Memahami yang bekerja prinsip dari kecepatan tinggi inframerah termometer
Itu kecepatan tinggi inframerah termometer terdiri dari an optik sistem% 2c a fotodetektor% 2c a sinyal penguat% 2c sinyal pemrosesan% 2c tampilan output% 2c dan lainnya komponen. The kecepatan tinggi inframerah termometer tindakan inframerah radiasi energi melalui inframerah detektor (termal dan fotolistrik detektor) dan mengubah menjadi listrik sinyal% 2c yang mana adalah kemudian dikonversi menjadi suhu sesuai ke dasar hukum dari radiasi.
The optical system gathers the infrared radiation energy of the target within its field of view, and the size of the field of view is determined by the optical components and position of the thermometer. Infrared energy is focused on the photoelectric detector and converted into corresponding electrical signals. The signal is converted into the temperature value of the measured target after being calculated by the amplifier and signal processing circuit according to the internal algorithm of the instrument and corrected for target emissivity. In addition, the environmental conditions of the target and thermometer, such as temperature, atmosphere, pollution, and interference, should also be considered for their impact on performance indikator dan koreksi metode.
The high-speed infrared thermometer is used to measure the surface temperature of objects. The energy emitted, reflected, and transmitted by the optical components of the thermometer converges on the detector. The electronic components of the thermometer convert this information into temperature readings and display them on the display panel of the thermometer. The temperature displayed by an infrared thermometer is often referred to as the brightness temperature of the target, which differs from the actual temperature of the object because the emissivity of the object has a certain impact on radiation temperature measurement. Almost all actual objects present in nature are not black bodies. The radiation amount of all actual objects is not only dependent on the wavelength of radiation and the temperature of the object, but also on factors such as the type of material, preparation method, thermal process, surface state, and environmental conditions that make up the object. Therefore, in order for the blackbody radiation law to apply to all practical objects, it is necessary to introduce a proportional coefficient related to material properties and surface states, namely emissivity. This coefficient represents the proximity between the thermal radiation of the actual object and the blackbody radiation, with a value between 0 and 1. According to the law of radiation, as long as the emissivity of a material is known, the infrared radiation characteristics of any object are known
