Apparatus for contactless measurement of the temperature in a melting furnace
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United States of America Patent
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Dec 9, 2008
Grant Date -
Apr 13, 2006
app pub date -
Oct 12, 2005
filing date -
Oct 12, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to an apparatus for contactless temperature measurement of a melting charge located in a melting crucible 2 inside a melting furnace, in particular a furnace for precision casting, by means of a pyrometer 5 with an optical system 8 and at least one sensor 6 optically connected to said optical system 8, wherein said optical system 8 can be directed by means of a sight glass 18 onto at least one section of the melting crucible 2. In order to reduce soiling caused by smoke gas deposits on the sight glass, a tube is provided which is connected at its upper end to the sight glass 18, extends into a melting chamber 11 of the melting furnace and can be pointed in the direction of the melting crucible 2.
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