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The working principle and advantages and disadvantages of optical pyrometer and photoelectric colorimeter pyrometer
Optical pyrometers are currently widely used for temperature measurement of high-temperature melts and furnaces, and are very important high-temperature instruments in metallurgy,
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Matters needing attention when using optical pyrometers
The effect of non-black body. Since the measured object is a non-absolute black body, and the blackness coefficient ελ of the object is not constant, it is related to the wavelength λ, the surface condition of the object and the temperature.
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Temperature measurement principle of optical pyrometer
Any object at high temperature will project a certain wavelength of electromagnetic waves (radiant energy). The visible light with a wavelength of 0.65μm electromagnetic wave is most sensitive to human eyes
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Analysis of the principle of optical pyrometer
Optical pyrometer is a temperature measuring instrument based on the principle of spectral radiation. The object will emit light at high temperature. In the wavelength range of visible light (0.35 ~ 0.75),
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The development history of infrared optical thermometer
In the production process, infrared optical temperature measurement technology plays an important role in product quality control and monitoring, equipment online fault diagnosis and safety protection, and energy saving.
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What is the difference between an infrared thermometer and an optical pyrometer?
The first is the difference in measurement range. Optical pyrometers measure high temperatures from 700°C to 3200°C. Infrared thermometers have a wider temperature measurement range, ranging from low temperatures of minus tens of degrees to high temperatures of 3000 degrees, which can be said to be more extensive.
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Temperature measurement principle of optical pyrometer
Any object at high temperature will project a certain wavelength of electromagnetic waves (radiant energy). The visible light with a wavelength of 0.65μm electromagnetic wave is the most sensitive to human eyes, and the radiant energy of this wavelength changes significantly with temperature.
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Maintenance and Care of Optical Pyrometers
The optical pyrometer should always be stored in a special box to avoid dust intrusion and mechanical damage.
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How Optical Pyrometers Work, Advantages and Disadvantages
Optical pyrometer is one of the earliest and most widely used non-contact thermometers.
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