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Method and apparatus for enhancing signal-to-noise ratio of Raman spectrometer

A Raman spectrometer and signal-to-noise ratio technology, applied in the field of optical instruments, can solve the problems of poor stability and reliability, difficult production and other problems, and achieve the effect of reducing costs

Active Publication Date: 2015-06-24
SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

It overcomes the problems of poor product stability and reliability and difficult production in the above technologies to meet the needs of high-power fiber lasers and high-power fiber amplifiers

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  • Method and apparatus for enhancing signal-to-noise ratio of Raman spectrometer
  • Method and apparatus for enhancing signal-to-noise ratio of Raman spectrometer
  • Method and apparatus for enhancing signal-to-noise ratio of Raman spectrometer

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 As shown, it is a structural schematic diagram of the present invention, a device for enhancing the signal-to-noise ratio of a Raman spectrometer based on adaptive time-sharing undersaturated exposure, including a main controller 3, a Raman laser 4, a laser constant current drive circuit 5, a linear CCD1, CCD signal processing circuit 2, linear CCD1 is electrically connected to CCD signal processing circuit 2, Raman laser 4 is electrically connected to laser constant current drive circuit 5, main controller 3 is electrically connected to linear CCD1, CCD signal processing circuit 2 and laser constant current drive Circuit 5, main controller 3 receives external command signals, and controls electrically connected components.

[0029] Such as figure 2 Shown is a specific embodiment of the present invention. T...

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Abstract

The invention discloses an apparatus for enhancing the signal-to-noise ratio of a Raman spectrometer. The apparatus comprises a main controller, a Raman laser, a laser constant current drive circuit, a linear CCD and a CCD signal processing circuit, wherein the linear CCD is electrically connected with the CCD signal processing circuit, the Raman laser is electrically connected with the laser constant current drive circuit, the main controller is electrically connected with the linear CCD, the CCD signal processing circuit and the laser constant current drive circuit, and the main controller receives an external command signal and controls the electrically connected parts. The invention further discloses a method for improving the signal-to-noise ratio of the Raman spectrometers. Through usage of an adaptive time-sharing under-saturation exposure method, precision control of the CCD and revision of software algorithms, the high signal-to-noise ratio of the Raman spectrometer using the low-cost CCD is obtained, and cost for any additional hardware is not needed, so the cost of the Raman spectrometer can be significantly reduced.

Description

technical field [0001] The invention relates to the field of optical instruments, in particular to a method and device for enhancing the signal-to-noise ratio of a Raman spectrometer based on adaptive time-sharing undersaturated exposure. Background technique [0002] Raman spectroscopy can provide simple, fast, repeatable and non-destructive qualitative and quantitative substance analysis. It does not require sample preparation, and the sample can be measured and analyzed directly through the fiber optic probe or through glass, quartz and fiber optics. With the continuous expansion of the application field, the Raman spectrometer began to enter the family. To further expand the application field of the Raman spectrometer, the cost of the Raman spectrometer must be reduced as much as possible. [0003] Since the Raman scattered light is very weak, in order to obtain a better signal-to-noise ratio and achieve a better minimum detection limit, the Raman spectrometer needs to u...

Claims

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Application Information

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IPC IPC(8): G01N21/01G01N21/65
Inventor 刘鸿飞蒋龙键李俊梅毛慧珍罗志军林佳
Owner SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD
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