INERTIAL DATA CONVERSION UNION Russian patent published in 2012 - IPC G01C23/00 

FIELD: instrument making.

SUBSTANCE: proposed unit comprises base with two sets of accelerometers and two optical units with three laser gyros, system to excite optical unit angular oscillations. Measurement axis of every accelerometers of the first set is arranged at angular distance of 37.377…° relative to axes of co-ordinates. Measurement axis of every accelerometer of the second set is located at angular distance of 79.187…° relative to aforesaid axis. Measurement axis of every laser gyro of the first optical unit is located at angular distance of 54.7356° relative to aforesaid axis. Measurement axis of every laser gyro of the second optical unit is located at angular distance of 125.2644° relative to aforesaid axis. Aforesaid excitation system allows second optical unit angular oscillations run in antiphase to first optical unit angular oscillations.

EFFECT: higher reliability and accuracy.

3 cl, 12 dwg