DMC620 Small-Size High-Precision Attitude and Heading Reference System

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Product Description

The DMC620-USB is a high-precision attitude sensor designed for omnidirectional intelligent robots. It incorporates BWSENSING’s proprietary fast calibration and anti-interference algorithms, and undergoes aerospace-grade turntable calibration prior to delivery. It intelligently eliminates installation-induced cross-axis errors and supports on-site periodic self-calibration without the need for return to the factory, ensuring stable and accurate attitude data in harsh environments. Equipped with IAP firmware update capability, it allows for in-service software upgrades. When strong magnetic interference occurs (such as from high-torque motor output), the system automatically reduces the weighting of the magnetometer in data fusion, increases the contribution of the gyroscope and accelerometer, or switches to six-axis mode. It resumes full fusion once the interference subsides, making it an ideal solution for omnidirectional robots.

Product Specifications

●Nine-axis AHRS sensor intelligent fusion algorithm ●Maximum heading accuracy ≤0.05°/cycle, pitch and roll accuracy ≤0.05° ●AEC-Q100 certification and manufacturing process ●Accuracy is CNAS traceable ● Wide temperature range: -40°C to +85°C ●Dimensions: L24.05 × W22.4 × H9.41 (mm) ●ISO 26262 automotive-grade functional safety certification ●1000 Hz raw data output frequency

Company Profile

Wuxi Beiwei Sensing Technology Co., Ltd.

Beiwei Sensing is a national high-tech enterprise funded by the China Electronics Haikang Group. In 2025, it was awarded the national “Specialised, Refined, Unique and Innovative” (SRUI) ‘Little Giant’ title, has twice won the Gold Award at the World Internet of Things Expo, is a drafter of numerous national standards, and holds over 100 relevant intellectual property rights. Headquartered in Binhu District, Wuxi, the company has branches in Beijing, Chengdu, Hangzhou and other locations. It is also recognised as a Jiangsu Provincial Specialised, Refined, Distinctive and Innovative Enterprise and operates a postdoctoral workstation, utilising multiple platforms to deepen its expertise in the field of inertial sensing. With a vision to lead the global inertial sensor market, the company specialises in the R&D and production of MEMS and fibre-optic inertial sensor modules and core components. It meets diverse requirements for inertial attitude measurement and high-precision navigation and positioning, serving over 6,000 clients worldwide across sectors including smart equipment and autonomous driving. The company possesses strong R&D capabilities, with R&D and technical staff accounting for 48.1% of the workforce; over 36.1% of employees hold master’s or doctoral degrees. It has attracted numerous top-tier industry talents, undertaken several major national research projects, and established industry-academia-research collaborations with multiple universities. The company has also obtained multiple management system and product certifications. All product specifications have been tested by authoritative bodies, and we can provide CNAS-accredited accuracy traceability reports.
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