Inductive proximity sensor

Electricity: measuring and testing – Magnetic – Displacement

Reexamination Certificate

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Details

C324S207170, C324S202000

Reexamination Certificate

active

07847539

ABSTRACT:
The invention relates to an inductive proximity sensor with a sensor element which includes a resonant circuit which provides an output signal which depends on the damping by an electrically conductive object. In accordance with the invention, the inductive proximity sensor has a ΣΔ modulator for the evaluation of an output signal of the resonant circuit. The invention furthermore relates to a method for the determination of the presence and/or of the spacing of a metallic object with the help of an inductive proximity sensor.

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English Translation of Article: Junge, H.-D. & Möschwitzer, A., Lexikon Elektrotechnik. VCH Verlagsgesellschaft, Weinheim, 1999, pp. 122-123.
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Translation of European Search Report Dated Aug. 8, 2008 Relating to European Patent Application No. 08 002 554.7, 4 pages.

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