Inertial measurement unit
Honeywell Sensing and Control
The HG1171 Series is a six degrees of freedom (6DF) inertial measurement unit (IMU) that senses rotation rate about the roll, pitch and yaw axes (X, Y and Z axes) and acceleration along the longitudinal, lateral and vertical axes (X, Y and Z axes). This product is designed for enhanced accuracy of tracking and monitoring of vehicle/platform (up/down, left/right, forward/backward) in a hard mounted configuration. It provides key data for automated steering and vehicle controls, freeing the operator to focus on machine functions, one of the main reasons customers use IMUs. The HG1171 contains high performance MEMS (Micro Electromechanical Systems) rotation rate sensors (gyroscopes), whose function is based on the physical properties of the Coriolis effect, as well as enhanced precision integrated accelerometers for each axis. High speed CAN bus (2.0 A or B) provides cost-effective, high-integrity serial data communications bus for real-time control applications operating at data rates up to 1 Mbit/s. This capability allows enhanced error detection and confinement. Customization of I/O timing, CAN labels, connectors, and other parameters allows the customer to specify changes in the IMU so it more readily fits into existing architecture on vehicle. A temperature sensor in each rotation rate sensor provides a temperature value to the processing module where the samples are filtered and compensated. This information allows the customer’s system to perform over a wide temperature range. The tough metal housing is often ideal for demanding environments. The user may mount the product on the vehicle frame outside the cabin, anywhere an IMU is needed.