Development of a Finger Force Distribution Measurement System for Hand Dexterity

In this paper, a finger force distribution measurement system for hand dexterity is developed, newly. This system consists of a measurement device, wireless communication units and a display unit. Measurement data are expressed on the display of the PC in real time and are stored. The other almost devices for finger force and hand force measure the maximum force. Our developed device measure the each finger force distribution, when a cylinder form thing such as a cup or a pet bottle is brought up. Using the measurement system, each finger force of some subjects that is healthy and young are measured to confirm the function of the device. The validity of the device is verified by the experiments. It is clear that influence of little finger is large and the position of thumb is important in grab motion.