Arbetsprincipen för tandborstesterilisator

Tandborststerilisatorn använder ultravioletta strålar för att sterilisera. Den använder en ultraviolett lampa med kall katod, som kan avge ultravioletta strålar med en våglängd på 253,7 nm. Den exciteras av lågt kvicksilverångtryck (< 10-2="" pa)="" and="" emits="" uv="" light="" waves.="" there="" are="" mainly="" two="" emission="" lines:="" one="" is="" 253.7nm,="" which="" can="" make="" deoxyribonucleic="" acid="" (dna),="" ribonucleic="" acid="" (rna)="" and="" nuclear="" protein="" in="" bacteria="" absorb="" ultraviolet="" rays.="" after="" the="" bacteria="" absorb="" ultraviolet="" rays,="" it="" causes="" dna="" strand="" breakage,="" causes="" cross-linking="" rupture="" of="" nucleic="" acids="" and="" proteins,="" kills="" the="" biological="" activity="" of="" nucleic="" acids,="" and="" causes="" bacterial="" death.;="" the="" other="" is="" 185nm.="" ultraviolet="" rays="" of="" this="" wavelength="" are="" used="" for="" high="" vacuum="" sterilization.="" vacuum="" ultraviolet="" rays="" can="" ionize="" oxygen="" in="" the="" air="" to="" produce="" ozone,="" so="" as="" to="" achieve="" the="" purpose="" of="" purifying="" the="" air.="" the="" dispersion="" of="" ozone="" can="" just="" make="" up="" for="" the="" shortcomings="" of="" ultraviolet="" rays="" only="" propagating="" along="" a="" straight="" line="" and="" disinfection="" has="" dead="">