The General Principles and Applications of Infrared Thermometers
The temperature measurement of an infrared thermometer is based on the Planck radiation law. By measuring the infrared radiation energy of the measured target and calibrating it with a blackbody, the temperature of the measured target is determined. The infrared thermometer has the characteristics of non-contact measurement, fast response speed, and no disturbance to the temperature distribution field of the measured target. For temperature measurement of targets that cannot be measured through contact, moving targets, and targets with rapid temperature changes, infrared thermometers have their unique effects. It provides a new measurement method for the development of modern temperature measurement technology.
Elements for selecting an infrared thermometer: working principle, technical specifications, environmental working conditions, operation and maintenance, etc
The components of an infrared thermometer include optical system, photodetector, signal amplifier and signal processing, display output, etc
Application fields of infrared thermometers
Compared with traditional temperature measurement equipment, infrared testers have the advantages of convenience, reliability, and precision. Due to its many advantages, the application range of infrared thermometers is very wide. The introduction is as follows:
Iron and Steel
The use of an infrared thermometer can continuously measure the overall temperature of the regenerator and the efficiency of the heater. Measure the temperature on both sides of the steel plate to determine if the heating is uniform. Improve product quality
Second glass industry
Test the temperature of the furnace to ensure that the temperature from edge to edge of the glass is consistent and the glass surface is flat. Thus: improving product yield, improving process control, enhancing product consistency, and reducing downtime
Three plastic industries
Blow molded film pressing: * * Temperature testing can ensure the uniform layering and embossing treatment of the plastic's tensile strength and thickness: Use an infrared thermometer to monitor the film temperature and control the heater
Four heating, ventilation, and refrigeration
Using an infrared thermometer: scan room temperature, check pipeline temperature, test boiler temperature, evaluate boiler performance, monitor supply and return air circuits
Five supermarkets or food processing enterprises
Because the storage temperature of refrigerated food is generally below 4.4 ℃, exceeding this range may lead to spoilage. So, an infrared thermometer can be used for convenient and fast inspection
Other applications include: grain processing, food processing, aquatic product processing, alcoholic beverage production enterprises, inspection and quarantine departments, etc
