Independently excited proximity or presence switch arrangement

Details Independently excited proximity or presence switch arrangement Independently excited proximity or presence switch arrangement

2005-02-22

2005-02-22

Tweel, John (Department: 2636)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S561000, C340S562000, C324S662000

Reexamination Certificate

active

06859140

ABSTRACT:
The invention relates to a proximity or presence switch arrangement operating in accordance with the inductive principle, comprising at least one inductor integrated in an oscillating circuit and an electronic control and evaluation device connected downstream for sensing or detecting the approach and/or presence of a material influencing electromagnetic fields.

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