Dual light source colorimeter

Abstract

The utility model discloses a kind of double light source colorimetric analyzers, it is related to colorimetric analyzer technical field, including sleeve, the inside of sleeve is provided with PCB fixing piece and optical fiber fixing piece, the inside of optical fiber fixing piece is provided with LED optical filter, the side of LED optical filter is correspondingly provided with light source assembly, the light source assembly includes side-by-side arrangement LED lamp and monochromatic laser lamp, sleeve is made of stainless steel material, inside pastes light shielding bubble cotton, the utility model solves the problem that the colorimetric analyzer of present only using LED light supplement can lead to measurement range limited, while measurement environment exists external light interference photoelectric signal acquisition problem, the light shielding bubble cotton pasted in the utility model through sleeve inside, both can absorb internal stray light, also can fill up the tiny gap of component splicing, effectively prevent environmental light infiltration, realize double light source setting by LED lamp and monochromatic laser lamp collocation, guarantee light source stability, reduce chroma calculation error caused by wavelength shift.

Description

Technical Field

[0001] This utility model relates to the field of colorimetric analyzer technology, specifically a dual-light source colorimetric analyzer. Background Technology

[0002] A colorimeter is an instrument used to measure the color and color difference reflected by an object, measure ISO brightness and the fluorescence whitening degree of fluorescent whitening materials, measure CIE whiteness, measure ceramic whiteness, measure the whiteness of building materials and non-metallic mineral products, measure yellowness, measure the opacity, transparency, light scattering coefficient and light absorption coefficient of a sample, and measure the absorption value of ink. It is widely used in industries such as papermaking, printing, ceramics, chemicals, textile printing and dyeing, building materials, grain, and salt production.

[0003] Current colorimeters that only use LED supplementary lighting are limited in measurement range and have poor accuracy due to the inherent characteristics of LEDs and insufficient adaptability to different scenarios. In addition, the light intensity of LED supplementary lighting is usually low. If there is ambient light in the measurement environment, the ambient light will directly mix into the optical path of the LED supplementary lighting, interfering with the acquisition of photoelectric signals.

[0004] To address the aforementioned issues, a dual-source colorimetric analyzer is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a dual-light source colorimetric analyzer, which solves the problem that current colorimetric analyzers in the background technology only use LED supplementary lighting, which leads to limited measurement range and accuracy deviation due to the insufficient characteristics of LEDs and scene adaptability. At the same time, LED supplementary lighting is mostly directional, and if a single LED shines directly, it will cause uneven illumination on the sample surface.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dual-source colorimetric analyzer, comprising a sleeve, a middle shell threadedly connected to one side of the sleeve, a fixing block inserted into one side of the middle shell, a PCB fixing component connected to one side of the fixing block, an optical fiber inserted into one side of the PCB fixing component, an optical fiber fixing component inserted into one side of the optical fiber, an LED filter disposed inside the optical fiber fixing component, a light source assembly disposed correspondingly on one side of the LED filter, the light source assembly comprising an LED lamp and a monochrome laser lamp arranged side by side, a top cover disposed at one end of the light source assembly, the top cover being sleeved with the sleeve, the sleeve being made of stainless steel and having light-shielding foam pasted inside.

[0007] Preferably, an anti-twist cable connector is threaded onto one side of the top cover, and an electric wire is connected to one side of the anti-twist cable connector.

[0008] Preferably, two sets of sealing rings A are fitted side by side on one side of the top cover, and the sealing rings A are engaged and embedded with one end of the sleeve.

[0009] Preferably, a receiver fixing member is fixedly disposed on one side of the PCB fixing member, and a receiver is sleeved in the receiver fixing member.

[0010] Preferably, a turbidity motor is fixedly mounted on one side of the fixed block, the output end of the turbidity motor is connected to an extension shaft, and a sealing ring B is provided between the extension shaft and the fixed block.

[0011] Preferably, one end of the sealing ring B is snapped with a cleaning pressure plate A, a scraper is attached to one side of the cleaning pressure plate A, and a cleaning pressure plate B is attached to one side of the scraper. The cleaning pressure plate A, the scraper, and the cleaning pressure plate B are fixed by screws, and the scraper is rotatably mounted on one side of the middle shell.

[0012] Preferably, the two ends of the middle shell are symmetrically arranged with a sealing ring C, a lens, and a lens retaining ring at positions colinear with the optical fiber.

[0013] Preferably, one end of the lens retaining ring is inserted with a receiver, one end of the middle shell is threadedly connected to a rear shell that fixes the receiver, and a sealing ring D is provided between the middle shell and the rear shell, and between the middle shell and the sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The present invention provides a dual-source colorimetric analyzer. By setting a sleeve, the sleeve is set on the outside of the light source component. The light-shielding foam pasted inside the sleeve can not only absorb internal stray light, but also fill the small gaps between the components, effectively preventing ambient light from seeping in. This solves the problem that the light intensity of LED supplementary light in current colorimetric analyzers is usually low. If there is ambient light in the measurement environment, the ambient light will directly mix into the light path of the LED supplementary light and interfere with the acquisition of photoelectric signals.

[0015] 2. This utility model provides a dual-source colorimetric analyzer. It achieves precise supplemental lighting by aligning the light source assembly with an optical fiber sleeved within an optical fiber fixing component. The dual-source setup utilizes both LEDs and a monochromatic laser. Each LED is equipped with an LED filter to optimize the emitted light, selecting the target wavelength and filtering stray light. The LEDs are white LEDs, covering a broad spectrum of colorimetric measurements. The monochromatic laser provides precise measurement of specific wavelengths, such as fluorescent samples. This dual-source compensation setup ensures light source stability and reduces colorimetric calculation errors caused by wavelength shifts. It solves the problem of limited measurement range and accuracy deviations caused by current colorimetric analyzers that rely solely on LED supplemental lighting, due to the inherent characteristics of LEDs and insufficient scene adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall explosive structure of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of a partial assembly structure of the present invention; Figure 4 This is a schematic diagram of the overall explosive structure of this utility model. Figure 2 .

[0017] In the diagram: 1. Wire; 2. Anti-twist cable connector; 3. Top cover; 4. Sealing ring A; 5. Light source assembly; 51. LED lamp; 52. Monochrome laser lamp; 6. LED filter; 7. Fiber optic fastener; 8. Fiber optic cable; 9. Receiver fastener; 10. Receiver; 11. Sleeve; 12. Turbidity motor; 13. Fixing block; 14. PCB fastener; 15. Sealing ring B; 16. Extension shaft; 17. Lens pressure ring; 18. Lens; 19. Sealing ring C; 20. Sealing ring D; 21. Middle shell; 22. Cleaning plate A; 23. Scraper blade; 24. Cleaning plate B; 25. Rear shell. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0020] Combination Figure 1 This utility model discloses a dual-source colorimetric analyzer, including a sleeve 11. A middle shell 21 is threadedly connected to one side of the sleeve 11. A fixing block 13 is inserted into one side of the middle shell 21. A PCB fixing component 14 is connected to one side of the fixing block 13. An optical fiber 8 is inserted into one side of the PCB fixing component 14. An optical fiber fixing component 7 is inserted into one side of the optical fiber 8. An LED filter 6 is disposed inside the optical fiber fixing component 7. A light source assembly 5 is disposed on one side of the LED filter 6. The light source assembly 5 includes an LED lamp 51 and a monochrome laser lamp 52 arranged side by side. A top cover 3 is disposed at one end of the light source assembly 5. The top cover 3 is sleeved with the sleeve 11. The sleeve 11 is made of stainless steel and has light-shielding foam pasted inside.

[0021] Specifically, the sleeve 11 is set on the outside of the light source assembly 5. The light-shielding foam pasted inside the sleeve 11 can absorb internal stray light and fill the tiny gaps between the components, effectively preventing ambient light from seeping in. One side of the optical fiber 8 is sleeved in the optical fiber fixing piece 7 and aligned with the light source assembly 5 to achieve precise supplemental lighting. The LED lamp 51 is set individually and is paired with the LED filter 6 to optimize the emitted light, select the light of the target wavelength, and filter stray light. The LED lamp 51 is a white LED, covering a wide spectrum of colorimetric measurement. The monochromatic laser lamp 52 is used for precise measurement of specific wavelengths, such as fluorescent samples. The dual light source compensation setting of the light source assembly 5 ensures the stability of the light source and reduces the colorimetric calculation error caused by wavelength shift.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Example 1: Combination Figures 1-4 One side of the top cover 3 is threaded with an anti-twist cable connector 2, and one side of the anti-twist cable connector 2 is connected to a wire 1. After the top cover 3 is connected to the anti-twist cable connector 2, it has a hollow structure with a built-in wire that is electrically connected to the wire 1. One end of the wire 1 is connected to the main control module of the analyzer. After receiving the digital signal, the main control module transmits it to the software system for colorimetric calculation and controls the switching of the light source and other actions, responding to user operation commands.

[0024] Two sets of sealing rings A4 are fitted side by side on one side of the top cover 3. The sealing rings A4 are engaged and embedded with one end of the sleeve 11. The side-by-side arrangement of the two sets of sealing rings A4 enables the top cover 3 and the sleeve 11 to be fitted together.

[0025] A receiver fixture 9 is fixedly installed on one side of the PCB fixture 14. A receiver 10 is sleeved in the receiver fixture 9. The receiver fixture 9 is located on one side of the PCB fixture 14. The receiver 10 directly receives the original light emitted by the light source assembly 5 and monitors the brightness and wavelength stability of the light source in real time. When the brightness of the light source decreases due to the increase in temperature, the reference receiver will capture the signal change immediately.

[0026] A turbidity motor 12 is fixedly installed on one side of the fixed block 13. The output end of the turbidity motor 12 is connected to an extension shaft 16. A sealing ring B15 is provided between the extension shaft 16 and the fixed block 13. The turbidity motor 12 drives the extension shaft 16 to rotate, and the sealing ring B15 is engaged between the extension shaft 16 and the fixed block 13 to provide sealing protection.

[0027] One end of the sealing ring B15 is engaged with a cleaning plate A22. A scraper 23 is attached to one side of the cleaning plate A22, and a cleaning plate B24 is attached to one side of the scraper 23. The cleaning plate A22, the scraper 23, and the cleaning plate B24 are fixed by screws. The scraper 23 is rotatably mounted on one side of the middle shell 21. The sealing ring B15 controls the rotation of the scraper 23 within the middle shell 21. The cleaning plate B24 and the cleaning plate A22 are used to fix the scraper 23. The scraper 23 can remove sample residue and surface contaminants of optical components within the middle shell 21, preventing the sample from the previous measurement from interfering with subsequent detections. At the same time, it protects optical components such as the lens 18, ensures the transparency of the light path, and maintains stable measurement accuracy.

[0028] Example 2: Combination Figures 1-4 The two ends of the middle shell 21 are mirror-symmetrically arranged with sealing rings C19, lenses 18 and lens pressure rings 17 at the positions collinear with the optical fiber 8. The two sets of sealing rings C19 on both sides are used for sealing, and the lens pressure rings 17 are used to pressurize and fix the lenses 18 to form a light source path.

[0029] A receiver 10 is inserted into one end of the lens retaining ring 17, and a rear shell 25 for fixing the receiver 10 is threaded to one end of the middle shell 21. A sealing ring D20 is provided between the middle shell 21 and the rear shell 25, and between the middle shell 21 and the sleeve 11. The receiver 10 inserted into the lens retaining ring 17 is installed on the light-transmitting side of the sample and receives the light signal passing through the sample. It is mainly used to measure the color of transparent or translucent samples such as liquids, films, and glass, and to calculate parameters such as transmittance and color purity. The rear shell 25 achieves sealing and fixing of one end of the analyzer, and the sealing ring D20 seals both sides of the middle shell 21.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-source colorimetric analyzer, comprising a sleeve (11), characterized in that: One side of the sleeve (11) is threaded with a middle shell (21), and a fixing block (13) is inserted into one side of the middle shell (21). A PCB fixing component (14) is connected to one side of the fixing block (13). An optical fiber (8) is inserted into one side of the PCB fixing component (14). An optical fiber fixing component (7) is inserted into one side of the optical fiber (8). An LED filter (6) is provided inside the optical fiber fixing component (7). A light source assembly (5) is provided on one side of the LED filter (6). The light source assembly (5) includes an LED lamp (51) and a monochrome laser lamp (52) arranged side by side. A top cover (3) is provided at one end of the light source assembly (5). The top cover (3) is sleeved with the sleeve (11). The sleeve (11) is made of stainless steel and has light-shielding foam pasted inside.

2. The dual-source colorimetric analyzer according to claim 1, characterized in that: The top cover (3) is threaded with an anti-twist cable connector (2) on one side, and an electric wire (1) is connected to one side of the anti-twist cable connector (2).

3. The dual-source colorimetric analyzer according to claim 1, characterized in that: Two sets of sealing rings A (4) are fitted side by side on one side of the top cover (3), and the sealing rings A (4) are engaged and embedded with one end of the sleeve (11).

4. The dual-source colorimetric analyzer according to claim 1, characterized in that: A receiver fastener (9) is fixedly installed on one side of the PCB fastener (14), and a receiver (10) is sleeved in the receiver fastener (9).

5. A dual-source colorimetric analyzer according to claim 1, characterized in that: A turbidity motor (12) is fixedly installed on one side of the fixed block (13). An extension shaft (16) is connected to the output end of the turbidity motor (12). A sealing ring B (15) is provided between the extension shaft (16) and the fixed block (13).

6. A dual-source colorimetric analyzer according to claim 5, characterized in that: One end of the sealing ring B (15) is snapped with a cleaning plate A (22). A scraper (23) is attached to one side of the cleaning plate A (22), and a cleaning plate B (24) is attached to one side of the scraper (23). The cleaning plate A (22), the scraper (23) and the cleaning plate B (24) are fixed by screws. The scraper (23) is rotatably mounted on one side of the middle shell (21).

7. A dual-source colorimetric analyzer according to claim 1, characterized in that: The two ends of the middle shell (21) are symmetrically arranged with a sealing ring C (19), a lens (18) and a lens pressure ring (17) at the positions where they are collinear with the optical fiber (8).

8. A dual-source colorimetric analyzer according to claim 7, characterized in that: A receiver (10) is inserted into one end of a set of lens pressure rings (17), and a rear shell (25) for fixing the receiver (10) is threaded to one end of the middle shell (21). A sealing ring D (20) is provided between the middle shell (21) and the rear shell (25), and between the middle shell (21) and the sleeve (11).

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