自上世紀(jì)90年代以來(lái),微電子領(lǐng)域多像素光學(xué)探測(cè)器制造技術(shù)的迅速發(fā)展,使得生產(chǎn)低成本的掃描儀和CCD相機(jī)成為可能。光譜儀使用相同的CCD和光電二極管陣列探測(cè)器,可以快速掃描整個(gè)光譜,而無(wú)需轉(zhuǎn)動(dòng)光柵。
光纖光譜儀通常使用光纖作為信號(hào)耦合裝置,將測(cè)量到的光耦合到光譜儀進(jìn)行光譜分析。由于光纖的方便,用戶可以非常靈活地構(gòu)建光譜采集系統(tǒng)。
光纖光譜儀的優(yōu)點(diǎn)在于測(cè)量系統(tǒng)的模塊化和靈活性。光纖光譜儀的測(cè)量速度非??欤捎糜谠诰€分析。此外,由于使用了低成本的通用探測(cè)器,降低了光譜儀的成本,降低了整個(gè)測(cè)量系統(tǒng)的成本。
光纖光譜儀的基本結(jié)構(gòu)由光柵、狹縫和探測(cè)器組成。在購(gòu)買光譜儀時(shí),必須詳細(xì)說(shuō)明這些元件的參數(shù)。光譜儀的性能取決于這些元件的精確組合和校準(zhǔn)。校準(zhǔn)后,光纖光譜儀的原理不能改變。
目前,隨著光譜工業(yè)的迅速發(fā)展,光纖光譜儀在我國(guó)得到了越來(lái)越多的認(rèn)可,其產(chǎn)品性能和質(zhì)量與國(guó)外同類產(chǎn)品相當(dāng)。
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.