Position detection for transcutaneous energy transmission system for capsule endoscope

This paper describes a method for detecting the position of a capsule endoscope by using small, flat arrayed coils and discusses the improvement of this position detection and the energy transmission efficiency. The position of the capsule endoscope was detectable by measuring the terminal voltage variation in each small, flat coil connected in parallel. The coil that is utilized as an arrayed connection should have no crevice. Such coils can broaden the domain of high energy transmission efficiency.