Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1992-12-02
1994-08-02
Strecker, Gerard R.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
324692, 324696, 324724, 340602, 73 73, G01R 2702, G01N 2704
Patent
active
053349423
ABSTRACT:
A device for providing a signal emulating the wetness of plant leaves, includes a first generally horizontal surface; a second, generally upwardly facing sloped surface having an edge spaced above the first surface by a gap, so that drops of moisture can accumulate on the second surface, and run off the edge, bridging the gap, and first and second leads extending from the first and second surfaces, respectively, to measure the conductivity/resistivity across the gap. Also disclosed is a method of providing a signal emulating the wetness of plant leaves including the steps of: providing a first generally horizontal surface; providing a second, generally upwardly facing sloped surface having an edge spaced above the first surface by a gap, so that drops of moisture can accumulate on the second surface, and run off the edge, bridging the gap between the first and second surfaces; and measuring the conductivity/resistivity across the gap between the first and second surfaces.
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Hulse Mark M.
Shaffer, Jr. W. Hal
Do Diep
Strecker Gerard R.
The Curators of the University of Missouri of Columbia, Missouri
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