Photometry of the Optical Pyrometer and Its Use below 800°C
- 1 March 1959
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 49 (3), 249-253
- https://doi.org/10.1364/josa.49.000249
Abstract
The standard deviation of temperature measurements due to uncertainty in photometric matching has been determined for the disappearing filament optical pyrometer, with and without a red filter, for exit pupils of 0.7-mm and 1.4-mm diameter and for filament apparent angular widths of 10 min and 7 min. It is shown that the results are in quantitative agreement with the direct measurements of contrast limens reported by Blackwell. With a good commercial pyrometer in which the red filter has been removed it is possible to make measurements with a standard deviation for a single pair of observations of 6°C at 600°C.Keywords
This publication has 4 references indexed in Scilit:
- ACCURACY OF OPTICAL PYROMETRY IN THE RANGE 800 °C TO 4000 °CCanadian Journal of Physics, 1958
- Optical Pyrometry below Red HeatJournal of the Optical Society of America, 1957
- Contrast Thresholds of the Human EyeJournal of the Optical Society of America, 1946
- Disappearance of the Filament and Diffraction Effects in Improved Forms of an Optical Pyrometer1Journal of the Optical Society of America, 1923