User's Manual

Document MV0319P.N
© Xsens Technologies B.V.
MVN User Manual
127
Tracker Performance
Static accuracy (Roll/Pitch)
0.2 deg
Static Accuracy (Heading)
0.5 deg
Dynamic Accuracy
1 deg RMS
Accelerometer range
MTx: ± 160 m/s
2
(16 g) MTw: ±160m/s
2
(16g)
Gyroscope range
± 2000 deg/s
MVN Performance
MVN human model
MVN uses a 23 segment biomechanical model with 22 joints.
Each joint is specified by statistical parameters for 6DOF joint
laxity. An advanced spine and shoulder model is used that
computes the kinematics of the spine and shoulder blades.
System Calibration
General
Flexible calibration scheme with instant feedback regarding the
expected accuracy. Calibration can be done without assistance
from a second person.
Minimum calibration time
10 seconds.
Basic calibration needs only subject length, foot length.
Advanced calibration
10 – 30 seconds per additional step.
Advanced subject specific calibration determines tracker
alignment and/or subject specific dimensions.
Calibration procedures for subjects with limited range of motion
are possible.
MVN Fusion Engine
Output
Full kinematics of each segment (position, velocity,
acceleration, orientation, angular velocity and angular
acceleration).
MVN Studio PRO additionally provides joint angle and CoM.
All at preset sample frequency (max 210Hz).
Double integration of body segment accelerations allows for
jumping/running (permanent floor contact is not needed).