Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1976-01-07
1977-05-03
Queisser, Richard C.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
356 43, 356118, G01J 506, G01N 2140
Patent
active
040206955
ABSTRACT:
The temperature of a metal surface is measured by positioning a radiation detector so that the angle between its optical axis and a line normal to the surface is equal to the principal angle of incidence of the radiation emitted by the surface and interposing a polarizer between surface and radiation detector adjusted to pass only radiation polarized parallel to the plane of emittance. In this way the effects of emissivity variations of the surface are greatly reduced.
REFERENCES:
patent: 3422678 (1969-01-01), Murray
patent: 3462224 (1969-08-01), Woods et al.
patent: 3791635 (1974-02-01), Schwestka
Appleman John S.
Jones & Laughlin Steel Corporation
Queisser Richard C.
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