Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1995-03-03
1996-06-18
Wieder, Kenneth A.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324 66, G01R 3102
Patent
active
055281524
ABSTRACT:
In a method for measuring transmission parameters of a balanced pair, a unbalanced type equipment which is widely used as compared to a balanced type equipment which is not used in practical is used. In the measurement, the balanced pair is connected to the unbalanced type equipment or via a unbalanced/balanced type transformer thereto at the measuring end, wherein predetermined terminated states are set at the measuring and far-ends to measure input admittances dependent on the terminated states. A characteristic impedance and a propagation constant for the transmission parameters are calculated from predetermined equations into which the measured input admittances are substituted.
REFERENCES:
patent: 5168237 (1992-12-01), Fieau et al.
patent: 5402073 (1995-03-01), Ross
patent: 5444759 (1995-08-01), Vogt, III et al.
Hinoshita Shinji
Ohmori Nobuo
Do Diep
Hitachi Cable Ltd.
Wieder Kenneth A.
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