The UM6 Orientation Sensor uses rate gyros, accelerometers, and magnetic sensors to compute orientation at 500 Hz using Euler Angles or Quaternions. The UM6 makes it easy to obtain orientation data by providing convenient connectors that can interface with a variety of expansion boards for easy integration into a wide variety of systems.
The UM6-LT Orientation Sensor is an OEM version of the UM6, providing equivalent functionality in a smaller footprint at a slightly lower cost. The UM6-LT is also a pin-compatible replacement for the CHR-6dm, which has been discontinued.
The CHR-6dm AHRS adds a three-axis magnetometer to the inertial sensors found on the CHR-6d IMU to create
a complete Attitude and Heading Reference System (AHRS). An onboard 64 Mhz ARM Cortex processor combines data
from all sensors using an Extended Kalman Filter (EKF), and reports orientation using euler
angles over a TTL UART (3.3V) interface at up to 300 Hz.
The CHR-6d IMU combines three accelerometer axes and three rate gyro axes into a tiny, .8" x .7" package. An onboard ARM Cortex processor
samples and filters sensor data, reporting angular rates and accelerations over a TTL UART (3.3V) interface at up to 300 Hz.
As of Feb. 25, 2010, the CHR-6d also includes a built-in Extended Kalman Filter (EKF) for pitch and roll angle estimation.