Pyrometer adapted for detecting UV-radiation and use thereof
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United States of America Patent
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Jul 30, 2013
Grant Date -
Mar 17, 2011
app pub date -
Aug 18, 2010
filing date -
Sep 17, 2009
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Abstract
A pyrometer that is adapted for detecting radiation in the range of 250 to 450 nm is disclosed. The pyrometer can be used for determining the temperature of a matter thermally emitting only ultraviolet-radiation. In particular, the pyrometer can include: a detector having an active area adapted for measuring thermal radiation, a longpass filter having a cut-off wavelength in the range of 400 to 450 nm, means adapted for alternately activating and deactivating the longpass filter, means adapted for measuring a first thermal radiation signal when the longpass filter is deactivated and adapted for measuring a second thermal radiation signal when the longpass filter is activated, and means adapted for determining a temperature corresponding to the measured thermal radiation from a difference of the first radiation signal and the second radiation signal.
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