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Optical Pyrometers (Disappearing Filament Pyrometer)
1 Answer
written 8.3 years ago by | • modified 8.3 years ago |
• In this type of pyrometer, the tungsten filament of an electric bulb is used as a radiator.
• The intensity of radiation of filament is compared with the intensity of the radiation of the hot surface.
• When both intensities match, the filament disappears against the background.
• The …