We can see many smart technological scenarios in daily life and industrial fields. Phone screens rotate with movements, drones fly steadily in the air, missiles hit targets accurately, and submarines sail stably in deep water without external signals. All of these rely on a core component — the
Inertial Measurement Unit (IMU). As a fully autonomous motion sensing device, IMU works independently without satellites, networks or cameras. It continuously detects the rotation, acceleration and tilt of equipment, serving as the fundamental support for autonomous sensing and navigation. Our self-developed and self-produced IMU series adopt mature inertial sensing technology. Featuring full independent operation, all-weather adaptability, strong anti-interference ability and wide environmental compatibility, our products provide stable and reliable original motion data for various carriers.
Many people are familiar with gyroscopes, but IMU is not a single sensor. Instead, it is a complete integrated motion sensing system. Simply put, gyroscopes detect rotation, while accelerometers sense acceleration and shaking. A standard IMU integrates a 3-axis gyroscope and a 3-axis accelerometer. Some models are equipped with magnetometers and barometers to assist in direction and altitude detection. Unlike ordinary sensors, IMU does not directly output speed or position. It records real-time motion changes continuously. These raw data are further calculated and analyzed by the backend system to obtain accurate attitude, speed and position. In short, IMU acts as a real-time and precise motion observer for equipment.
IMU and INS (Inertial Navigation System) are often mentioned together, but they are different. IMU is a pure hardware sensing unit that collects original motion data and serves as the core component of the navigation system. Based on IMU, INS adds processors and auxiliary sensors to optimize, correct and fuse data, so as to output accurate and stable navigation results. To put it simply, IMU senses data, while INS processes data and realizes high-precision autonomous navigation.
All IMUs work based on the physical law of inertia, but different models are designed for different scenarios. We have built a full-range IMU product matrix covering both civil and high-end special scenarios. The mini MEMS IMU features small size, low power consumption and high cost performance. It is widely used in smartphones, wearable devices, small drones and civil surveying equipment, bringing high-precision inertial technology to daily civilian scenarios. Our high-precision fiber optic gyro IMU adopts sophisticated manufacturing processes, with ultra-high stability, ultra-low drift and long-term accurate output. It adapts to harsh scenarios such as aerospace, submarines and deep-sea exploration. It maintains stable and precise performance for a long time without GPS or external signals, solving the common drawbacks of traditional navigation devices such as signal dependence, easy interference and rapid accuracy attenuation.
Like all precision devices, IMU has minor inherent errors caused by manufacturing and installation, such as axis deviation and zero offset, which may affect long-term working accuracy. To solve these common industry problems, our IMU products adopt self-developed high-precision error compensation algorithms and comprehensive factory calibration. Static calibration, flip calibration and dynamic turntable calibration are applied to build accurate error models and correct various deviations in real time. High-end models adopt redundant structural design to improve fault tolerance and operational reliability. With all-round optimization of hardware technology and software algorithms, our products effectively avoid long-term accuracy drift and meet the strict industrial standards for long-term high-precision and stable operation.
As an invisible core device in the smart era, IMU has a wide range of applications. Our full-series IMU products balance practicability and professionalism. Civilian models are widely used in smart interaction, drone flight, intelligent driving and industrial surveying with stable performance and high cost performance. High-end fiber optic IMUs are dedicated to aerospace, deep-sea exploration and special navigation fields, realizing all-weather and fully autonomous precise motion sensing without satellite or network support. With reliable quality, accurate sensing capability and strong environmental adaptability, our IMU products provide solid technical support for various intelligent carriers and high-end equipment, making them the preferred solution for inertial navigation and sensing in various industries.
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