公开(公告)号：US06920411B2

公开(公告)日：2005-07-19

申请号：US10727884

申请日：2003-12-04

申请人： Timothy A. Christensen ,  John Eugene Fulmer

发明人： Timothy A. Christensen ,  John Eugene Fulmer

IPC分类号： G01S17/02 ,  G01V3/10 ,  G06F15/00 ,  G01B7/14 ,  G08B13/26

CPC分类号： G01V3/101

摘要： A proximity sensor has a resonant circuit which when stimulated by a pulse produces a signal with decaying oscillations. The number of such oscillations above a signal threshold varies in relation to the distance between a metal object and the proximity sensor. The sensor operation is configured by deriving a function that defines how the performance of a given proximity sensor deviates from performance reference data. The function is employed to normalize the count of oscillations produced by the given proximity sensor and the normalized count is used to determine presence of an object. By normalizing sensor performance, common configuration data can be used to setup a given proximity sensor without having to take into account specific performance variations of that sensor.

摘要翻译： 接近传感器具有谐振电路，当由脉冲刺激时产生具有衰减振荡的信号。 在信号阈值之上的这种振荡的数量相对于金属物体和接近传感器之间的距离而变化。 通过导出定义给定接近传感器的性能如何偏离性能参考数据的函数来配置传感器操作。 该函数用于归一化给定接近传感器产生的振荡计数，并且使用归一化计数来确定对象的存在。 通过归一化传感器性能，可以使用通用配置数据来设置给定的接近传感器，而不必考虑该传感器的特定性能变化。