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Device and method for detecting the approach and/or contact and pressure of an object in relation to a detection surface
Device and method for detecting the approach and/or contact and pressure of an object in relation to a detection surface
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机译:用于检测物体相对于检测表面的接近和/或接触和压力的装置和方法
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摘要
A detection device including:a measurement electrode, and a second electrode separated from one another by a distance (D) that is elastically modifiable locally, by a load exerted by an object on a detection surface, anda controller arranged in order to: connect the electrodes to an alternating guard potential (Vg) in order to measure a capacitance representing an approach and a contact; andconnect the second electrode to a second potential a second potential proportional to the guard potential (Vg) and having a different amplitude, or to the ground potential (G), in order to measure a capacitance representing a pressure.;Also provided is a detection method utilizing such a detection device.
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机译:一种检测装置,包括:一个测量电极,以及一个第二电极,该第二电极通过物体在检测表面上施加的负载,可以局部弹性地改变距离(D),并且 ListItem> 配置了一个控制器以: 将电极连接到交替的保护电位(V g Sub>),以便测量代表接近和接触的电容;并且 ListItem> 将第二电极连接到第二电势,第二电势与保护电势(V g Sub>)成比例 ListItem> UnorderedList> ListItem> UnorderedList> ListItem> UnorderedList>;还提供了一个不同的幅度,或与地电势(G)不同的幅度。利用这种检测装置的检测方法。
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