CN212964629U

CN212964629U - Raman spectrometer

Info

Publication number: CN212964629U
Application number: CN202021409054.0U
Authority: CN
Inventors: 张文; 张勇
Original assignee: Shenzhen Lailei Technology Development Co ltd
Current assignee: Shenzhen Lailei Technology Development Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-04-13
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a Raman spectrometer, which comprises a shell and a mounting rack, wherein the front surface of the mounting rack is fixedly provided with a display, and the back surface of the mounting rack is provided with the Raman spectrometer; various compounds are conveniently analyzed through a Raman spectrometer, and Raman characteristic displacement peaks of various compounds can be conveniently displayed by a display; the shell comprises an upper shell and a lower shell, and a plurality of mounting grooves are formed in the lower shell, so that parts can be mounted conveniently; the utility model discloses in utilize the raman spectroscopy appearance to wait to detect the material analysis survey, the raman spectroscopy appearance comes out through the display audio-visual display with the raman characteristic displacement peak of the material of analysis, the vibration rotation energy level condition that just can know the material through the raman characteristic displacement peak that shows on the display and the analysis contrast of raman spectroscopy, thereby distinguish the material directly perceivedly, the nature of analysis material, do not need raman spectroscopy appearance and computer networking just can the accurate survey material attribute, and is small, and is convenient for carry, the operation is simple, beneficial effect such as practicality is strong.

Description

Raman spectrometer

Technical Field

The utility model relates to a raman spectroscopy field specifically is a raman spectroscopy appearance.

Background

The raman spectroscopy technique is a technique for detecting a substance based on raman scattering caused by interaction between light and the substance. Raman spectroscopy has the characteristics of being non-destructive, non-invasive, sample-processing-free, information-rich, high analysis efficiency, and each molecule has a characteristic raman spectrum corresponding thereto, and thus has been widely used in the fields of biology, chemistry, medical treatment, food safety, aerospace, environmental protection, and the like.

The principle of raman spectroscopy is: one photon interacts with one molecule, if the energy of the absorbed photon of the molecule is transited from the low energy level of the vibration or rotation state to the high energy level, the energy lost by the photon is equal to the energy required by the transition of the vibration or rotation energy level of the molecule according to the law of energy conservation, the vibration frequency is changed after the photon loses energy, and the change rule of the photon frequency is recorded by the Raman spectrometer, namely the Raman spectrum. The Raman spectrum is a very weak signal, the intensity of which is less than 10-8 of that of the excitation light source, and in order to obtain a Raman spectrum with good quality, the Raman spectrometer is required to have high collection efficiency and transmission efficiency of the Raman spectrum, low background noise and few interference signals.

There are three types of raman spectrometers on the market today: one is a three-stage raman spectrometer; the second is a confocal Raman spectrometer used in laboratories; the third is a fiber Raman spectrometer, and the Raman spectrometer identifies compounds with high accuracy, such as proteins and the like; raman spectrometers also have a wide range of applications, for example: inside the police, raman spectrometers are often used to identify the basic components of drugs and explosives; in the pharmaceutical industry, a Raman spectrometer is often used for identifying pharmaceutical compounds and detecting components of western medicines such as amoxicillin and the like; in a word, the Raman spectrometer can accurately identify the composition and proportion of the compounds in the Raman spectrometer by scanning the related compounds, and assists police and pharmaceutical companies in judging and analyzing; the existing Raman spectrometer for Raman spectrum detection comprises a laser, a spectrum analyzer and a Raman probe, wherein the laser and the spectrum analyzer are respectively connected with the Raman probe; the working principle is as follows: the Raman probe irradiates the received laser with a certain wavelength output by the laser on the object to be detected, and transmits the collected Raman scattering light excited by the object to be detected under the irradiation of the laser to the spectrum analyzer, and the spectrum analyzer analyzes the Raman spectrum result and the analysis result of the object to be detected.

The prior art lacks a portable Raman spectrometer with high optical fiber transmission efficiency, a display for displaying Raman characteristic displacement peaks of various compounds is not arranged on the existing Raman spectrometer with smaller volume, although the Raman spectrometer has smaller volume, the material attribute can be accurately measured only by networking with a computer, and the operation is more complicated.

Therefore, the inventor provides a Raman spectrometer by combining various factors.

Disclosure of Invention

An object of the utility model is to provide a raman spectroscopy appearance to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a Raman spectrometer comprises a shell and a mounting rack, wherein a display is fixedly mounted on the front surface of the mounting rack, and a Raman spectrometer is arranged on the back surface of the mounting rack; various compounds can be conveniently analyzed through a Raman spectrometer, and Raman characteristic displacement peaks of various compounds can be conveniently displayed by a display.

When in work: the Raman spectrometer is started, the Raman spectrometer is used for analyzing and measuring the substance to be detected, the Raman spectrometer visually displays the Raman characteristic displacement peak of the analyzed substance through the display, and the vibration rotation energy level condition of the substance can be known through analyzing and comparing the Raman characteristic displacement peak displayed on the display with the Raman spectrum, so that the substance can be identified and the property of the substance can be analyzed.

As a further aspect of the present invention: the casing includes casing and lower casing, be provided with a plurality of mounting grooves in the lower casing, be convenient for installation spare part.

As a further aspect of the present invention: the Raman spectrometer comprises a laser, a Raman signal acquisition device and a spectrum analyzer, wherein one surface of the laser, the Raman signal acquisition device and the spectrum analyzer is fixed on a corresponding mounting groove in the lower shell, and the other surface of the laser, the Raman signal acquisition device and the spectrum analyzer is fixedly mounted on the mounting frame; the convenience is with each spare part fixed mounting, thereby prevents that the spare part from rocking in the casing and influencing the detection precision.

As a further aspect of the present invention: the spectrum analyzer is connected with the display through the data line, the spectrum analyzer is convenient for the Raman spectrum result and the analysis result of a sample to be detected to form digital signals, and the display is convenient for an analyst to check, and the display visually displays the Raman characteristic displacement peak of the analysis sample.

As a further aspect of the present invention: install installation plasma light filter, laser attenuation piece plasma light filter and laser attenuation piece between laser instrument and the raman signal collection system and all install in the inside mounting groove that corresponds of inferior valve, plasma light filter and laser attenuation piece are precision parts, and fixed mounting can effectively prevent to rock because of plasma light filter and laser attenuation piece and influence the detection precision in the mounting groove.

As a further aspect of the present invention: the Raman probe is installed at the front end of the laser, the sample cover is arranged at the front end of the Raman probe, the sample cover is movably installed at the front end of the objective lens, and a sample to be detected is contained in the sample cover, so that the sample is convenient to detect.

As a further aspect of the present invention: go up the intermediate position on the casing and seted up the rectangular channel, the display cooperation is installed in the rectangular channel, makes things convenient for operating personnel to look over the display.

As a further aspect of the present invention: the upper shell and the lower shell are provided with bolt holes at corresponding positions, and the upper shell and the lower shell are fixedly installed together by bolts penetrating through the corresponding bolt holes.

Compared with the prior art, the utility model discloses the beneficial effect of following several aspects has:

1. the utility model provides a Raman spectrometer, the structure sets up ingeniously and arranges rationally, the utility model discloses in utilize Raman spectrometer will wait to detect the material assay survey, Raman spectrometer passes through the display audio-visual display with the Raman characteristic displacement peak of the material of analysis and comes out, the vibration rotation energy level condition that just can know the material through the analysis contrast to the Raman characteristic displacement peak that shows on the display and Raman spectrum, thereby distinguish the material directly perceived, the nature of analysis material does not need Raman spectrometer and computer networking just can the accurate determination material attribute, it is less to have the volume, and is convenient for carry, and easy operation, beneficial effect such as practicality is strong.

2. The utility model further designs a mounting groove and a mounting rack, which fixedly install the parts in the Raman spectrometer in the mounting rack and the mounting groove; the convenience is with each spare part fixed mounting, thereby has and prevents that the spare part from rocking the beneficial effect that influences the detection precision in the casing.

3. The utility model discloses the raman probe front end of further design is provided with the sample lid, and sample lid movable mounting is at the objective front end, and the splendid attire has the sample of waiting to detect in the sample lid, has the beneficial effect of conveniently settling the detection sample.

4. The utility model discloses the cooperation of the display of further design is installed in the rectangular channel, has the beneficial effect that makes things convenient for operating personnel to look over the display.

Drawings

Fig. 1 is a schematic structural diagram of an upper housing in a raman spectrometer.

Fig. 2 is a schematic structural diagram of a lower housing of a raman spectrometer.

Fig. 3 is a schematic structural diagram of a mounting frame in a raman spectrometer.

Fig. 4 is a schematic front view of a raman spectrometer.

Fig. 5 is a schematic diagram of a reverse structure of a raman spectrometer.

In the figure: 1. an upper housing; 2. a rectangular groove; 3. bolt holes; 4. a lower housing; 5. mounting grooves; 6. a mounting frame; 7. a display; 8. a sample cover; 9. a Raman probe; 10. a laser; 11. a spectrum analyzer; 12. raman signal collection system.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-5, a raman spectrometer comprises a housing and a mounting frame 6, wherein a display 7 is fixedly mounted on the front surface of the mounting frame 6, and a raman spectrometer is arranged on the back surface of the mounting frame 6; various compounds are conveniently analyzed through a Raman spectrometer, and Raman characteristic displacement peaks of various compounds can be conveniently displayed on the display 7; the shell comprises an upper shell 1 and a lower shell 4, and a plurality of mounting grooves 5 are formed in the lower shell 4, so that parts can be mounted conveniently; the Raman spectrometer comprises a laser 10, a Raman signal acquisition device 12 and a spectrum analyzer 11, wherein one surface of the laser 10, one surface of the Raman signal acquisition device 12 and one surface of the spectrum analyzer 11 are fixed on the corresponding mounting groove 5 in the lower shell 4, and the other surface of the Raman signal acquisition device 12 and the other surface of the spectrum analyzer 11 are fixedly mounted on the mounting frame 6; each part is convenient to be fixedly installed, and the part is prevented from shaking in the shell to influence the detection precision; the spectrum analyzer 11 and the display 7 are connected together through a data line, so that the spectrum analyzer 11 can conveniently form a Raman spectrum result and an analysis result of a sample to be detected into digital signals, the digital signals are transmitted to the display 7 through the data line, and the display 7 can visually display a Raman characteristic displacement peak of the analysis sample, so that an analyst can conveniently check the Raman characteristic displacement peak; a plasma optical filter and a laser attenuation sheet are installed between the laser 10 and the Raman signal acquisition device 12, the plasma optical filter and the laser attenuation sheet are installed in corresponding installation grooves 5 in the lower shell 4, the plasma optical filter and the laser attenuation sheet are precision parts, and the plasma optical filter and the laser attenuation sheet are fixedly installed in the installation grooves 5 to effectively prevent the detection precision from being influenced by the shaking of the plasma optical filter and the laser attenuation sheet; the Raman probe 9 is installed at the front end of the laser 10, the sample cover 8 is arranged at the front end of the Raman probe 9, the sample cover 8 is movably installed at the front end of the objective lens, and a sample to be detected is contained in the sample cover 8, so that the sample is convenient to detect; a rectangular groove 2 is formed in the middle of the upper shell 1, and the display 7 is installed in the rectangular groove 2 in a matched mode, so that an operator can conveniently check the display 7; corresponding positions on the upper shell 1 and the lower shell 4 are provided with bolt holes 3, and the upper shell 1 and the lower shell 4 are fixedly installed together by penetrating the corresponding bolt holes 3 through bolts.

The utility model discloses a theory of operation is: the Raman probe 9 irradiates the received laser with a certain wavelength output by the laser 10 on a sample to be detected, a Raman signal acquisition device 12 acquires Raman scattering light excited by the sample to be detected under the irradiation of the laser, the acquired Raman scattering light excited by the sample to be detected is transmitted to the spectrum analyzer 11, the spectrum analyzer 11 analyzes a Raman spectrum result and an analysis result of the sample to be detected, and finally the Raman spectrum analyzer visually displays a Raman characteristic displacement peak of an analyzed substance through the display 7; by comparing the Raman characteristic displacement peak displayed on the display 7 with the Raman spectrum analysis, the vibration and rotation energy level condition of the substance can be known, and the substance can be identified and the property of the substance can be analyzed.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The Raman spectrometer comprises a shell and a mounting rack (6), and is characterized in that a display (7) is fixedly mounted on the front surface of the mounting rack (6), and the Raman spectrometer is arranged on the back surface of the mounting rack (6).

2. A raman spectrometer according to claim 1, characterized in that said housing comprises an upper housing (1) and a lower housing (4), said lower housing (4) being provided with mounting slots (5).

3. The Raman spectrometer according to claim 2, wherein the Raman spectrometer comprises a laser (10), a Raman signal acquisition device (12) and a spectrum analyzer (11), one surface of the laser (10), the Raman signal acquisition device (12) and the spectrum analyzer (11) is fixed on a corresponding mounting groove (5) in the lower shell (4), and the other surface of the laser (10), the Raman signal acquisition device (12) and the spectrum analyzer (11) is fixedly mounted on the mounting frame (6).

4. A raman spectrometer according to claim 3, characterized in that said spectrum analyzer (11) and said display (7) are connected together by means of a data line.

5. The Raman spectrometer according to claim 4, wherein a plasma filter and a laser attenuation sheet are installed between the laser (10) and the Raman signal acquisition device (12), and the plasma filter and the laser attenuation sheet are installed in corresponding installation grooves (5) in the lower shell (4).

6. A Raman spectrometer according to claim 5, wherein a Raman probe (9) is mounted at the front end of the laser (10), a sample cover (8) is arranged at the front end of the Raman probe (9), the sample cover (8) is movably mounted at the front end of the objective lens, and a sample to be detected is contained in the sample cover (8).

7. The Raman spectrometer according to claim 6, wherein a rectangular groove (2) is formed in the upper housing (1) at a middle position, and the display (7) is installed in the rectangular groove (2) in a matching manner, so that an operator can conveniently view the display (7).

8. A Raman spectrometer according to claim 7, wherein the upper housing (1) and the lower housing (4) are provided with bolt holes (3) at corresponding positions, and the upper housing (1) and the lower housing (4) are fixedly mounted together by bolts passing through the corresponding bolt holes (3).