FR2418623A1 - Automatic watering system control - has probe shielded by tunnel, with solenoid valve control circuit completed when moisture content increases to min. conduction level - Google Patents

Automatic watering system control - has probe shielded by tunnel, with solenoid valve control circuit completed when moisture content increases to min. conduction level

Info

Publication number
FR2418623A1
FR2418623A1 FR7806576A FR7806576A FR2418623A1 FR 2418623 A1 FR2418623 A1 FR 2418623A1 FR 7806576 A FR7806576 A FR 7806576A FR 7806576 A FR7806576 A FR 7806576A FR 2418623 A1 FR2418623 A1 FR 2418623A1
Authority
FR
France
Prior art keywords
tunnel
solenoid valve
moisture content
content increases
control circuit
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Withdrawn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
FR7806576A
Other languages
French (fr)
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.)
GAURY ROGER
Original Assignee
GAURY ROGER
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 GAURY ROGER filed Critical GAURY ROGER
Priority to FR7806576A priority Critical patent/FR2418623A1/en
Publication of FR2418623A1 publication Critical patent/FR2418623A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental Sciences (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The watering of an area of ground is controlled as a function of the conductivity of the soil beneath a tunnel. The sides of the tunnel are embedded sufficiently deeply in the ground to ensure that moisture reaches the soil below the tunnel only through capillary action from the soil at either end of the tunnel. Wires (L) are connected in circuit with a clock switch and a solenoid valve of the watering apparatus. When the soil beneath the tunnel is sufficiently damp to allow a current to flow between the wires (L) through the soil, the solenoid valve is closed and watering stops.
FR7806576A 1978-03-02 1978-03-02 Automatic watering system control - has probe shielded by tunnel, with solenoid valve control circuit completed when moisture content increases to min. conduction level Withdrawn FR2418623A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7806576A FR2418623A1 (en) 1978-03-02 1978-03-02 Automatic watering system control - has probe shielded by tunnel, with solenoid valve control circuit completed when moisture content increases to min. conduction level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7806576A FR2418623A1 (en) 1978-03-02 1978-03-02 Automatic watering system control - has probe shielded by tunnel, with solenoid valve control circuit completed when moisture content increases to min. conduction level

Publications (1)

Publication Number Publication Date
FR2418623A1 true FR2418623A1 (en) 1979-09-28

Family

ID=9205477

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7806576A Withdrawn FR2418623A1 (en) 1978-03-02 1978-03-02 Automatic watering system control - has probe shielded by tunnel, with solenoid valve control circuit completed when moisture content increases to min. conduction level

Country Status (1)

Country Link
FR (1) FR2418623A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998038491A1 (en) * 1997-02-28 1998-09-03 Commonwealth Scientific And Industrial Research Organisation Moisture detection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113724A (en) * 1962-04-16 1963-12-10 Bough Bjorn N De Automatic watering systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113724A (en) * 1962-04-16 1963-12-10 Bough Bjorn N De Automatic watering systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998038491A1 (en) * 1997-02-28 1998-09-03 Commonwealth Scientific And Industrial Research Organisation Moisture detection
EP0975951A1 (en) * 1997-02-28 2000-02-02 Commonwealth Scientific And Industrial Research Organisation Moisture detection
EP0975951A4 (en) * 1997-02-28 2001-06-13 Commw Scient Ind Res Org Moisture detection

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Legal Events

Date Code Title Description
ST Notification of lapse