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1-Axis Fiber Optic Gyroscope

Product Guide

1-Axis Fiber Optic Gyroscope (TGX-2(F), TGX-50, TGX-70, TGX-75A) can be used extensively for navigation, north-seeking and attitude control systems in the military industry. It is also fit for commercial applications like civil aviation, oil exploration, high-speed rail, etc. Main characteristics encompass low power consumption, small size, light weight, low cost, plus the high levels of reliability, sensitivity and resolution, etc.

Product Overview

Single-Axis Fiber Optic Gyros (TGX-2(F), TGX-50, TGX-70, TGX-75A)

Components:
Components of the 1-axis fiber optic gyroscope include: fiber optic ring module, optical module, information processing unit, electrical connector, etc.

Function and Applications:
This product is intended to measure the angular velocity of the carrier. Typical applications are found in both defense and commercial uses, including navigation, north-seeking and attitude control systems, as well as civil aviation, oil exploration, high-speed rail and so forth.

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

TGX-2(F) Low Precision Fiber-Optic Gyroscope

1. Function: Sense and output the angular velocity signals of the carrier.
2. Structural Material: Top cover and outer shell. 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 Scale Factor Nonlinearity: ≤0.5%
⑺ Scale Factor Repeatability: ≤0.03°/s
6. Overall Dimension: 29mm×29mm×52.5mm
7. Weight: ≤45g
8. Accessories: Unavailable

TGX-50 Medium Precision Fiber-Optic Gyroscope

1. Function: Measure the angular rate of the carrier.
2. Structural Material: Top cover, framework, outer shell, bottom plate and electrical connector. High-hardness and lightweight aviation grade duralumin structure
3. Warranty Period: 3 years
4. Working Conditions:
⑴ Ambient Temperature : -45℃~+60℃
⑵ Relative Humidity: at most 95%
⑶ Installation: horizontal
5. Technical Specifications:
⑴ Power Supply: DC±(5.1~5.4)V
⑵ Operating Current: positive: <2A; negative: <1A
⑶ Starting Time: ≤5s
⑷ Dynamic Range: ≥400°/s
⑸ Zero-Bias Stability: ≤0.5°/h
⑹ Zero-Bias Repeatability: ≤0.5°/h
⑺ Scale Factor: (2.9±0.4)×107bit/°
⑻ Scale Factor Repeatability: ≤500ppm
⑼ Frequency Bandwidth: ≥200 Hz
⑽ Random Walk Coefficient: ≤0.05°/
6. Overall Dimension: 50mm×50mm×39mm
7. Weight: ≤150g
8. Accessories: Unavailable

TGX-70 Medium Precision Fiber-Optic Gyroscope

1. Function: Measure the angular velocity of the carrier.
2. Structural Material: Top cover, framework, outer shell, bottom plate and electrical connector. High-hardness, lightweight aviation grade duralumin structure
3. Warranty Period: 3 years
4. Working Conditions:
⑴ Ambient Temperature : -55℃~+70℃
⑵ Relative Humidity: at most 95%
⑶ Installation: horizontal
5. Technical Specifications:
⑴ Power Supply: DC±(5.1~5.4)V
⑵ Operating Current: positive: <2 A; negative: <1 A
⑶ Starting Time: ≤5s
⑷ Dynamic Range: ≥400°/s
⑸ Zero-Bias Stability: ≤0.3°/h
⑹ Zero-Bias Repeatability: ≤0.3°/h
⑺ Scale Factor: (4.4±0.6)×107bit/°
⑻ Scale Factor Repeatability: ≥100ppm
⑼ Frequency Bandwidth: ≥200 Hz
⑽ Random Walk Coefficient: ≤0.01°/
6. Overall Dimension: 70mm×70mm×32mm
7. Weight: ≤245g
8. Accessories: Unavailable

TGX-75A Fiber Optic Gyroscope

1. Function: Measure the angular velocity of the carrier.
2. Structural Material: Top cover, framework, outer shell, bottom plate and electrical connector. High-hardness, lightweight aviation grade duralumin structure
3. Warranty Period: 3 years
4. Working Conditions:
⑴ Ambient Temperature : -55℃~+70℃
⑵ Relative Humidity: at most 95%
⑶ Installation: horizontal
5. Technical Specifications:
⑴ Power Supply: DC±(5.1~5.4)V
⑵ Operating Current: positive: <2 A; negative: <1 A
⑶ Starting Time: ≤5s
⑷ Dynamic Range: ≥400°/s
⑸ Zero-Bias Stability: ≤0.1°/h
⑹ Zero-Bias Repeatability: ≤0.1°/h
⑺ Scale Factor: (4.4±0.6)×107bit/°
⑻ Scale Factor Repeatability: ≥50ppm
⑼ Frequency Bandwidth: ≥200 Hz
⑽ Random Walk Coefficient: ≤0.01°/
6. Overall Dimension: 75mm×75mm×36mm
7. Weight: ≤330g
8. Accessories: Unavailable

Unique Selling Points

Fiber Optic Gyros (TGX-2(F), TGX-50, TGX-70, TGX-75A)
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 optical gyros 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
Strong adaptability to temperatures ranging from -55℃ to +70℃
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 required 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 use for the fiber optic gyroscope?
Answer: Our fiber optic gyros are tested according to the national military standard 2426A-2004.

6) Question: Applications of the fiber optic gyroscopes that are offered by your company?
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 also detect the angular velocity signals and overload signals.

Product Dimension Drawings and User Instructions (PDF Version)

  • TGX-2(F) Low Precision Fiber-Optic Gyro Dimension Drawing
  • TGX-50 Medium Precision Fiber-Optic Gyro Dimension Drawing
  • TGX-70 Medium Precision Fiber-Optic Gyro Dimension Drawing
  • TGX-75A Medium Precision Fiber-Optic Gyro Dimension Drawing

TGX-2(F) Low Precision Fiber-Optic Gyro User Guide
1) Interface Definition

Type Pin No. Pin Name Remark
Power supply Input 1 DC +5 V Power supply+5 V
4 GND Power ground
Signal Output 2 Signal output- Gyro output analog signal voltage
3 Signal output+

2) Output Signal
Analog voltage signal

TGX-50, TGX-70, TGX-75A Medium Precision Fiber-Optic Gyro User Guide
Interface definition is as follows. The output method is customized to our users’ specific requirements.

1) Mechanical and Electrical Interface
The electrical connector works with JK30-15ZK jack. The definition of the jack function can be seen in Table 1.

Table 1: J30-15ZK Jack Function Definition

Jack No. Function Definition Jack No. Function Definition
1, 9 Gyro signal transmission TXD+ 6, 7 Power ground GND
2, 10 Gyro signal transmission TXD- 8, 15 Negative power supply
3 Gyro signal reception RXD- 11 Option 1
4 Gyro signal reception RXD+ 12 Option 2

2) Output Signal
RS422 digital signal output

Product Catalogue

No. Product Name Product Model
1. Fiber Optic Gyroscope TGX-2(F), TGX-50, TGX-70, TGX-75A
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