RS422 Close Loop Gyro Single Axis Angular Rate Sensor Good Repeatability Fiber Gyro

Performance index:

1 Scale factor

Non-linearity of scale factor at room temperature: < 100 ppm

Normal temperature scale factor repeatability: < 100 ppm (1σ).

2 Zero-bias stability

Zero-bias stability at room temperature:

F50A: < 0.1 °/H (1σ) 10s smooth 1H test result

F50 B: < 0.2 °/H (1σ) 10s smooth 1H test result

3 Zero-bias repeatability

Normal-temperature zero-bias repeatability:

F50A: < 0.2 °/H (1σ) 6 test data calculation

F50 B: < 0.3 °/H (1σ) 6 test data calculation

Full temperature operating range:

F50A: < 0.5 °/H (full temperature extreme difference)

F50 B: < 0.6 °/H (full temperature limit difference)

4 Random walk

Less than 0.02 °/

5 Bandwidth

Greater than 200Hz

6 Initialization time

Less than 5S

7 Dynamic Range

±300°/s

Electrical interface:

1 Gyro socket model

Model of external interface socket of gyroscope: J30-15ZK, connecting line: 0.12 mm AFR line, line length: 250 mm.

2 Wiring definition table

Power requirements:

+ 5V A: + 5V ± 5%, 0.4A (transient peak about 1.5A), ripple less than 50mV

-5V A: -5V ± 5%, 100mA, ripple less than 50mV

VCC: + 5V ± 10% or + 3.3 V ± 10%,

Note: GND and AGND shall not be connected to the gyro housing.

Environmental adaptability:

3.1 Operating temperature

-45℃～+60℃

3.2 Storage temperature

-55℃～+75℃.

Impact

100g (11 ms), 3 times in a row, in three directions. Mean change of zero deviation before and after impact ≤ 0.5 °/H.

Vibration

(A) Randomly swept spectral lines:

20~80Hz :3dB/oct

80~350 Hz :0.04/Hz

350~2000Hz :-3dB/oct

(B) 3 minutes for each of the three directions, the gyroscope is in the working state during the vibration test, and the mean change of zero deviation before, during and after the vibration is ≤ 0.5 °/H.

Communication

When the standard RS-422 serial communication interface is used, the protocol can be adjusted as required.

Hardware interface: the baud rate is 614.4kbps. The communication format is 11 bits of data per frame, including 1start bit, 8 data bits, 1 even parity bit and 1stop bit. The data update period is 0.5ms.

Software communication protocol:

Gyro valid data is 32 bits (32-bit signed integer). The data packet transmits 7 bytes of data in total: the first byte is the frame header 80H; Bytes 2 to 6 are gyro data; The 7th byte is a check bit (the check bit is an exclusive or value of the data of the 2nd to 6th bytes).

Data format:

The first byte (frame header) is 80H:

The second byte is gyro data D6 ~ D0:

The third byte is gyro data D13 to D7:

The fourth byte is gyro data D20 ~ D14:

The 5th byte is gyro data D27 ~ D21:

The 6th byte is gyro data D31 ~ D28:

The 7th byte (check bit) is the exclusive or (XOR) of the 2nd to 6th bytes of data.

Dimension

F50B-ENG(1).pdf

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  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 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.