Vertical Reference Units (VRU)
The MicroStrain VRU product line consists of advanced vertical reference units that measure roll, pitch, and yaw for applications requiring precise inclination estimation and platform orientation. Building upon all the proven capabilities of the MicroStrain IMU sensors, VRUs incorporate an Extended Kalman Filter to provide enhanced static and dynamic inclination estimates with superior accuracy and stability.
These devices integrate multi-axis MEMS gyroscopes, accelerometers, and inclinometers to measure tilt with reference to gravity as well as comprehensive orientation and inclination data. The Extended Kalman Filter processes sensor data to deliver optimal pitch, roll, and yaw measurements that remain accurate even in dynamic conditions with varying accelerations and angular motions.