Phase comparator

Details Phase comparator Phase comparator

1983-12-29

1987-01-06

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Phase comparison

324 83FE, G01R 2500

Patent

active

046349677

ABSTRACT:
The invention relates to a phase comparator making it possible to measure the phase displacement between several very high stability oscillators and having for this purpose a system of pairs of measuring cascades each being connected to an oscillator and supplying a first and a second signal. It also comprises a multiplexer, a counting circuit, a computer and a computer coupler making it possible to compare the first signals in pairs in order to obtain a measuring range in which is located the phase displacement between two given oscillators and making it possible to compare the two signals, in order to obtain the displacement measurements in said range.

REFERENCES:
patent: 3828279 (1974-08-01), Labarber
Transactions of the IECE of Japan, vol. E-65, No. 3, Mar. 1982, pp. 154-158, Tokyo, Y. Ogawa et al: "Doppler Shift in a Standard Frequency via a Broadcasting Satellite".
IEEE Transactions on Nuclear Science, vol. NS-28, No. 3, partie 1, Jun. 1981, pp. 2158-2159, NY, D. W. Reid et al: "A 360 Degree Digital Phase Detector with 100-khz Bandwidth".

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