Miniature fiber optic spectrometer has become an important research direction of the development of the spectral instruments miniature fiber optic spectrometer is applied optics technology, electronic technology and computer technology to the composition and structure of the materials and other basic equipment, carries on the analysis and measurement, is widely used in environmental monitoring, industrial control, chemical analysis, food quality testing, material analysis, clinical examination, aerospace remote sensing and science education and other fields.
Because traditional spectrometer with complicated structure and limited use of the environment, inconvenient to carry and expensive is insufficient, can't meet the needs of field detection and real-time monitoring.
Therefore, miniature fiber spectrometer become an important research direction of the development of the spectrum instrument.
In recent years, due to the fiber optic equipment
, grating and array detector technology development and mature, make form the source spectrum detection system, the sampling unit and spectrographic unit structure form of phase separation, the whole system more modular structure, use more convenient and flexible, thus making miniature fiber optic spectrometer shou field detection and real-time monitoring instruments.
Miniature fiber optic spectrometer features low loss optical fiber grating, rate and low noise and high sensitive CCD array detector is related to the development of technology, make the miniature fiber optic spectrometer has made great improvement in performance, has the following characteristics: (1) fiber optic equipment transmission technology, the development of fiber optic equipment technology, make the object under test from the limitation of the fixed sample pool, sampling methods become more flexible, suitable for long distance sample quality monitoring.
Due to the effect of transmission of the optical fiber optical signals, making the spectrometer can be far away from the interference of the external environment, to ensure long-term reliable operation of the spectrometer.
2 CCD array detector technology: will the effect of light on the detector after grating spectral moments collection at the same time, rather than moving grating, so the sample spectra collection speed and fast (
Measuring time is 3.
8 ~ 10 min)女士
And through the computer real-time output.
(3) technology: the grating holographic grating with smaller stray light, and has higher mechanical characterization of grating reflectivity and sensitivity.
(4) computer technology, the development of electronic computing technology greatly improves the miniature fiber optic spectrometer intelligent control and processing capacity.
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