Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1979-03-29
1980-12-09
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
G01R 3122
Patent
active
042387329
ABSTRACT:
The disclosed method qualifies diodes for microwave power combiners having a central cavity, and having N diode oscillator circuits spaced around the cavity for furnishing energy thereto. It includes the steps of activating only one of the N oscillator circuits, and then measuring the frequency at which the diode in that circuit supplies maximum power to the cavity. This power is measured by means of a probe having an electric field coupling of N.sub.11 with the cavity, where N.sub.11 equals N.sub.12 /.sqroot.N, and where N.sub.12 is the corresponding electric field coupling that is used to remove power from the cavity when all N of the oscillator circuits are simultaneously activated. These steps are repeated on each of the individual diodes to be tested. The diodes which qualify for simultaneous use in the combiner are only those which have measured frequencies of maximum power lying within a predetermined frequency band.
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Iperen et al., An Accurate Bridge Method for Impedance Measurements of Impatt Diodes, Technical Feature, Nov. 1972 pp. 29-33.
General Dynamics Corporation
Johnson Edward B.
Krawczewicz Stanley T.
Martin Neil F.
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