Micro-Magic Inc has introduced its new U-Series of high-performance MEMS Inertial Measurement Units (IMUs) designed to address the accuracy and reliability demands of industrial and military-grade unmanned systems.
As applications for robots and unmanned platforms transition from controlled laboratory settings to complex industrial and military scenarios, the requirements for core sensors have intensified. Traditional low-cost MEMS IMUs often struggle with long-endurance tasks due to drift issues, while high-end solutions like Fiber Optic Gyroscopes (FOGs) face limitations regarding cost, size, and weight.
The newly launched U-Series, which includes the U5000, U6300, and U7000 models, aims to fill this specific market gap. These sensors are engineered to support the navigation, guidance, and control performance of Unmanned Aerial Vehicles (UAVs), Unmanned Ground Vehicles (UGVs), Unmanned Surface Vessels (USVs), and Autonomous Underwater Robots (UUVs).
The U6300 model serves as a prime example of the series’ capabilities, integrating high-performance three-axis MEMS gyroscopes and three-axis MEMS accelerometers. Through system-level design and algorithm optimization, the unit achieves a gyroscope zero bias instability of 0.1°/h and an accelerometer zero bias instability as low as 10 μg. These specifications allow the hardware to meet the requirements of most industrial and select tactical applications. Crucially, this level of precision helps reduce position estimation errors during GNSS signal interruptions, facilitating longer periods of autonomous navigation.
Designed for operation in harsh environments, the U6300 features comprehensive temperature compensation ranging from -40°C to +85°C to ensure stability in extreme weather. The unit is built with anti-vibration and anti-impact capabilities suitable for industrial robots, off-road UGVs, or high-speed drones. Despite its rugged capabilities, the device remains compact, measuring 38.6 x 44.8 x 10 mm and weighing 50g, a form factor intended to simplify system integration. Additionally, it supports a high-frequency data output of 1000Hz to capture fast motion details.
According to the Product Manager at Micro-Magic Inc, the development of the U-series is based on the urgent market demand for high cost-effectiveness and high reliability IMUs.
The Product Manager said, “We have successfully elevated the performance of MEMS inertial sensors to a new level through the optimization of core MEMS chips and advanced calibration compensation algorithms. The U series IMU product is not just a component, but also a crucial step in providing our customers with the cornerstone of ‘autonomous perception’ for unmanned systems and intelligent equipment.”
