Method and system for judging start-up time of fiber optic gyroscope

A fiber optic gyroscope and start-up time technology, which is applied to measurement devices, instruments, etc., can solve the problems of inability to accurately evaluate the start-up time and the inconsistency of the start-up time of the fiber optic gyroscope with the actual application, so as to achieve clear test steps, accurate and reliable judgment results, Actionable effect

Active Publication Date: 2022-07-15
HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for judging the start-up time of the fiber optic gyroscope, so as to solve the problem that the start-up time of the fiber optic gyroscope in the traditional evaluation technology system of the fiber optic gyroscope does not match the actual application, and the problem that the start-up time cannot be accurately evaluated

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  • Method and system for judging start-up time of fiber optic gyroscope
  • Method and system for judging start-up time of fiber optic gyroscope

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[0032] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0033] The allowable offset change ΔB of the fiber optic gyroscope is determined according to the customer’s requirements for the zero offset stability or offset change index of the fiber optic gyroscope. In this embodiment, the allowable offset change ΔB of a certain type of fiber optic More than 0.02° / h is taken as an example to illustrate the determination method of the start-up time of the fiber optic gyroscope.

[0034] A method for determining the start-up tim...

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Abstract

The invention discloses a method and system for judging the start-up time of an optical fiber gyroscope, which adopts the tracking and judgment of the zero offset variation range during the working process of the optical fiber gyroscope to realize the judgment of the start-up time or the starting process of the fiber optic gyroscope. Clear and clear, strong operability, accurate and reliable judgment results.

Description

technical field [0001] The invention belongs to the technical field of optical fiber sensing, and in particular relates to a method and system for determining the startup time of an optical fiber gyro. Background technique [0002] Fiber optic gyroscope is an optical angular rate sensor based on the Sagnac effect. With the increasing requirements of modern weapons and inertial navigation for rapid sensor response, the rapid start of fiber optic gyroscope is particularly important. The start-up time of fiber optic gyroscope has become an item of fiber optic gyroscope. Important test parameters. [0003] In the current FOG evaluation technology system, the definition and evaluation criteria of the FOG start-up time are no longer applicable to the accurate evaluation of the existing FOG start-up time. In the "Fiber Optic Gyro Test Method (GJB2426A-2015)", the start-up time is defined as the time required for the fiber optic gyroscope to reach the specified performance from pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 于中权梁仁仁张学亮刘智荣张晓亮
Owner HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
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