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Raman spectrum system and method for measuring Raman spectrum

一种拉曼光谱、拉曼散射的技术，应用在测量被检物的拉曼光谱领域，能够解决系统体积增大、丧失便携性、光学元件价格昂贵等问题，达到方便移动、满足高分辨率的要求的效果

Inactive Publication Date: 2009-12-30
NUCTECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, in order to improve the resolution, it is necessary to use a Raman spectrometer with a sufficiently large focal length. At this time, the volume of the entire system will inevitably increase, thus losing portability
In addition, some optical components in the Raman spectrometer are expensive, and have strict requirements on the cleanliness, temperature, and humidity of the environment, which affects the performance of the Raman spectrometer in safety inspection, environmental monitoring, chemical analysis, drug detection, Applications in food testing and other fields

Method used

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  • Raman spectrum system and method for measuring Raman spectrum
  • Raman spectrum system and method for measuring Raman spectrum

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Embodiment Construction

[0026] figure 1 A schematic diagram showing a first embodiment of the Raman spectroscopy system of the present invention. The Raman spectroscopy system includes a detection center 1 for analyzing spectra and a plurality of detection terminals, and each detection terminal may include one or more Raman probes 311...31n. In places such as airports, stations, customs, buildings, playgrounds, prisons, courts, etc., the testing center can be placed in a clean, air-conditioned and temperature-controlled room, and the Raman probe can be set separately from the testing center in multiple Different positions are used to detect objects at different positions, or to detect different parts of the same object. These Raman probes can be spaced from a few meters to hundreds of meters from each other.

[0027] exist figure 1 Among them, the detection center 1 mainly includes a light source 11 , a computer 13 , an analysis device 14 , an optical fiber interface 17 , and a beam splitter 18 . ...

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Abstract

The invention relates to a Raman spectrum system. The system comprises a detection center, an analysis device and at least one detection terminal, wherein the detection center comprises at least one light source for outputting exciting light which can excite a detected object to generate Raman scattered light; the analysis device is used for obtaining the Raman spectrum of the detected object; each detection terminal comprises at least one Raman probe; and each Raman probe guides the exciting light to the detected object and transmits the Raman scattered light generated by the detected object back to the detection center. The invention also relates to a method for measuring the Raman spectrum.

Description

technical field [0001] The invention relates to a Raman spectroscopy system. The invention also relates to a method for measuring the Raman spectrum of the detected object by using the system. Background technique [0002] Scattering occurs when light hits a substance. When scattering occurs, the wavelength of most of the scattered light does not change, and this kind of scattering without changing wavelength is called Rayleigh scattering; the wavelength of a small part of scattered light will increase or decrease, and this kind of scattering with changing wavelength It is called Raman scattering, and its corresponding spectrum is called Raman spectrum. Raman spectroscopy belongs to the vibrational spectrum of molecules. Each substance has its own characteristic Raman spectrum, so Raman spectrum can be used as a "fingerprint" for identifying substances. [0003] The ability of Raman spectroscopy to identify substances depends on the resolution of the Raman spectrometer. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65G01N21/01G08C17/02G08C15/00
CPCG01J3/027G01J3/0264G01J3/44G01J3/0291G01J3/28G01N21/65Y10S707/99933
Inventor 陈志强张丽李元景刘以农赵自然李明亮盖洪峰王红球俞冬梅
Owner NUCTECH CO LTD
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