CN218823860U

CN218823860U - Integrated miniature weak light spectrum detection device

Info

Publication number: CN218823860U
Application number: CN202222216384.3U
Authority: CN
Inventors: 周起设
Original assignee: Xi'an Remex Analysis Instruments Co ltd
Current assignee: Xi'an Remex Analysis Instruments Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-04-07
Anticipated expiration: 2032-08-23

Abstract

The utility model belongs to the technical field of spectrum detection and discloses an integrated micro low-light spectrum detection device, wherein the input end on the left side of a shell is connected with a transmitting optical fiber; the emission optical fiber is connected with a light-emitting light source at the input port of the shell; a lens, a collimating lens and an optical filter are fixed in the center of the interior of the shell along the horizontal direction; a slit is arranged between the collimating lens and the lens; a reflection type diffraction grating is arranged in the shell; a display screen is arranged between the reflective diffraction grating and the right side wall of the shell; and a collimating mirror and a spectrum detector are arranged on the lower side of the reflective diffraction grating. The utility model discloses a special construction and electronic system design not only can realize the super weak high-resolution luminescence spectrum detection fast, but also can realize using spectral identification to detect as the many material of leading features, multicomponent.

Description

Integrated miniature weak light spectrum detection device

Technical Field

The utility model belongs to the technical field of the spectral detection, especially, relate to miniature low light spectrum detection device of integration.

Background

At present, the existing luminescence spectrum analysis instrument generally adopts CCD for spectrum analysis, has large volume and high price, and completely depends on imported instruments, and when a user needs to perform electrochemiluminescence spectrum analysis or flow injection chemiluminescence/chemiluminescence spectrum analysis experiments, a light splitting device, a light collecting device, a flow injection analyzer and an electrochemical workstation are spliced. The existing instrument has no method for realizing data synchronization, has certain errors, is very troublesome in data processing, simultaneously uses a plurality of software to control the corresponding instrument, and finally splices experimental data one by one.

Different substances can generate light with different wavelengths after being excited, so that the luminescent substance can be analyzed and identified according to the wavelength of a detected light signal, and therefore, the detection instrument has a scanning function in a wide spectral range; in addition, in many cases, the optical signal generated by the excitation of the substance is very weak, and the ideal result is difficult to obtain by adopting the traditional spectrum detection instrument.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a miniature weak light spectrum detection device of integration.

The utility model is realized in such a way, and the integrated miniature weak light spectrum detection device is characterized in that the integrated miniature weak light spectrum detection device is provided with a shell;

the input end on the left side of the shell is connected with a transmitting optical fiber; the emission optical fiber is connected with a light-emitting light source at the input port of the shell; a lens, a collimating mirror and an optical filter are fixed in the center of the inner part of the shell along the horizontal direction; a slit is arranged between the collimating mirror and the lens; a reflective diffraction grating is arranged in the shell; a display screen is arranged between the reflective diffraction grating and the right side wall of the shell; and a collimating mirror and a spectrum detector are arranged on the lower side of the reflective diffraction grating.

Further, the output end of the spectrum detector is connected with the input end port of the display screen, the spectrum detector is connected with a power supply, the lower end of the spectrum detector is connected with a storage, and the spectrum detector, the storage and the display screen are all connected with the single chip microcomputer.

Furthermore, the emission optical fiber is connected with a luminous light source at the input port of the shell, a change-over switch is arranged on the upper surface of the luminous light source, the luminous light source comprises a chemiluminescence light source and an electrochemical luminescence light source, the chemiluminescence light source is arranged above the electrochemical luminescence light source, and plano-convex lenses are arranged between the chemiluminescence light source and the emission optical fiber, and between the electrochemiluminescence light source and the emission optical fiber.

Further, the casing includes portion of gripping and work portion, wholly is pistol shape structure, luminescent light source sets up the front end at work portion, reflection type diffraction grating along with 45 directions settings in the junction of portion of gripping and work portion of horizontal contained angle.

Furthermore, the optical filter is a 400-nanometer long-pass optical filter, the parameters of the reflective diffraction light are 600 reticle numbers/millimeter, the blazed wavelength is 500 nanometers, the wavelength coverage range is 300-800 nanometers, the spectrum detector is a linear array CCD detector, the wavelength range is 350-1100 nanometers, and the number of pixels is 2048.

Furthermore, the transmitting optical fiber is internally woven by mixing two transmitting optical fibers and two receiving optical fibers.

Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are:

the utility model discloses can send corresponding transmission light through change over switch control chemiluminescence light source and electrochemiluminescence light source to can carry out the parallel detection of spectrum, needn't change the instrument, it is short consuming time, this leaf spectrum detection device is through the parallel detection to two kinds of spectra moreover, can improve the accuracy of testing result through the combination of two kinds of spectrum detection results. The utility model discloses a special construction and electronic system design not only can realize super weak high-resolution luminescence spectrum detection high-efficiently, fast, but also can realize using spectral identification to detect as the many material of leading features, multicomponent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.

Fig. 1 is a schematic structural view of an integrated micro weak light spectrum detection device provided by an embodiment of the present invention.

Fig. 2 is a schematic view of a structure of a light source according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a transmitting optical fiber according to an embodiment of the present invention.

In the figure, the following steps are shown: 1. a housing; 2. a reflective diffraction grating; 3. a display screen; 4. a collimating mirror; 5. a spectral detector; 6. a single chip microcomputer; 7. a power source; 8. a reservoir; 9. an optical filter; 10. a slit; 11. a lens; 12. a switch; 13. an emission optical fiber; 14. a plano-convex lens; 15. a chemiluminescent light source; 16. an electrochemiluminescence light source.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

To the problem that prior art exists, the utility model provides a miniature low light spectrum detection device of integration, it is right to combine the figure below the utility model discloses do detailed description.

As shown in fig. 1 to 3, the integrated micro weak light spectrum detection device includes a housing 1, a reflective diffraction grating 2, a display screen 3, a collimating mirror 4, a spectrum detector 5, a single chip microcomputer 6, a power supply 7, a storage 8, a filter 9, a slit 10, a lens 11, a switch 12, an emission optical fiber 13, a plano-convex lens 14, a chemiluminescence light source 15, and an electrochemiluminescence light source 16.

The left input end of the shell 1 is connected with a transmitting optical fiber 13; the emission optical fiber 13 is connected with a light-emitting light source at the input port of the shell 1; a lens 11, a collimating mirror 4 and an optical filter 9 are fixed in the center of the interior of the shell 1 along the horizontal direction; a slit 10 is arranged between the collimating mirror 4 and the lens 11; a reflection type diffraction grating 2 is arranged in the shell 1; a display screen 3 is arranged between the reflective diffraction grating 2 and the right side wall of the shell 1; the lower side of the reflective diffraction grating 2 is provided with a collimating mirror 4 and a spectrum detector 5.

The output end of the spectrum detector 5 is connected with the input end port of the display screen 3, the spectrum detector 5 is connected with the power supply 7, the lower end of the spectrum detector 5 is connected with the storage 8, and the spectrum detector 5, the storage 8, the storage 7 and the display screen 3 are all connected with the single chip microcomputer 6; the emission optical fiber 13 is connected with a luminous light source at the input port of the shell 1, the upper surface of the luminous light source is provided with a change-over switch 12, the luminous light source comprises a chemiluminescence light source 15 and an electrochemiluminescence light source 16, the chemiluminescence light source 15 is arranged above the electrochemiluminescence light source 16, and a plano-convex lens 14 is arranged between the chemiluminescence light source 15 and the electrochemiluminescence light source 16 as well as between the emission optical fiber 13; the shell 1 comprises a holding part and a working part, the whole body is of a pistol-shaped structure, the light-emitting light source is arranged at the front end of the working part, and the reflective diffraction grating 2 is arranged at the joint of the holding part and the working part along the direction with an included angle of 45 degrees with the horizontal direction; the optical filter 9 is a 400-nanometer long-pass optical filter, the parameters of the reflective diffraction light 2 are 600 reticle numbers/millimeter, blazed wavelength is 500 nanometers, and the wavelength coverage range is 300-800 nanometers, the spectrum detector 5 is a linear array CCD detector, the wavelength range is 350-1100 nanometers, and the number of pixels is 2048; the transmitting optical fiber 13 is formed by weaving two transmitting optical fibers and two receiving optical fibers in a mixed mode.

The utility model discloses an emission optic fibre 13 passes through lens 11 with light and focuses on slit 10 entry, becomes parallel beam and carries out the filtering processing back through 400 nanometer long pass filter 9 through collimating mirror 4 with the light beam, carries out the beam split through reflective diffraction grating 2, focuses on linear array spectral detector 5 by the light beam after collimating mirror 4 will split again. After the spectral detector 5 converts the collected optical signals into electric signals, the single chip microcomputer 6 converts analog signals into digital signals, and the single chip microcomputer 6 programs the display screen 3 to display data on the display screen 3 in a sine and cosine curve form. In order to facilitate the subsequent processing and analysis of a large amount of data, the RAM memory 8 externally connected with the singlechip 6 is adopted for data storage. The singlechip 6, the spectrum detector 5 and the light source in the detector are powered by a 3.5V power supply 7.

The utility model can obtain various chemiluminescence and electrochemiluminescence spectra accurate to nanometer level in a wide range. The specific light path design can greatly reduce the light signal attenuation and improve the light emitting detection efficiency. The high-sensitivity electronic detection system can detect the luminescent signal with high precision. The corresponding relation between the wavelength and the light emission can be quickly obtained by high-speed scanning wavelength control and high-speed data detection. The rapid spectral determination can be carried out in a single point, multiple points or continuously. The periodic scanning and the wavelength synchronous detection can obtain accurate synchronous information of various chemical and electrochemical methods and wavelengths.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above description is only for the specific implementation of the present invention, but the protection scope of the present invention is not limited thereto, and any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. The integrated miniature weak light spectrum detection device is characterized in that the integrated miniature weak light spectrum detection device is provided with a shell;

the input end on the left side of the shell is connected with a transmitting optical fiber; the emission optical fiber is connected with a light-emitting light source at the input port of the shell; a lens, a collimating mirror and an optical filter are fixed in the center of the inner part of the shell along the horizontal direction; a slit is arranged between the collimating lens and the lens; a reflective diffraction grating is arranged in the shell; a display screen is arranged between the reflective diffraction grating and the right side wall of the shell; and a collimating mirror and a spectrum detector are arranged on the lower side of the reflective diffraction grating.

2. The integrated miniature weak light spectrum detection device of claim 1, wherein the output end of the spectrum detector is connected with the input end port of the display screen, the spectrum detector is connected with a power supply, the lower end of the spectrum detector is connected with a storage, and the spectrum detector, the storage and the display screen are all connected with the single chip microcomputer.

3. The integrated micro weak light spectrum detection device according to claim 1, wherein the emission optical fiber is connected to a light source at an input port of the housing, a switch is disposed on an upper surface of the light source, the light source comprises a chemiluminescent light source and an electrochemiluminescent light source, the chemiluminescent light source is disposed above the electrochemiluminescent light source, and plano-convex lenses are disposed between the chemiluminescent light source and the electrochemiluminescent light source, and between the emission optical fiber.

4. The integrated miniature weak light spectrum detecting device according to claim 1, wherein said housing comprises a holding portion and a working portion, and has a pistol-shaped structure as a whole, said light source is disposed at the front end of the working portion, and said reflective diffraction grating is disposed at the connection between the holding portion and the working portion along a direction having an angle of 45 ° with the horizontal.

5. The integrated micro weak light spectrum detection device of claim 1, wherein the optical filter is a 400 nm long pass filter, the parameters of the reflected diffracted light are 600 lines/mm, a blazed wavelength is 500 nm, a wavelength coverage range is 300-800 nm, the spectrum detector is a linear array CCD detector, a wavelength range is 350-1100 nm, and the number of pixels is 2048.

6. The integrated micro weak light spectrum detection device of claim 1, wherein the transmitting optical fiber is internally woven by mixing two transmitting optical fibers and two receiving optical fibers.