ANGULAR VELOCITY SENSOR Russian patent published in 2012 - IPC G01P9/00 

FIELD: physics.

SUBSTANCE: angular velocity sensor has a dynamically adjusted gyroscope with an angle and torque sensor, an ac power supply, an ac amplifier, a phase demodulator and a dc amplifier on each measuring axis of the angular velocity sensor. Each of the angle sensors is based on a bridge circuit comprising two resistors and two windings on cores. The angular velocity sensor includes three differential amplifiers. The inputs of the first differential amplifier are connected to the outputs of the ac power supply and the inputs of the second differential amplifier are connected to leads of one of the windings of the angle sensor. The outputs of the first and second differential amplifiers are connected to inputs of the third differential amplifier. The gain of the first differential amplifier is equal to the gain of the second differential amplifier multiplied by the ratio of the voltage across the winding to the output voltage of the ac power supply.

EFFECT: high accuracy of measuring angular velocity.

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