Detecting microscopic chromatic differences

Principle of Analyzing Microscopic Chromaticity Differences Using PL Spectroscopy

When the PL spectrometer is in operation, the fluorescence emitted by the measured substance under excitation light is converted into monochromatic fluorescence by the monochromator and irradiated onto the photomultiplier tube. The photocurrent generated by it is amplified by an amplifier and output to the recorder. One excitation, one emission, using a dual monochromator system, can measure the excitation spectrum and fluorescence spectrum separately.
Both excitation and emission fluorescence spectra record the variation of emission fluorescence intensity with wavelength. So in the fluorescence spectrum, the y-axis represents intensity and the x-axis represents wavelength. Firstly, the peak position and full width at half maximum can be obtained from the graph. The intuitive manifestation of peak position is the color of fluorescence; The half width indicates the purity of the fluorescence.

Microscopic color difference spectrometer detection parameters
The peak positions of the peak spectrum can intuitively reflect color differences, and different colors will present different peak positions;
2. Collect data every 200ms and synchronously analyze it;
3. Equipped with sample storage function;
4. Equipped with historical data query function;

Process of using micro color difference spectrometer for detection
1. First, place the standard chromaticity or color palette products of the same material in the testing area for standard peak spectrum learning.
2. Save the standard spectrum to the sample library.
3. Select the current formula that needs to be tested and perform real-time testing