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Balanced type optical fiber array biochemical spectrum light splitting device

A technology of optical fiber array and spectroscopic device, which is applied in the fields of biochemical analysis instruments and biochemical detection, can solve the problems of not being able to detect multiple wavelengths at the same time, reduce the accuracy of wavelengths, and fail to solve the problems of multi-wavelength detection, so as to improve the accuracy and stability of the results, Reduce product cost and reduce the effect of stray light interference

Inactive Publication Date: 2020-12-29
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the signal strength problem is solved by increasing the bandwidth to the array detector, the wavelength accuracy is reduced
In addition, limited by the width of the array detector, it is impossible to detect multiple wavelengths at the same time
[0006] None of the above patents solves the problem of multi-wavelength detection. Therefore, the present invention discloses a balanced optical fiber array biochemical spectroscopic device, which uses the optical fiber bundle to transmit light at the receiving end, and filters part of the light at the output end of the optical fiber bundle to replace the traditional one. Grating type and filter type spectroscopic device

Method used

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  • Balanced type optical fiber array biochemical spectrum light splitting device
  • Balanced type optical fiber array biochemical spectrum light splitting device
  • Balanced type optical fiber array biochemical spectrum light splitting device

Examples

Experimental program
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Embodiment 1

[0039]The ultraviolet light with a wavelength of 340 nm is often used in the detection items of the biochemical analyzer, so there are special requirements for the ultraviolet light emission of the light source 7. The ultraviolet light emitted by ordinary bulbs is quite weak, so we choose halogen lamps. The working wavelength of the halogen lamp is generally 325nm-800nm, which can meet the detection of biochemical analyzer from ultraviolet light to visible light. Moreover, halogen lamps have the advantages of strong light, long service life, high luminous efficiency and small size. The wavelength range that the present invention needs to split is 340nm-800nm,figure 1 To illustrate, (1) is the spectrum diagram of the halogen lamp used in this invention, and (2) is the schematic diagram of the spectral response range of the array-distributed silicon photocell detector 2. It can detect light with wavelengths of 340nm-800nm ​​and is suitable for this invention. invention.

[0040]Due to th...

Embodiment 2

[0044]Such asFigure 4 As shown, a balanced optical fiber array biochemical spectroscopy device is composed of a light source 7, a sample cell 6, an optical fiber bundle receiving end 5, an optical fiber bundle output end 3, and a detector 2. The optical fiber receiving end 5 is inserted into the fixed sample cell 6 Insert the fiber bundle output end 3 into the detector 2 with its center facing the beam passing through the sample. The fiber bundle receiving end 5, the fiber bundle output end 3, and the detector 2 are plug-in types, using screw nuts 4 Install it.

[0045]Figure 5 It is the internal schematic diagram of the fiber bundle receiving end 5 and the fiber bundle output end 3. The fiber 1 in the fiber bundle receiving end 5 is a 4×4, 16-hole square array, and the fiber bundle output end 3 adopts a straight line arrangement. The end face of each optical fiber at the output end is coated with interference filter film 3-1 with different parameters, and the half bandwidth is less th...

Embodiment 3

[0047]Such asFigure 5 As shown, in order to keep the refractive index of the fiber bundle 5-1 unaffected, the fiber bundle receiving end 5 is packaged with a low refractive index, fluorine-doped 4×4 square array distributed 16-hole quartz sleeve 5-2, where, The distribution of the quartz sleeve 5-2 is consistent with the distribution of the receiving end 5 of the optical fiber bundle.

[0048]Figure 6 It is a schematic diagram of the output end structure of the balanced fiber array biochemical spectroscopy device. Insert each optical fiber into the ceramic ferrule 2-1, fix it with glue, and grind the end surface to make it flat. Due to the needs of light splitting, the end surface of each optical fiber in the optical fiber bundle 5-1 is coated with an interference filter film 3 with different parameters. -1, the half bandwidth is less than or equal to 6nm, and then each ceramic ferrule 2-1 is arranged linearly and fixed inside a plug.

[0049]Such asFigure 7As shown, the detector 2 is a p...

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Abstract

The invention provides a balanced type optical fiber array biochemical spectrum light splitting device. The balanced type optical fiber array biochemical spectrum light splitting device is characterized by consisting of a light source, a sample cell, an optical fiber bundle receiving end, an optical fiber bundle output end and a detector, wherein the optical fiber bundle receiving end is insertedinto a sample cell fixing piece, the center of the optical fiber bundle receiving end is aligned to a light beam penetrating through a sample, and the optical fiber bundle output end is inserted intothe detector; and the fiber end of each optical fiber forming the optical fiber bundle output end is plated with a filter film with different parameters so as to achieve the purpose of light splitting, so that each optical fiber forming the optical fiber bundle can screen light with specified wavelength, and the light after light splitting is transmitted to the detector through the optical fiber bundle. The balanced type optical fiber array biochemical spectrum light splitting device can optimize the spatial position distribution of the optical fibers at the optical fiber bundle receiving endaccording to the spectral characteristics of the light source and the responsivity characteristics of different wavelengths of the detector, realize the balanced function, greatly improve the light splitting speed, realize multi-wavelength light splitting, improve the precision and stability of results and reduce the product cost, and can be widely applied in the fields of biochemical detection, biochemical analysis instruments and the like.

Description

Technical field[0001]The invention relates to a balanced optical fiber array biochemical spectroscopy device, which can be used in a biochemical analyzer, and belongs to the technical fields of biochemical detection, biochemical analysis instruments and the like.Background technique[0002]The biochemical analyzer is a routine analysis instrument for clinical use in hospitals. It is mainly used to determine various biochemical indicators in human body fluids, such as blood routine, myocardial enzyme spectrum, blood sugar and blood lipids, liver function, renal function, immunoglobulin, etc. index. Colorimetric or turbidity analysis is inseparable from the optical system. Therefore, the optical system is the most important basic component of the biochemical analyzer, which is mainly composed of a light source, a spectroscopic device and a detector. The quality of the optical system is directly related to the quality and stability of the analysis. The light emitted by the light source e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N21/01
CPCG01N21/31G01N21/01G01N2021/0112
Inventor 苑立波常钰琪
Owner GUILIN UNIV OF ELECTRONIC TECH
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