1A1-B01 Development of the axial displacement measuring device of pneumatic artificial muscle that focuses on the radial displacement

Abstract

Measurement of contraction displacement of the pneumatic artificial muscle is generally using the distance sensor. However, when we use the distance sensor, system is increasing in size and pneumatic artificial muscle cannot be exhibited to flexibility. In this study, for the purpose of solving the problem, we have developed an axial displacement measuring device. This device utilize the relationship between the axial displacement and the radial displacement of the pneumatic artificial muscles. In this paper, we evaluate the measurement accuracy of this device and we confirmed the usability to measure length of the pneumatic artificial muscle.