Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison
Patent
1976-01-28
1977-01-04
Segal, Robert
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Phase comparison
324114, 324140R, G01R 2500
Patent
active
040016811
ABSTRACT:
A vector voltmeter for measuring the amplitude and phase difference between two signals. A first signal is fed to a power divider in which one of its outputs is measured with a power detector and the other output is fed to a second divider, each output thereof being fed one each to a third and fourth power divider. The second signal is fed to a fifth power divider in which one of its outputs is measured by a second power detector and the other output of the fifth divider is fed to a hybrid circuit having quadrature outputs, one of which is fed to the third power divider whose output is measured by a third power detector and the other quadrature output is fed to the fourth power divider whose output is measured by a fourth power detector. The four power detectors are connected to two differential amplifiers which drive the X and Y axis of an oscilloscope.
REFERENCES:
patent: 3083336 (1963-03-01), Poirier
Engen Glenn F.
Hoer Cletus A.
Rusz Joseph E.
Segal Robert
Siegel Julian L.
The United States of America as represented by the Secretary of
Tokar Michael J.
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