SENSOR FOR SENSING AN ELECTRIC FIELD

摘要

A sensor (100) for sensing an electric field includes a movable sensor probe (110), (HO') including one or more pair, typically three pair, of electrically conductive electrodes (HOx), (11Oy), (11Oz) , and may include one or more pair of selectively switchable auxiliary electrodes (1110) . The probe (100), (1001) is movable and may be mounted on a vehicle or trailer (150) . A processor (200) may process electric field signals from the probe (100), (100') for providing a human perceivable indication of the electric field. The processor (200) may perform a Fast Fourier Transform (224) of the electric field signals to produce an indication of the magnitude of the electric field, and may perform unweighted and/or weighted averaging (228), (231) in relation to processing electric field data, setting a comparison threshold, providing a human perceivable indication, or a combination of the foregoing. A speed at which the sensor probe (100), (100') is moving may be utilized in processing the data.