Effect of ambient temperature on infrared thermometer
When using infrared thermometry to measure the temperature of an object, we inevitably have to consider external factors. The obvious one is the environment. We have some new technologies of our own in terms of environmental conditions. Let’s talk about some of the effects of environmental conditions on the thermometer.
The environmental conditions in which infrared temperature measurement is located have a great impact on the measurement results, which should be considered and appropriately resolved, otherwise it will affect the temperature measurement accuracy and even cause damage to the thermometer.
Effect of ambient temperature on the performance of infrared thermometer
The ambient temperature is divided into two situations: one is the environment of the actual measured target, and the other is the ambient temperature of the infrared thermometer's residence. If the background temperature of the measured target is higher than or close to the measured target, it will affect the measurement results. When the ambient temperature of the infrared thermometer's residence exceeds the range that the thermometer can withstand, it will also affect the temperature measurement results.
Effect of humid environment on the performance of infrared thermometer
A humid environment can cause an internal short circuit in the thermometer, thus affecting the measurement results.
Thermometer temperature measurement site factors:
(1). Measure the angle to see if it is within the allowed range;
(2).Whether it is aimed correctly
(3). Is the selected spectral range (wavelength) appropriate? When measuring targets in containers with glass windows, the spectral range cannot be selected from 8 to 14 μm, but should be selected around 1 μm;
Measurement of targets in strong light background:
If the measured target has relatively bright background light (such as direct sunlight or strong lamps), the measurement accuracy will also be affected. Therefore, objects can be used to block the strong light of the direct target to eliminate the influence of background light interference on the measurement results.
In order to reduce the impact of environment and background radiation on temperature measurement results, the following measures should be taken:
Try to use it in a cool place indoors or outdoors. For indoor equipment, you can turn off the lighting of direct lighting equipment and avoid other radiation effects.
For highly reflective equipment surfaces, you can change the detection angle to find a good angle that can avoid reflection for detection.
In order to reduce the radiation effects of solar radiation and surrounding high-temperature background, shielding measures can be taken during detection.
