Thermal measuring and testing – Temperature measurement – In spaced noncontact relationship to specimen
Patent
1992-04-17
1993-05-11
Cuchlinski, Jr., William A.
Thermal measuring and testing
Temperature measurement
In spaced noncontact relationship to specimen
374139, 356 43, G01J 506
Patent
active
052095703
ABSTRACT:
It is a problem of pyrometric temperature measuring of melts in a vacuum that the material of the melt will be deposited on mirrors, windows and other optical devices so that the radiation will be screened more and more effectively, the closer it comes to the pyrometer. In order to avoid vapor desposition in the path of radiation, a grating arrangement is provided between the melt and the pyrometer, which focusses the incoming radiation and concentrates it onto the pyrometer. The grating arrangement is partly permeable to the molecules of the melt material. The direct path between the melt and the pyrometer is blocked by a screen. In this way, vapor deposition on the window prefixed to the pyrometer are avoided, while the radiation can reach the pyrometer.
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Bennett G. Bradley
Cuchlinski Jr. William A.
Deutsche Forschungsanstalt fur Luft - und Raumfahrt e.V.
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