Fiber-optic gyroscope light source reliability detecting method based on Bayesian theory
A Bayesian theory, fiber optic gyroscope technology, applied in optical instrument testing, machine/structural component testing, measuring devices, etc., can solve the problems of long detection time, waste of resources, low accuracy and so on
Inactive Publication Date: 2015-02-18
HARBIN ENG UNIV
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[0005] The present invention aims to solve the problems of long detection time, low accuracy and waste of resources in the detection method of the reliability of the optical fiber gyroscope light source, and provides a reliability detection method of the optical fiber gyroscope light source based on Bayesian theory
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specific Embodiment approach 1
[0071] Specific embodiment one: the method for detecting the reliability of the optical fiber gyroscope light source based on Bayesian theory in this embodiment is implemented in the following steps:
[0072] Step 1. Analyze the structure and principle of the erbium-doped fiber optic light source for the fiber optic gyroscope;
[0073] Step 2, adopting Weibull distribution as the failure mode of the erbium-doped fiber light source for analysis;
[0074] Step 3, using the Bayesian method to estimate the failure rate of the erbium-doped optical fiber light source;
[0075] The specific method for estimating the failure rate of the erbium-doped fiber optic light source by the Bayesian method is as follows:
[0076] The density function form of the Bayes formula is:
[0077] h ( θ | x 1 , . . . , x ...
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The invention relates to a fiber-optic gyroscope light source reliability detecting method based on Bayesian theory and aims to solve the problem that the existing fiber-optic gyroscope light source reliability detecting methods are long in detecting time and low in accuracy, and wastes resources. The method includes the steps of firstly, using an Er-doped fiber-optic light source to analyze structure and principle of a fiber-optic gyroscope, and determine work principle of each component; secondly, using the fiber-optic gyroscope to perform failure model effectiveness analysis to the fiber-optic gyroscope to obtain a reliability model of the Er-doped fiber-optic light source; thirdly, using the Bayesian theory to estimate failure rate of the Er-doped fiber-optic light source; fourthly, using the reliability model of the Er-doped fiber-optic light source for estimating to obtain reliability indexes; and fifthly, using formula (15), (16) and (17) as parameters for judging whether the Er-doped fiber-optic light source fails or not. The fiber-optic gyroscope light source reliability detecting method is applicable to the field of reliability detecting.
Description
technical field [0001] The invention relates to a method for detecting the reliability of a fiber optic gyroscope light source. Background technique [0002] With the rapid improvement of the reliability level of modern equipment, the proportion of long-life and high-reliability products is increasing, and the problem of how to verify the life and reliability indicators of such products is becoming more and more prominent. Inertial technology is the core technology to realize navigation, guidance, positioning and orientation, rapid response, precise strike and information processing of various weapons and equipment. Therefore, it is an important research topic to conduct reliability research on inertial products. [0003] Fiber optic gyroscope (FOG) is an angular velocity sensor based on the optical Sagnac effect. In recent years, the fiber optic gyroscope has gradually replaced the traditional mechanical gyroscope with its advantages of all solid state, no need for rotati...
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IPC IPC(8): G01M11/00
Inventor 黄平高伟吴磊王伟奔粤阳吴振国于强周广涛徐博薛冰
Owner HARBIN ENG UNIV