How to configure the fiber spectrometer
a narrow slit slit can improve the resolution, but luminous flux is small; Broad slit, on the other hand, can increase the sensitivity, but lose resolution. In the different application requirements, choose the right slit width in order to optimize the whole test results.
detector probe in some ways determines the sensitivity and resolution of the optical fiber spectrometer, detector light sensitive area is limited in principle, it is divided into many small pixels for high resolution or divided into fewer but larger pixel for high sensitivity. Back light sensitive CCD detector sensitivity is usually better, to a certain extent, so it can get better resolution in the case of no sensitivity. Near infrared InGaAs detector due to high sensitivity and thermal noise itself, adopt the way of refrigeration can effectively improve the SNR of the system. m· u· T rely on from the optical spectrometer detector manufacturers, such as Sony, Hamamatsu, Thoshiba, etc.
filter because of the influence of the multistage diffraction spectrum itself, the filter can reduce the interference of multistage diffraction. Unlike conventional spectrometer, fiber optic equipment spectrometer is coated on detector, this part of the function in the factory need to install in place. At the same time, the coating also has the function of antireflective improve the SNR of the system.
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