For the four bands of ultraviolet light, apply the corresponding band of ultraviolet sensor analysis

The ultraviolet sensor is a kind of sensor, which can convert the ultraviolet signal into a measurable electric signal through the photovoltaic mode and the light guide mode by using the photosensitive element. Currently, the ultraviolet sensor material is mainly GaN and SiC.

The GaN sensor is currently known as the UV sensor of Genicom in Korea. The sensor band has a corresponding sensor from 200-510nm.

For the UVA band, there are mainly sensors for IIC, current, and voltage output. GUVA-C32SM or GUVA-S12SD (SMD3528 package) can be used in smart wear and some places where the sensor size is as small as possible or the PCB size is relatively small.

For some places requiring high temperature stability, there are metal TO-46 (GUVA-T11GD-L), TO-39 (GUVA-T21GD-U), TO-5 (GUVA-T21GH) package products. The TO-5 package integrates an operational amplifier circuit and a 0-5V analog output. easy to use. Mainly used in the detection of UVA lamps, UV curing, etc.

UVB sensors are mainly used to detect B-band LED lights, skin phototherapy devices and UVI detection. The UVI index is mainly for the B-band UV. The main models used are GUVB-C31SM (IIC output), GUVB-T11GD-L (current output), and GUVB-T21GH (0-5V output).

Due to its sun-blind nature, UVC sensors can be used for flame detection in addition to UV disinfection monitoring. The precondition for flame detection is that the sensor can detect ultraviolet rays with very low radiation intensity, and the dark current of the sensor must be very low, so that the SiC sensor can meet the demand. The current high-known UV sensor is GENICOM, which is produced by Korea GE-COM- The S12SD, GUVA-S12SD is available in a SMD package (SMD3528), making it ideal for small form factor devices. The sensor output current is proportional to the light intensity and the product output has a very high consistency. The sensor has a specific spectral response. The product is mainly for UV measurement in sunlight and UVA lamp intensity measurement, especially for UVI detection. Specific products and specifications can be downloaded from related websites.