Apparatus for measuring the vector voltage ratio of two A.C. sig

Details Apparatus for measuring the vector voltage ratio of two A.C. sig Apparatus for measuring the vector voltage ratio of two A.C. sig

1980-01-25

1981-12-15

Ruggiero, Joseph F.

Boots, shoes, and leggings

328133, 328161, 364483, G06G 716

Patent

active

043062970

ABSTRACT:
An apparatus is disclosed for determining the vector voltage ratio of two a.c. input signals. A synchronous rectifying circuit, a phase shifter and a voltmeter are employed to detect the in-phase and orthogonal components of the input signals relative to a reference signal. A calculation section determines the vector voltage ratio from the values of these components.

REFERENCES:
patent: 3204185 (1965-08-01), Robinson
patent: 3321614 (1967-05-01), Levadi
patent: 3363188 (1968-01-01), Gardere
patent: 3456190 (1969-07-01), Renner
patent: 3652930 (1972-03-01), Sugiyama et al.

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