A measurement system for wrist movements in biomedical applications

The design and proof of concept implementation of a biomedical measurement device specifically targeting human wrist movements is presented. The key aspects of development are the integrated measurement of wrist kinematics and lower arm muscle activities, wireless operation and the possibility of realtime data streaming. The designed system addresses these requirements using single chip 9 degrees-of-freedom inertial sensors for kinematic measurements, an active myoelectric electrode frontend design to record muscle activities and a Bluetooth communication interface for device control and data streaming. In addition to design considerations and proof of concept implementation, kinematic test measurement data is presented to validate system usability in a future wrist movement classification task.