Micro-Magic Releases U4930 High-Performance IMU Module with Full HG4930 Compatibility

Recently, MEMS technology supplier Micro-Magic Inc. launched its U4930 series high-precision MEMS inertial measurement module (IMU). This product quickly attracted the attention of integrators in the fields of industrial drones, high-precision navigation, autonomous driving, and mobile surveying, thanks to its excellent core performance, robust and compact design, and a key market positioning to become a compatible and upgrade option for Honeywell's classic HG4930 IMU.

The design philosophy of U4930 is very clear: to provide more competitive performance while maintaining a physical form and electrical interface similar to the widely used HG4930 in the industry. Its external dimensions are 64.8 × 47 × 35.3 millimeters, with a weight of approximately 130 grams and a steady-state power consumption of less than 2 watts. These features enable it to seamlessly adapt to the system space and power architecture originally designed for HG4930, greatly reducing the mechanical and electrical design costs for users when replacing or upgrading products.

At the performance level, U4930 has demonstrated comprehensive improvements. It integrates high-performance three-axis MEMS gyroscopes and accelerometers, and achieves precise compensation in the entire temperature range through internal algorithms. The measurement range of its gyroscope can reach up to ±500°/s, which is better than the ±400°/s of HG4930; the range of its accelerometer reaches ±30g. More importantly, its precision specifications — featuring gyro bias stability of 0.3°/h (10-second smoothing) and angular random walk as low as 0.02°/√h — enable it to meet the demands of highly stringent attitude measurement applications. At the same time, the module supports a data output rate of up to 2000Hz and is equipped with anti-vibration and anti-impact design, ensuring reliability and real-time data in high dynamic and harsh environments.

U4930 adopts RS422 differential communication interface and supports custom communication protocol configured through host computer software, including synchronization support for GPS/GNSS time data and Pulse Per Second (PPS) signals, which makes it consistent with HG4930 in system integration logic. Users' existing data processing and navigation algorithms can smoothly transition. Micro-Magic explicitly stated in the information that the product is designed to be "compatible with HG4930", providing a practical and feasible technical path for existing HG4930 users seeking supply chain diversification, cost optimization, or performance improvement.

The U4930 series offers three different precision levels of models, A, B, and C, covering different needs from cutting-edge scientific research to industrial applications. Its emergence marks the ability to directly benchmark with international mainstream products in the key field of high-precision MEMS inertial measurement, and through precise compatibility design, it brings users more flexible and valuable solution choices.

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