Unlock instant, AI-driven research and patent intelligence for your innovation.

A detection device and detection method combining Raman spectroscopy and near-infrared spectroscopy

A technology of near-infrared spectroscopy and near-infrared spectrometer, which is applied in the directions of measuring devices, Raman scattering, and material analysis through optical means, and can solve problems such as the inability to provide time-sharing acquisition

Active Publication Date: 2019-05-17
BEIJING HUATAI NOVA TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the prior art cannot provide a solution for time-sharing collection of Raman spectrum signals and near-infrared spectrum signals using the same probe head, the present invention provides a detection device and a detection device combining Raman spectrum and near-infrared spectrum signals. method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A detection device and detection method combining Raman spectroscopy and near-infrared spectroscopy
  • A detection device and detection method combining Raman spectroscopy and near-infrared spectroscopy
  • A detection device and detection method combining Raman spectroscopy and near-infrared spectroscopy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] figure 1 It is a structural diagram of a detection device that combines Raman spectroscopy and near-infrared spectroscopy in Embodiment 1. This device includes: a laser 1, a beam splitter 2, a mechanical mirror switching device, a plane mirror 13, a focusing collection lens 4, a Raman spectrometer coupling lens 5, a Raman spectrometer 6, a semi-reflective semi-transparent beam splitter 17, a near An infrared light source 8 , a near-infrared spectrometer coupling lens 9 , and a near-infrared spectrometer 10 .

[0066] Laser 1 is used to output parallel monochromatic laser beams;

[0067] The beam splitter 2 is arranged on the output optical path of the laser beam output by the laser 1 at a preset angle (for example, 45 degrees) to the laser beam output by the laser 1;

[0068] One end of the mechanical mirror switching device is provided with a plane reflector 13, and the other end is vacant. The mechanical mirror switching device can adopt electromagnetic type or mec...

Embodiment 2

[0086] The difference between Embodiment 2 and Embodiment 1 is that the near-infrared light source 8 adopts a paraxial illumination mode, and the near-infrared light source 8 directly irradiates the sample. A single near-infrared light source can be used, and multiple light sources can also be used. Arranged on the side of the focus collection lens 4. In the second embodiment, there is no need to use a semi-reflective and semi-transparent beam splitter.

[0087] figure 2 It is a structural diagram of a detection device combining Raman spectroscopy and near-infrared spectroscopy in Embodiment 2. This device includes a laser 1, a beam splitter 2, a mechanical mirror switching device, a first plane mirror 23, and a focusing collection lens 4. Raman spectrometer coupling lens 5, Raman spectrometer 6, second plane mirror 27, near-infrared light source 8, near-infrared spectrometer coupling lens 9, near-infrared spectrometer 10;

[0088] Laser 1 is used to output parallel monochrom...

Embodiment 3

[0102] The difference between Embodiment 3 and Embodiment 1 and 2 is that the positions of the near-infrared channel and the Raman channel are reversed. At this time, the near-infrared channel is a straight-through channel, and the Raman channel is a turning strobe channel. Two Mechanical mirror switching device.

[0103] image 3 It is a structural diagram of the detection device of the detection device combined with Raman spectroscopy and near-infrared spectroscopy in Embodiment 3. This device includes a laser 1, a beam splitter 2, a first mechanical mirror switching device, a first plane mirror 33, a focusing Collection lens 4, Raman spectrometer coupling lens 5, Raman spectrometer 6, second mechanical mirror switching device, second plane mirror 37, semi-reflective and semi-transparent mirror, near-infrared light source 8, near-infrared spectrometer coupling lens 9, Near Infrared Spectrometer10.

[0104] Laser 1 is used to output parallel monochromatic laser beams.

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a detection device and method combining Raman spectroscopy with near-infrared spectroscopy. The device comprises a laser device (1), a beam splitter (2), a mechanical mirror switching device, a plane mirror (13), a focus collection lens (4), a Raman spectrometer coupling lens (5), a Raman spectrometer (6), a semi-reflecting and semi-transmitting beam splitter (17), a near-infrared light source (8), a near-infrared spectrometer coupling lens (9) and a near-infrared spectrometer (10). When the mechanical mirror switching device is in a first switching state, the plane mirror (13) is located on the optical path of laser beams reflected by the beam splitter (2), and when the mechanical mirror switching device is in a second switching state, the laser beams reflected by the beam splitter (2) are directly input to the focus collection lens (4). Raman spectroscopy and near-infrared spectroscopy are combined for detection, the Raman spectrometer and the near-infrared spectrometer share one detection head, and time-sharing acquisition of Raman spectrum signals and near-infrared spectrum signals is achieved.

Description

technical field [0001] The invention relates to the technical field of Raman signal processing, in particular to a detection device and a detection method combining Raman spectroscopy and near-infrared spectroscopy. Background technique [0002] Raman spectrum (Raman spectrum) is a kind of scattering spectrum. Raman spectroscopy is based on the Raman scattering effect discovered by Indian scientist C.V. Raman (Raman). It analyzes the scattering spectra of different incident light frequencies to obtain molecular vibration and rotation information, and is applied to molecular structure research. a method of analysis. Raman spectroscopy has been rapidly developed and widely used in the field of non-invasive detection due to its sensitivity, rapidity and convenient operation. [0003] When light hits the medium, in addition to the absorption, reflection and transmission of the medium, a part is always scattered, and the scattering includes elastic scattering and inelastic scat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/359G01N21/65
CPCG01N21/359G01N21/65G01N2201/06113G01N2201/0666G01N2201/0668
Inventor 熊胜军夏征
Owner BEIJING HUATAI NOVA TECH