UV, RI, PDA Detector principles ?
- UV-Ultraviolet
- RI-Refractive index
- PDA-Photo diode
Ultraviolet (UV) :
- Electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.
Refractive index :
- The refractive index, also known as the index of refraction, is defined as the ratio of the velocity of light in vacuum (or air) to its velocity in a transparent medium.
PDA – Photo Diode :
- A photodiode is a semiconductor device that converts light into an electrical current. The current is generated when photons are absorbed in the photodiode. Photodiodes may contain optical filters, built-in lenses, and may have large or small surface areas.