How is the UV wavelength determines?

UV wavelength describes how long the wavelength of a certain light range is and is measured either in nanometers (nm) or electron volts (EV). People are unable to see UV light. UV wavelength is a type of electromagnetic radiation that has a shorter wavelength than a visible light. The name UV wavelength is short for the ultraviolet wavelength. This name is based on the fact that the color with the highest frequency human is still visible, it is purple and ultraviolet light is over the human eye is undetectable.

The most commonly known type of UV light comes from the sun and black light found in stores. When the UV wavelength hit certain materials, it causes a chemical reaction and seems to shine. UV radiation can be useful and harmful to humans. Although vitamin D can provide that people must be healthy, it can also cause painful burning. They are not only unpleasant, but they can eventually lead to skin cancer.

There are several ways to detect UV light. Uv lightIt covers a wide range of 10 nm to 400 nm and there are different tools for detecting different parts of the spectrum. Near the UV detectors, there are devices that can pick up the UV wavelength in the range of 200 nm to 400 nm. The devices such as a photodiode convert light to a current that can be detected. UV light can then be expressed in electric volts from 3ev to 124 ev.

other tools such as photocathodes, produce electrons emissions when hit by light. They will respond to UV light and then can be explored to determine the amount of light affected by the tool. Another type of detector, known as a vacuum UV detector, can block other light sources to try and pick up only UV light.

There are problems with each of these tools. Although they may try to reduce the amount of visible light detected by the tool, they can easily be contaminated by other light sources. DeviceThey pick up all light, not just UV light. This makes it more difficult to determine how much light is UV light and how much is natural or other type.