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Portable chemical composition remote analysis device based on Raman spectrum

A Raman spectroscopy and analysis device technology, applied in the field of Raman spectroscopy measurement devices, can solve the problems of high cost, bulky, complex structure and the like

Inactive Publication Date: 2015-03-25
CHENGDU DINGZHIHUI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional Raman spectrometers are bulky, complex and expensive, and require professional personnel to operate and analyze

Method used

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  • Portable chemical composition remote analysis device based on Raman spectrum

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Embodiment Construction

[0017] see figure 1 , is the circuit block diagram of the portable remote analysis device based on the chemical composition of Raman spectrum in the present invention, the portable remote analysis device based on the chemical composition of Raman spectrum in the present invention, MCU, which controls the data acquisition of Raman spectrum and the analysis device Data transmission; Raman spectrometer, which is used to select a near-infrared laser with a laser light source emission wavelength of 785nm, a laser energy parameter of 100-200mw, and an integration time parameter of 5-20s, and obtain the best Raman peak with the two parameters Intensity, the average Raman spectrum is obtained by continuous scanning; the encoding switch, which is connected to the MCU through an encoding switch circuit consisting of a bidirectional encoding switch SW1, a monostable flip-flop 74LS123, a double D flip-flop 745LS74 and an inverter, the encoding The switch circuit sends different coded sign...

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Abstract

The invention provides a portable chemical composition remote analysis device based on a Raman spectrum, and aims at providing a Raman spectrum chemical composition analysis device with a volume as small as possible. The portable chemical composition remote analysis device comprises an MCU, a Raman spectrometer, a coding switch, a communication unit and a remote processing unit. According to the portable chemical composition remote analysis device provided by the invention, the database capacity can be relatively large and can be updated in real time, a database for saving Raman spectra of multiple chemical elements is continuously upgraded and perfected, a part of defects that the built-in database or application software of the portable Raman spectrometer cannot meet the requirements on on-site data processing, analysis and management can be overcome, and the functions of the portable Raman spectrometer are extended, so that the portable Raman spectrometer is adapted to the practical demand on on-site rapid detection.

Description

technical field [0001] The present invention relates to a Raman spectrum measurement device, more particularly, to a portable remote analysis device for chemical composition based on Raman spectrum. Background technique [0002] The use of spectroscopy to measure physical and analytical properties of materials is a well-established technique in analytical laboratories. Raman spectroscopy is one such technique that provides qualitative and quantitative information about the composition or molecular structure of a chemical substance. When incident radiation interacts with matter it can undergo a process called scattering. The scattered radiation can be elastic, where the wavelength of the incident radiation is not changed in the scattered radiation, or inelastic, where the wavelength of the scattered radiation is different from the incident radiation. In one form of inelastic scattering, known as Raman scattering, an incident photon either gains or loses energy as it scatter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65
Inventor 许驰
Owner CHENGDU DINGZHIHUI TECH
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