Infracrveno svjetlo (infracrveno) is a kind of light wave, which is invisible light between visible light and microwave in the electromagnetic spectrum. Its essence is thermal radiation, and its radiation frequency is lower than visible light and higher than microwave. All objects above absolute zero radiate energy in the in in band, and hot objects emit more infrared radiation than cold objects.
Accord to the generacija mehanizam of infracrveno zračenje, the application and development of infracrveno zračenje, and considering the transmission karakteristike of infracrveno radiation in the earth's atmosphere, people divide infracrven rays in different wave bands into near infrared, short wave infrared, medium wave infrared, long wave infrared, etc. different regions. Long-wave infrared is a band of infracrven radiation with a frekvencija raspon između 7,5 i 14 mikrona, odgovarajući to a frekvencija raspon of 20THz to 40THz.
2. Što are the application fields of LWIR?
Dugoval infracrveno has a strong penetrating ability, and its penetration depth is much deeper than that of of medium-wave infracrveni and kratki val infracrveni. It can observe ground objects through clouds, haze, rain and snow and other weather conditions. The follow are some application fields of long-wave infrared:
①Application in the field of science and technology
Dugovalni infracrveni has a široko raspon of primjene in the field of science and technology, uključujući drones, satellites, missile navigation, meteorology, fire monitoring, building thermal efficiency assessment, night vision equipment, security monitoring, etc. Among them, the most common used application field is security monitoring. Dugovalno infracrveno termalno snimanje kamere can be korišteno za za daljinski monitoring at night or in low-light environments to detect heat, so as to achieve the effect of monitoring target objects. Military, security and emergency services that support local government regulation are also important areas of LWIR technology application
In addition, the temperature distribution on the surface of an object can be measured using long-wave infrared imaging technology, thereby realizing thermal imaging detection. This technology is widely used in fault detection, energy management and environmental monitoring in the fields of machinery manufacturing, electrical and electronic, and construction engineering.
②Application in medical field
In terms of medicinski imaging, long-wave infracrvena imaging tehnologija can be used for imaging of skin tissue and detection of lesions, such as early diagnosis and treatment monitoring of breast cancer, detection and diagnosis of skin cancer and other skin diseases, i evaluation of Burnt Tissue vitality. Since the long-wave infracrven imaging technology does not need to touch the skin, it can perform neinvazivno imaging on the human body, so it has the advantages of being bezbolni and neopasni.