Abstract
A new type sensor for measuring an extremely feeble grasping power by using rubber optical fiber has been developed which can measure human grasping power. In addition, we examined the possiblities to measure the patient's grasping power by a hand dynamometer.
The optical intensity of rubber optical fiber was linearly related to the applied force. The sensitivity was 5.38mV/kg and 0.56mV/kg in the range from 0 to 0.50kg and above 0.50kg, respectively.