主权项 |
1. An obscured feature detector comprising:
three or more sensor plates each to take a sensor reading that varies based on a proximity of the sensor plate to one or more surrounding objects and on a material property of each of the one or more surrounding objects, the three or more sensor plates to collectively create a sensing field, each individual sensor plate of the three or more sensor plates to create a corresponding primary sensing field zone within the sensing field where the individual sensor plate contributes more strongly to the sensing field than any other of the three or more sensor plates, the three or more sensor plates to create primary sensing field zones that are geometrically similar; a sensing circuit coupled to the three or more sensor plates, the circuit being configured to measure the sensor readings of the three or more sensor plates; and an indicator to be toggled between a deactivated state and an activated state to indicate a location of a region of relative high sensor reading. |