Electrode arrangement system for electrical handheld device has transmission electrode and compensation electrode, which generate current in reception electrode representing approach of hand to handheld device

摘要

The electrode arrangement system comprises radiating a first alternating electric field from a transmission electrode (SE), and radiating a second alternating electric field from a compensation electrode (KE). First alternating electric field is phase-delayed with respect to the second alternating electric field. Alternating electric fields radiated at the transmission electrode and compensation electrode generate current in a reception electrode (EE), which is representative of an approach of hand to the handheld device. Independent claims are also included for the following: (1) Detection device for electrical handheld device; and (2) Circuit arrangement for generating an output signal, which is indicative for dielectric properties of an observation area of capacitive sensor element.