High Precision 3 Axis Inertial Fiber Optic Gyro Sensor With Optical Modulator

High-Precision 3-Axis Inertial Fiber Optic Gyro Sensor with Optical Modulator

Dimensions

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.

Performance Characteristics

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.

Pin definition

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

Shenzhen Avionics Technology Co.,Ltd (AVIC) is a professional manufacturer of the aerospace electronic products and military-civilian integration products, also we provide technical consulting and export services, the company has four major production lines, namely: MEMS inertial product production line, fiber optic inertial product line, quartz accelerometer product line and simulation turntable product line. The establishment of the AVIC has realized the in-depth combination of military avionics products and civilian industries, and built a strategic platform for international marketing team, providing one-stop solutions for the products of Avionics.

The product range covers quartz flexible accelerometers, high-precision MEMS and optical fiber inertial measurement unit (IMU), inertial navigation systems, motion simulation test table with complete independent intellectual property rights, of which performance lead ahead comparing with domestical and international peers, also we provide customized products according to customer needs. The company's products are widely used in aviation, aerospace, ships, and weapons, oil exploration, high-speed rail, geophysical exploration, bridges, and dams, and won good reputation and credibility from customers.