Device for contactless detection of the position of a moving web
作者： Peter Kespohl
DOI:
关键词: Acoustics 、 Capacitive sensing 、 Electrode 、 Input impedance 、 Electrical engineering 、 Electrode array 、 Transimpedance amplifier 、 Engineering 、 Detector
摘要: The present invention relates to a device for the contactless detection of position moving webs. web has on one side detector electrode covering its entire width and other in area edges transmission electrodes fed by an oscillator phase opposition, so that capacitive couplings between respond opposing fashion deviations from central position. signal received is processed current voltage converter with very small input impedance potential remains at zero, virtually no displacement currents flow screening In this way, sensitivity measurement array independent width.
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