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GB/T 45570-2025General technology requirements for optical gyroscope (English PDF)

光学陀螺仪通用技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 25, 2025

Implementation date

August 1, 2025

Scope

GB/T 45570-2025 is the English-translated version of 光学陀螺仪通用技术要求.

GB/T 45570-2025 is the Chinese national standard covering the gyroscope that measures rotation from the Sagnac effect rather than from a spinning mass — the split between ring laser and fibre optic types, the performance parameters and the test methods for them, and the environmental requirements from damp heat and salt spray to low pressure, total ionizing dose and thermal vacuum, because an instrument for aerospace, aviation and shipbuilding has to hold its bias through all of it. The typical performance figures for laser and fibre optic products, and the environmental adaptability figures, are given in informative appendices. First edition, in force from 1 August 2025. Issued on 25 April 2025, it has been in force since 1 August 2025.

Document preview — GB/T 45570-2025

National Standard of the People's Republic of China

ICS: 49.045
Classification: V 25

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Product Categories3
5 Technical Requirements3
6 Test methods6
7 Marking, packaging, storage and transportation10
Appendix A (Informative) Main performance indicators of typical laser gyroscope products11
Appendix B (Informative) Main performance indicators of typical fiber optic gyroscope products12
Appendix C (Informative) Main environmental adaptability indicators of typical optical gyroscope products13
Appendix D (Normative) Test methods for common performance parameters of gyroscopes14

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed and coordinated by the National Technical Committee for Standardization of Aerospace Technology and Its Applications (SAC/TC425).

This document was drafted by: Xi'an Flight Automatic Control Research Institute of China Aviation Industry Corporation, Beijing Aerospace Control Instrument Research Institute, National University of Defense Technology, Beijing Institute of Automation and Control Equipment, Beijing University of Aeronautics and Astronautics, China Ordnance Industry No. 203 Research Institute, Zhejiang University China Shipbuilding Industry Corporation No. 717 Research Institute, AVIC Jierui (Xi'an) Optoelectronics Technology Co., Ltd., Beijing Aerospace Times Optoelectronics Technology Co., Ltd.

Technology Co., Ltd., Beijing Aerospace Times Laser Navigation Technology Co., Ltd., Hunan 208 Advanced Technology Co., Ltd., Shanghai Aoshi Control Technology Co., Ltd., Jiangxi Chiyu Optoelectronics Technology Development Co., Ltd., and Zhejiang Aerospace Runbo Measurement and Control Technology Co., Ltd.

The main drafters of this document are: Xie Liangping, Chen Linfeng, Ma Haiquan, Zhao Xiaoning, Sha Li, Hu Shaomin, Han Chuankun, Wang Shilin, Lei Jianjun, Han Zonghu, Yang Hongyou, Wang Ke, Wan Xun, Feng Chi, Xu Xiaobin, Wang Xiaozhang, Hu Huizhu, Che Chicheng, Gu Lin, Tian Zhen, Zhang Wei, Zhou Jingshu, Li Chao, Xu Peng, Xiao Yinjing, Zhang Lizhe, Gao Yonghong, Xu Meng, Wei Tianxiao, Liu Xing, Zhang Junjun, Lu Guangfeng, Han Junhai, Huang Yun, Cheng Wenming.

General technical requirements for optical gyroscopes

1 Scope

This document specifies the product classification, technical requirements, marking, packaging, storage and transportation requirements of optical gyroscopes. Appropriate test method.

This document applies to optical gyroscopes (referred to as gyroscopes) used in aerospace (including commercial aerospace), aviation, and shipbuilding.

The field shall be implemented by reference.

2 Normative references

GB/T 191

GB/T 321

GB/T 2423.1

GB/T 2423.2

GB/T 2423.3

GB/T 2423.15

GB/T 2423.16

GB/T 2423.17

GB/T 2423.21

GB/T 2423.22

GB/T 4937.18

GB/T 34522

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Sagnac effect

The effect of optical path difference between two coherent light waves propagating in opposite directions along a closed optical path due to the rotation of the optical path.

3.2 Optical gyroscope

A gyroscope that works using the Sagnac effect of light.

3.3 Laser gyroscope

A method for measuring angular velocity or angle relative to inertial space based on the Sagnac effect and composed of a ring laser resonator. device.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 35 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 321 · GB/T 2423.1 · GB/T 2423.2 · GB/T 2423.3 · GB/T 2423.15 · GB/T 2423.16 · GB/T 2423.21 · GB/T 4937.18

Editions of GB/T 45570

Edition	Title	Revision	Status
GB/T 45570-2025	General technology requirements for optical gyroscope	current edition	Current

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