UV sensor, also known as UV sensor, UV curing machine is a mechanical device that emits strong ultraviolet rays. At present, it has been widely used in printing, electronics, building materials, machinery and other industries. The type and style of UV curing machine equipped with UV sensor depends on the cured product, but its ultimate purpose is to cure UV paint or UV ink. The UV curing device consists of five parts: light source system, ventilation system, control system, transmission system and box.The difference of UV light source system also determines the use of UV sensor (UV sensor) to monitor the intensity of its light source. At present, some UV curing machines commonly used in the market use UV mercury lamps in the printing industry, printing industry and shoemaking industry.In the spraying industry, UV curing is available in PCB, LCD industrial process polishing and other fields. When this light source is used, a lot of heat will be generated. It will raise the temperature near the lamp, which can generally reach about 100 ℃. At present, the substrates of ultraviolet sensors (UV sensors) are roughly divided into Gan, SiC and gap. The temperature of the sensor on GaN substrate can not exceed 85 ℃, and the temperature range of gap substrate is within about 125 ℃. The temperature resistance of SiC sensor can reach 170 ℃.

Application of ultraviolet sensor (UV sensor) in photo resin hardening:UV curing resin is mainly composed of oligomer, crosslinking agent, diluent, photosensitizer and other specific additives. The polymer resin is irradiated with ultraviolet light to cure the crosslinking reaction instantly. Under the UV LED curing lamp, the curing time of UV curing resin does not need 10 seconds and can be cured in 1.2 seconds, which is much faster than the traditional UV mercury curing machine. At the same time, the heat is also better than ultraviolet mercury lamp. By mixing different components of UV curable resin, products meeting different requirements and uses can be obtained.At present, UV curing resin of UV sensor (UV sensor) is mainly used for wood floor coating, plastic coating (such as PVC decorative board), photosensitive ink (such as plastic bag printing), electronic product coating (marking and circuit board printing), printing polishing (such as paper and card glazing), coating of metal parts (such as motorcycle parts), optical fiber coating Photoresist and precision parts coating, etc. OFweek mall technicians recommend the following ultraviolet sensors (UV sensors) for curing operation:

Korea genicom UV sensor-guva-t11gd specificationSpectral detection range: 220-370nmActive area: 0.076mm2

Response: 0.18a/wDark current: 1NAPhotocurrent: 145 ~ 177na UVA lamp, 1MW / cm2

Sensitivity: 0.1uw/cm2Korea genicom UV sensor - guva-t11gd-l characteristics:-Chip size 1.4mm, to 46 package

-Gallium nitride material-Schottky photodiode-Good visual blindness

-Photovoltaic mode operation-High response, low dark currentRelevant sensor classification:

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