自上世纪90年代以来,微电子领域多像素光学探测器制造技术的迅速发展,使得生产低成本的扫描仪和CCD相机成为可能。光谱仪使用相同的CCD和光电二极管阵列探测器,可以快速扫描整个光谱,而无需转动光栅。
光纤光谱仪通常使用光纤作为信号耦合装置,将测量到的光耦合到光谱仪进行光谱分析。由于光纤的方便,用户可以非常灵活地构建光谱采集系统。
光纤光谱仪的优点在于测量系统的模块化和灵活性。光纤光谱仪的测量速度非常快,可用于在线分析。此外,由于使用了低成本的通用探测器,降低了光谱仪的成本,降低了整个测量系统的成本。
光纤光谱仪的基本结构由光栅、狭缝和探测器组成。在购买光谱仪时,必须详细说明这些元件的参数。光谱仪的性能取决于这些元件的精确组合和校准。校准后,光纤光谱仪的原理不能改变。
目前,随着光谱工业的迅速发展,光纤光谱仪在我国得到了越来越多的认可,其产品性能和质量与国外同类产品相当。
Since the 1990s, the rapid development of multi-pixel optical detector manufacturing technology in the field of microelectronics has made it possible to produce low-cost scanners and CCD cameras. Using the same CCD and photodiode array detector, the spectrometer can scan the whole spectrum quickly without rotating the grating.
The optical fiber spectrometer usually uses the optical fiber as the signal coupling device to couple the measured light to the spectrometer for spectral analysis. Because of the convenience of optical fiber, users can build a spectrum acquisition system very flexibly.
The advantages of optical fiber spectrometer lie in the modularity and flexibility of the measurement system. The measurement speed of optical fiber spectrometer is very fast, which can be used for on-line analysis. In addition, due to the use of a low-cost universal detector, the cost of the spectrometer is reduced, and the cost of the whole measurement system is reduced.
The basic structure of optical fiber spectrometer consists of grating, slit and detector. When purchasing spectrometers, the parameters of these components must be specified. The performance of the spectrometer depends on the precise combination and calibration of these elements. After calibration, the principle of optical fiber spectrometer cannot be changed.
At present, with the rapid development of the spectrum industry, the optical fiber spectrometer has been more and more recognized in China, and its product performance and quality are equivalent to the similar products abroad.