High Dynamic Range Fog Gyroscope Sensor with RS422 Digital Communication

High Dynamic Range Fog Gyroscope Sensor with RS422 Digital Communication​

PRODUCT DESCRIPTION

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. The angular rate sensing unit of the product is an optical fiber ring, and a digital closed-loop detection circuit is adopted to extract the optical path difference of clockwise and anticlockwise propagating light caused by the external physical angular rate, which is sensed by the optical fiber ring,At the same time, the voltage signal converted from the optical path difference signal is used for closed-loop feedback and control to realize the modulation and demodulation of the signal and achieve the purpose of angular velocity signal detection.

Composition

a) The optical path unit comprise an SLD light source, an optical fiber re, an integrated optical phase modulator, an optical fiber coupler and an optical detector;

b) The circuit unit comprises a light source driving circuit and a detection and control signal circuit board;

c) Gyroscope structural parts.

Product structure and features

The gyroscope structure adopts a typical optical fiber ring structure design scheme, and from the miniaturization integrated design, structural stability (resistance to shock and vibration), anti-resonance, structural symmetry, ease of installation and thermal design (temperature Characteristics) and other aspects were considered, and the existing structure of the gyro was optimized and designed.

Product Usage

The F60 fiber optic gyroscope has the characteristics of long life, strong shock and vibration resistance, large measurement range, high bandwidth, instant start, no drift caused by acceleration, and wide accuracy coverage. It can be widely used in ships, aircraft, and vehicles and Robot navigation, positioning and orientation, stability control and other fields.

Gyro working power supply

±5V power supply, power supply accuracy 5%, power supply ripple not more than 20mV. The maximum impulse current of the full temperature power supply is 1.5A. The steady-state power consumption at room temperature is not more than 2.5W, and the steady-state power consumption at full temperature is not more than 5W.

Main Parameters

Dimension

Main Application Fields

Shenzhen Fire Power Control Technology Co., Ltd. is a professional manufacturer specializing in the production of aerospace electronic products and inertial devices, and providing technical consultation and export services. The company has a strong independent R&D team. The technical team is composed of many outstanding experts with more than 50 years of comprehensive industry R&D experience. The company has strong technical strength in the fields of integrated photonics, fiber optic gyroscopes, inertial navigation, etc., 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 micro nano integrated fber optic gyroscopes, silicon optical chip integrated fiber optic gyroscopes and complete inertial navigation system technologies. We have accumulated over ten years of research and development experience in the fields of optical sensing, MEMS sensing, and inertial navigation, 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, and inertial navigation.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.

SILICON OPTICAL CHIP + OPTICAL FIBER SENSING UNIT

Production Capacity

Firepower has four subsidiaries with production line respectively, which are MEMS inertial product production line, fiber optic inertial production line, quartz accelerometer production line and motion simulation table 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.

Specially in 2019, we set up a micro-nano fiber optic gyroscope production line which is the only one in China, and it break through the technical bottleneck of the traditional closed-loop fiber optic gyroscope technology, bringing a new FOG of more precise, smaller and cheaper to the inertial navigation market.

The company has more than 100 patents and software copyrights, among which the core leading technologies are:

1) China′s only micro-nano fiber optic gyroscope production technology

2) Quartz flexible accelerometer pendulum design, etching, vacuum sputtering coating technology

3) Full-temperature high-precision MEMS inertial measurement and navigation technology;

4) Fiber optic gyroscope precision assembly and testing technology

5) Quartz flexible accelerometer range adjustment, scale factor, bias value, scale factor, temperature hysteresis, long-term repeatability measurement and modulation technology

6) Quartz accelerometer high temperature resistance (180° ) and high seismic design technology and process

7) Large dynamic three-axis turntable process design technology

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, simulation 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 turntables and other instruments and testing equipment to ensure product quality.