July 14, 2020

Principle of ultraviolet lamp killing new coronavirus

The principle of ultraviolet lamp killing new coronavirus
The new coronavirus is an RNA virus with a corona shape. The main substance of the new coronavirus is protein, and its uneven surface is regularly arranged. We use an ultraviolet lamp to penetrate the surface of the new coronavirus and penetrate inside to destroy different types of nitrogenous bases in nucleic acids.
There are two types of UV lamps that are more effective for new coronaviruses: 1. UV-C type UV sterilization lamp with a wavelength of 253.7 nm 2. Ozone UV lamp with a wavelength of 185 nm. They have the characteristics of high efficiency and high intensity of work, which can directly kill pathogens and prevent the spread of new coronavirus in the air and droplets. After a period of ultraviolet radiation, the permeability of the new coronavirus changes, and the cells exhibit growth or regenerative death.
Four, use UV dosimeter to detect the intensity of ultraviolet germicidal lamp .
The choice of ultraviolet germicidal lamp is mainly based on ultraviolet wavelength and ultraviolet intensity, and professionals will use ultraviolet radiation illuminance meter to detect. The ultraviolet radiation illuminance meter has a wide spectrum, is not easily interfered by other light rays and other rays, and has strong stability. In the actual measurement, no other protective equipment is required, and it has high safety.
To detect the intensity of the ultraviolet germicidal lamp with an ultraviolet radiation illuminance meter, it is necessary to ensure that the probe corresponds to the instrument one by one, and the ambient temperature cannot be too high or too wet. Correct and reasonable operation can ensure the authenticity of the data.