Method of and apparatus for determining amplitude ratios and pha

Details Method of and apparatus for determining amplitude ratios and pha Method of and apparatus for determining amplitude ratios and pha

1984-09-21

1986-06-24

LaRoche, Eugene R.

Oscillators

With device responsive to external physical condition

328 1, 34087025, G01N 2700

Patent

active

045969655

ABSTRACT:
An amplitude ratio and phase-difference analysis can be carried out with a measured object provided with a measured branch which is divided from a reference branch from a supply oscillator. The measured branch has 2.sup.n switching combinations of phase shifters which are decoupled from one another and operated by a controller. The branches then feed a mixer and through a band-pass filter calculating circuit for determining the relative amplitude and phase which can be displayed on a register.

REFERENCES:
patent: 3283574 (1966-11-01), Roth
patent: 3545258 (1966-09-01), Judd

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