A method and device for detecting the effect of ultraviolet rays on killing bacteria

Abstract

The invention discloses a method and a device for detecting the effect of ultraviolet radiation on killing bacteria. The method comprises the following steps: firstly, obtaining the relationship between the ultraviolet radiation intensity, the ultraviolet radiation time and the bacteria killing rate; then, detecting the ultraviolet radiation intensity; Third, according to the ultraviolet irradiation intensity and the set irradiation time, the killing rate of bacteria is obtained. The device includes an ultraviolet intensity detection device, a time setting device and a sterilization rate calculation module. The invention can ensure the effectiveness of ultraviolet disinfection equipment to kill bacteria, especially Staphylococcus aureus, so that the sterilization process that cannot observe the effect originally has evaluation standards and control means, and can also avoid continued consumption after all Staphylococcus aureus is killed Energy, increasing the practicability of ultraviolet disinfection equipment.

Description

technical field [0001] The patent of the present invention relates to a method for detecting bactericidal effect, in particular to a method and device for detecting the effect of ultraviolet rays on killing bacteria. Background technique [0002] As we all know, ultraviolet rays have a sterilizing function, such as using UV-C wavelengths (200-280nm) in ultraviolet rays (wavelength range 380nm-200nm) to damage microorganisms and destroy nucleic acids to kill microorganisms, thereby achieving a bactericidal effect. In modern life, products such as disinfection lamps and disinfection cabinets that use ultraviolet rays for sterilization and disinfection have appeared. However, the ultraviolet lamps of these products have a service life. With the prolongation of the use time, the lamps will gradually age, and the light intensity will lose 30%-50%. When the ultraviolet light intensity does not reach the national disinfection standard of 300J / cm2 , Microorganisms will appear photo...

AI Technical Summary

Problems solved by technology

The usual way of killing Staphylococcus aureus is ultraviolet disinfection. The existing detection of the sterilization effect of various disinfection products, especially the real-time killing effect of Staphylococcus aureus, has not yet been realized by using sensor photoelectric methods. Disinfection lamps, disinfection Disinfection facilities such as cabinets have never clearly marked the degree to which various bacteria such as Staphylococcus aureus are killed, which may lead to misunderstandings in disinfection work

Because the method of detecting the disinfection effect is not accurate enough, many misunderstandings have occurred in the use of ultraviolet disinfection facilities. For example, after the ultraviolet disinfection lamp is aged, it is still disinfected according to the normal disinfection steps, resulting in insufficient sterilization and the continued spread of pathogens.

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