Infrared thermometer measurement standards and applications
The application possibilities of different thermometers are extremely wide, and the significant decrease in prices in recent years has opened up more and more application fields, especially in low-temperature areas or to replace traditional thermometers. The following example is an overview of usage and solutions.
1. Concrete processing industry
During concrete processing, temperature plays a crucial role in determining the setting time and the resulting strength, especially for concrete. When the processing temperature reaches a certain level, the contact probe will be mechanically damaged quickly due to the corrosive effect of cement. And the thermometer can directly receive the temperature of the mixing drum, which is also the temperature at the concrete outlet. Due to the quality inspection requirements of ISO9000, the temperature must be recorded in the form of a file along with other production parameters. When used in dirty and messy industrial environments, it needs to be very sturdy, such as dustproof and waterproof measuring lenses. To protect the thermometer, appropriate accessories such as axial gap nozzles, lens protection covers, and insulation pipes are used.
2. Paper industry
In the refining process of the paper industry, the paper track will run between a heated metal roller and a precision press roller coated with a plastic layer. If the width of the paper is less than the width of the roller, the temperature at the edge of the precision press roller will be significantly higher than that in the middle. The temperature difference between the middle and the edge cannot exceed the predetermined temperature, otherwise the plastic coating will be damaged.
In order to measure temperature, each rack can be equipped with three fixed thermometers, or a thermometer can be moved along the length of the rolling mill on the sight device. Due to the strong local steam, a waterproof thermometer and a nozzle with axial clearance are needed for free blowing of the window. As temperature processing requires an SPS machine, a typical instrument with emissivity correction is sufficient.
Ceramic industry
In order to produce ceramic materials, it is necessary to know the temperature change process during the combustion process in order to achieve the same quality of products and avoid the generation of waste. At the same time, in order to save energy, it is necessary to control the temperature within the minimum value. Until now, temperature measurement has been used with a thermometer, which obtains room temperature. This thermometer has the advantage of directly measuring the surface temperature of objects, and it can accurately measure and maintain the combustion temperature in a very short time.
4. Metallurgical industry
In the metallurgical industry, infrared temperature measurement is applied in various fields. For example, diagnosis of inner wall defects in various furnace bodies, diagnosis of cooling wall damage, control of process parameters, and so on. Infrared temperature measurement can accurately monitor the condition of equipment, improve its service life, save energy, reduce costs, and improve product quality
