How to make the infrared thermometer measure the target at high temperature
The optical fiber online remote distance infrared thermometer itself has the characteristics of strong anti-electromagnetic interference, anti-corrosion, long transmission distance, and stable operation. Check the temperature in the environment. With its certain flexibility, the optical fiber online infrared thermometer can measure the temperature of the target that cannot be directly observed - such as the inner wall of a container or pipe - and can measure the temperature of the infrared thermometer without using cooling equipment. It can withstand high ambient temperatures up to 200°C.
When an infrared thermometer measures surface temperature, the instrument can pick up all three of these energies. Therefore, all infrared thermometers must be adjusted to read only the energy emitted. Measurement errors are usually caused by reflected infrared energy from other light sources. Some infrared thermometers can change the emissivity, and the emissivity values of various materials can be found in the emissivity table of the book. Other instruments have a fixed emissivity preset of 0.95. The emissivity value is for the surface temperature of most organic materials, paints or oxidized surfaces, and is compensated by applying a tape or flat black paint to the surface to be tested.
The undisputed understanding of infrared technology and its principles is its accurate temperature measurement. When the temperature is measured by the infrared thermometer, the infrared energy emitted by the measured object is converted into an electrical signal on the detector through the optical system of the infrared thermometer. The temperature reading of the signal is displayed, and there are several resolutions to accurately measure the temperature. The main elements of temperature, the most important elements are emissivity, field of view, distance to the spot and orientation of the spot. Emissivity, everything understands reflection, transmission and emission of energy, as long as the energy emitted is indicative of the temperature of the object.
When the tape or paint reaches the same temperature as the base material, measure the temperature of the surface of the tape or paint, which is its true temperature. The ratio of the distance to the spot, the optical system of the infrared thermometer collects energy from the circular measurement spot and concentrates it on the detector, and the optical resolution is defined as the ratio of the distance from the infrared thermometer to the object to the size of the measured spot ( D:S). The larger the ratio, the better the resolution of the infrared thermometer, and the smaller the measured spot size. Laser aiming, as long as it is used to assist aiming the infrared thermometer on the measurement point. The improvement of infrared optics is to increase the near-focus characteristics, which can provide accurate measurement of small target areas, and can also avoid the influence of background temperature. The field of view ensures that the target is larger than the spot size measured by the infrared thermometer. The smaller the target, the closer it should be. When the accuracy is very important, it is necessary to ensure that the target is at least 2 times the spot size.
