Detector for dewatering soil in pot

Abstract

PURPOSE: To effectively detect the timing of watering and to take advantage of the detection for evading a failure in watering by measuring the rest of water when a water rest sensor part is stuck into the soil in the pot to proper depth. CONSTITUTION: The dewatering detector consists of a thermometer type external case 1, the water rest sensor part 2 incorporated in the tip part of the external case 1, an index display part 3' provided to the rear end part of the external case 1, and a microcomputer 4 which is incorporated in the case 1 so that the water rest sensor part 2 is its input side and the display part is its output side. Then when the water rest sensor part 2 is stuck into the soil in the pot by the proper depth, the water rest sensor part 2 measures the rest of water. The measurement result is displayed on display parts 3 and 3'. Consequently, the timing of watering is detected effectively and utilized to evade the failure in watering. COPYRIGHT: (C)1989,JPO&Japio

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    JP-S5227287-B1July 19, 1977

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Cited By (5)

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    US-7658096-B2February 09, 2010Setra Systems, Inc.Humidity sensing apparatus
    US-8047056-B2November 01, 2011Construction Technology Laboratories, Inc.Moisture vapor probe
    WO-2006060016-A1June 08, 2006Construction Technology Laboratories, Inc.Sonde de mesure de l’humidité relative pour le béton
    WO-2007139533-A1December 06, 2007Construction Technology Laboratories, Inc.Sonde d'humidité relative pour béton