METHOD OF MEASUREMENT OF ANGULAR VELOCITY AND DEVICE FOR ITS ACCOMPLISHMENT Russian patent published in 1994 - IPC

FIELD: instrumentation engineering. SUBSTANCE: optical radiation for optical radiation source is split into two waves in an optical radiation splitter and propagated in the coil of fiber-optic light conduit in counter directions, the waves propagating in counter directions are additionally aligned in the optical radiation receiver. The maximum intensity of interference band is obtained at the first frequency modulator, changing the wave shift frequency, the obtained voltage is measured at the display, then the minimum intensity of interference band is obtained at the first frequency modulator, changing the wave shift frequency, the obtained voltage is measured, the arithmetic mean of the obtained voltages is determined, changing the wave shift frequency, the first value of optical radiation voltage is measured, which is than converted into a code by means an analog-to-digital converter and entered in the on-line storage of the computing unit of the fibre-optic light coil angular velocity around its longitudinal axis and generator control. Wave frequency are shifted by the second modulator towards increase. The second value of voltage is measured, which is then entered in the storage of the angular velocity computing unit, the frequency shift is reversed by the second modulator, and the third value of voltage is measure, which is then enters in the on-line storage of the angular velocity computing unit. The frequency shift of the waves obtained at arithmetical mean of voltages is reversed, the fourth value of voltage is measured and entered in the storage of the angular velocity computing unit. Angular velocity with due account made for the sense of rotation is computed according to the values of voltages written in the on-line storage in compliance with formula. EFFECT: enhanced accuracy and sensitivity of measurement of angular velocity. 2 cl, 4 dwg