Totally-enclosed online near infrared spectrum analyzer
By employing a fully enclosed design and a gas source cleaning system, the problem of online near-infrared spectrometers being susceptible to external environmental influences has been solved, achieving high-precision detection and long-life use of optical components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AOPU TIANCHENG (WUHAN) OPTOELECTRONICS TECHNOLOGY CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-17
AI Technical Summary
Existing online near-infrared spectrometers are susceptible to external environmental influences, resulting in large errors in detection results, easy contamination of the lens, and short service life.
It adopts a fully enclosed design, including a housing, front panel, rear panel, window assembly and multiple sealing rings, forming a fully enclosed shell structure. Combined with an air source cleaning system, it prevents impurities from entering and keeps the optical components clean.
It effectively eliminates stray light and environmental influences, improves detection accuracy, extends the service life of lenses and light source components, and ensures the stable operation of spectrometers.
Smart Images
Figure CN224137182U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of spectroscopic instrument technology, and in particular to a fully enclosed online near-infrared spectrometer. Background Technology
[0002] An online near-infrared spectrometer is a real-time monitoring device based on near-infrared spectroscopy technology (wavelength range: 780-2500nm). It rapidly analyzes the chemical composition of samples (such as moisture, fat, and protein content) by detecting the absorption, scattering, or reflection characteristics of substances to near-infrared light. Its main applications include testing parameters such as moisture and protein in the grain industry, measuring parameters such as sweetness in fruit production lines (for small-diameter fruits like bayberries), and measuring parameters of chemical substances such as ethanol in the pharmaceutical and chemical industries.
[0003] In the existing technology, online near-infrared spectrometers adopt a semi-enclosed design, which is easily affected by the adverse effects of the external environment. This can lead to errors in the detection results of online near-infrared spectrometers due to the influence of stray light and the on-site environment. Furthermore, when online near-infrared spectrometers are in a semi-enclosed state, they cannot effectively clean foreign impurities. After prolonged use, the lens will become contaminated, and cleaning can only be done by disassembling the lens, which poses a risk of damaging the lens.
[0004] To address the above issues, a fully enclosed online near-infrared spectrometer was designed. Utility Model Content
[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a fully enclosed online near-infrared spectrometer that effectively eliminates the influence of stray light and the environment, improves the detection accuracy of the spectrometer, and extends the service life of the lens.
[0006] To achieve the aforementioned objectives of this utility model, the present disclosure adopts the following technical solution:
[0007] A fully enclosed online near-infrared spectrometer includes a housing, a front panel at one end of the housing, a rear panel at the other end of the housing, a first sealing ring between the front panel and the housing, and a second sealing ring between the rear panel and the housing.
[0008] The housing contains a spectrometer and a light source assembly, and a window assembly is provided on one outer wall of the housing for transmitting light outward.
[0009] In one exemplary embodiment of this disclosure, a base plate assembly is detachably disposed within the housing, and the spectrometer and the light source assembly are mounted on the base plate assembly.
[0010] In one exemplary embodiment of this disclosure, an opening is provided on the other side wall of the housing, and a hanging plate is detachably provided on the outer wall of the housing to close the opening, and a third sealing ring is provided between the hanging plate and the housing.
[0011] In one exemplary embodiment of this disclosure, the window panel assembly includes:
[0012] A cylinder is detachably mounted on one outer wall of the housing, and the cylinder is in communication with the housing.
[0013] A fourth sealing ring is disposed between the cylinder and the shell;
[0014] A window is disposed inside the cylinder, and the window is used to allow light to pass through.
[0015] In one exemplary embodiment of this disclosure, the window piece is detachably installed inside the cylinder via a window piece pressure plate, and a fifth sealing ring is provided between the window piece and the window piece pressure plate.
[0016] In one exemplary embodiment of this disclosure, a cleaning window is detachably provided at the end of the cylinder away from the housing, and an air nozzle is provided on the circumferential sidewall of the cleaning window;
[0017] The air nozzle can be connected to an air source.
[0018] In one exemplary embodiment of this disclosure, the outer surface of the front panel is provided with a front decorative panel.
[0019] In one exemplary embodiment of this disclosure, the outer surface of the rear panel is provided with a rear decorative panel.
[0020] The beneficial effects of this disclosure are:
[0021] (1) This disclosure uses a shell, front panel, rear panel, window assembly and multiple sealing rings to form a fully enclosed shell structure. The spectrometer and other instruments are installed in the shell structure. The structure is simple, has good protection performance for the spectrometer, can effectively eliminate the influence of stray light and the influence of the on-site environment, improve the detection accuracy of the spectrometer, and at the same time improve the service life of the spectrometer.
[0022] (2) This disclosure protects the spectrometer by using a fully enclosed shell structure, which can prevent impurities from entering the shell and the spectrometer, prevent damage to the spectrometer, prevent lens contamination, and improve the service life of the lens.
[0023] (3) The present invention transmits near-infrared light emitted by the spectrometer through the window assembly, and sprays clean air through the air nozzle connected to the air source to clean the window, keep the surface of the window clean, and improve the light transmission effect of the window assembly. Attached Figure Description
[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0025] Figure 1 This is a schematic diagram of a fully enclosed online near-infrared spectrometer according to one embodiment of the present disclosure;
[0026] Figure 2 This is an exploded schematic diagram of a fully enclosed online near-infrared spectrometer according to one embodiment of the present disclosure.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Housing; 2. Front panel; 3. Rear panel; 4. First sealing ring; 5. Second sealing ring; 6. Window panel assembly; 7. Base plate assembly; 8. Through port; 9. Hanging plate; 10. Third sealing ring; 11. Cylinder; 12. Fourth sealing ring; 13. Window panel; 14. Window panel pressure plate; 15. Fifth sealing ring; 16. Cleaning window; 17. Air nozzle; 18. Front decorative panel; 19. Rear decorative panel. Detailed Implementation
[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.
[0030] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.
[0031] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.
[0032] This disclosure provides a fully enclosed online near-infrared spectrometer. (See also...) Figure 1 and Figure 2 The device includes a housing 1, a front panel 2 at one end of the housing 1, a rear panel 3 at the other end of the housing 1, a first sealing ring 4 between the front panel 2 and the housing 1, and a second sealing ring 5 between the rear panel 3 and the housing 1; a spectrometer and a light source assembly are installed inside the housing 1, and a window assembly 6 is installed on one outer wall of the housing 1 for transmitting light outward.
[0033] In this embodiment, the fully enclosed online near-infrared spectrometer consists of a housing 1, a front panel 2, a rear panel 3, a window assembly 6, and a spectrometer and a light source assembly. The spectrometer and other instruments are installed inside the housing 1. The two ends of the housing 1 are closed by the front panel 2 and the rear panel 3, respectively, and sealed by the first sealing ring 4 and the second sealing ring 5. The window assembly 6 is installed on one side of the outer wall of the housing 1. The light emitted by the light source assembly is emitted through the window assembly 6, forming a fully enclosed shell structure to seal and protect the spectrometer and other instruments.
[0034] Compared to existing semi-enclosed online near-infrared spectrometers, this fully enclosed online near-infrared spectrometer features a fully enclosed housing structure consisting of a shell, front panel, rear panel, window assembly, and multiple sealing rings. The spectrometer and other instruments are housed within this enclosed structure. This design is simple, provides excellent protection for the spectrometer, effectively eliminates stray light and environmental influences, improves the spectrometer's detection accuracy, and extends its lifespan. It also prevents impurities from entering the housing and spectrometer, preventing damage and lens contamination, thus extending the lens's lifespan.
[0035] In one embodiment of this disclosure, the external wiring passes through one of the front panel 2 and the rear panel 3 and extends into the housing 1 to connect to the spectrometer.
[0036] In one example, external wiring extends through the front panel 2 into the housing 1 and connects to the spectrometer.
[0037] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 2A base plate assembly 7 is detachably installed inside the housing 1, and the spectrometer and light source assembly are mounted on the base plate assembly 7. In this way, the spectrometer and light source assembly can be easily installed inside the housing 1, thereby protecting the spectrometer and other instruments.
[0038] Understandably, the light source assembly is installed inside a fully enclosed housing structure to protect it and extend its lifespan.
[0039] The inventors tested the fully enclosed online near-infrared spectrometer of this application. The test results showed that the lifespan of the light source component of the fully enclosed online near-infrared spectrometer can exceed 10,000 hours.
[0040] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 2 An opening 8 is provided on the other side wall of the housing 1. This allows for the convenient installation of other components into the housing 1.
[0041] Optionally, see Figure 1 and Figure 2 A mounting plate 9 with a closed opening 8 is detachably installed on the outer wall of the housing 1, and a third sealing ring 10 is provided between the mounting plate 9 and the housing 1. In this way, the opening 8 can be sealed to achieve a fully enclosed housing structure, and at the same time, it is convenient to install this fully enclosed online near-infrared spectrometer on other equipment.
[0042] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 and Figure 2 The window assembly 6 includes: a cylinder 11, detachably mounted on one outer wall of the housing 1, and connected to the housing 1; and a window 13, disposed inside the cylinder 11, for transmitting light outward. This allows the light emitted by the light source assembly to be directed outward, facilitating detection by the spectrometer.
[0043] Optionally, see Figure 2 The fourth sealing ring 12 is located between the cylinder 11 and the shell 1. In this way, the cylinder 11 can be sealed, thereby achieving a fully enclosed shell structure and preventing impurities from entering the shell 1.
[0044] It is understandable that a through hole is provided on one side of the outer wall of the housing 1, through which the housing 1 communicates with the cylinder 11, and the fourth sealing ring 12 is located between the through hole and the cylinder 11.
[0045] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 2The window piece 13 is detachably installed inside the cylinder 11 via the window piece pressure plate 14, and a fifth sealing ring 15 is provided between the window piece 13 and the window piece pressure plate 14. In this way, the window piece 13 can be sealed and installed inside the cylinder 11, which facilitates the disassembly and replacement of the window piece 13; at the same time, it can seal the window piece assembly 6, realize a fully enclosed shell structure, and prevent impurities from entering the window piece assembly 6 and the shell 1.
[0046] Optionally, the cylinder 11, the window plate 14, and the fifth sealing ring 15 are connected by multiple screws.
[0047] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 and Figure 2 A cleaning window 16 is detachably provided at the end of the cylinder 11 away from the housing 1, and an air nozzle 17 is provided on the circumferential side wall of the cleaning window 16; wherein the air nozzle 17 can be connected to an air source. In this way, the surface of the window piece 13 can be cleaned by blowing air, keeping the surface of the window piece clean and improving the light transmission effect of the window piece assembly.
[0048] Optionally, the air source is used to continuously supply clean air to the air nozzle 17.
[0049] Optionally, the cleaning window 16 has multiple through holes on its circumferential sidewall, and the air nozzle 17 can be detachably installed in the through holes. In this way, the installation position of the air nozzle 17 can be adjusted arbitrarily, and the blowing direction of the air nozzle 17 can be adjusted.
[0050] Optionally, the airflow from the nozzle 17 is parallel to the surface of the window slab 13 to form an air curtain barrier to protect the window slab 13.
[0051] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 and Figure 2 The outer surface of the front panel 2 is provided with a front decorative panel 18, and the outer surface of the rear panel 3 is provided with a rear decorative panel 19. In this way, the aesthetics of the device of this application can be improved.
[0052] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.
Claims
1. A totally enclosed on-line near infrared spectrometer, characterized by, Includes a housing (1), a front panel (2) is provided at one end of the housing (1), a rear panel (3) is provided at the other end of the housing (1), a first sealing ring (4) is provided between the front panel (2) and the housing (1), and a second sealing ring (5) is provided between the rear panel (3) and the housing (1); The housing (1) is equipped with a spectrometer and a light source assembly. A window assembly (6) is provided on one side of the outer wall of the housing (1). The window assembly (6) is used to transmit light outward.
2. The totally-enclosed on-line near infrared spectroscopic analyzer according to claim 1, wherein A base plate assembly (7) is detachably disposed inside the housing (1), and the spectrometer and the light source assembly are mounted on the base plate assembly (7).
3. The totally-enclosed on-line near infrared spectroscopic analyzer according to claim 1, wherein, An opening (8) is provided on the other side wall of the housing (1), and a hanging plate (9) is detachably provided on the outer wall of the housing (1) to close the opening (8), and a third sealing ring (10) is provided between the hanging plate (9) and the housing (1).
4. The totally-enclosed on-line near infrared spectroscopic analyzer according to claim 1, wherein, The window panel assembly (6) includes: A cylinder (11) is detachably mounted on one side of the outer wall of the housing (1), and the cylinder (11) is connected to the housing (1); A fourth sealing ring (12) is disposed between the cylinder (11) and the shell (1); A window (13) is disposed inside the cylinder (11) and is used to transmit light outward.
5. The totally-enclosed on-line near infrared spectroscopic analyzer according to claim 4, wherein The window piece (13) is detachably installed inside the cylinder (11) via the window piece pressure plate (14), and a fifth sealing ring (15) is provided between the window piece (13) and the window piece pressure plate (14).
6. The totally-enclosed on-line near infrared spectroscopic analyzer according to claim 4, wherein A cleaning window (16) is detachably provided at one end of the cylinder (1) away from the shell (1), and an air nozzle (17) is provided on the circumferential side wall of the cleaning window (16); The air nozzle (17) is connected to an air source.
7. The totally-enclosed on-line near infrared spectroscopic analyzer according to claim 1, wherein The outer surface of the front panel (2) is provided with a front decorative panel (18).
8. The totally-enclosed on-line near infrared spectroscopic analyzer according to claim 1, wherein, The outer surface of the rear panel (3) is provided with a rear decorative panel (19).