Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1989-08-28
1990-09-04
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
324724, 324715, 324694, 324692, 73 73, G01R 2722
Patent
active
049547836
ABSTRACT:
A corn moisture tester is adapted to measure the moisture content of corn kernels on an ear of corn. The ear of corn may be affixed to the corn stalk. The device includes an ear cradle, a pair of electrode blades and circuit for measuring a moisture-dependent electrical property of the corn kernels. The cradle is adapted for receiving an ear of corn and includes two portions hinged together so they may be opened to receive the ear. When the cradle portions are closed, they form a substantially cylindrical interior cradle surface for engaging the ear of corn. The conductor blades are mounted to one portion of the cradle to pierce the kernels but not the cob when the cradle is closed about an ear under test. The electrical property measuring circuit generates and displays a signal representative of moisture.
REFERENCES:
patent: 1987244 (1935-01-01), Moore
patent: 3218552 (1965-11-01), Asmann et al.
patent: 3427537 (1969-02-01), Osborne
patent: 3967198 (1976-06-01), Gensler
patent: 4019132 (1977-04-01), Loch
patent: 4039942 (1977-08-01), Glaser
patent: 4259633 (1981-03-01), Rosenau
patent: 4451781 (1984-05-01), Anderson
Kang et al., "An Electronic Probe for Estimating Ear Moisture Content of Maize", Crop Science, vol. 18, Nov./Dec. '78, pp. 1083-1084.
Eisenzopf Reinhard J.
Harvey Jack B.
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