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Aerospace Instrument-Making Annotation << Back
PARAMETRIC SYNTHESIS OF THE SMOOTHER OF ACCELEROMETER, WHICH FUNCTIONS IN THE REGIME OF THE AUTO-OSCILLATIONS |
A.N. Maletin, I.V. Fominov, M.A. Khatanzeyskaya
The synthesis of the smoother, connected to the direct circuit of compensating type pendulum micromechanical accelerometer, is examined which functions in the regime of auto-oscillations. Are given the results of the analysis of the influence of noise of amplifier on the formation of the erroneous switchings of a nonlinear element of the type «hysteresis loop», which leads to essential errors of measurement of the apparent acceleration. It is shown that the connection of filter at the entrance of nonlinear element contributes to the suppression of high-frequency interferences and to an increase in the accuracy of measurement in the assigned range. The results of a study are carried out with the use of imitation mathematical simulation. The method of iterative successive approximation is used for the search for the optimum values of the parameters of damper.
Key words: micromechanical accelerometer, which functions in the regime of auto-oscillations, smoother, parametric synthesis, a random error of measurement.
DOI: 10.25791/aviakosmos.08.2019.819
Contacts: -
Pp. 45-55. |
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