Portable near infrared spectrum analyzer

Abstract

The utility model relates to the technical field of near infrared spectrum detection, in particular to a portable near infrared spectrum analyzer which comprises a box body upper cover and a box body lower shell which are of an up-down opening and closing structure, an upper panel is fixed in the box body upper cover, an industrial personal computer is fixed on the upper panel through a screen fixing support, and the industrial personal computer is provided with an antenna for wireless communication; according to the utility model, the light source and the spectrograph are built-in and added with protection, a light path is externally arranged through the optical fiber, various signals such as projection, reflection, scattering, fluorescence and the like can be measured, and the measurement mode is flexible; a detection sample rack is freely matched, various measurement models are arranged in the system, the system can be suitable for various types of sample detection scenes, a liquid sample measurement rack, a solid sample measurement rack and various accessories are configured, free combination is achieved, the functions are comprehensive, the DIY capacity is high, and use is flexible; the system has data storage, analysis and processing capabilities, can upload data to a platform in real time through a wireless network, and meets the requirements of some special application scenes.

Description

Technical Field

[0001] This utility model relates to the field of near-infrared spectroscopy detection technology, specifically a portable near-infrared spectroscopy analyzer. Background Technology

[0002] Near-infrared spectroscopy (NIRS) is a spectroscopic analysis technique based on the near-infrared region (approximately 700 nm to 2500 nm) of the electromagnetic spectrum. It originated in the field of chemical analysis in the 1950s, and with the development and maturation of the technology, it has gradually expanded to various fields, including agriculture, food, and medicine.

[0003] Near-infrared spectroscopy (NIRS) is based on the absorption characteristics of different molecules in the near-infrared region. Different chemical bonds (such as OH, NH, CH, etc.) have specific absorption peaks in this region, and the characteristics of these peaks can be used to analyze the composition and structure of substances. This analytical method requires no complex sample preparation and can complete detection within seconds, making it excellent for applications requiring rapid detection and large-scale sample analysis. NIRS offers advantages such as speed, non-destructive testing, and reagent-free operation, allowing for the analysis of large numbers of samples in a short time. Compared to traditional chemical analysis methods, NIRS not only saves time and cost but also avoids the environmental pollution that can result from the use of chemical reagents.

[0004] In recent years, with the decreasing cost and increasing application of near-infrared spectrometers and related equipment, many detection devices based on the principle of near-infrared spectroscopy have emerged. However, these devices are mostly designed for laboratory environments and suffer from problems such as large size, poor environmental adaptability, and inconvenience in portability.

[0005] The utility model patent with patent number 202120328670.1 discloses a "portable near-infrared spectroscopy solid sample analyzer". Although it achieves a portable design, its application scenario is too limited. It can only perform solid sample analysis and does not have data analysis and network uploading functions.

[0006] The utility model patent with patent number 202122135042.4 discloses a "portable near-infrared analyzer" patent. It does not have the protective capabilities of a portable instrument. In essence, it is a conventional instrument with a handle added. Its sample injection method is limited by the space size and its scope of application is limited.

[0007] Therefore, a portable near-infrared spectroscopy analysis device is developed to address the following issues:

[0008] (1) Existing products have a built-in fixed optical path design, and the measurement method is limited, which cannot expand the application;

[0009] (2) Existing portable instruments do not have portable protection conditions and are not very practical for the environment;

[0010] (3) The injection / measurement methods are subject to many limitations, resulting in poor versatility and applicability;

[0011] (4) The existing product structure requires custom design, resulting in high shell processing costs;

[0012] (5) It does not have a data upload function. Utility Model Content

[0013] To address the aforementioned shortcomings in the existing technology, this utility model provides a portable near-infrared spectroscopy analyzer with a practical structure that is easy to promote.

[0014] A portable near-infrared spectroscopy analyzer includes a top cover and a bottom shell with an opening and closing structure.

[0015] An upper panel is fixed inside the top cover of the enclosure. An industrial control computer is fixed to the upper panel via a screen mounting bracket. The industrial control computer is equipped with an antenna for wireless communication.

[0016] The lower shell of the box is fixed with a lower panel, which is equipped with a compartment cover with a pull handle, ventilation holes, air vents and a power switch. The bottom space of the compartment cover is filled with a sponge with storage holes.

[0017] A fixing plate is provided on one side of the lower shell of the housing. The fixing plate is equipped with a spectrometer, a light source and a power module by a fixing bracket. The spectrometer is connected to the spectrometer input interface through an optical fiber, and the input interface is installed on the lower plate. The light source is connected to the light source output interface through an optical fiber, and the light source output interface is installed on the lower plate.

[0018] The side of the lower shell of the housing is provided with a charging interface for charging the power module.

[0019] Preferably, a sealing ring is sandwiched between the top cover and the bottom shell of the box, and the bottom shell of the box is also provided with a latch for fixing the top cover.

[0020] Preferably, the industrial control computer is connected to the USB female port and the spectrometer via a connecting harness, which includes communication wires and power cords.

[0021] Preferably, the light source has a light source boost button and a light source dimming button for adjusting the light source intensity.

[0022] Preferably, sample holder one and sample holder two are placed in the storage hole. After sample holder one and sample holder two are taken out, they are connected by optical fiber three, optical fiber four or optical fiber five for sample testing.

[0023] The beneficial effects of this utility model are as follows:

[0024] (1) The light source and spectrometer are built-in for enhanced protection, and the optical path is externally placed through optical fiber. It can measure various signals such as projection, reflection, scattering, and fluorescence, and the measurement method is flexible.

[0025] (2) The test sample stage can be freely matched. The system has multiple built-in measurement models and can be used for various types of sample testing scenarios. It can be configured with liquid sample measurement racks, solid sample measurement racks, and various accessories. It can be freely combined, has comprehensive functions, strong DIY capabilities, and is flexible in use.

[0026] (3) Use a prefabricated three-proof box as the instrument shell, which is waterproof, dustproof, and impact-proof, and has good environmental practicality;

[0027] (4) The casing, screen and other peripheral components are all mature mass-produced products, which effectively reduces the cost of the whole machine;

[0028] (5) The system has data storage and analysis processing capabilities and can upload data to the platform in real time via wireless network to meet the needs of certain special application scenarios. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the open state of this utility model;

[0032] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the usage state of this utility model;

[0034] 101-Top cover of the enclosure, 102-Lower shell of the enclosure, 1021-Power supply opening, 1022-Latch, 103-Sealing ring, 201-Top panel, 202-Industrial computer, 2021-Antenna, 203-Screen mounting bracket, 204-Connecting harness, 205-USB female connector, 301-Lower panel, 302-Compartment cover, 303-Handle, 304-Ventilation hole, 305-Air inlet hole, 306-Power switch, 307-Sponge, 3071-Storage hole, 308-Cooling fan, 401-Spectrometer, 402-Fiber optic cable one, 403-Spectrometer input interface, 501-Light source, 5011-Light source enhancement button, 5012-Light source reduction button, 502-Fiber optic cable two, 503-Light source output interface, 601-Power module, 602-Charging interface, 603-Mounting bracket, 604-Mounting base plate. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0039] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] As shown in the attached figure, a portable near-infrared spectroscopy analyzer includes a top cover 101 and a bottom cover 102. The enclosure adopts an opening and closing structure, with a sealing ring 103 sandwiched between the bottom cover 102 and the top cover 101 to achieve waterproof and dustproof effects. The enclosure is modified from a commonly used three-proof box on the market, with an added power opening 1021 for charging, and a latch 1022 for fixing the top cover 101 and the bottom cover 102.

[0041] The industrial computer 202 is fixed to the top cover 101 of the enclosure via a screen mounting bracket 203. It has an antenna 2021 for wireless communication. The top panel 201 serves to protect the industrial computer 202 and for aesthetic purposes. Multiple communication and power cables inside the wiring harness 204 connect the industrial computer 202 to the USB port, spectrometer 401, etc. The bottom panel 301 is fixed to the lower shell 102 of the enclosure, and a cover 302 with a handle 303 is mounted on it (the cover 302 can be opened around an axis). Figure 2 It includes ventilation holes 304 (with a heat dissipation fan 308 installed on the back for internal heat dissipation), air vents 305, and a power switch 306. When the cover 302 is opened, a sponge 307 is exposed, and a storage hole 3071 on it is used to store the testing bracket and its accessories to prevent damage.

[0042] The spectrometer 401 is fixed to the mounting plate 604 via a mounting bracket 603, and then to the lower shell 102 of the enclosure. The spectrometer 401 is connected to the spectrometer input interface 403 via optical fiber 402, and the spectrometer input interface 403 is mounted on the lower panel 301. The light source 501 is fixed to the mounting plate 604 via a mounting bracket 603, and then to the lower shell 102 of the enclosure. The light source 501 is connected to the light source output interface 503 via optical fiber 502, and the light source output interface 503 is mounted on the lower panel 301. The light source 501 has a light source enhancement button 5011 and a light source reduction button 5012 for adjusting the light source intensity. The charging interface 602 is fixed to the lower shell 102 of the enclosure and is used to charge the power module 601.

[0043] like Figure 4As shown, the sample holder 700 and sample holder 800 placed in the storage hole 3071 can be removed and connected with fiber optic cable 4031, fiber optic cable 5031 or fiber optic cable 5032 for sample testing.

[0044] How to use:

[0045] Sample holder 1 (700), sample holder 2 (800), fiber optic cable 3 (4031), fiber optic cable 4 (5031), and fiber optic cable 5 (5032) are placed in the storage hole 3071, in the initial state as follows. Figure 2 As shown. The instrument has an internal power module 601 that can supply its own power. It can be connected to a mouse and keyboard via a USB female connector 205 for system operation, and can also be operated using the touch function of the industrial control screen 202.

[0046] When testing is required, unlock latch 1022 and open the top cover 101 of the enclosure. Figure 2 In the initial state, open the chamber cover 302 via handle 303. Select either sample holder 1 700 or sample holder 2 800 according to the sample shape. Connect fiber optic cables 3 4031 and 4 5031 to the corresponding spectrometer input interface 403 and light source output interface 503. Press the power switch 306 to power on the device. The system operates through the industrial control computer 202 and includes multiple built-in measurement models. Adjust the light source 501 (light source enhancement button 5011) or light source reduction button 5012 according to the sample type and model requirements to suit the testing needs. Adjusting the light source position according to the model design enables the measurement of various signals such as projection, reflection, scattering, and fluorescence, making the measurement methods more flexible. Specific measurement frames can be applied or customized according to different sample shapes, allowing for free combination and flexible use. After testing, the system stores the analysis data and can optionally upload the data to a platform.

[0047] The above description is only a preferred embodiment of this utility model patent and is not intended to limit this utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model patent should be included within the protection scope of this utility model patent.

Claims

1. A portable near-infrared spectrum analyzer, comprising an upper cover (101) and a lower shell (102) of an upper and lower opening and closing structure; characterized in that: The inside of the upper cover (101) is fixed with an upper panel (201), and the upper panel (201) is fixed with an industrial computer (202) through a screen fixing support (203), and the industrial computer (202) is provided with an antenna (2021) for wireless communication; The lower shell (102) is fixed with a lower panel (301), and the lower panel (301) is installed with a cover (302) having a lower handle (303), a ventilation hole (304), an air hole (305) and a power switch (306), and the bottom space of the cover (302) is placed with a sponge (307) having a storage hole (3071); One side of the lower shell (102) is provided with a fixed plate (604), and the fixed plate (604) is installed with a spectrometer (401), a light source (501) and a power module (601) through a fixing support (603), the spectrometer (401) is connected to a spectrometer input interface (403) through an optical fiber (402), and the input interface (403) is installed on the lower panel (301); the light source (501) is connected to a light source output interface (503) through an optical fiber (502), and the light source output interface (503) is installed on the lower panel (301); The side of the lower shell (102) is provided with a charging interface (602) for charging the power module (601).

2. The portable near infrared spectroscopic analyzer according to claim 1, characterized in that: The upper cover and the lower shell (102) are clamped with a sealing ring (103), and the lower shell (102) is further provided with a lock (1022) for fixing the upper cover (101).

3. The portable near infrared spectroscopic analyzer according to claim 1, characterized in that: The industrial computer (202) is connected with the USB female seat (205) and the spectrometer (401) through the connecting wire harness (204), and the connecting wire harness (204) includes communication wires and power lines.

4. The portable near infrared spectroscopic analyzer according to claim 1, characterized in that: The light source (501) has a light source enhancement button (5011) and a light source weakening button (5012) for adjusting the light source strength.

5. The portable near infrared spectroscopic analyzer according to claim 1, wherein: The storage hole (3071) is placed with a sample seat one (700) and a sample seat two (800), and after the sample seat one (700) and the sample seat two (800) are taken out, they are connected with an optical fiber three (4031), an optical fiber four (5031) or an optical fiber five (5032) for sample detection.

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