Optical analysis device based on dual-wavelength synchronous detection

Abstract

The utility model discloses an optical analysis device based on double wavelength synchronous detection, including receiver seat one and receiver seat two, and its end all is equipped with receiver shielding cover, the receiver seat two bottom is connected with the colorimetric cell seat, and the colorimetric cell seat inserts the colorimetric cell, and the colorimetric cell seat bottom is equipped with the optical support seat, the both sides of receiver seat two upper and lower are equipped with the installation plane, and one end of receiver seat two is equipped with the installation slot, and the installation slot is installed the light path transmission module, the top of light path transmission module and its inside are installed dichroic filter and reflector respectively, in the utility model discloses, two different wavelength light is separated and is guided through reflector through dichroic filter, forms two independent and synchronous detection light path, in the testing process, one wavelength can be as the measuring signal, and another wavelength can be as reference signal, through the synchronous comparison and data processing of double wavelength signal, can effectively eliminate the common interference by sample turbidity, background absorption, light source fluctuation and device aging etc. Non-specific factor introduction.

Description

Technical Field

[0001] This utility model specifically relates to an optical analysis device based on dual-wavelength synchronous detection. Background Technology

[0002] Traditional optical analysis devices mostly employ single-wavelength light sources, achieving different wavelength detection through filter wheels or mechanical switching. This type of analysis device suffers from poor light source stability, is susceptible to temperature fluctuations leading to signal drift, and requires precision mechanical components for the filter wheels and fiber optic guidance systems, resulting in a high failure rate and difficulties in optical path calibration. Furthermore, the color, turbidity, or background fluorescence of the analyte can significantly interfere with the detection results. Time-division switching of wavelengths requires multiple measurements, making it impossible to acquire multi-wavelength data synchronously in real time, thus failing to meet the needs of dynamic analysis.

[0003] Therefore, it is necessary to invent an optical analysis device based on dual-wavelength synchronous detection to solve the above problems. Utility Model Content

[0004] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes an optical analysis device based on dual-wavelength synchronous detection.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an optical analysis device based on dual-wavelength synchronous detection, comprising a receiver base one and a receiver base two, wherein both the receiver base one and the receiver base two are provided with receiver shielding covers at their ends; The receiver base 2 is connected to a colorimeter cell base at its bottom, a colorimeter cell is inserted into the colorimeter cell base, and an optical support base is provided at the bottom of the colorimeter cell base; The receiver base 2 has mounting surfaces on its upper and lower sides, and a mounting groove at one end of the receiver base 2, in which an optical path transmission module is installed. The optical path transmission module is equipped with a color separation sheet and a reflector on its top and inside, respectively, and the color separation sheet and the reflector are set at a 45° angle. The colorimetric cell holder is equipped with a focusing lens, which focuses light onto the sample in the colorimetric cell; The receiver base one is vertically fixed to the top of the receiver base two.

[0006] Preferably, the receiver shielding cover is fixed to the ends of the receiver base one and the receiver base two by bolts. The upper and lower surfaces of one end of the receiver base two are the mounting planes. The receiver base one is fixed on the upper mounting plane and the colorimeter cell base is installed on the lower mounting plane.

[0007] Preferably, the optical path transmission module is fixed in the mounting groove by bolts, and the top and inside of the optical path transmission module are provided with lens mounting plates. The lens mounting plates inside are set at an angle to the inner wall of the optical path transmission module. Each lens mounting plate is provided with a lens mounting hole, and the color separator and the reflector are installed in the lens mounting holes.

[0008] Preferably, the overall dimensions of the optical transmission module match the internal dimensions of the mounting slot.

[0009] Preferably, the top of the colorimeter base is provided with a focusing lens mounting hole, the focusing lens is installed in the focusing lens mounting hole, the bottom of the colorimeter base is also provided with a positioning groove, and a positioning block installed in the positioning groove is provided on one side of the top of the optical support base, and the colorimeter is inserted into one side of the positioning block.

[0010] Preferably, the colorimetric cell is installed at a position at least above the position of the focusing lens.

[0011] Preferably, the bottom of the optical support base extends with a mounting block.

[0012] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: 1. The device of this utility model adopts a layered structure in which receiver base one is vertically fixed on the top of receiver base two, and combined with the bottom optical support base, a stable rigid support frame is formed; each module is precisely connected and fixed through structures such as mounting plane, positioning groove and positioning block, which effectively reduces the influence of environmental vibration and deformation on the optical path, and ensures the long-term stability of the optical system and the repeatability of measurement. 2. In this invention, two different wavelengths of light are separated by a color separator and guided by a reflector to form two independent and synchronously detected optical paths. During the test, one wavelength can be used as a measurement signal and the other wavelength can be used as a reference signal. Through synchronous comparison and data processing of the dual-wavelength signals, the common interference introduced by non-specific factors such as sample turbidity, background absorption, light source fluctuation and device aging can be effectively eliminated, thereby significantly improving the accuracy and reliability of the analysis results. 3. The color separator and reflector inside the optical path transmission module of this utility model are set at a 45° angle, forming a precise optical path turning core. This ensures that the two incident lights of different wavelengths can be efficiently separated and accurately turned, ultimately forming a stable 90-degree dispersed optical path. The setting of the focusing lens efficiently converges the light signal onto the sample in the colorimetric cell, improving the light energy utilization and detection sensitivity. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the disassembled upper receiving base of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the disassembled upper receiving base of this utility model. Figure 2 ; Figure 4 This is a disassembled schematic diagram of the lower colorimetric cell installation structure of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Receiver base one; 2. Receiver base two; 21. Mounting plane; 22. Mounting slot; 3. Receiver shielding cover; 4. Colorimeter cell base; 41. Focusing lens; 42. Focusing lens mounting hole; 43. Positioning slot; 5. Colorimeter cell; 6. Optical support base; 61. Positioning block; 62. Mounting block; 7. Optical path transmission module; 71. Color separator; 72. Reflector; 73. Lens mounting plate; 74. Lens mounting hole. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-4 The optical analysis device based on dual-wavelength synchronous detection shown includes receiver base 1 and receiver base 2, and both receiver base 1 and receiver base 2 are provided with receiver shielding cover 3 at their ends; The receiver base 2 has a cuvette base 4 connected to its bottom, a cuvette 5 inserted inside the cuvette base 4, and an optical support base 6 at the bottom of the cuvette base 4. The receiver base 2 has mounting surfaces 21 on the upper and lower sides, and a mounting groove 22 at one end of the receiver base 2. An optical path transmission module 7 is installed in the mounting groove 22. A color separation sheet 71 and a reflector 72 are respectively installed on the top and inside of the optical path transmission module 7, with the color separation sheet 71 and the reflector 72 set at a 45° angle. A focusing lens 41 is provided on the colorimetric cell holder 4, which focuses light onto the sample in the colorimetric cell 5; Receiver base 1 is vertically fixed to the top of receiver base 2.

[0018] Specifically, the receiver shielding cover 3 is fixed to the ends of receiver base 1 and receiver base 2 by bolts. The upper and lower surfaces of one end of receiver base 2 are mounting planes 21. Receiver base 1 is fixed on the upper mounting plane 21, and the lower mounting plane 21 is connected to the colorimeter cell base 4.

[0019] Specifically, the optical path transmission module 7 is fixed in the mounting slot 22 by bolts, and the top and inside of the optical path transmission module 7 are provided with lens mounting plates 73. The internal lens mounting plate 73 is set at 45° with the inner wall of the optical path transmission module 7. The lens mounting plate 73 is provided with lens mounting holes 74. The color separation film 71 and the reflector 72 are installed in the lens mounting holes 74.

[0020] Specifically, the overall dimensions of the optical path transmission module 7 match the internal dimensions of the mounting slot 22.

[0021] Specifically, the top of the colorimeter cell base 4 is provided with a focusing lens mounting hole 42, and the focusing lens 41 is installed in the focusing lens mounting hole 42. The bottom of the colorimeter cell base 4 is also provided with a positioning groove 43. The top side of the optical support base 6 is provided with a positioning block 61 installed in the positioning groove 43, and the colorimeter cell 5 is inserted into one side of the positioning block 61.

[0022] Specifically, the colorimetric cell 5 is mounted at least beyond the mounting position of the focusing lens 41.

[0023] Specifically, the bottom of the optical support 6 extends a mounting block 62.

[0024] In this embodiment, the optical support 6 and the colorimeter cell base 4 are installed by taking the optical support 6, whose bottom-extending mounting block 62 can be used to fix it to external equipment, improving the overall stability of the device. The positioning groove 43 at the bottom of the colorimeter cell base 4 is aligned with the positioning block 61 at the top of the optical support 6, and the two are slowly inserted to make them fit precisely, achieving the initial positioning of the colorimeter cell base 4. This positioning structure can ensure the coaxiality of subsequent optical components.

[0025] Specifically, a focusing lens 41 is installed into the focusing lens mounting hole 42 of the cuvette base 4. During installation, the lens surface must be kept clean to avoid fingerprints or scratches affecting the light focusing effect. Then, the cuvette 5 is inserted into the cuvette base 4 from one side of the positioning block 61 of the optical support 6, ensuring that the installation position of the cuvette 5 is at least higher than the installation position of the focusing lens 41, so that the focusing lens can completely focus the light onto the sample in the cuvette.

[0026] Specifically, the upper and lower surfaces of one end of the receiver base 2 are both machined into mounting planes 21. The lower mounting plane 21 is then fitted to the corresponding position on the top of the already positioned colorimeter cell base 4 and fixed with bolts to ensure a firm and tight connection between the two, providing a stable foundation for the subsequent installation of the optical path transmission module.

[0027] In this embodiment, the assembly of the optical path transmission module 7 involves first installing a dichroic filter 71 and a reflector 72 on the lens mounting plate 73 of the optical path transmission module 7. The inner lens mounting plate 73 is at a preset angle of 45° to the inner wall of the optical path transmission module 7. The dichroic filter 71 is installed in the lens mounting hole 74 of the top lens mounting plate 73, and the reflector 72 is installed in the inner 45° inclined lens mounting plate 73, ensuring that the dichroic filter 71 and the reflector 72 are set at a 45° angle. Then, the assembled optical path transmission module 7 is installed into the mounting slot 22 of the receiver base 2, with its overall dimensions precisely matching the internal dimensions of the mounting slot 22. Finally, the optical path transmission module 7 is fixed in the mounting slot 22 with bolts, completing the assembly of the optical path steering component.

[0028] In this embodiment, the lens mounting plate 73 of the optical path transmission module 7 must strictly maintain a 45° tilt angle to ensure the optical path turning accuracy of the dichroic filter 71 and the reflector 72; after the focusing lens 41 is installed, it is necessary to confirm that its optical axis coincides with the central axis of the colorimeter cell 5 through a calibration tool; all bolt connections must be tightened evenly to avoid deformation of components due to uneven force, which would affect the stability of the optical path.

[0029] In this embodiment, after the incident light enters the optical path transmission module 7, it first acts on the dichroic filter 71 set at 45°. The dichroic filter 71 reflects one wavelength of light to the receiver in the receiver base 2, while allowing the other wavelength of light to pass through and be projected onto the reflector 72, which is also set at 45°. The reflector 72 reflects the transmitted light to the receiver in the receiver base 1. During this process, the focusing lens 41 on the cuvette base 4 accurately focuses the two wavelengths of light onto the sample in the cuvette 5, realizing the synchronous absorption and detection of dual-wavelength light by the sample, thus solving the efficiency problem of traditional single-wavelength devices that require multiple wavelength switching for detection.

[0030] In this embodiment, the colorimeter cell base 4 and the optical support base 6 are precisely positioned through the interlocking of the positioning groove 43 and the positioning block 61. The size matching design of the optical path transmission module 7 and the mounting groove 22 and the fixed angle of the lens mounting plate 73 ensure the coaxiality of the color separator, reflector, focusing lens and colorimeter cell, effectively reducing the detection error caused by optical path offset.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An optical analysis device based on dual-wavelength synchronous detection, characterized in that: It includes a receiver base one (1) and a receiver base two (2), and both the receiver base one (1) and the receiver base two (2) are provided with receiver shielding covers (3) at their ends; The receiver base (2) is connected to a colorimeter base (4) at the bottom, a colorimeter (5) is inserted into the colorimeter base (4), and an optical support base (6) is provided at the bottom of the colorimeter base (4). The receiver base (2) has mounting surfaces (21) on both the upper and lower sides, and a mounting groove (22) is provided at one end of the receiver base (2). An optical path transmission module (7) is installed in the mounting groove (22). The optical path transmission module (7) is equipped with a color separation sheet (71) and a reflector sheet (72) on its top and inside, respectively, and the color separation sheet (71) and the reflector sheet (72) are set at a 45° angle. The colorimetric cell holder (4) is provided with a focusing lens (41), which focuses light onto the sample in the colorimetric cell (5); The receiver base one (1) is vertically fixed to the top of the receiver base two (2).

2. The optical analysis device based on dual-wavelength synchronous detection according to claim 1, characterized in that: The receiver shielding cover (3) is fixed to the ends of the receiver base one (1) and the receiver base two (2) by bolts. The upper and lower surfaces of one end of the receiver base two (2) are the mounting plane (21). The receiver base one (1) is fixed on the mounting plane (21) above it, and the colorimeter cell base (4) is installed on the mounting plane (21) below it.

3. The optical analysis device based on dual-wavelength synchronous detection according to claim 1, characterized in that: The optical path transmission module (7) is fixed in the mounting groove (22) by bolts, and the top and inside of the optical path transmission module (7) are provided with lens mounting plates (73). The lens mounting plates (73) inside are set at 45° with the inner wall of the optical path transmission module (7). The lens mounting plates (73) are provided with lens mounting holes (74). The color separation film (71) and the reflector (72) are installed in the lens mounting holes (74).

4. The optical analysis device based on dual-wavelength synchronous detection according to claim 3, characterized in that: The overall dimensions of the optical transmission module (7) match the internal dimensions of the mounting slot (22).

5. The optical analysis device based on dual-wavelength synchronous detection according to claim 1, characterized in that: The colorimeter base (4) is provided with a focusing lens mounting hole (42) at the top, and the focusing lens (41) is installed in the focusing lens mounting hole (42). The colorimeter base (4) is also provided with a positioning groove (43) at the bottom. The optical support base (6) is provided with a positioning block (61) installed in the positioning groove (43) on one side of the top, and the colorimeter (5) is inserted into one side of the positioning block (61).

6. The optical analysis device based on dual-wavelength synchronous detection according to claim 5, characterized in that: The colorimeter cell (5) is installed at a position at least above the position of the focusing lens (41).

7. The optical analysis device based on dual-wavelength synchronous detection according to claim 1, characterized in that: The bottom of the optical support (6) extends a mounting block (62).

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