Phase measurement by reversible cycle counting - using additional conversion channels for increased sensitivity, inversion rate and reliability
The phase measurement device for measuring the phase between two electrical signals using reversible cycle counting can be used in laser interferometer instruments for measurement of displace-ment and vibrations. Increased resolution inversion rate and reliability are achieved by adding phase conver...
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creator | L. M. MOSKALIK, V. E. RYADCHIKOV, A. P. BYKOV, V. P. KULESH, S. I. OPASOV ET A. A. ORLOV |
description | The phase measurement device for measuring the phase between two electrical signals using reversible cycle counting can be used in laser interferometer instruments for measurement of displace-ment and vibrations. Increased resolution inversion rate and reliability are achieved by adding phase conversion channels and using a different circuit arrangement compared to conventional arrangements. Additional phase conversion units (1) have their first inputs (6) connected to the first signal source (7). The second input (9) of each successive conversion unit is connected to that of the preceding unit via a phase shaft chain (10). The phase shift in each phase shift chain (10) is 'pi' divided by one more than the number of phase shift chains.
UN PHASEMETRE COMPORTE DEUX BLOCS DE CONVERSION DE PHASE 1 DOTE CHACUN DE DEUX SORTIES A NIVEAUX DE POTANTIEL 2 ET 3 ET DE DEUX SORTIES A IMPULSIONS 4 ET 5. LEURS PREMIERES ENTREES 6 SONT RACCORDEES A UNE PREMIERE SOURCE DE SIGNAUX D'ENTREE 7 ET LA DEUXIEME ENTREE 9 DU PREMIER BLOC DE CONVERSION DE PHASE 1 EST RACCORDEE A UNE DEUXIEME SOURCE DE SIGNAUX D'ENTREE 8 ET, A TRAVERS UN CIRCUIT DE DEPHASAGE 10 A LA DEUXIEME ENTREE 9 DU DEUXIEME BLOC DE CONVERSION DE PHASE 1. LE PHASEMETRE EST COMPLETE PAR N-2 BLOCS DE CONVERSION DE PHASE 1 (N ETANT SUPERIEUR A 2) QUI ONT LEURS PREMIERES ENTREES 6 RACCORDEES A LA PREMIERE SOURCE DE SIGNAUX D'ENTREE 7; LA DEUXIEME ENTREE 9 DE CHAQUE BLOC DE CONVERSION DE PHASE POSTERIEUR EST RELIEE A LA DEUXIEME ENTREE 9 DE CHAQUE BLOC DE CONVERSION DE PHASE ANTERIEUR A TRAVERS UN CIRCUIT DE DEPHASAGE 10, QUI INTRODUIT UN DEPHASAGE DE PN RADIANS. CE PHASEMETRE EST UTILISABLE DANS LES MESUREURS DE DEPLACEMENTS ET DE VIBRATIONS PAR INTERFEROMETRIE LASER. |
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UN PHASEMETRE COMPORTE DEUX BLOCS DE CONVERSION DE PHASE 1 DOTE CHACUN DE DEUX SORTIES A NIVEAUX DE POTANTIEL 2 ET 3 ET DE DEUX SORTIES A IMPULSIONS 4 ET 5. LEURS PREMIERES ENTREES 6 SONT RACCORDEES A UNE PREMIERE SOURCE DE SIGNAUX D'ENTREE 7 ET LA DEUXIEME ENTREE 9 DU PREMIER BLOC DE CONVERSION DE PHASE 1 EST RACCORDEE A UNE DEUXIEME SOURCE DE SIGNAUX D'ENTREE 8 ET, A TRAVERS UN CIRCUIT DE DEPHASAGE 10 A LA DEUXIEME ENTREE 9 DU DEUXIEME BLOC DE CONVERSION DE PHASE 1. LE PHASEMETRE EST COMPLETE PAR N-2 BLOCS DE CONVERSION DE PHASE 1 (N ETANT SUPERIEUR A 2) QUI ONT LEURS PREMIERES ENTREES 6 RACCORDEES A LA PREMIERE SOURCE DE SIGNAUX D'ENTREE 7; LA DEUXIEME ENTREE 9 DE CHAQUE BLOC DE CONVERSION DE PHASE POSTERIEUR EST RELIEE A LA DEUXIEME ENTREE 9 DE CHAQUE BLOC DE CONVERSION DE PHASE ANTERIEUR A TRAVERS UN CIRCUIT DE DEPHASAGE 10, QUI INTRODUIT UN DEPHASAGE DE PN RADIANS. CE PHASEMETRE EST UTILISABLE DANS LES MESUREURS DE DEPLACEMENTS ET DE VIBRATIONS PAR INTERFEROMETRIE LASER.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
title | Phase measurement by reversible cycle counting - using additional conversion channels for increased sensitivity, inversion rate and reliability |
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