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Several factors affecting the temperature measurement of pyrometers

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Several factors affecting the temperature measurement of pyrometers

(Summary description)At different distances, the effective diameter of the measurable target is different, so pay attention to the target distance when measuring small targets.

Several factors affecting the temperature measurement of pyrometers

(Summary description)At different distances, the effective diameter of the measurable target is different, so pay attention to the target distance when measuring small targets.

Information

1. The relationship between the size of the temperature measurement target and the temperature measurement distance
At different distances, the effective diameter of the measurable target is different, so pay attention to the target distance when measuring small targets.

High temperature pyrometer from China

2. Select the emissivity of the measured substance
Infrared thermometers are generally graded according to a black body (emissivity ε = 1.00), but in fact, the emissivity of substances is less than 1.00. Therefore, when the real temperature of the target needs to be measured, the emissivity value must be set. The emissivity of matter can be found in "Data on the Emissivity of Objects in Radiation Thermometry". ?
3. Measurement of target in strong light background
If the measured target has bright background light (especially direct sunlight or strong light), the accuracy of the measurement will be affected, so objects can be used to block the strong light of the direct target to eliminate the interference of the background light.
Fourth, the measurement of small goals
Aim and focus
Aiming: The small black dot in the eyepiece is the temperature measurement point, use the black dot to aim at the measured target
Focusing: The objective lens is moved back and forth until the object to be measured is the clearest. If the diameter of the object to be measured is much larger than the small black dot, precise focusing can be omitted. Please refer to the manual for the specific method of focusing.

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