METHOD OF DETERMINING SCALING FACTORS OF LASER GYROSCOPE Russian patent published in 2017 - IPC G01C25/00 

FIELD: physics, measurement technology.

SUBSTANCE: invention relates to gryscope instrument-making and is meant for determining scaling factors of a laser gyroscope when performing calibration (certification) of strap down inertial navigation systems. The method of determining scaling factors of a laser gyroscope comprises mounting a laser gyroscope on the face plate of a rotary table, further successively turning the face plate in opposite directions by a fixed angle α_T, wherein at the output of the laser gyroscope for its sensitivity axis, the number of information symbols and their sign are recorded, wherein the turns of the face plate by an angle α_T are performed successively relative to three orthogonal axes of rotation OX, OY, OZ, with each sensitivity axis of the laser gyroscope making a complete turn by an angle α_T, then determining the scaling factor K_i of the corresponding sensitivity axis of the laser gyroscope from the relationship: where i=1, 2, … is the number of the sensitivity axis of the laser gyroscope; is the half-difference between the number of information pulses, detected for the i-th sensitivity axis of the laser gyroscope during successive turns of the face plate in opposite directions by an angle α_T relative to the axis of rotation OX; is the half-difference between the number of information pulses detected for the i-th sensitivity axis of the laser gyroscope during successive turns of the face plate in opposite directions by an angle α_T relative to the axis of rotation OY; is the half-difference between the number of information pulses detected for the i-th sensitivity axis of the laser gyroscope during successive turns of the face plate in opposite directions by an angle α_T relative to the axis of rotation OZ.

EFFECT: invention increases the accuracy of determining scaling factors of a laser gyroscope and broadens functional capabilities.

2 dwg