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Method for comprehensive calibration of static and dynamic parameters of missile strapdown triaxial accelerometer assembly

A technology of accelerometer and shaft acceleration, which is applied in speed/acceleration/shock measurement, testing/calibration of speed/acceleration/shock measurement equipment, and measurement devices, etc. It can solve the problems that the measurement accuracy cannot be effectively guaranteed

Inactive Publication Date: 2014-03-26
ZHONGBEI UNIV
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Problems solved by technology

[0003] In order to solve the problem that the existing calibration method of strapdown three-axis accelerometer combination for elastic use cannot effectively guarantee the measurement accuracy, the present invention provides a comprehensive calibration method for static and dynamic parameters of strapdown three-axis accelerometer combination for elastic use

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  • Method for comprehensive calibration of static and dynamic parameters of missile strapdown triaxial accelerometer assembly
  • Method for comprehensive calibration of static and dynamic parameters of missile strapdown triaxial accelerometer assembly
  • Method for comprehensive calibration of static and dynamic parameters of missile strapdown triaxial accelerometer assembly

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Embodiment Construction

[0049] A comprehensive calibration method for static and dynamic parameters of a strapdown three-axis accelerometer for missiles. The method is implemented by adopting the following steps:

[0050] 1) X-axis accelerometer, Y-axis accelerometer, and Z-axis accelerometer are used to form a strapdown three-axis accelerometer combination for bomb use, and the strapdown three-axis accelerometer combination for bomb use is installed on a high-precision three-axis position rate turntable ;

[0051] The sensitive direction of the X-axis accelerometer, the sensitive direction of the Y-axis accelerometer, and the sensitive direction of the Z-axis accelerometer together constitute a non-orthogonal coordinate system. Set the non-orthogonal coordinate system as a system; the installation axis of the X-axis accelerometer The installation axial direction of the Y-axis accelerometer and the installation axial direction of the Z-axis accelerometer together constitute the orthogonal carrier coordina...

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Abstract

The invention relates to a calibration technology of a missile strapdown triaxial accelerometer assembly, in particular to a method for comprehensive calibration of static and dynamic parameters of the missile strapdown triaxial accelerometer assembly. The method solves the problem that an existing calibration method of a missile strapdown triaxial accelerometer assembly cannot effectively ensure measurement accuracy. The method for comprehensive calibration of the static and dynamic parameters of the missile strapdown triaxial accelerometer assembly comprises the following steps that (1) the missile strapdown triaxial accelerometer assembly is installed on a high-precision triaxial position rate rotary table; (2) an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer are arranged at the position with + / -1g; (3) the value of the output voltage collected in the step (2) is substituted into a static parameter calibration model; (4) the high-precision triaxial position rate rotary table works at a constant angular speed; (5) the value of the output acceleration collected in the step (4) is substituted into a dynamic parameter calibration model. The method for comprehensive calibration of the static and dynamic parameters of the missile strapdown triaxial accelerometer assembly is applicable to calibration of the missile strapdown triaxial accelerometer assembly.

Description

Technical field [0001] The invention relates to a calibration technology of a strapdown three-axis accelerometer combination for missiles, in particular to a method for comprehensively calibrating static and dynamic parameters of a strapdown three-axis accelerometer combination for missiles. Background technique [0002] The strapdown three-axis accelerometer combination for ammunition is widely used in conventional ammunition, aviation, aerospace and other fields because of its simple structure, small size, convenient maintenance, and strong autonomy. The measurement accuracy of the strapdown three-axis accelerometer combination for missiles directly affects the total hit rate of inertial navigation or inertial guided weapons, and the measurement accuracy of the strapdown three-axis accelerometer combination for missiles mainly depends on whether it can be performed before use. Accurate calibration. Under the existing technical conditions, the calibration method of the strap-do...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00
Inventor 李杰张樨刘俊范成叶张晓明秦丽石云波郭涛唐军鲍爱达马喜宏杨卫景增增张松范建英
Owner ZHONGBEI UNIV
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