The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 1993
Filed:
Feb. 21, 1992
Michael C Moorman, Princeton, NJ (US);
ABB Power T&D Company Inc., Blue Bell, PA (US);
Abstract
A method for measuring an unknown voltage (V.sub.IN) using a voltage divider network in such a way that uncertainties in the values of the resistances do not affect the measurement. The unknown voltage is divided into three fractional voltages, the fractional voltages are measured, and the unknown voltage is computed on the basis of the fractional voltages. The unknown voltage is divided with a voltage divider comprising first, second and third resistors, and a first voltage (V.sub.o1) is measured across the first resistor, a second voltage (V.sub.o2) is measured across the second resistor and a third voltage (V.sub.o3) is measured across the third resistor. The unknown voltage V.sub.IN is computed in accordance with the equations disclosed in the specification.