UV Sensor
A UV sensor is an excellent addition to your arsenal of weather sensors. A UV radiation sensor is useful for persons who want to reduce their exposure to UV radiation, but it is also required in specific testing situations. A UV light sensor is a useful tool for organizations that manufacture items that are sensitive to UV light.The UV index sensor from Davis Instruments measures the sunburning portion of the UV spectrum. It measures global solar UV irradiance, which is the sum of solar UV components transmitted directly and those scattered in the atmosphere. It displays the UV index, dose rate, and daily and cumulative UV light doses. This sensor complements the Vantage Pro2 weather station perfectly. It can also be deployed on a Sensor Transmitter, which reports to a WeatherLink Live, or in an EnviroMonitor Node, which reports to an EnviroMonitor Gateway.
How does a UV sensor work?
The sensor captures UV light and transforms it to an electrical signal. There are two types of light sensors. The first uses a photodiode, whereas the second uses a photoresistor.
Photodiode-type UV sensor
Illuminance is measured by a photodiode-type UV sensor. When light strikes the photodiode, it energizes the electrons, resulting in an electric current. In reaction to more light, the electric current will get stronger. The electrical current can then be measured and converted into a digital or analog output.Photo-resistor UV sensor
A photo-resistor UV sensor measures a change in resistance produced by the available light. These sensors are less accurate than photodiode-based sensors and are typically limited to situations where the only information required is whether the light is on or off. They can also be used to compare the relative levels of light in a room.Why Davis Instruments' UV sensor?
The UV light sensor on Davis instruments uses photodiode technology, which provides a more accurate picture of the UV light present. The technology employed in photodiodes is similar to that utilized in solar panels. It is also the most beneficial for scientific applications where precision and sensitivity are critical.
What is a UV sensor made of?
The UV index sensor uses a hermetically sealed silicon photodiode. Silicon is the material of choice for applications that require sensitivity and stability. Silicon is also quick to respond and efficient in collecting the charge created on the diode's surface when light strikes it.
Photodiode technology is evolving in response to issues in the solar panel industry, and sensor technology will benefit from these advancements as well. Davis Instruments stays up with these changes and works to provide the most advanced systems and cutting-edge technology in its UV detectors. Davis Instruments' UV sensors will provide many years of precise data collecting, whether used in a weather station or as part of a manufacturing process.