Method for standardization of optimum 8 positions of flexure gyroscope

Abstract

The invention discloses an optimum eight-place standardization method of a flexible gyroscope, the flexible gyroscope is arranged on a three-shaft place rate rotary table, wherein, the flexible gyroscope is connected with data collecting equipment which is communicated with a computer. The invention discloses a specific position in the optimum eight-place standardization, and the output of the flexible gyroscope is effectively improved in the way that the invention compensates a measurement value of a compensation model G0 of obtained optimum eight-place drifting coefficients and vibrating reed gyro quiet errors. In a testing process of the vibrating reed gyro in an inertial navigation testing center, a traditional eight-place method and the optimum eight-place method are respectively adopted to obtain the drifting coefficients which respectively and objectively output compensated evaluation results of another three-place top in space. By residual sum of square of a top measurement value, compared with the traditional eight-place method, the results of compensated drifting coefficients solved by the optimum eight-place experiment design method of the flexible gyroscope are increased by 4 to 8 times.

Description

technical field [0001] The invention relates to a method for calibrating the optimal eight-position position of a flexible gyroscope. Precisely defining the test position of the flexible gyroscope is an important experimental process in the field of flexible gyroscope testing and modeling, and is an important means to further improve the measurement accuracy of the flexible gyroscope. Background technique [0002] The flexible gyroscope is a dual-degree-of-freedom gyroscope, which is widely used in various navigation, guidance and control systems because of its advantages in accuracy, volume, cost and reliability. However, in practical applications, there are drift errors caused by various disturbance torques in the angular velocity measurement value of the flexible gyroscope. These drift errors are generally composed of static drift errors, dynamic drift errors and random drift errors. The static drift error is the main part of the drift error of the flexible gyroscope, an...

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Problems solved by technology

However, the above two methods have the following problems: ①. The traditional eight-position test method cannot accurately obtain the first-order drift coefficient in the static error model of the flexible gyroscope, so that the gyroscope after compensation for the static error of the flexible gyroscope with the estimated drift coefficient The measurement accuracy has not been significantly improved; ②, compared with the traditional eight-position test method, the first-order drift coefficient in the static error model of the flexible gyro estimated by the 24-position test method has been improved, but the estimation result is not optimal One-time item drift coefficient, and the calculation time in the test process is long, the calculation workload is large, and the test cost is high

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