 behind the viewing surface. The elongate member 10 is in the form of a transparent rod of clear acrylic resin or polystyrene. In use when the bottom surface 13 is pressed firmly on the soil 16 Fig. 1 (not shown) the amount of light reflected from the bottom surface is dependent on the moisture content of the soil i.e. if a large dark patch is visible the soil is wet, several dark patches indicate dampness and if no dark patches are visible the soil is dry.
GB675166A 1966-02-16 1966-02-16 Improvements in or relating to Moisture Determining Devices Expired GB1158573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB675166A GB1158573A (en) 1966-02-16 1966-02-16 Improvements in or relating to Moisture Determining Devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB675166A GB1158573A (en) 1966-02-16 1966-02-16 Improvements in or relating to Moisture Determining Devices

Publications (1)

Publication Number Publication Date
GB1158573A true GB1158573A (en) 1969-07-16

Family

ID=9820120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB675166A Expired GB1158573A (en) 1966-02-16 1966-02-16 Improvements in or relating to Moisture Determining Devices

Country Status (1)

Country Link
GB (1) GB1158573A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846572A (en) * 1986-09-30 1989-07-11 Moistic Oy Moisture indicator
GB2249182A (en) * 1990-09-05 1992-04-29 Nat Res Dev Irrigation sensor device
EP1308085A2 (en) * 2001-10-31 2003-05-07 Flow-Rite Controls, Ltd. Apparatus and method for monitoring soil moisture conditions and for maintaining soil moisture conditions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846572A (en) * 1986-09-30 1989-07-11 Moistic Oy Moisture indicator
GB2249182A (en) * 1990-09-05 1992-04-29 Nat Res Dev Irrigation sensor device
GB2249182B (en) * 1990-09-05 1994-02-09 Nat Res Dev Irrigation sensor device
EP1308085A2 (en) * 2001-10-31 2003-05-07 Flow-Rite Controls, Ltd. Apparatus and method for monitoring soil moisture conditions and for maintaining soil moisture conditions
EP1308085A3 (en) * 2001-10-31 2003-07-16 Flow-Rite Controls, Ltd. Apparatus and method for monitoring soil moisture conditions and for maintaining soil moisture conditions

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees