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Colorimetric device with cluster light-source monocolor unit

A monochromator and cluster technology, applied in optics, instruments, nonlinear optics, etc., can solve the problem of not being able to adapt to the requirements of rapid and on-site analysis and measurement, and achieve stable light source intensity, improve measurement accuracy, and improve stability. Effect

Inactive Publication Date: 2007-04-04
CHANGCHUN JILIN UNIV LITTLE SWAN INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the original instrument, the light source, monochromator, colorimetric cell and detector are placed in separate parts and need to be finely adjusted before use, which cannot meet the current requirements for rapid and on-site analysis and determination

Method used

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  • Colorimetric device with cluster light-source monocolor unit
  • Colorimetric device with cluster light-source monocolor unit
  • Colorimetric device with cluster light-source monocolor unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] One of the implementations is shown in FIG. 1 . The colorimetric device includes two parts: a body 1 and a fixing ring 2 , and the fixing ring 2 is screwed on the body 1 . As shown in Figure 3, the outer surface of the body 1 main body 31 is a cube structure, and the inner surface is a cylindrical cavity with a closed bottom end, and the diameter of the cylinder is matched with the colorimetric bottle that will be placed therein in the future; On the surface, a group of ultra-bright light-emitting diodes 35 are embedded, and on the faces opposite to the two sides, photodetectors 32 are respectively embedded, that is to say, the photodetectors 32 are installed on the corresponding surface of the ultra-bright light-emitting diode light source. on, used to receive light signals from the light source; threaded section 33 is provided on the upper part of the cube structure main body 31 for connection with the fixed ring 2, and the uppermost end of the threaded section 33 is p...

Embodiment 2

[0037] Figure 4 and Figure 5 show another embodiment of the colorimetric device of the present invention. In this way, the difference from Embodiment 1 is that the outside of the body 1 main body 31 of the colorimetric device is a hexagonal prism structure, and a group of super bright light-emitting diodes 35 and A photodetector 32, and each adjacent surface light-emitting diode 35 and the position of photodetector 32 mounting are staggered up and down, so that the light emitted from the light-emitting diode 35 on one of them passes through the colorimetric bottle placed in the body 1 Afterwards, it is illuminated on the photodetector 32 on the corresponding surface.

Embodiment 3

[0039]Figure 6 and Figure 7 show yet another embodiment of the colorimetric device of the present invention. In this mode, the difference from Embodiment 1 is that the outside of the body 1 main body 31 of the colorimetric device is a cuboid structure, and the inner surface is also a cuboid inner groove 36 with a closed bottom, thereby forming a trough-type body 1; The colorimetric device can use a square cuvette as a container for containing the sample, and the inner diameter of the inner groove 36 of the body 1 matches the outer diameter of the cuvette placed therein during use, so that the cuvette can be conveniently picked and placed. , the uppermost section of the body 1 main body 31 has two gaps 37. During use, the cuvette is placed in the inner groove 36 of the body 1, and then screwed with the fixed ring 2 through the helical section 33 (see Figure 7 state ).

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Abstract

A colorimetric device of monochromator with cluster light source is prepared as using hollow symmetric cylinder with bottom end being sealed as body of monochronmator, embedding a group of super bright LED on wall surface of cylinder and simultaneously embedding a photoelectric detector at relevant position on opposite wall surface of cylinder. The prepared device can be width used on analyzer of photometry.

Description

technical field [0001] The invention relates to a colorimetric device used in a photometric analysis instrument, in particular to a cluster type ultra-bright light-emitting diode light source / monochromator colorimetric device with long service life, good stability and high precision. Background technique [0002] Spectrophotometry is an analysis method established based on the selective absorption of light by substances, and it is also one of the instrumental analysis methods widely used at present. The theoretical basis of spectrophotometry is the Lamber-Beer law. Sensitivity and precision are two important technical parameters. The stability and service life of the light source and whether the monochromator can emit high-purity monochromatic light are one of the reasons that affect the sensitivity and precision of the instrument. [0003] Instruments using photometry are generally composed of a light source, a monochromator, a colorimetric cell, a detector, and a display ...

Claims

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Application Information

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IPC IPC(8): G01N21/31G02F1/015
Inventor 于爱民王振德
Owner CHANGCHUN JILIN UNIV LITTLE SWAN INSTR
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