Miniaturized laser Raman spectrum collection device and method

A laser Raman spectroscopy and acquisition device technology, which is applied in the field of spectral measurement and spatial optical zoom, can solve the problems of high Raman spectroscopy excitation efficiency and collection efficiency, low requirements for use environment and transportation conditions, and limited application scenarios. Improve excitation efficiency and collection efficiency, low requirements for use environment and transportation conditions, and small volume

Active Publication Date: 2022-04-12
SHANDONG UNIV
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Problems solved by technology

[0004] Aiming at the problems of limited application scenarios and high cost of use in the prior art, the present invention provides a miniaturized laser Raman spectrum acquisition device and method, which can realize miniaturized auto-focusing laser Raman spectrum signal acquisition, and greatly improve the use environment. Low requirements on transportation and transportation conditions, low cost of use, and high excitation and collection efficiency of Raman spectroscopy

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  • Miniaturized laser Raman spectrum collection device and method
  • Miniaturized laser Raman spectrum collection device and method
  • Miniaturized laser Raman spectrum collection device and method

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Embodiment Construction

[0031] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner" and "outer" are based on the The positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implyin...

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Abstract

The invention relates to a miniaturized laser Raman spectrum collection device and method, the device includes: a dichroic beam splitter; a laser emitting unit placed in the incident direction of the light path of the dichroic beam splitter; an electronically controlled focusing unit placed in the two The reflection direction of the light path of the beam splitter; the Raman spectrum signal separation and acquisition unit is placed in the transmission direction of the dichroic beam splitter; the control unit is equipped with a spectrum drawing module, a focus evaluation module and a displacement control connected to the electronically controlled focusing unit module, the spectrogram drawing module is connected to the Raman spectrum signal separation and acquisition unit, the focus evaluation module is connected to the Raman spectrum signal separation and acquisition unit, and the displacement control module is connected to the focus evaluation module. The invention can realize miniaturized auto-focusing laser Raman spectrum signal collection, has low requirements on use environment and transportation conditions, low use cost, and high excitation efficiency and collection efficiency of Raman spectrum.

Description

technical field [0001] The invention belongs to the technical field of spectrum measurement and spatial optical zoom, and relates to Raman spectrum measurement technology, in particular to a miniaturized laser Raman spectrum acquisition device and method. Background technique [0002] The automatic focusing of the miniaturized laser Raman spectrum acquisition device is a new technology produced in the process of automatic Raman spectrum analysis. It focuses the incident laser light on the surface of the sample to be tested through an electronically controlled focusing module to excite and collect Raman spectrum signals. Raman spectroscopy is a means of "fingerprint identification" at the molecular level to obtain information such as the material composition structure and composition of the sample at the submillimeter scale. At present, laser Raman spectroscopy has been widely used in food safety, material testing, drug identification, quantitative detection of harmful substa...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/65G01J3/44
CPCG01N21/65G01J3/44
Inventor 凌宗成刘毅恒辛艳青刘长卿武中臣吴怡萱
Owner SHANDONG UNIV
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