FIELD: instrument making.
SUBSTANCE: invention relates to instrument-making and can be used in designing single- and three-axes meters of movement parameters - angular velocities and linear accelerations for inertial navigation systems and flight control systems for mobile objects. Disclosed is a method for compensation of temperature dependence of systematic components of drift of gyroscopic sensors, including measurement in factory conditions in the process of debugging sensitive elements of values of systematic components in the form of zero signals and scaling factors at fixed values of a row of temperatures within the operating range, description of piecewise linear or polynomial approximation of dependence of zero signal and scaling factor from the temperature. Herewith the measurement of systematic components in the form of zero signals and scaling factors at fixed values of the row of temperatures within the operating range is carried out during at least two runs of the sensitive elements. Calculated are average values of zero signals and scaling factors at fixed values of the row of temperatures within the operating range obtained during the runs. Obtained average values are used to determine coefficients of piecewise linear or polynomial approximation of temperature dependence. Then those coefficients are recorded into a microcontroller for the possibility of algorithmic compensation of the temperature dependence of zero signals and scaling factors during operation.
EFFECT: technical result is the increase of accuracy characteristics of gyroscopic sensors.
1 cl, 3 dwg
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Authors
Dates
2016-09-20—Published
2015-08-11—Filed