摘要 |
FIELD: fiber optics, design of transducers of physical quantities based on fiber interferometers and of fiber-optical gyroscopes. SUBSTANCE: method of compensation of phase difference in ring interferometer of fiber-optical gyroscope consists in supply of stepped sawtooth voltage with duration of step equal to time of path of light beam in ring interferometer to wide-band electrooptical phase modulators of ring interferometer and in change of voltage within limits of period from zero value to level at which phase shift equals pi radian and again to zero level with cyclic alternation of change of direction of magnetic-field vector in waveguide of modulator to opposite one at time moment at which phase shift equals pi radian or zero by way of compensation of commutation of modulator electrodes. EFFECT: avoidance of drop of stepped sawtooth voltage, diminished maximum amplitude of stepped sawtooth voltage formed in electron path of information processing. 1 cl, 6 dwg
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