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DYNAMIC MODEL OF AN OPTOELECTRONIC SYSTEM FOR MEASURING THE PARAMETERS OF A VIBRATION SUPPORT IN A LASER GYROSCOPE

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An optoelectronic system that measures relative vibration parameters of a laser gyro sensing element in the dither mode is studied. The system enables to compensate the component of the gyro output signal caused by the oscillations. The measuring system under consideration consists of a flat miniature pattern plate mounted on the sensing element monoblock, an optoelectronic module mounted on the laser gyro body and an electronic unit for processing electrical signals. The system operation is based on registration of laser radiation reflected from areas of the pattern plate with micromarks. A dynamic model of the measuring system is constructed with the use of equations of analytical mechanics. The developed model enables to study translational and rotational motions of the system elements. Results of numerical modeling of the motion of the gyroscope sensing element rigidly connected to the pattern plate, are presented. It is anticipated that the motion parameters obtained with the model will make it possible to estimate the instrumental errors of the measuring system.

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