UV-C处理

要想控制辐射的同时确保全面消杀，可使用精密的UV-C传感器来监测剂量。无论光源效能如何变化，都可保障消杀效果。消杀时间和所用剂量也进行了优化，可以防止辐射过量，尽可能减少能源浪费，减缓产品老化速度，并减少暴露材料承受的压力。通过主动跟踪检测UV光源老化情况，可实现状况监测和预测性维护。

在有人区域安装不可见的UV-C时，艾迈斯欧司朗成熟完善的占位监测、篡改/偏差检测或智能门禁解决方案可作为支持性安全措施，实现上层空气、主动光幕或整个房间的净化。 

首先，占位监测以1D直接飞行时间(dToF)为基础，经济高效，可扫描室内消杀过程中不应暴露的任何移动或静态物体。如果出现意外占位情况，可以选择性拦截或中断服务。第二，主动检测UV-C光源模块位置和朝向、监测传感器或防护盖的变化。第三，在消杀或设备维护期间，智能生物识别门禁可用于跟踪确保未经培训或授权的人员均不在场。

The sun emits optical radiation in form of visible and invisible light. We humans define light as what we can see from the visible spectrum of light, that is, the wavelength between violet (400nm) and dark red (800nm). For the use of light against viruses and germs, the focus is on the range below 400 nanometers, the so-called UV radiation. UV light is divided intro three ranges: UV-A, UV-B and UV-C. The wavelength decreases progressively from 400 to 100 nanometers.

Category A ultraviolet sunlight reaches the earth almost unfiltered. UV-A radiation penetrates deep into our skin and causes it to age. UV-B light reaches our upper skin layers and is responsible for sunburn. The short-wave, particularly high-energy UV-C radiation from the sun, on the other hand, is completely absorbed by or ozone layer. There is therefore no natural UV-C radiation on earth. Life on earth has thus developed without being exposed to UV-C radiation. In other words: There was simply no need to develop natural defense mechanisms against UV-C light. This opens special possibilities for science, medicine and technology.

UV-C photons with a wavelength of 200 to 280 nanometers have sufficient energy to alter microbial DNA meaning the exposure to the electromagnetic radiation modifies the genetic material of microorganisms and disrupts their ability to reproduce. As UV-C radiation attacks the helix structure of DNA and RNA it is also effective to inactivate multi-resistant pathogens.

For the use of light to inactivate pathogens, the focus is on invisible light below 400 nanometers, the so-called UV radiation, in particular the Category C ultraviolet light. Although both UV-B and UV-C can harm cells and hence have the capability for sanitization, the extent of the molecular rearrangement of the DNA / RNA by these two radiations is very dissimilar. The shorter the wavelength as more effectively light can penetrate the cells of Microorganisms, therefore UV-C is more suitable to neutralize pathogens. UV-C radiation triggers a photochemical reaction. Depending on the doses of the absorbed UV-C light it modifies the DNA / RNA helix strands by thymine dimer formation, disrupting the pathogen’s capability to replicate and render it harmless.