Irrigation control system
First Claim
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1. A tensiometer for use in determining matric potential of a soil comprising:
- a water inlet;
a hydraulic coupler comprising a porous material for providing hydraulic coupling between water that enters the inlet and the soil; and
a septum through which water can pass and that seals water that enters the inlet against ingress of air via the porous material.
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Accused Products
Abstract
A tensiometer for use in determining matric potential of a soil comprising: a water inlet; a hydraulic coupler comprising a porous material for providing hydraulic coupling between water that enters the inlet and the soil; and a septum that seals water that enters the inlet against ingress of air via the porous material.
22 Citations
42 Claims
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1. A tensiometer for use in determining matric potential of a soil comprising:
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a water inlet; a hydraulic coupler comprising a porous material for providing hydraulic coupling between water that enters the inlet and the soil; and a septum through which water can pass and that seals water that enters the inlet against ingress of air via the porous material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. An irrigation system comprising:
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an irrigation pipe having at least one output orifice for outputting water from the pipe; at least one tensiometer for use in determining matric potential of a soil, comprising; a water inlet; a hydraulic coupler comprising a porous material for providing hydraulic coupling between water that enters the inlet and the soil; and a septum that seals water that enters the inlet against ingress of air via the porous material, wherein; the at least one tensiometer is coupled to the irrigation pipe so that water output from an orifice of the at least one orifice is constrained to pass substantially directly from the orifice through the hydraulic coupler.
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39. A tensiometer for use in determining matric potential of a soil comprising:
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a water inlet; a hydraulic coupler comprising a porous material for providing hydraulic coupling between water that enters the inlet and the soil; a septum that seals water that enters the inlet against ingress of air via the porous material; and an elastic member that resiliently presses the porous material to the septum. - View Dependent Claims (40, 41, 42)
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Specification