An outside line sensor is a type of sensor that can convert ultraviolet signals into measurable electrical signals.

Ultraviolet sensor is a kind of sensor, which can use the photosensitive element to convert the ultraviolet signal into a measurable electrical signal through photovoltaic mode and light guide mode. The earliest ultraviolet sensors were based on pure silicon, but according to the instructions of the National Institute of Standards and Technology, pure silicon diodes also respond to visible light and form originally unnecessary electrical signals, resulting in low accuracy. The accuracy of GaN's UV sensor is much higher than that of single crystal silicon, making it the most commonly used UV sensor material.

Ultraviolet sensor is a sensor that uses a light-sensitive element to convert ultraviolet signals into electrical signals. Its working mode is usually divided into two categories: photovoltaic mode and light guide mode. Picture: The so-called photovoltaic mode means that there is no need to connect batteries in series, there is current in the series resistance, and the sensor is equivalent to a small battery with an output voltage, but it is difficult to make and the cost is relatively high; the light guide mode means that a battery needs to be connected in series to work It is equivalent to a resistor. The resistance value changes with the intensity of light. This kind of manufacturing is easy and the cost is low.