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Method for assessing intra-turn instability of rotation speed of a simulation stand axes
https://doi.org/10.17586/0021-3454-2025-68-1-67-78
Abstract
A method for estimating intra-turn instability of the rotation speed of the axes of a simulation stand is proposed. The method is based on cross-calibration of the angular velocity sensor based on the value of the rotation speed of the stand faceplate measured using the fixed angle method. The proposed method allows to increase the reliability of the output data of the angular velocity sensor and, based on the measured values of the instantaneous rotation speed, to estimate the instability of the latter and to isolate the systematic component of the error in the rotation speed of the axes of the simulation stand within a turn. Using a slot sensor (as a zero mark) and a fiber-optic gyroscope (as a meter for the rotation speed of the faceplate around the axes of the rig), the rotation speed of the faceplate around the axes of a two-axis stand is measured and the errors in their instability are estimated. The obtained data are analyzed, the systematic component of the error in the rotation speed of the faceplate of a two-axis stand around its outer axis is isolated. Using the obtained results in the calibration algorithms of inertial sensors and systems will increase the accuracy and reliability of these calibrations.
Keywords
simulation stand,
rotation speed error,
rotation speed instability,
cross calibration,
slot sensor,
fiber optic gyroscope
Supporting agencies: The work was supported by the grant of the Russian Science Foundation No. 20-19-00412-P
About the Authors
V. A. Lazarev
St. Petersburg Electrotechnical University
Russian Federation
Russian Federation
Vyacheslav A. Lazarev — Department of Laser Measuring and Navigation Systems; Assistant
St. Petersburg
P. A. Ivanov
St. Petersburg Electrotechnical University
Russian Federation
Russian Federation
Alexandr I. Ivanov — PhD, Associate Professor; Department of Laser Measuring and Navigation Systems
St. Petersburg
A. D. Uskov
St. Petersburg Electrotechnical University
Russian Federation
Russian Federation
Aleksandr D. Uskov — Student; Department of Laser Measuring and Navigation Systems
St. Petersburg
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Review
For citations:
Lazarev V.A., Ivanov P.A., Uskov A.D. Method for assessing intra-turn instability of rotation speed of a simulation stand axes. Journal of Instrument Engineering. 2025;68(1):67-78. (In Russ.) https://doi.org/10.17586/0021-3454-2025-68-1-67-78
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