Understanding the Principle and Application Scope of Infrared Thermometers
There are two types of infrared thermometers: 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 long range.
Handheld Infrared Thermometers The working principle of a handheld infrared thermometer is to convert the radiant energy of infrared rays emitted by an object into an electrical signal. The magnitude of infrared radiant energy corresponds to the temperature of the object itself. The temperature of the object (such as molten steel) can be determined according to the magnitude of the converted electrical signal. A handheld infrared thermometer consists of an optical system, photoelectric detector, signal amplifier, signal processing unit, display and output module. Handheld infrared thermometers are convenient, safe and portable, and are widely used in medical treatment and equipment fault diagnosis. When purchasing an infrared thermometer, users should pay attention to performance indicators (such as temperature range, spot size, operating wavelength, measurement accuracy, response time, etc.), ease of use, maintainability, calibration performance and price.
Online Infrared Thermometers Online infrared thermometers serve as effective tools for detecting and diagnosing faults of electronic equipment. There are many varieties of fixed infrared thermometers, and different series play an important role in their respective applicable industries. The main performance indicators of fixed infrared thermometers include spectral response, response time, repeatability and emissivity. Fixed infrared thermometers are applied in the glass and ceramic industries, paper-making and packaging industries, various kiln temperature measurement scenarios, and the chemical industry. They measure the temperature of instruments and meters to detect their operating status and ensure normal operation.
