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1. 发明申请

WO2012093124A3 CAPACITIVE PROXIMITY SENSOR AS WELL AS METHOD FOR CAPACITIVE PROXIMITY DETECTION 审中-公开
标题翻译：电容式接近传感器作为电容式近似检测方法
公开(公告)号：WO2012093124A3
公开(公告)日：2012-08-30
申请号：PCT/EP2012050059
申请日：2012-01-03
申请人： IDENT TECHNOLOGY AG , ERKENS HOLGER
发明人： ERKENS HOLGER
IPC分类号： H03K17/955
CPC分类号： G01R27/2605 , H03K17/955 , H03K2017/9613 , H03K2217/960705 , H03K2217/96073 , H03K2217/960745
摘要： The invention relates to a capacitive proximity sensor, comprising - a first sensor electrodeE1 and a second sensor electrode E2, a signal generator E1,E2 for providing a first and a second electric alternating signal, - a first load element L which comprises a first and a second electric load, in which the first alternating signal by means of the first load can be fed to the first sensor electrode and the second alternating signal by means of the second load to the second sensor electrode, and wherein the electric loads each together with the capacitive load to be measured at the respective sensor electrode form a lowpass filter, and - a signal processing device A which is coupled with the first sensor electrode and with the second sensor electrode, and which is adapted to form a first measurement value from the push-pull portion of a first electric parameter tapped at the first sensor electrode and a second electric parameter tapped at the second sensor electrode. Also a method for the capacitive approximation detection with a capacitive proximity sensor according to the invention is provided.
摘要翻译：本发明涉及一种电容式接近传感器，包括：第一传感器电极E1和第二传感器电极E2，用于提供第一和第二电气交变信号的信号发生器E1，E2， - 第一负载元件L，其包括第一和第二电负载，其中通过第一负载的第一交变信号可以通过第二负载馈送到第一传感器电极和第二交变信号到第二传感器电极，并且其中电负载各自与在各传感器电极处要测量的电容性负载形成低通滤波器，以及 - 信号处理装置A，其与第一传感器电极和第二传感器电极耦合，并且适于从第一传感器电极形成第一测量值在第一传感器电极处敲击的第一电参数的推挽部分和在第二传感器电极处敲击的第二电参数。还提供了一种根据本发明的用于电容式接近传感器的电容近似检测方法。

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