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Fill level switch and sensor element for a fill level switch

  • US 8,474,314 B2
  • Filed: 03/27/2009
  • Issued: 07/02/2013
  • Est. Priority Date: 04/01/2008
  • Status: Active Grant
First Claim
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1. Fill level switch for measuring the fill level of a medium in a container, comprising:

  • a sensor element for contacting the medium, the sensor element having a window facing the medium in a mounted position of the fill level switch in the container,a sender for applying an electromagnetic emission signal to the sensor element, andan evaluation unit for detecting a received signal from the sensor element,wherein the sensor element includes at least one cable for guiding the emission signal, the cable being a delay line, at least a part of which is electrically influenceable by the medium via the window.

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