Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1987-10-27
1989-08-01
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 58A, 324 58B, G01R 2704
Patent
active
048536130
ABSTRACT:
A calibration procedure for vector network analyzers utilizing a known standard, an unknown standard and a pair of offsets bearing a known length ratio (2:1) between them whereby measurements taken on the standards and their combinations with the offsets result in self-verifying redundant equations which furnish: (1) error terms according to well-known flow graph models, (2) the reflection of the unknown standard, (3) the transmission factor of the waveguiding medium from which the offsets are realized regardless of the waveguide's loss or dispersion, and (4) a figure of merit (corruption coefficient) for the quality of the acquired raw data without the necessity for computing the error terms, connecting verification standards or otherwise completing the calibration process.
REFERENCES:
patent: 4680538 (1987-07-01), Dalman
patent: 4721901 (1988-01-01), Ashley
Hewlett-Packard product Note 8510-5: "Specifying Calibration Standards for the HP8510"-Mar. 1986.
Franzen: "A New Procedure for System Calibration . . . "-5th European Microwave Conference-Sep. 1975.
Jakhete Rajendra S.
Sequeira Hermann B.
Trippe Michael W.
Chin Gay
Eisel James B.
Eisenzopf Reinhard J.
Martin Marietta Corporation
Solis Jose M.
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