Method and apparatus for the determination of start time...

Details Method and apparatus for the determination of start time... Method and apparatus for the determination of start time...

G - Physics

01

R

328/88

G01R 25/00 (2006.01) G01V 1/04 (2006.01)

Patent

CA 1051099

METHOD AND APPARATUS FOR THE DETERMINATION OF START TIME DIFFERENCE AND OVERALL PHASE SHIFT BETWEEN TWO SIGNALS (D#71,200-DTA117 -F') ABSTRACT OF THE DISCLOSURE Apparatus and method determines the time shift and total phase difference between two alternating current signals. A value ?(f) corresponding to the phase relation- ship between the two signals is determined for each fre- quency f contained in the two signals. A slope A and an ordinate section D of the best fitting straight line g(f)=Af + B through the totality of the values ? (f) so obtained is determined. The phase shift ? o=B modulo (2.pi.) is determined from the ordinate section B and the time shift ?; = A/2.pi. from the slope A. I

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