Abstract
We have developed a traveling micro capsule, which is driven by the inertia force and friction force. It is small enough, only 7 mm in diameter and 12 mm long, it can be put in the human gullet or intestines. The capsule contains a small magnet and a coil, and electric pulse drives the magnet to move the capsule. We did the experimental investigation that the capsule can travel on a plastic material, which has similar elasticity characteristics to living body. We have made the capsule smaller in length than the one presented last time and we have measured the temperature of the capsule during the move showing no harm to human body. Using calculated results, we have arranged new input signal pattern for the capsule and succeeded to move the capsule about twice as fast as the former one. Our capsule is supposed to be useful for medical treatment as inspection, drug delivery or operation.
