INERTIAL MEASURING INSTRUMENT Russian patent published in 2007 - IPC G01C21/18 G01P15/18 

FIELD: orientation and navigation systems of flying vehicles.

SUBSTANCE: proposed inertial measuring instrument contains inertial sensitive elements in form of gyroscope and accelerometer mounted on shaft provided with ball bearing supports; rotor of electric motor and rotor of shaft turn angle sensors are also mounted on this shaft. Mounted on body of instrument are electric motor stator and electric transducer of shaft turn angle sensor. Outputs of gyroscope and accelerometer are connected with respective inputs of output information processing electronic unit by means of communication devices; output of photoelectric transducer of shaft turn angle sensor is connected with other inputs of this device through conjugation unit. Single-component functionally completed modules in form of assembly units of gyroscope and accelerometer are used as inertial sensitive elements. The following components are additionally introduced: platform rigidly connected with shaft, sliding circular current leads, microprocessor unit, communication interfaces, gyroscope and accelerometer service electronic boards. Measuring axes of gyroscope and accelerometer are parallel relative to each other and are perpendicular relative to axis of rotation of shaft. Sliding circular current leads are placed between shaft with platform and body. Output information processing unit is provided with microprocessor with communication interface. Sliding circular current leads or contactless infrared interfaces are used as unit for connection of service electronic board outputs of gyroscope and accelerometer.

EFFECT: enhanced accuracy of measurement of absolute angular velocities and phantom acceleration.

5 cl, 12 dwg