Method for determining starting time of fiber-optic gyroscope

A fiber optic gyroscope and start-up time technology, applied in measurement devices, instruments, etc., can solve the problem of disconnection between the start-up time evaluation system of the fiber optic gyroscope and the actual application, and achieve the effect of low test conditions, filling gaps, and clear steps.

Inactive Publication Date: 2013-01-09
ZHEJIANG UNIV
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  • Abstract
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Problems solved by technology

[0004] In order to solve the problem that the evaluation system of the start-up time of the fiber optic gyroscope is seriously disconnected from the actual application, the present invention proposes a new definition and evaluation method of start-up time

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Embodiment Construction

[0033] For the static test of the fiber optic gyroscope, due to the external temperature change, the internal optical characteristics of the gyroscope and the crosstalk of the circuit components and other factors during the power-on process, the measured data obviously deviates from the real data for a period of time, which is called the start-up process. The length of time is called the startup time. This start-up time is an unreal response to the output data of the gyro. The existence of this start-up process in the static test will affect the final test effect. In order to find out the length of this start-up time more accurately, avoid this start-up time. The impact of the process on the entire test process, the formulation of the determination method of the fiber optic gyroscope startup time is necessary.

[0034] To determine the startup time of the fiber optic gyroscope, firstly, the output data of the fiber optic gyroscope in a static state is obtained. The input axis...

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Abstract

The invention discloses a method for determining starting time of a fiber-optic gyroscope. The fiber-optic gyroscope is mounted on a fixing base and is kept static, output data of the fiber-optic gyroscope from starting to stably working for a period of time are acquired, and the starting time of the fiber-optic gyroscope can be accurately determined by processing the data. The method is simple to operate and easy to implement, novel criteria for determining the starting time of the fiber-optic gyroscope are provided, and the blank of the existing evaluating technology is filled up.

Description

technical field [0001] The invention relates to inertial navigation and related fields, in particular to a method for judging the starting time of an optical fiber gyroscope. Background technique [0002] With the development of fiber optic gyroscope engineering technology, the application of fiber optic gyroscope will become more and more extensive, its production scale will also expand year by year, and the demand for fiber optic gyroscope evaluation methods will also increase day by day. But like any other engineering research, evaluation technology is an important and most easily overlooked link. The significance of evaluation technology lies in its guidance for product development and application. On the one hand, the evaluation system is the simplest application system. On the other hand, the evaluation standard is the goal of product development. Therefore, in the research system of fiber optic gyroscope engineering, the research on fiber optic gyroscope evaluation t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
Inventor 沈亦翀周一览杨建华刘承
Owner ZHEJIANG UNIV
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