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METHOD OF AUTONOMOUS IDENTIFICATION OF CONVERSION FACTOR OF PENDULUM COMPENSATING ACCELEROMETER ON THE BASIS OF A REFERENCE MODEL

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The actual task of testing metrological characteristics of measuring devices incorporated into spacecraft control system during orbital flight is considered. The task is performed on the example of a pendulum accelerometer of the compensation type. Test actions on the feedback circuit of the accelerometer are developed, the transient characteristic of the corresponding response signals of the accelerometer are analyzed. The developed method of autonomous indirect identification of the conversion factor of pendulous compensating accelerometer is based on an iterative procedure of refinement of the reference model, and is characterized by the use of analytical expressions for the transition process under test actions. Numerical results are presented to confirm that the proposed method allows for highly accurate determination of the changing conversion factor for compensating accelerometer in conditions of orbital flight by built-in hardware and software means.

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