公开(公告)号：US07825655B1

公开(公告)日：2010-11-02

申请号：US12125528

申请日：2008-05-22

申请人： Eberhard Stabel ,  Carsten Elscher ,  Henry Menke

发明人： Eberhard Stabel ,  Carsten Elscher ,  Henry Menke

IPC分类号： G01B7/14

CPC分类号： G01B7/14

摘要： An inductive proximity sensor includes a sensor housing, a sensing coil and an evaluation circuit. The sensor housing may generally include a sensing portion and a body portion. The evaluation circuit may be electrically coupled to the sensing coil and disposed in the body portion. The sensing coil may be positioned in the sensing portion such that the sensing coil is recessed from an outer edge of the sensor housing by a protective annulus disposed between the sensing coil and the outer edge. The sensing coil may be spaced from the sensor housing by a zone having low magnetic permeability relative to the sensor housing disposed between the sensing coil and the sensor housing. The zone may extend circumferentially around the sensing coil. A protective plate may be disposed between the outer edge of the sensor housing and the sensing coil and recessed from the outer edge of the housing.

摘要翻译： 感应式接近传感器包括传感器外壳，感测线圈和评估电路。 传感器壳体通常可以包括感测部分和主体部分。 评估电路可以电耦合到感测线圈并且设置在主体部分中。 感测线圈可以定位在感测部分中，使得感测线圈通过设置在感测线圈和外边缘之间的保护环从传感器外壳的外边缘凹陷。 感测线圈可以与传感器壳体间隔开相对于设置在传感线圈和传感器外壳之间的传感器外壳的磁导率低的区域。 该区域可围绕传感线圈周向延伸。 保护板可以设置在传感器壳体的外边缘和感测线圈之间并且从壳体的外边缘凹陷。