Patent ID: 10468784

Abstract:
An apparatus (100) and method (300) of detecting and determining a vector to a specified material using an H-field antenna (102A) and an E-field antenna (102B), each antenna having at least one coil portion (102A1, 102B1) wound around at least one corresponding rod portion (102B1, 102B2), the coil portions being electrically connected in parallel, and the rod portions being electrically connected in parallel. The specified material is deemed to be present in the field of view of the E-field antenna based upon a change in orientation of the H-field antenna when a first current is applied to the coil portions through a first resistor (606A). An orientation to, and a distance to, the specified material is determined based upon a new orientation of the H-field antenna and the resistivity of a second resistor (606B) when a second current is applied through the second resistor to the rod portions.