Application Analysis of Ultraviolet Sensor in Ultraviolet Illuminance Meter
Speaking of "ultraviolet rays", I believe everyone is familiar with them, especially girls who pay great attention to sun protection, and the anti-ultraviolet rays are among them. The ultraviolet sensor can be widely used in ultraviolet intensity detection, ultraviolet index detection, and can also be used in ultraviolet disinfection and ultraviolet curing, ultraviolet flame detector and so on.
The UV sensor is a device that converts UV signals into measurable electrical signals through photovoltaic mode and converts photoconductive mode into photoconductive mode using photosensitive elements. Early UV sensors were based on pure silicon, but according to the National Institute of Standards and Technology, simple silicon diodes also respond to visible light, generating unwanted electrical signals and resulting in low accuracy.
Ultraviolet rays have short wavelengths and high energy, and the key factor for ultraviolet disinfection is the intensity of ultraviolet rays radiated by ultraviolet disinfection lamps at a wavelength of 253.7 nanometers, because this band is the strongest and can kill bacteria. Ultraviolet rays in the UVC band can destroy DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in microbial cells (bacteria, viruses, spores, etc.), molecular structure, cells cannot regenerate, and bacteria and viruses lose the ability to replicate themselves. Therefore, ultraviolet sensor products Can be widely used in water disinfection, such as water. And due to the small size of the UV sensor and other advantages, UV-LEDs can be used as a source for complete UV (ultraviolet) sterilization equipment.
The use of ultraviolet disinfection in hospitals is also relatively common, but due to the influence of factors such as production methods and irradiation time of ultraviolet irradiation lamps, it is difficult for ultraviolet radiation to reach the standard sterilization intensity. The irradiance meter is used to detect the intensity of ultraviolet rays to ensure that the intensity of ultraviolet rays can kill bacteria. OFweek Mall recommends using GUVC-T10GD-L
UV sensor (UV sensor) GUVC-T10GD-L is a product with a large photosensitive area, and the main detection range is 254nm. The sensor is housed in a TO-46 metal case. The area of the photosensitive chip is 1.536mm2. The output of the ultraviolet sensor is mainly related to the responsivity, the photosensitive area of the sensor and the light intensity, so products with a large photosensitive area can detect weak ultraviolet radiation. Mainly used for near-distance flame monitoring (in dark environments) and disinfection equipment.
