A method for determining a a relative position between two relatively movable units described below, the position information, the position determining system and medical device

摘要

A method for determining a a relative position between at least two relatively movable units (6, 7) described below, the position information, wherein one of the units (7) by means of at least one electron - acoustic transducers (8) emits an acoustic signal and the other of the units (6) by means of at least one electron - acoustic transducers (9) receives the acoustic signal, whereby the relative position information, by means of the evaluation of at least a given time is determined with respect to the received signal.