A portable short-wave infrared spectrometer

Abstract

The present application relates to a portable short-wave infrared spectrometer, comprising: a detection mechanism comprising a main body, a probe assembly, and an injection assembly, wherein the main body extends in a first direction, and the probe assembly is disposed at one end of the main body along the first direction; the injection assembly comprises an injection nozzle and a connecting pipe, which are connected in sequence, the injection nozzle being annular and extending in the first direction, and the injection nozzle at least partially surrounding the probe assembly; a holding mechanism connected to the detection mechanism, the holding mechanism extending in a second direction, the first and second directions intersecting; and a control assembly, the detection mechanism being communicatively connected to the control assembly. The portable short-wave infrared spectrometer disclosed in the present application can perform spectral testing directly at the sampling site, thereby improving efficiency and reducing costs.

Description

Technical Field

[0001] The present application relates to the field of spectrum detection technology, and in particular to a portable short-wave infrared spectrometer. Background Art

[0002] Currently, spectral testing of core samples is performed by collecting them from the field drilling site and transporting them back to the laboratory for spectral testing. Alternatively, the cores are cleaned and dried at the drilling site or in a core storage facility before spectral testing. However, transporting core samples is time-consuming and expensive. Furthermore, due to the high dust content on the core surface and the lack of access to water at the drilling site or in the core storage facility, it is impossible to completely remove the dust from the sample surface, making it difficult to obtain high-quality spectra.

[0003] Therefore, it is necessary to provide a portable short-wave infrared spectrometer that can be used for field work and can directly obtain high-quality spectra. Summary of the Invention

[0004] In view of the above analysis, the present application aims to provide a portable short-wave infrared spectrometer that can perform spectral testing directly in the field, obtain high-quality spectra, improve work efficiency and reduce costs.

[0005] The purpose of this application is mainly achieved through the following technical solutions:

[0006] An embodiment of the present application provides a portable short-wave infrared spectrometer, comprising: a detection mechanism, comprising a main body, a probe assembly and an injection assembly, the main body extending along a first direction, and the probe assembly being arranged at one end of the main body along the first direction; the injection assembly comprising an injection nozzle and a connecting pipe connected in sequence, the injection nozzle being annular and extending along the first direction, and the injection nozzle at least partially surrounds the probe assembly; a holding mechanism connected to the detection mechanism, the holding mechanism extending along a second direction, the first direction and the second direction intersecting; the holding mechanism including a control assembly, and the detection mechanism being communicatively connected to the control assembly.

[0007] According to an embodiment of the present application, the probe assembly includes: a shell, which is cylindrical and extends along a first direction, and the end of the shell has a transparent lens; a light source assembly is arranged in the shell, the light source assembly includes an optical fiber, and the optical fiber passes through the shell and the main body; a detection assembly is arranged in the shell, the detection assembly includes a transmission signal line, and the transmission signal line passes through the shell and the main body.

[0008] According to an embodiment of the present application, it also includes: a host, electrically connected to the transmission signal line; and a short-wave infrared light source, connected to the optical fiber.

[0009] According to an embodiment of the present application, the injection nozzle is in the shape of a truncated cone extending along a first direction, and the diameter of the injection nozzle gradually increases along the injection direction; the injection nozzle includes a first end plate, the first end plate is located on the end face of the injection nozzle along the injection direction, and the first end plate is provided with a plurality of first through holes arranged along the circumferential direction.

[0010] According to an embodiment of the present application, the injection nozzle also includes: a second end plate, the second end plate is located on the side of the first end plate opposite to the injection direction; the second end plate is provided with a plurality of second through holes arranged along the circumferential direction; along the injection direction, the shape of the first through hole and the shape of the second through hole are the same; a plurality of guide plates are connected between the first end plate and the second end plate.

[0011] According to an embodiment of the present application, one end of the guide plate is hinged to the first end plate, and the other end of the guide plate is hinged to the second end plate; the second end plate is rotatable relative to the first end plate, and the rotation axis is parallel to the first direction.

[0012] According to an embodiment of the present application, the injection assembly also includes a drive assembly, which includes a motor, a ring gear, and an output gear. The output gear is connected to the motor, the ring gear is sleeved on the outer edge of the second end plate, and the ring gear is dynamically connected to the output gear.

[0013] According to an embodiment of the present application, the connecting pipe includes: a first sub-pipe, connected to the injection nozzle; the first sub-pipe is provided with a first valve, and the control component controls the first valve to open or close; a second sub-pipe, connected to the injection nozzle; the second sub-pipe is provided with a second valve, and the control component controls the second valve to open or close.

[0014] According to an embodiment of the present application, it also includes: a spray source, including an air flow source and a liquid flow source, the air flow source is connected to the first sub-tube, and the liquid flow source is connected to the second sub-tube.

[0015] According to an embodiment of the present application, a movable inspection vehicle is also included, and the control component and the detection component are both electrically connected to the movable inspection vehicle; the movable inspection vehicle is provided with multiple sets of support wheels and a traction part.

[0016] Compared with the prior art, the portable short-wave infrared spectrometer provided in the embodiments of the present application has at least one of the following advantages:

[0017] 1. When using the portable short-wave infrared spectrometer of the embodiment of the present application, geologists can hold the holding mechanism in their hands and use the detection mechanism directly to perform detection at the collection site of the sample such as rock, which greatly improves the efficiency of spectral detection and reduces the detection cost.

[0018] 2. During use of the portable short-wave infrared spectrometer of an embodiment of the present application, the spray assembly can spray gas and / or liquid to clean the surface of the sample under test and the probe assembly, thereby improving the accuracy of spectral detection and enabling the direct acquisition of high-quality spectral data in the field; in addition to being used to spray gas and / or liquid, the spray nozzle can also cover the surface of the sample under test during spectral detection, thereby reducing the impact of ambient light on spectral detection and improving the accuracy of spectral detection.

[0019] In this application, the above-mentioned technical solutions can be combined with each other to achieve more preferred combination solutions. Other features and advantages of this application will be described in the subsequent description, and some advantages will become apparent from the description or be understood by practicing this application. The objectives and other advantages of this application can be achieved and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered as limiting the present application. Like reference symbols denote like components throughout the drawings.

[0021] Figure 1 This is a schematic structural diagram of a portable short-wave infrared spectrometer according to an embodiment of the present application.

[0022] Figure 2 This is a structural schematic diagram of the probe assembly and injection assembly of the portable short-wave infrared spectrometer according to an embodiment of the present application.

[0023] Figure 3 A schematic diagram of the principle of the light source component and the detection component of the portable short-wave infrared spectrometer according to an embodiment of the present application.

[0024] Figure 4 This is a schematic diagram of the internal structure of the injection nozzle of the portable short-wave infrared spectrometer according to an embodiment of the present application.

[0025] Figure 5 This is another schematic diagram of the internal structure of the injection nozzle of the portable short-wave infrared spectrometer according to an embodiment of the present application.

[0026] Figure 6 This is a schematic diagram of the principle of the connecting tube of the portable short-wave infrared spectrometer of an embodiment of the present application.

[0027] Reference numerals:

[0028] 1. Detection mechanism; 11. Main body; 12. Probe assembly; 121. Housing; 122. Light source assembly; 123. Detection assembly; 124. Main unit; 125. Short-wave infrared light source; 131. Injection nozzle; 132. Connecting pipe; 141. First end plate; 142. Second end plate; 143. Guide plate; 151. Motor; 152. Output gear; 153. Ring gear; 161. First sub-tube; 162. Second sub-tube; 163. Air flow source; 164. Liquid flow source;

[0029] 2. Holding mechanism;

[0030] 3. Mobile inspection vehicle;

[0031] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0032] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating the examples of the present application.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.

[0034] Relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0035] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or region, it may mean that it is directly on the other layer or region, or that other layers or regions are included between it and the other layer or region. Furthermore, if the component is turned over, the layer or region will be "below" or "beneath" the other layer or region.

[0036] In this document, the term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0037] It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0038] The applicant found that when spectral testing of rock samples is required, geologists usually collect rock samples outdoors and then bring the rock samples back to the laboratory. In the laboratory, they use short-wave infrared spectroscopy equipment for testing, which often requires a long testing cycle, is inefficient, and easily affects the timeliness of spectral testing, while also increasing the cost of spectral testing.

[0039] In view of the above analysis, the applicant has proposed a portable short-wave infrared spectrometer, including a detection mechanism and a holding mechanism. The probe assembly and the spray assembly are both installed in the main body. The spray assembly includes a spray nozzle and a connecting pipe that are connected in sequence, which can spray gas and / or liquid to clean the surface of the sample to be tested and the probe assembly, thereby improving the accuracy of spectral detection and directly obtaining high-quality spectral data; in addition to being used to spray gas and / or liquid, the spray nozzle can cover the surface of the sample to be tested when performing spectral detection, reducing the impact of ambient light on spectral detection, and also improving the accuracy of spectral detection. In the process of using the portable short-wave infrared spectrometer of the embodiment of the present application, geologists can hold the holding mechanism in their hands and use the detection mechanism directly to perform detection at the collection site of the sample to be tested, such as rock, which greatly improves the efficiency of spectral detection and reduces the detection cost.

[0040] Figure 1 This is a schematic structural diagram of a portable short-wave infrared spectrometer according to an embodiment of the present application. Figure 2 This is a structural schematic diagram of the probe assembly 12 and the injection assembly of the portable short-wave infrared spectrometer according to an embodiment of the present application.

[0041] See also Figure 1 and Figure 2The embodiment of the present application provides a portable short-wave infrared spectrometer, comprising: a detection mechanism 1, comprising a main body 11, a probe assembly 12 and an injection assembly, the main body 11 extending along a first direction X, and the probe assembly 12 being arranged at one end of the main body 11 along the first direction X; the injection assembly comprising an injection nozzle 131 and a connecting pipe 132 connected in sequence, the injection nozzle 131 being annular and extending along the first direction X, and the injection nozzle 131 at least partially surrounds the probe assembly 12; a holding mechanism 2, connected to the detection mechanism 1, the holding mechanism 2 extending along a second direction Y, the first direction X and the second direction Y intersecting; the holding mechanism 2 including a control assembly, and the detection mechanism 1 being communicatively connected to the control assembly.

[0042] In the portable short-wave infrared spectrometer of the embodiment of the present application, a geologist can hold the main detection part of the spectrometer, and other parts (such as the host 124, the light source, etc.) can be moved along with the geologist in a movable manner.

[0043] The main body 11 of the detection mechanism 1 extends along a first direction X and can accommodate other components of the detection mechanism 1. The holding mechanism 2 is connected to the detection mechanism 1 and extends along a second direction Y, where the first direction X intersects the second direction Y. This allows the detection mechanism 1 and the holding mechanism 2 to be connected, forming a pistol-like shape. When a geologist holds the holding mechanism 2, they place the detection mechanism 1 against the surface of the sample being tested, allowing them to perform spectral testing on the sample at the collection site.

[0044] The injection nozzle 131 of the injection assembly is annular and surrounds the probe assembly 12. The injection nozzle 131 can spray liquid and / or gas to clean dust, debris and other interferences on the surface of the sample to be tested, so as to improve the accuracy of spectral detection and directly obtain high-quality spectral data. The liquid and / or gas sprayed by the injection nozzle 131 is introduced into the injection nozzle 131 through the connecting pipe 132. It is understandable that an air pump or a liquid pump can be provided to pump the gas or liquid to the injection nozzle 131. Optionally, the injection assembly is provided with both an air pump and a liquid pump, that is, it has both liquid spraying and air jetting functions. The injection assembly can selectively perform liquid spraying and air jetting actions according to the set program, and can also first spray liquid to clean mud, dust, etc. on the surface of the sample to be tested, and then quickly dry the wetted surface of the sample to be tested by air jetting, thereby improving the test efficiency.

[0045] Considering that the nozzle 131 surrounds the probe assembly 12, when performing spectral detection on the sample, the nozzle 131 abuts the measured surface of the sample. At the same time, the nozzle 131 can block the area surrounding the probe assembly 12 to reduce interference from external ambient light on the spectral detection, thereby further improving the accuracy of the spectral detection. The detection mechanism 1 and the holding mechanism 2 are connected to form a whole that is similar to a pistol shape.

[0046] In addition, the gripping mechanism 2 is further provided with a control component for controlling the detection mechanism 1. Considering that the detection mechanism 1 and the gripping mechanism 2 are connected to form a pistol-like shape, the control component can be provided at the connection between the detection mechanism 1 and the gripping mechanism 2, similar to the trigger of a pistol. It is understood that the control component can include multiple physical or virtual buttons to respectively control various components of the portable short-wave infrared spectrometer of the embodiment of the present application.

[0047] Further, see Figure 1 and Figure 2 The probe assembly 12 includes: a shell 121, which is cylindrical and extends along the first direction X. The end of the shell 121 has a transparent lens; a light source assembly 122, which is arranged in the shell 121, and the light source assembly 122 includes an optical fiber, which passes through the shell 121 and the main body 11; a detection assembly 123, which is arranged in the shell 121, and the detection assembly 123 includes a transmission signal line, which passes through the shell 121 and the main body 11.

[0048] The housing 121 has a certain sealing property and is used to protect the light source assembly 122 and the detection assembly 123. The light source assembly 122 introduces short-wave infrared light through an optical fiber. The introduced short-wave infrared light will be emitted through the transparent lens of the housing 121 and irradiated on the surface of the sample to be tested. After reflection and scattering, the detection assembly 123 receives the reflected and / or scattered light and derives the collected light signal through the transmission signal line, so as to obtain the short-wave infrared spectrum of the sample to be tested based on the detected light. It is understandable that after using liquid jet to clean the surface of the sample to be tested, gas can be sprayed to blow away the residual liquid on the surface of the sample to be tested and the surface of the transparent lens, thereby keeping the surface of the sample to be tested and the surface of the transparent lens clean and reducing the error of spectral detection.

[0049] Figure 3 This is a schematic diagram of the principle of the light source component 122 and the detection component 123 of the portable short-wave infrared spectrometer according to an embodiment of the present application.

[0050] Further, see Figure 3 The portable short-wave infrared spectrometer of the embodiment of the present application further includes: a host 124 electrically connected to the transmission signal line; and a short-wave infrared light source 125 connected to the optical fiber.

[0051] The short-wave infrared light source 125 is connected to the optical fiber, and the short-wave infrared light emitted by the short-wave infrared light source 125 is transmitted through the optical fiber to the light source assembly 122 located in the housing 121. The light signal obtained by the detection assembly 123 is exported to the host 124 through the transmission signal line. After calculation and processing by the host 124, the short-wave infrared spectrum of the sample under test can be displayed in the form of data and / or images, which serves as a basis for analyzing the composition and physical and chemical forms of the sample under test. For example, the probe assembly 12 with a built-in short-wave infrared light source is a reflection probe, and the measurement result obtained is the relative reflectivity. The mineral composition of the rock can be obtained based on the relative reflectivity result. It is understandable that the host 124 and the light source can be installed in a movable detection vehicle 3, so that the host 124 and the light source can move together with the geological personnel to facilitate spectral detection of the sample under test at the collection site of the sample under test.

[0052] Further, see Figure 3 The portable short-wave infrared spectrometer of the embodiment of the present application further includes a movable detection vehicle 3, to which the control component and the detection component 123 are both electrically connected; the movable detection vehicle 3 is provided with multiple sets of support wheels and a traction unit. When using the portable short-wave infrared spectrometer of the embodiment of the present application, geologists can move the movable detection vehicle 3 with them at the sample collection site. When moving the movable detection vehicle 3, the traction unit can be used to drive the movable detection vehicle 3.

[0053] Figure 4 Schematic diagram of the internal structure of the injection nozzle 131 of the portable short-wave infrared spectrometer according to an embodiment of the present application.

[0054] Further, see Figure 4 , and combined with Figure 2 The injection nozzle 131 is in the shape of a truncated cone extending along the first direction X, and the diameter of the injection nozzle 131 gradually increases along the injection direction; the injection nozzle 131 includes a first end plate 141, which is located on the end face of the injection nozzle 131 along the injection direction, and the first end plate 141 is provided with a plurality of first through holes arranged along the circumferential direction.

[0055] The nozzle 131 is truncated cone-shaped, and its diameter gradually increases along the direction of injection. This causes the injected gas and / or liquid to diffuse, thereby increasing the cleaning area of the sample surface being tested. Furthermore, during spectral testing, the truncated cone-shaped nozzle 131 provides increased shielding around the measured area, reducing the nozzle's impact on short-wave infrared light. The gas and / or liquid is ejected from the first through-hole of the first end plate 141, reducing the possibility of backflow of rock debris and soil.

[0056] Further, see Figure 2 and Figure 4The injection nozzle 131 also includes: a second end plate 142, which is located on the side of the first end plate 141 opposite to the injection direction; the second end plate 142 is provided with a plurality of second through holes arranged along the circumferential direction; along the injection direction, the shape of the first through hole is the same as the shape of the second through hole; a plurality of guide plates 143 are connected between the first end plate 141 and the second end plate 142.

[0057] Second end plate 142 also has a plurality of second through-holes, through which gas and / or liquid can flow between first end plate 141 and second end plate 142, and then be ejected from the first through-holes. Guide plate 143, disposed between first end plate 141 and second end plate 142, can guide the gas and / or liquid flow, causing the gas and / or liquid ejected from the first through-holes to form a spiral shape, thereby improving the cleaning performance of the test surface of the sample being tested.

[0058] Further, see Figure 2 and Figure 4 One end of the guide plate 143 is hinged to the first end plate 141 , and the other end of the guide plate 143 is hinged to the second end plate 142 ; the second end plate 142 is rotatable relative to the first end plate 141 , and the rotation axis is parallel to the first direction X.

[0059] When the second end plate 142 rotates relative to the first end plate 141, the guide plate 143 rotates together, so that the ejected gas and / or liquid can switch between a positive spiral and a reverse spiral, so that the liquid flow and / or air flow can sweep the surface of the sample to be tested back and forth, thereby further improving the cleaning ability of the surface to be tested of the sample to be tested.

[0060] Figure 5 This is another schematic diagram of the internal structure of the injection nozzle 131 of the portable short-wave infrared spectrometer according to an embodiment of the present application.

[0061] Further, see Figure 5 The injection assembly also includes a driving assembly, which includes a motor 151, a ring gear 153, and an output gear 152. The output gear 152 is connected to the motor 151, and the ring gear 153 is sleeved on the outer edge of the second end plate 142. The ring gear 153 is power-connected to the output gear 152.

[0062] The drive assembly is used to rotate the second end plate 142. The motor 151 drives the output gear 152, which in turn drives the rack. Because the rack is connected to the second end plate 142, the motor 151 can drive the second end plate 142 to rotate. It will be appreciated that the output gear 152 can directly mesh with the rack to drive its rotation, or it can be indirectly connected to the rack through a reduction gear train, allowing the rack to rotate with appropriate torque.

[0063] Figure 6This is a schematic diagram of the principle of the connecting tube 132 of the portable short-wave infrared spectrometer according to an embodiment of the present application.

[0064] Further, see Figure 6 The connecting pipe 132 includes: a first sub-pipe 161, which is connected to the injection nozzle 131; the first sub-pipe 161 is provided with a first valve, and the control component controls the first valve to open or close; a second sub-pipe 162, which is connected to the injection nozzle 131; the second sub-pipe 162 is provided with a second valve, and the control component controls the second valve to open or close.

[0065] Gas can flow to the injection nozzle 131 through the first sub-tube 161, and liquid can flow to the injection nozzle 131 through the second sub-tube 162. When the first valve is open and the second valve is closed, only gas flows to the injection nozzle 131, and the injection assembly sprays gas, which can perform preliminary cleaning of the sample to be tested; when the first valve is closed and the second valve is open, only liquid flows to the injection nozzle 131, and the injection assembly sprays liquid, which can further clean the sample to be tested; when the first valve is open and the second valve is open, gas and liquid flow to the injection nozzle 131, and after the two are mixed, they are sprayed from the injection assembly, which can further improve the cleaning ability. Of course, it is also possible to spray liquid and air in sequence, first using liquid spray to rinse the mud on the surface of the core that is difficult to blow off directly. After liquid rinsing, air is then used to dry it. The test results obtained on the dried core surface are more accurate.

[0066] Further, see Figure 6 The portable shortwave infrared spectrometer of the present embodiment further includes a spray source, including an air flow source 163 and a liquid flow source 164. Air flow source 163 can be an air pump and communicate with first sub-tube 161 to introduce gas into first sub-tube 161. Liquid flow source 164 can be a liquid pump and communicate with second sub-tube 162 to introduce liquid into second sub-tube 162.

[0067] In summary, the embodiment of the present application provides a portable short-wave infrared spectrometer, including a detection mechanism and a holding mechanism. The probe assembly and the spray assembly are both installed in the main body. The spray assembly includes a spray nozzle and a connecting pipe that are connected in sequence, which can spray gas and / or liquid to clean the surface of the sample to be tested and the probe assembly, thereby improving the accuracy of spectral detection. In addition to being used to spray gas and / or liquid, the spray nozzle can cover the surface of the sample to be tested when performing spectral detection, reducing the impact of ambient light on spectral detection, and also improving the accuracy of spectral detection. In the process of using the portable short-wave infrared spectrometer of the embodiment of the present application, geologists can hold the holding mechanism in their hands and use the detection mechanism directly to perform detection at the collection site of the sample to be tested, such as exposed rocks in the field, cores obtained by drilling, etc., to obtain high-quality spectral data directly in the field, greatly improving the efficiency of spectral detection and reducing detection costs.

[0068] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in this application should be covered by the scope of protection of the present application.

Claims

1. A portable short-wave infrared spectrometer, characterized in that: include: The detection mechanism includes a main body, a probe assembly, and a spray assembly, wherein the main body extends along a first direction, and the probe assembly is disposed at one end of the main body along the first direction; the spray assembly includes a spray nozzle and a connecting pipe that are sequentially connected, the spray nozzle is annular and extends along the first direction, and the spray nozzle at least partially surrounds the probe assembly; a holding mechanism connected to the detection mechanism, wherein the holding mechanism extends along a second direction, and the first direction and the second direction intersect; The holding mechanism includes a control component, and the detection mechanism is communicatively connected to the control component; The injection nozzle comprises: a first end plate, the first end plate being located on an end surface of the injection nozzle along the injection direction, the first end plate being provided with a plurality of first through holes arranged along the circumferential direction; a second end plate, the second end plate being located on a side of the first end plate opposite to the injection direction; the second end plate being provided with a plurality of second through holes arranged along the circumferential direction; the first through holes and the second through holes having the same shape along the injection direction; A plurality of guide plates are connected between the first end plate and the second end plate; one end of the guide plate is hinged to the first end plate, and the other end of the guide plate is hinged to the second end plate; the second end plate is rotatable relative to the first end plate, and the rotation axis is parallel to the first direction, so that the gas and / or liquid ejected from the injection nozzle can switch between a positive spiral and a reverse spiral, and reciprocately sweep the surface of the sample to be tested.

2. The portable short-wave infrared spectrometer according to claim 1, characterized in that The probe assembly comprises: a housing in a cylindrical shape extending along the first direction, with a transparent lens at an end of the housing; a light source assembly disposed in the housing, the light source assembly comprising an optical fiber passing through the housing and the main body; The detection assembly is arranged in the shell, and the detection assembly includes a transmission signal line, and the transmission signal line passes through the shell and the main body.

3. The portable short-wave infrared spectrometer according to claim 2, characterized in that Also includes: a host, electrically connected to the transmission signal line; A short-wave infrared light source is connected to the optical fiber.

4. The portable short-wave infrared spectrometer according to claim 1, characterized in that The injection nozzle is in a truncated cone shape extending along the first direction, and the diameter of the injection nozzle gradually increases along the injection direction.

5. The portable short-wave infrared spectrometer according to claim 4, characterized in that: The injection assembly further includes a drive assembly, which includes a motor, a ring gear, and an output gear. The output gear is connected to the motor, the ring gear is sleeved on the outer edge of the second end plate, and the ring gear is dynamically connected to the output gear.

6. The portable short-wave infrared spectrometer according to claim 1, characterized in that The connecting pipe comprises: a first sub-pipe, connected to the injection nozzle; the first sub-pipe is provided with a first valve, and the control component controls the first valve to be opened or closed; The second sub-pipe is connected to the injection nozzle; the second sub-pipe is provided with a second valve, and the control component controls the second valve to be opened or closed.

7. The portable short-wave infrared spectrometer according to claim 6, characterized in that: Also includes: The injection source includes an air flow source and a liquid flow source, wherein the air flow source is connected to the first sub-tube, and the liquid flow source is connected to the second sub-tube.

8. The portable short-wave infrared spectrometer according to claim 3, characterized in that: It also includes a movable detection vehicle, and the control component and the detection component are both electrically connected to the movable detection vehicle; the movable detection vehicle is provided with multiple groups of supporting wheels and a traction part.

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