El ratio de la medición distancia de el termómetro a el medido objetivo
El óptico sistema de el infrarrojo termómetro recoge energía de a circular medir spot and focuses it on the detector. the optical resolution is defined as the ratio (D:S) of the distance from the infrared thermometer to the object to the measured spot size. The larger the ratio, the better the resolution of the infrared thermometer and the smaller the measured spot size. Laser aiming, only to aid in aiming at the midiendo punto. A reciente mejora en infrarrojo óptica es la adición de un enfoque cercano característica, que proporciona mediciones en pequeño objetivo áreas y es inmune a fondo temperatura efectos.
Infrarrojo termómetros recibir invisible infrarrojo energía emitido por varios objetos ellos mismos. Infrarrojo radiación es parte de el electromagnético espectro, que incluye radio ondas, microondas, visible luz, ultravioleta, R-rayos, y rayos X. Infrarrojo es entre visible luz y radio ondas. Infrarrojo longitudes son comúnmente expresados en micrones, y el rango de longitud de onda es es 0.7 micrones to 1000 micrones. In hecho, The 0.7 Micrones to 14 Micrones band is used for Infrared termómetros.
Infrarrojo termómetros son ligeros, pequeños, fácil a uso, y pueden confiablemente medir caliente, peligroso, o objetos difíciles detrás sin contaminantes o dañadores el objeto ser medido.
Infrared thermometers can be divided into single-color thermometers and two-color thermometers (radiation colorimetric thermometers) according to the principle. For a monochromatic thermometer, when measuring temperature, the area of the target to be measured should fill the field of view of the thermometer. It is recommended that the measured target size exceed 50 percent of the field of view. If the target size is smaller than the field of view, the background radiation energy will enter the visual and acoustic symbols of the thermometer and interfere with the temperature measurement readings, causing errors. Conversely, if the target is larger than the pyrometer's field of view, the pyrometer will not be affected by background outside the measurement area. For colorimetric thermometers, the temperature is determined by the ratio of radiant energy in two independent wavelength bands. Therefore, when the target to be measured is small, does not fill the field of view, and there are smoke, dust, and obstructions on the measurement path, which attenuate the radiation energy, it will not have a significant impact on the measurement results. For small and moving or vibrating targets, the colorimetric thermometer is the best choice. This is due to the small diameter of the light rays and their flexibility to transport light radiant energy over curved, blocked and folded channels.
