Learn about the principles and application scope of infrared thermometers.
Infrared thermometers are widely used in power systems, mainly for long-distance temperature measurement of joints on power transmission and transformation lines and electrical equipment in substations. They can also be applied to non-contact surface temperature measurement of various objects in other industries.
Operating Principle of Infrared Thermometers
The temperature measurement principle of an infrared thermometer is to convert the radiant energy of infrared rays emitted by an object (such as molten steel) into an electrical signal. The magnitude of the infrared radiant energy corresponds to the temperature of the object itself. The temperature of the object can be determined according to the intensity of the converted electrical signal.
Classification of Infrared Thermometers
Infrared thermometers fall into two categories: handheld infrared thermometers and online infrared thermometers. Long-distance infrared thermometers are temperature measuring instruments capable of measuring the temperature of small targets from a remote distance.
Handheld Infrared Thermometer
The working principle is to convert the radiant energy of infrared rays emitted by an object into an electrical signal. The magnitude of the infrared radiant energy corresponds to the temperature of the object itself, and the temperature of the object (such as molten steel) can be determined based on the intensity of the converted electrical signal.A handheld infrared thermometer consists of an optical system, a photoelectric detector, a signal amplifier, signal processing unit, display and output components, etc.Handheld infrared thermometers are convenient, and are widely used in medical treatment and equipment fault diagnosis.When selecting an infrared thermometer, factors such as performance indicators (temperature range, spot size, operating wavelength, measurement accuracy, response time, etc.), ease of use, maintenance and calibration performance, and price should be considered.
Online Infrared Thermometer
Online infrared thermometers are effective tools for detecting and diagnosing faults in electronic equipment. There are various types of fixed infrared thermometers, and different series play important roles in their respective applicable industries.The main performance indicators of fixed infrared thermometers include spectral response, response time, repeatability, and emissivity, etc.Fixed infrared thermometers are used in the glass and ceramics industry, paper and packaging industry, various kiln temperature measurement applications, and the chemical industry to measure the temperature of instruments and meters, so as to monitor their operating status and ensure their normal operation.
