Patent ID: 6311540
Filing Date: 2001-11-06
Classification: A61B,G01S

Abstract:
A method of calibrating a transducer outputting a scanning beam for scanning a body along a scanning plane through the body, said transducer having a first position sensor attached thereon at a fixed location, for measuring the location and orientation of said transducer with respect to the scanning plane, comprising the operations of:(a) actuating said transducer to scan a body along a scanning plane while measuring the location and/or the orientation of the position sensor with respect to a fixed reference point in space;(b) utilizing a second position sensor to measure the location and orientation of the scanning plane with respect to said reference point in space while said transducer scans the body along the scanning plane;(c) and computing, from the measurements produced in operations (a) and (b), a value representing the location and orientation of the transducer scanning plane with respect to said first position sensor for use in calibrating said first position sensor according to the position at which it is fixed on the transducer.