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Three Axes Optic Gyro Low Bias Fiber Gyro Inertial Sensor Low Cost Factory Supply

Three Axes Optic Gyro Low Bias Fiber Gyro Inertial Sensor Low Cost Factory Supply
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Measuring Range: ±300º/s
Zero Bias Stability At Room Temperature (100s Smoothing, 1σ): ≤0.01º/h
Zero-bias Repeatability: ≤0.1º/h
Random Walk Coefficient: ≤0.001º/h1/2
Scale Factor Repeatability: ≤100ppm
Operating Temperature: -40~+60℃
Supply Voltage: +5V
Bandwidth: >200Hz
Steady-state Power Consumption: ≤7w
Start Time: 1 Min
High Light:

Low Bias Fiber Gyro


Three Axes Optic Gyro


Three Axes Fiber Gyro

Basic Infomation
Place of Origin: China
Brand Name: AVIC
Certification: Military standard
Model Number: 30G
Payment & Shipping Terms
Packaging Details: sponge+ box
Delivery Time: 20 days for sample
Payment Terms: T/T
Supply Ability: 50/month
Product Description

Optic Gyro Three Axes Low Bias Fiber Gyro Inertial Sensor Low Cost Factory Supply


Performance Characteristics


Serial number Test item Unit Technical requirements
1 Measuring range º/s ±300

Zero bias stability at room temperature

(100s smoothing, 1σ)

º/h ≤0.01
3 Zero-bias repeatability º/h ≤0.01
4 Random walk coefficient º/h1/2 ≤0.001
5 Scale factor repeatability ppm ≤100
6 Operating temperature -40~+60
7 Storage temperature -50~+70
8 Supply voltage V +5V
9 Bandwidth Hz >200
10 Steady-state power consumption W ≤7
11 Start time min 1
12 Startup instantaneous power consumption W

≤ 10 (within 3s after power on)





This product is an inertial angular rate sensor based on the optical Sagnac effect, which is used to measure the angular rate of the carrier along the sensitive axis of the product. An angular rate sensing unit of the product is an optical fiber ring, a digital closed loop detection circuit is adopted to extract the optical path difference of clockwise and counterclockwise propagation light caused by external physical angular rate and sensed by the optical fiber ring, and meanwhile, a voltage signal converted from an optical path difference signal is subjected to closed loop feedback and control, so that the modulation and demodulation of the signal are realized, and the purpose of high-precision angular rate signal detection is achieved.


This product consists of an optical angular velocity sensing unit and a signal detection unit, and provides information of three-axis angular increment and internal temperature.

The products are mainly suitable for high-precision inertial navigation systems, positioning and orientation systems and other applications.


The main components of the product are as follows:

  1. The optical path unit comprise an erbium fiber light source, an optical fib ring, an integrated optical phase modulator, an optical fiber coupler and a photodetector;
  2. The circuit unit comprises a light source driving circuit and a detection and control signal circuit board;
  3. Gyroscope structural parts.




Three Axes Optic Gyro Low Bias Fiber Gyro Inertial Sensor Low Cost Factory Supply 0



Overall dimension of circuit box (mm): (96 ± 0.1) × (96 ± 0.1) × (32.9 ± 0.1) (L × W × H);

Dimension of optical fiber sensing unit (mm): Ф92 × 27;

Installation dimension of circuit box (mm): (88 ± 0.1) × (84 ± 0.1) (L × W), Φ4mm × 4;

Installation dimension of optical fiber sensing unit:

Such asFig. 2 Schematic diagram of installation of sensing unitAs shown.


Pin definition

Point number



1,9 +5V Power supply input
2,10 GND Power ground
8 SEL+ Gyroscope gating power supply, connected to high level + 5V
15 SEL- Gyro gating signal
6 TXD+ Gyro differential output positive
14 TXD+ Gyro differential output negative
3,4,5,7,11,12,13 —— Reserved
Gyro gating power is externally connected with + 5V, and the gating signal is TTL level.


30G three axes fiber gyro triaxial gyro 3 axes opt...

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