Patent ID: 8860435

Claim:
A locating appliance, for detecting objects enclosed in a medium, comprising: a housing; an output device, provided in or on the housing, wherein the output device is a display; a first electrical device, arranged in the housing, and including at least two electromagnetic coils, wherein the first electrical device is configured such that it takes an actuation as a basis for producing an electromagnetic alternating field in a region of an object; a second electrical device, arranged in the housing, and including at least two electrodes, wherein the second electrical device is configured such that it takes the actuation as a basis for producing an electrical field in the region of the object; an actuating apparatus, arranged in the housing, and including a push-pull measurement bridge configured to actuate the first electrical device and/or the second electrical device, in each case with alternating voltages having a variable ratio; and a comparator configured to generate a signal which denotes an object as sensed if a respective ratio of the voltages from the first electrical device and/or the second electrical device differs from a predetermined ratio by more than a prescribeable amount, wherein the output device is configured to output a signal indicating the object if the respective ratio of the voltages from the first electrical device and/or the second electrical device differs from a predetermined ratio by more than a prescribeable amount.