? ? ? ? ? ? ? ? ? ? ? ? EL detectors are mainly divided into the following types:
1. Fluorescence lifetime detector: This detector is mainly used to measure the lifetime of fluorescent materials. Its principle is to use a high-precision pulse generator to excite the sample and generate fluorescence, and then measure the change in fluorescence intensity over time through a high-speed photodetector.

2. Transmission spectrum detector: This type of detector is mainly used to measure the transmission spectrum and reflection spectrum of samples. Its principle is to use a monochromator to divide the light transmitted or reflected by the sample into beams of different wavelengths, and then measure the intensity of each wavelength through a photomultiplier tube.

EL detector
3. Raman spectrometer: This detector is mainly used to measure the Raman scattering spectrum of samples. Its principle is to excite the sample with laser and generate Raman scattering. Then, the scattered light is divided into different wavelength beams by a monochromator, and the intensity of each wavelength is measured by a photomultiplier tube.

4. Infrared spectrum detector: This detector is mainly used to measure the infrared spectrum of samples. Its principle is to use a Michelson interferometer to divide the transmitted or reflected light of the sample into different wavelength beams, and then measure the light intensity of each wavelength through a thermocouple.
EL detector

5. X-ray diffractometer: This type of detector is mainly used to measure the crystal structure and phase composition of samples. Its principle is to use an X-ray generator to emit X-rays and irradiate the sample, and then measure the diffraction angle and diffraction intensity through a detector.

The above are the main types and principlesof EL detectors. Different types of EL detectors are suitable for different samples and measurement needs.

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