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3-Axis Fiber Optic Gyroscope

Product Guide

3-axis fiber optic gyroscope (GXT-3, TGX-180SZ) is widely used for military purposes in navigation, north-seeking and attitude control systems. It is also applicable to civil aviation, oil exploration, high-speed rail and other fields. Notable features include low power consumption, small size, light weight, low cost, as well as high levels of reliability, detection sensitivity and resolution, etc.

Product Overview

Triple-Axis Gyroscope (GXT-3, TGX-180SZ)

Components:
The three-axis gyroscope consists of fiber optic ring module, optical system module, information processing module, electrical connector, etc.

Function:
It can measure the angular velocity of the carrier in the direction of X, Y and Z axles.

Basic Principle:
The fiber optic gyro is developed on the basis of the Sagnac effect. A beam of light is split and the two beams are made to follow the same path but in opposite directions. On return to the point of entry the two light beams are allowed to exit the ring and undergo interference. The relative phases of the two exiting beams, and thus the position of the interference fringes, are shifted according to the angular velocity of the apparatus.

A superluminescent diode (SLD) source produces light that is fed into one port of a coupler. Of the two outputs of the coupler, one provides the light to a Y branch waveguide. Upon the exit from the Y branch, each beam passes through a phase modulator that is necessary to create a nonreciprocal phase modulation. After the modulators, the two beams counter propagate through a fiber optic coil. The optical beams are then fed back through the Y branch and coupler and interfered on a detector. After the beam that has been interfered passes through the coupler, the optical signal will be converted into an electrical signal by the PIN detector. The signal is proportional to the angular velocity of the carrier, and the angular velocity signal of the carrier is calculated by the detection of the electric circuit. After the modulation of light by the Y waveguide modulator, the optical power that is received by the PIN detector will transform from cosine signal to sinusoidal signal with the changes in Sagnac phase difference. Consequently, the largest sensitivity is found near the zero input. The direction of the angular velocity can be input respectively.

Product Information

GXT-3 Triple-Axis Fiber Optic Gyroscope

1. Function: Sense the angular velocity signals in the direction of X, Y and Z axles.
2. Structural Material: Outer shell, top cover, side cover and electrical connector. High-hardness and lightweight aviation grade duralumin structure
3. Warranty Period: 3 years
4. Working Conditions:
⑴ Ambient Temperature: -40℃~+60℃
⑵ Relative Humidity: at most 80%
⑶ Installation: horizontal
5. Technical Specifications:
⑴ Power Supply: DC+5±0.2V
⑵ Operating Current: ≤300mA
⑶ Starting Time: ≤3s
⑷ Dynamic Range: ≥200°/s
⑸ Zero-Bias Stability: ≤0.01°/s
⑹ Zero Bias: ≤0.03°/s
⑺ Scale Factor Nonlinearity: ≤0.5%
⑻ Scale Factor Repeatability: ≤0.03°/s
6. Overall Dimension: 55mm×55mm×55mm
7. Weight: ≤320g
8. Accessories: Unavailable

TGX-180SZ Triple-Axis Fiber Optic Gyroscope

1. Function: Measure the angular velocity of the carrier in the direction of X, Y and Z axles.
2. Structural Material: Top cover and outer shell. High-hardness and lightweight aviation duralumin structure
3. Warranty Period: 3 years
4. Working Conditions:
⑴ Ambient Temperature: -55℃~+70℃
⑵ Relative Humidity: at most 80%
⑶ Installation: horizontal
5. Technical Specifications:
⑴ Power Supply: DC±27V
⑵ Operating Current: starting current≤7A, steady-state current 1.6±0.4A
⑶ Dynamic Range: ≥600°/s
⑷ Zero-Bias Stability: ≤1.5°/h
⑸ Zero-Bias Repeatability: ≤4°/h
⑹ Scale Factor: 3.30~3.35″/p
⑺ Scale Factor Error: ≤5×10-4
⑻ Random Walk Coefficient: ≤0.15°/
6. Overall Dimension: Φ180mm×140mm
7. Weight: ≤5kg
8. Accessories: Unavailable

Unique Selling Points

Fiber Optic Gyroscope (GXT-3, TGX-180SZ)
Used exclusively for navigation, north-seeking and attitude control systems in military industry
We are the sole company in China to develop and produce single-mode fiber gyroscopes by collaborating with Zhejiang University.
Low power consumption, small size, light weight, low cost, good detection sensitivity, high resolution, etc.
Good reliability with MTBF higher than 30000h
Solid-state inertial components with excellent mechanical adaptability
Extraordinary adaptability to variable temperatures
High-hardness, lightweight aviation grade duralumin structure
Stable performance
High performance/cost ratio
With an annual production capacity of 1500 pieces, we can fully meet your batch buying requirements. This also brings a guarantee on reducing the transportation costs significantly.
Other products are available as per customer requirements.

Frequently Asked Questions

1) Question: Production lead time?
Answer: 4 months.

2) Question: Product quality and warranty?
Answer: Products are produced in line with our in-house technical specifications. Our fiber optic gyros are inspected according to the national military standard 2426A-2004. When the quality problem occurs in the warranty period, our customer has the right to request for return of goods. Loss will be borne by our company, as long as we confirm the documentary evidence which has been offered by our customer. The repair charge shall be needed if the equipment is returned to our factory outside the warranty period.

3) Question: Product packaging materials?
Answer: Cardboards and foam fillers.

4) Question: Advantages of your instruments over other competitors?
Answer: Small size, light weight, low cost, high reliability, great detection sensitivity, high resolution, superior service, fast response, etc.

5) Question: Which test method does your company adopt before the use of fiber optic gyroscopes?
Answer: Our fiber optic gyros are tested according to the national military standard 2426A-2004.

6) Question: Major uses of your fiber optic gyroscopes?
Answer: These gyros are suitable for military uses in navigation, north-seeking and attitude control systems. They can also be used for civil aviation, oil exploration, high-speed rail and other civil applications. These products can measure the angular rate of the carrier. They can also detect the angular velocity signals and overload signals.

Product Dimension Drawings and User Instructions (PDF Version)

  • GXT-3 Triple-Axis Fiber Optic Gyroscope Dimension Drawing
  • TGX-180SZ Triple-Axis Fiber Optic Gyroscope Dimension Drawing

Custom user guide is available upon request.

Product Catalogue

No. Product Name Product Model
1. Fiber Optic Gyroscope of Three-Axis GXT-3
2. Fiber Optic Gyroscope of Three-Axis TGX-180S
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