Method and apparatus for measuring the moisture content of a substance
Patent 4845421 Issued on July 4, 1989. Estimated Expiration Date: 
October 9, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 9, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3211171 3528287 InventorsAssigneeApplicationNo. 07/107367 filed on 10/09/1987US Classes:324/688, Including a guard or ground electrode324/665, By comparison or difference circuit324/683, With phase signal processing circuit324/689, To determine water content73/335.04CapacitanceExaminersPrimary: Eisenzopf, Reinhard J.Assistant: Regan, Maura K. Attorney, Agent or FirmInternational ClassG01N 27/22 (20060101)Foreign Application Priority Data1986-10-10 AUAbstractThe moisture content of a substance (1) on a moving belt (2) is measured as a function of dielectric constant. Two pairs of electrodes (4), (5) are positioned adjacent the belt, an inner pair of electrodes (4) and an outer pair (5), an A.C. potential is applied to the electrodes, the flux from the outer pair (5) passing through the substance (1) at a greater distance than the flux from the inner pair (4). | |
