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Potentiometric sensor element and method for producing same

  • US 9,766,203 B2
  • Filed: 09/09/2013
  • Issued: 09/19/2017
  • Est. Priority Date: 09/14/2012
  • Status: Active Grant
First Claim
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1. A potentiometric sensor element comprising:

  • a measuring element; and

    a shield housing permanently secured to the measuring element and accommodating an electronic sensor unit therein sealed off against external influences, wherein;

    the electronic sensor unit is connected to a contactless interface adapted to exchange energy and signals with a corresponding contactless interface in an electronic base unit;

    the shield housing includes an outer sleeve and an inner sleeve accommodated in the outer sleeve, the electronic sensor unit being within the inner sleeve and surrounded by a first casting compound such that the inner sleeve with the electronic sensor unit and first casting compound form a filled inner element of the shield housing; and

    the filled inner element is permanently bonded to the outer sleeve by a second casting compound which is different from the first casting compound.

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