筋電義手使用者のための二感覚フィードバック装置において温度変化が力覚フィードバックに与える影響について

抄録

In this study, a feedback device of force sensation and temperature sensation for myoelectric prosthetic hand users was developed. When an object is held by the myoelectric prosthetic hand, hardness and temperature of the object are measured by sensors, and the force sensation and the temperature sensation are fed back to user’s upper arm. It was confirmed that there exists influence of temperature change on force sensation through the result of evaluation experiment for the feedback device. Therefore, compensation functions were derived using the maximum likelihood method so as to obtain the same force sensation as the case where the temperature does not change when the temperature change actually occurred. Using the paired comparison method, verification experiments were carried out to evaluate the derived compensation functions, and the results showed the effectiveness of execution of the compensation.