In contrast inertial measurement units imu with integrated accelerometers and gyroscopes are small fully portable devices that are independent of the inclination in space and have proved to be equivalent to force platforms in the measurement of the center of mass com and stability analysis 111213. Measurement of lateral longitudinal vertical acceleration and yaw rate as well as inclination detection.
Imu Inertial Measurement Unit Product Overview Tech
Body inertial measurement. Inertial measurement units imus consist of a set of three accelerometers placed to make acceleration related measurements and a set of three rate gyroscopes that sense angular velocities in three mutually perpendicular directions. An inertial measurement unit imu is an electronic device that measures and reports a bodys specific force angular rate and sometimes the orientation of the body using a combination of accelerometers gyroscopes and sometimes magnetometers. Imus come in many shapes and forms. Imus are typically used to maneuver aircraft an attitude and heading reference system including unmanned aerial vehicles uavs among many others and spacecraft including satellites and landers. The application of a full body inertial measurement system is capable of estimating the riders segment kinematics with a cmc between moderate and very good waveform similarity. An inertial navigation system ins is a navigation device that uses a computer motion sensors accelerometers and rotation sensors to continuously calculate by dead reckoning the position the orientation and the velocity direction and speed of movement of a moving object without the need for external references.
Some imus also incorporate magnetometers or a compass to help track orientation. Often the inertial sensors are supplemented by a barometric altimeter and. Inertial sensor 4dof here you can find more information about inertial sensors. Inertial sensor 4dof the inertial sensor comprises not only the angular rate and acceleration sensors but also internal processing of all measured motions of the vehicle. Well generally an inertial measurement unit is a composite sensor suite that combines three gyroscopes and three accelerometers to track the exterior free movement of a rigid body. Inertial measurement sensors our precise inertial measurement sensors provide reliable data for functions such as chassis controllers or electronic braking systems.
The purpose of this study was to validate a commercially available inertial measurement unit imu system against a standard lab based motion capture system for the measurement of shoulder elevation elbow flexion trunk flexionextension and neck flexionextension kinematics. In particular the cmc values for roll of the riders pelvis indicate a very good intertrial repeatability. The data is processed in a single control unit.
Gallery of Body Inertial Measurement
