Development and Design Wearable Sensorial System of Low Cost to Determine the Metacarpophalangeal and Interphalangeal Joints Angles

This paper presents the development of a measuring device for biomechanics parameters, specifically a wearable system to measure the angles of the joints of the hand, that is, the metacarpophalangeal and interphalangeal angles of the wrist in 3 types of grip: typical object (bottle), precision (pencil) and stiffness (gym weight), by means of the adjustable glove with flexible sensors the user transmits the data while grasping the different objects to a data capture system that performs an analog-digital conversion and then processes the signals and performs conversion in terms of the joint angles, finally plotted on a graphical interface for analysis. The designed system was compared with optical motion capture systems and the Data-Glove 5 system. The developed system is of low cost, and it is a possible solution for the capture of the angles of the joints in front of the current commercial systems.