Low Bias Low Cost 3 Axis Inertial Optical Fiber Gyro Sensor For Navigation

Low Bias Low Cost 3-Axis Inertial Optical Fiber Gyro Sensor for Navigation

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.

Performance Characteristics

Pin definition

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.

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

Shenzhen Fire Power Control Technology Co., Ltd. is a professional manufacturer specializing in the production of  electronic products and inertial devices, and providing technical consultation and export services. The company has a strong independent  team. The technical team is composed of many outstanding experts with more than 50 years of comprehensive industry  experience. The company has strong technical strength in the fields of vibration acceleration sensors, MEMS gyro, IMU, INS, angle testing equipment and other products, and is able to provide users with professional design, development, production and services of inertial devices and related simulation software.

Technical Advantages

Firepower technology fully possesses independent design capabilities in vibration acceleration sensors, MEMS gyro, IMU, INS, angle testing equipment and other products.. We have accumulated over ten years of research and development experience in the fields of optical sensing, MEMS sensing, with strong technical strength. We have mastered multiple core technologies including MEMS gyroscope and acceleration chip design, multi-core fusion technology, silicon optical chip technology, optical sensing. With the accumulation of technology, we have the ability to scale up industries and are in a leading position worldwide. Not only can we provide customers with high-performance products, but we can also significantly reduce production costs.

Production Capacity

Firepower has four subsidiaries with production line respectively, which are MEMS inertial product production line, micro-nano integrated inertial production line,vibration acceleration sensor production line and angle test equipment production line. A total investment of 15, 000 square meters has been built for scientific research and production, including 650 square meters 10, 000-class clean rooms that meet national standards, electrical-mounting production lines and environmental testing centers.

With more than ten years development, Firepower has become a high-tech enterprise with high level of craftsmanship and comprehensive products range in China. We have complete production line from chips to finished products after all testing, providing first level products among peers in domestic and over-sea market.

Production Environment

We have built clean rooms, electrical assembly production line, and environmental testing center that comply with the national "Clean Building Design Specification". It has complete precision measuring instruments and testing equipment, angle testing systems, high and  low temperature test chambers, vibration and shock test benches, precision optical indexing heads, functional centrifuges, mechanical testing rooms ,anechoic chambers, multi axis angle test equipment and other instruments and testing equipment to ensure product quality.