Body measurements Info

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. Inertial sensor 4dof here you can find more information about inertial sensors. Roll pitch and yaw. That is to say one per axis for each of the three vehicle axes. An inertial frame of reference in classical physics and special relativity possesses the property that in this frame of reference a body with zero net force acting upon it does not accelerate. It is composed of 3 accelerometers 3 gyroscopes and depending on the heading requirement 3 magnetometers.

An inertial measurement unit also known as imu is an electronic device that measures and reports acceleration orientation angular rates and other gravitational forces. An inertial measurement unit based method to estimate hip and knee joint kinematics in team sport athletes on the field. That is such a body is at rest or moving at a constant velocity. Bastiaansen erik wilmes michel s. 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. 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.

Sensitivity analysis results suggested that accurate extraction of inertial measurement unit orientation on the body is a key factor in improving the accuracy. 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. Inertial measurement sensors our precise inertial measurement sensors provide reliable data for functions such as chassis controllers or electronic braking systems. Hence a simple calibration protocol was proposed to reach a better approximation for inertial measurement unit orientation. In particular the cmc values for roll of the riders pelvis indicate a very good intertrial repeatability.