Patent ID: 8710845

Claim:
An electromagnetic sensor cable, comprising cable components: a first sensor cable segment comprising: a plurality of spaced apart electrodes on the first sensor cable segment; and electrical conductors in the first sensor cable segment coupled to the electrodes such that at least one of the electrodes is electrically connectible at at least one longitudinal end of the first sensor cable segment, a second sensor cable segment comprising: a plurality of spaced apart electrodes on the second sensor cable segment; and electrical conductors in the second sensor cable segment coupled to the electrodes such that at least one of the electrodes is electrically connectible at at least one longitudinal end of the second sensor cable segment, and a first signal processing and configuration module having signal processing circuitry configured to perform at least one of: measuring voltages across selected pairs of electrodes, and communicating signals representative of voltages measured across selected pairs of electrodes, wherein the cable components are each configured to connect at the lateral ends one to another.