Patent ID: 7358746

Claim:
A method for locating objects enclosed in a medium, comprising the step of generating a detection signal by at least one capacitive sensor device, penetrating by the detection signal the medium that is to be analyzed in such a way that information is obtained about the objects that are enclosed in the medium, obtaining the information about the objects that are enclosed in the medium by evaluating the detection signal, particularly by measuring impedance so that a value and a phase of a complex resistance are measured, performing the evaluating of the detection signal by using an algorithm that separates the measured signal into signal parts originating from the enclosing medium and signal parts originating from the object enclosed in the medium, determining a location of the object that is located in the medium based on the signal parts originating from the enclosing medium and on the signal parts originating from the object, and making information about the determined location of the object enclosed in the medium available to a user.