METHOD FOR PROVIDING SCALE COEFFICIENT LINEARITY OF PENDULUM WIDE-RANGE ACCELEROMETER OF COMPENSATORY TYPE Russian patent published in 2017 - IPC G01P15/13 G01P21/00 

FIELD: measuring equipment.

SUBSTANCE: during the setup process, an accelerometer is installed on the centrifuge, a series of linear accelerations is set in series in the accelerometer measurement range, the accelerometer output signal is measured depending on the value of the specified linear acceleration, the system parameters are adjusted, ensuring the linearity of the output signal dependence from the specified linear acceleration. According to the invention, after measuring the sequence of values of the output information dependence Q_{out n} from the given linear accelerations a_n= g⋅n, where n is the overload value, the values of the correction factors are determined F_corr(n) = Q_{out 1}⋅n/Q_{out n}, where Q_{out 1} is the output information under the action of linear acceleration a₁= g, Q_{out 1}⋅n is the value of the output information, which must have been obtained under the condition of the scale coefficient linearity; by means of an external computer, the approximation of the function F_corr(n) is performed, polynomial approximant data is entered into the memory of the accelerometer feedback microcontroller, while operating the accelerometer, the partial segments of polynom are determined by the microcontroller, including accelerations measured by the accelerometer, the correction factors are determined by the microcontroller for the measured accelerations and the measured output information is adjusted by the microcontroller by multiplying it by the corresponding correction factors.

EFFECT: ensuring the linearity of the scale coefficient of the wide-range pendulum accelerometer of the compensatory type.

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