What are the main parts of the handheld infrared thermometer
Temperature is a very important thermal parameter in the industrial production process, which directly affects the quality and performance of products. The title of the non-contact handheld infrared thermometer and the traditional contact instrumentation, compared with its ease of use, fast response, high sensitivity, wide temperature range, non-contact online continuous measurement can be achieved. While the traditional contact temperature measurement instrument, it needs to exchange heat with the measured substance, and it takes a period of time to reach thermal equilibrium, so there is a hysteresis phenomenon in temperature measurement.
Its structure mainly consists of photoelectric detector, optical system, signal amplifier and signal processing, display output and other components.
The principle of handheld infrared thermometer
Infrared thermometer to measure the target temperature, the first measured is the target temperature in its band range of infrared radiation, followed by the thermometer to calculate the measured target temperature. The process is its optical system convergence of its field of view of the target infrared radiation energy, infrared radiation energy focused on the photodetector converted to the corresponding electrical signals, this signal will pass through the signal amplifier and signal processing circuits, and ultimately, according to the algorithms within the hand-held infrared thermometer and the target emissivity correction converted to the actual value of the temperature of the object to be measured.
Infrared thermometer selection principles; first of all, to clarify the requirements of temperature measurement, such as the temperature range, accuracy, the size of the object to be measured, the measurement distance, the target surface emissivity of the measured object, the object to be measured in the working environment and the corresponding speed. Secondly, in the many infrared thermometer to select the non-contact thermometer suitable for the requirements. Finally, in order to meet the above requirements at the same time, select the best performance, functionality, price, additional is to consider the ease of use, post maintenance, calibration performance.
