What is a diode array detector, the basic structure, advantages and disadvantages, working principles, applications, classifications, operating procedures, and development history of a diode array detector 2

Disadvantages:

1. Higher cost: Compared to other commonly used optical detectors, diode array detectors are more expensive.

2. Channel Limitation: Since each channel requires a diode, the number of diodes limits the increase in channel count.diode

3. Working Principle:

The working principle of a diode array detector is based on the photoelectric effect. When light shines on the diode, the energy of photons is converted into the energy of electrons, generating an electric current in the diode. This current signal is amplified and converted into a digital signal, which is then processed and analyzed by a computer. Light of different wavelengths can be detected and recorded by different diodes.

IV. Application: diode

The diode array detector is widely used in spectroscopic measurements in analytical chemistry, such as infrared spectroscopy, ultraviolet spectroscopy, and fluorescence spectroscopy. It can be employed to analyze the composition, concentration, mass, and reaction kinetics of substances.diode