Journey and extension simple introduction optical fiber spectrometer for you

by:FOT     2020-06-21
Spectroscopy is the measurement of ultraviolet, visible and near infrared and infrared light intensity of a technology. Spectral measurement is widely used in various fields, such as color measuring, analysis of the concentration of the chemical composition of test or electromagnetic radiation, etc. Spectral instrument generally include incident slit, collimating lens, dispersive element, focusing optical system and detector. In the monochromator often including exit slit, make a very narrow part of the whole spectrum irradiation on single pixel detector. In the incident and exit slit of the monochrometer often fixed position and width adjustable, can be achieved by rotating grating to scan the entire spectrum. The advantages of fiber optic equipment spectrometer is system of modularization and flexibility. Fiber optic spectrometer measurement speed is very fast, it can be used for on-line analysis. Universal detector and choose due to its low cost, so the cost of the spectrometer is greatly reduced, thus greatly extend its application field. A fiber optic spectrometer can use the following six parameters to reflect the performance of: 1, the spectral range: the wavelength of light signal can be detected by spectrometer. 2, spectral resolution: distinguish small, zui wavelength can be spectrometer. 3, sensitivity, can be detected by spectrometer zui small light energy. 4, dynamic range, can be measured by spectrometer zui big and zui the ratio of light energy. 5, signal-to-noise ratio: the ratio of signal energy level and noise level of spectrometer. 6, spectral acquisition speed: to a certain level of the incident light energy, production of a spectrometer to measure the signal and the time required to obtain spectra.
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