| 1. | Ratio pyrometers are essentially two brightness pyrometers in a single instrument.
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| 2. | Ratio pyrometers are essentially two brightness pyrometers in a single instrument.
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| 3. | Reflected light was measured using a pyrometer lamp as a photometer.
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| 4. | The technician is measuring the temperature with an optical pyrometer.
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| 5. | This establishes a second calibration point for the pyrometer.
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| 6. | Handheld pyrometer devices are often marketed as infrared thermometers.
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| 7. | Many disappearing-filament pyrometers use a red filter.
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| 8. | Pyrometers were installed in December 1917 to accurately measure temperatures during the forging process.
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| 9. | The glass will remain in the closed kiln until the pyrometer reads room temperature.
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| 10. | The pyrometer, invented by Pieter van Musschenbroek, is a temperature measuring device.
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