Portable short-wave infrared spectrometer used in field

Abstract

The utility model relates to a portable short-wave infrared spectrometer used in the field. The portable short-wave infrared spectrometer comprises a holding mechanism and a detection mechanism arranged on the holding mechanism. The detection mechanism is provided with a main body part and a probe assembly, the main body part extends along a first direction, and the probe assembly is arranged at one end of the main body part along the first direction and is configured to perform short-wave infrared spectrum detection on a detected sample; the holding mechanism extends in the second direction and is held by an operator, and the first direction intersects with the second direction. According to the invention, the spectrum test can be directly carried out in the field.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of spectral detection, in particular to a portable short-wave infrared spectrometer for field use. BACKGROUND

[0002] At present, for the spectral test of core samples, the core samples are collected from the field drilling site and then transported back to the laboratory for spectral test, or the core samples are cleaned and dried at the drilling site or core storage and then subjected to spectral test. However, the core sampling and transportation back to the laboratory are time-consuming and costly, and it is difficult to ensure that the sample surface is completely free of dust due to the inconvenience of water supply at the drilling site or core storage, and it is difficult to obtain high-quality spectra. CONTENT OF THE UTILITY MODEL

[0003] In view of the above analysis, the embodiments of the present application aim to provide a portable short-wave infrared spectrometer for field use to solve one or more of the above problems in the prior art.

[0004] The purpose of the present application is achieved as follows:

[0005] A portable short-wave infrared spectrometer for field use comprises a holding mechanism and a detection mechanism arranged on the holding mechanism; the detection mechanism has a main body part and a probe assembly, the main body part extends along a first direction, and the probe assembly is arranged at one end of the main body part along the first direction and is configured to perform short-wave infrared spectral detection on a measured sample; the holding mechanism extends along a second direction and is held by an operator, and the first direction and the second direction intersect.

[0006] Further, the included angle between the first direction and the second direction is 100°-130°.

[0007] Further, the detection mechanism further comprises a spraying assembly configured to clean the measured sample.

[0008] Further, the spraying assembly comprises a spraying nozzle and a connecting pipe connected in sequence, the spraying nozzle is annular and extends along the first direction, and the spraying nozzle at least partially surrounds the probe assembly.

[0009] Further, the probe assembly comprises a shell, a light source assembly and a detection assembly arranged in the shell; the shell is cylindrical and extends along the first direction, and the end of the shell has a transparent lens; the light source assembly comprises an optical fiber, and the optical fiber passes through the shell and the main body part; the detection assembly comprises a signal transmission line, and the signal transmission line passes through the shell and the main body part.

[0010] Further, a host and a short-wave infrared light source are further included, the host is electrically connected with the signal transmission line, and the short-wave infrared light source is connected with the optical fiber.

[0011] Further, the spray nozzle is in the shape of a circular truncated cone extending along the first direction, and the diameter of the spray nozzle gradually increases along the spray direction.

[0012] Further, the spray nozzle comprises a first end plate located at an end face of the spray nozzle along the spray direction, and the first end plate is provided with a plurality of first through holes arranged in a circumferential direction.

[0013] Further, the spray nozzle further comprises a second end plate located on the side opposite to the first end plate along the spray direction, and the second end plate is provided with a plurality of second through holes arranged in a circumferential direction; along the spray direction, the first through holes and the second through holes are in the same shape; and a plurality of guide plates are arranged between the first end plate and the second end plate.

[0014] Further, the first end of the guide plate is hinged to the first end plate, the second end of the guide plate is hinged to the second end plate, the second end plate is rotatably arranged relative to the first end plate, and the rotation axis is parallel to the first direction.

[0015] Compared with the prior art, the portable short-wave infrared spectrometer for field use provided by the present application can be held by a geologist in the field, and the detection mechanism can be directly used for detection at the collection position of the measured sample such as rock, thereby greatly improving the spectral detection efficiency and reducing the detection cost. Moreover, the spray assembly is arranged, the spray assembly can be used for cleaning the surface of the measured sample and the probe assembly, thereby improving the accuracy of spectral detection, and high-quality spectral data can be directly obtained in the field.

[0016] In the present application, the above technical solutions can be combined with each other to realize more preferred combination solutions. Other features and advantages of the present application will be described in the subsequent description, and some advantages will become apparent from the description or can be understood by implementing the present application. The purpose and other advantages of the present application can be realized and obtained from the contents specifically indicated in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the embodiments, and are incorporated in and constitute a part of this application, but are not considered limiting of the present application, in which the same reference numerals refer to the same components throughout the drawings.

[0018] Figure 1 A structural schematic view of the portable short-wave infrared spectrometer for field use provided by the present application.

[0019] Figure 2 A structural schematic view of the probe assembly and the spray assembly of the portable short-wave infrared spectrometer for field use provided by the present application.

[0020] Figure 3 A principle schematic view of the light source assembly and the detection assembly of the portable short-wave infrared spectrometer for field use provided by the present application.

[0021] Figure 4 An internal structure schematic view of the spray nozzle of the portable short-wave infrared spectrometer for field use is provided.

[0022] Figure 5 Another internal structure schematic view of the spray nozzle of the portable short-wave infrared spectrometer for field use is provided.

[0023] Figure 6 A principle schematic view of the connecting pipe of the portable short-wave infrared spectrometer for field use is provided.

[0024] Reference signs:

[0025] 1, detection mechanism; 11, main body part; 12, probe assembly; 121, shell; 122, light source assembly; 123, detection assembly; 124, main machine; 125, short-wave infrared light source; 131, spray nozzle; 132, connecting pipe; 141, first end plate; 142, second end plate; 143, guide plate; 151, motor; 152, output gear; 153, gear ring; 161, first sub-pipe; 162, second sub-pipe; 163, airflow source; 164, liquid flow source;

[0026] 2, holding mechanism;

[0027] 3, movable detection vehicle;

[0028] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0029] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some of these specific details. The description of the embodiments is merely to provide a better understanding of the present application by showing examples of the present application.

[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The embodiments will be described in detail below with reference to the accompanying drawings.

[0031] Relative terms such as first and second and the like can be used herein to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0032] It should be understood that when a layer, region, or element is referred to as being "on" or "above" another layer, region, or element, it can be directly on or above the other layer, region, or element, or intervening layers or regions can also be present. In addition, when a layer, region, or element is referred to as being "under" or "below" another layer, region, or element, it can be directly under or below the other layer, region, or element, or intervening layers or regions can also be present. Furthermore, to the extent that the terms "front," "back," "top," "bottom," "over," "under," and the like refer to orientations of portions of the device, the device can be turned over, and these terms can be used accordingly.

[0033] In addition, the term "and / or" herein is merely used to describe associated objects, indicating that there can be three types of relationships, for example, A and / or B can indicate that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally indicates that the front and rear associated objects have an "or" relationship.

[0034] 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 according to A. However, it should also be understood that the determination of B according to A does not mean that B is determined only according to A, but B can also be determined according to A and / or other information.

[0035] Embodiment 1

[0036] As shown in a specific embodiment of the utility model, Figures 1 to 2 As shown in a specific embodiment of the utility model,

[0037] In order to facilitate holding, the included angle between the first direction and the second direction is 100°-130°, preferably 120°.

[0038] 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 with the detection mechanism 1 and extends along a second direction Y, wherein the first direction X intersects the second direction Y, so that the overall shape of the detection mechanism 1 and the holding mechanism 2 connected together is approximately a pistol shape. When a geologist holds the holding mechanism 2, the detection mechanism 1 is pressed against the surface of the sample to be measured, so that the geologist can perform spectral detection on the sample to be measured at the sampling site of the sample to be measured.

[0039] In this embodiment, the detection mechanism 1 further has a spraying assembly configured to clean the sample to be measured. Specifically, the spraying assembly includes a spraying nozzle 131 and a connecting pipe 132 connected in sequence, the spraying nozzle 131 is annular and extends along the first direction X, and the spraying nozzle 131 at least partially surrounds the probe assembly 12.

[0040] In an alternative embodiment, the spraying nozzle 131 of the spraying assembly is annular and surrounds the probe assembly 12. The spraying nozzle 131 can spray liquid and / or gas to clean the dust, debris and other interference on the surface of the sample to be measured, so as to improve the accuracy of spectral detection and directly obtain high-quality spectral data. The liquid and / or gas sprayed by the spraying nozzle 131 is introduced into the spraying nozzle 131 through the connecting pipe 132. It can be understood that a gas pump or a liquid pump can be provided to pump gas or liquid to the spraying nozzle 131.

[0041] Alternatively, the spraying assembly is provided with a gas pump and a liquid pump at the same time, that is, the spraying assembly has both liquid spraying and gas spraying functions. The spraying assembly can selectively perform liquid spraying and gas spraying actions according to a set program, and can first spray liquid to clean the dirt, dust and the like on the surface of the sample to be measured, and then blow dry the wet sample to be measured by spraying gas, so as to improve the test efficiency.

[0042] Considering that the spraying nozzle 131 surrounds the probe assembly 12, when performing spectral detection on the sample to be measured, the spraying nozzle 131 abuts against the measured surface of the sample to be measured, and at the same time, the spraying nozzle 131 can shield the surrounding area of the probe assembly 12 to reduce the interference of external environmental light on spectral detection, thereby further improving the accuracy of spectral detection. The overall shape of the detection mechanism 1 and the holding mechanism 2 connected together is approximately a pistol shape.

[0043] In addition, the holding mechanism 2 is further provided with a control assembly in communication connection with the detection mechanism 1 for controlling the detection mechanism 1. Considering that the overall shape of the detection mechanism 1 and the holding mechanism 2 connected together is approximately a pistol shape, the control assembly can be arranged at the connection between the detection mechanism 1 and the holding mechanism 2, which is approximately the trigger of the pistol. It can be understood that the control assembly can include a plurality of physical or virtual keys for controlling each component of the portable short-wave infrared spectrometer for field use in the embodiments of the present application.

[0044] Further, with reference to Figure 1 and Figure 2 , the probe assembly 12 comprises a shell 121, a light source assembly 122 and a detection assembly 123 arranged in the shell 121, the shell 121 is in a cylindrical shape extending along the first direction X, and the end of the shell 121 is provided with a transparent lens; the light source assembly 122 comprises an optical fiber, the optical fiber passes through the shell 121 and the main body 11; the detection assembly 123 comprises a transmission signal line, the transmission signal line passes through the shell 121 and the main body 11.

[0045] In the embodiment, the shell 121 has a certain sealing property, which 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 the optical fiber, the introduced short-wave infrared light is emitted through the transparent lens of the shell 121, and irradiates the measured surface of the measured sample, after reflection and scattering, the detection assembly 123 receives the reflected and / or scattered light, and the collected light signal is guided out through the transmission signal line, so as to obtain the short-wave infrared spectrum of the measured sample according to the detected light. It can be understood that after the surface of the measured sample is cleaned by liquid spraying, gas can be sprayed to blow away the liquid remaining on the measured surface of the measured sample and the surface of the transparent lens, so as to keep the measured surface of the measured sample and the surface of the transparent lens clean, and reduce the error of spectrum detection.

[0046] Further, with reference to Figure 3 , the portable short-wave infrared spectrometer for field use in the embodiment of the application further comprises a host computer 124 and a short-wave infrared light source 125, the host computer 124 is electrically connected with the transmission signal line; the short-wave infrared light source 125 is connected with the optical fiber. It should be noted that the geologist can hold the main detection part of the spectrometer, and the other parts (such as the host computer 124, the light source, etc.) can be moved with the geologist in a movable manner.

[0047] The short-wave infrared light source 125 is connected with the optical fiber, and the short-wave infrared light emitted by the short-wave infrared light source 125 is conducted to the light source assembly 122 in the shell 121 through the optical fiber. The light signal obtained by the detection assembly 123 is guided out to the host computer 124 through the transmission signal line, and after calculation and processing by the host computer 124, the short-wave infrared spectrum of the measured sample can be displayed in the form of data and / or image, which can be used as a basis for analyzing the composition and physical and chemical form of the measured sample. For example, the probe assembly 12 with the built-in short-wave infrared light source is a reflection probe, and the obtained measurement result is relative reflectivity, and the mineral composition of the rock can be obtained according to the relative reflectivity result. It can be understood that the host computer 124 and the light source can be installed in the movable detection vehicle 3, so that the host computer 124 and the light source can move with the geologist, so as to perform spectrum detection on the measured sample at the collection site of the measured sample.

[0048] Further, with reference to Figure 3 The portable short-wave infrared spectrometer for field use in the embodiment of the present application further comprises a movable detection vehicle 3, and the control assembly and the detection assembly 123 are electrically connected with the movable detection vehicle 3; the movable detection vehicle 3 is provided with a plurality of supporting wheels and a traction part. When the geologist uses the portable short-wave infrared spectrometer for field use in the embodiment of the present application, the movable detection vehicle 3 can be moved together with the geologist at the sampling site of the measured sample. When the movable detection vehicle 3 is moved, the movable detection vehicle 3 can be driven to move through the traction part.

[0049] Further, with reference to Figure 4 and in combination with Figure 2 The injection nozzle 131 is in the shape of a circular 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 comprises a first end plate 141, the first end plate 141 is located at 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 in the circumferential direction.

[0050] The injection nozzle 131 is in the shape of a circular truncated cone, and the diameter of the injection nozzle 131 gradually increases along the injection direction, so that the sprayed gas and / or liquid has a diffusion trend, so as to increase the cleaning area of the surface of the measured sample. In addition, when performing spectrum detection, the injection nozzle 131 in the shape of a circular truncated cone can also increase the surrounding of the measured area, and reduce the influence of the injection nozzle 131 on the short-wave infrared light. The gas and / or liquid sprayed out of the first through holes of the first end plate 141 can reduce the possibility of backflow of the rock debris and soil.

[0051] Further, with reference to Figure 2 and Figure 4 The injection nozzle 131 further comprises a second end plate 142 and a plurality of guide plates 143, the second end plate 142 is located on the side opposite to the first end plate 141 along the injection direction; the second end plate 142 is provided with a plurality of second through holes arranged in the circumferential direction; along the injection direction, the shape of the first through hole is the same as that of the second through hole; the plurality of guide plates 143 are connected between the first end plate 141 and the second end plate 142.

[0052] The second end plate 142 is also provided with a plurality of second through holes, and the gas and / or liquid can flow from the second through holes to between the first end plate 141 and the second end plate 142, and then be sprayed out of the first through holes. Since the guide plates 143 are arranged between the first end plate 141 and the second end plate 142, the gas flow and / or liquid flow can be guided, so that the gas and / or liquid sprayed out of the first through holes are in the shape of a spiral, and the cleaning ability of the measured surface of the measured sample is improved.

[0053] Further, with reference to Figure 2 and Figure 4One 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 rotatably arranged relative to the first end plate 141, and the rotation axis is parallel to the first direction X.

[0054] When the second end plate 142 rotates relative to the first end plate 141, the guide plate 143 rotates together, so that the sprayed gas and / or liquid can be switched between positive and negative spirals, so that the liquid flow and / or gas flow can reciprocatingly sweep the surface of the measured sample, thereby further improving the cleaning ability of the measured surface of the measured sample.

[0055] Further, please refer to Figure 5 , the spraying assembly further comprises a driving assembly, the driving assembly comprising a motor 151, a gear ring 153, and an output gear 152, the output gear 152 being connected to the motor 151, the gear ring 153 being sleeved on the outer edge of the second end plate 142, and the gear ring 153 being power-connected to the output gear 152.

[0056] The driving assembly is used to drive the rotation of the second end plate 142. The electrode drives the rotation of the output gear 152, and the output gear 152 drives the rotation of the rack, and since the rack is connected to the second end plate 142, the motor 151 can drive the rotation of the second end plate 142. It can be understood that the output gear 152 can be directly engaged with the rack to drive the rotation of the rack, or can be indirectly power-connected to the rack through a reduction gear set to drive the rotation of the rack with appropriate torque.

[0057] Further, please refer to Figure 6 , the connecting pipe 132 comprises: a first sub-pipe 161 in communication with the spray nozzle 131; the first sub-pipe 161 is provided with a first valve, and the control assembly controls the opening or closing of the first valve; a second sub-pipe 162 in communication with the spray nozzle 131; the second sub-pipe 162 is provided with a second valve, and the control assembly controls the opening or closing of the second valve.

[0058] Gas can flow to the spray nozzle 131 through the first sub-pipe 161, and liquid can flow to the spray nozzle 131 through the second sub-pipe 162. When the first valve is open and the second valve is closed, only gas flows to the spray nozzle 131, and the spraying assembly sprays gas, which can preliminarily clean the measured sample; when the first valve is closed and the second valve is open, only liquid flows to the spray nozzle 131, and the spraying assembly sprays liquid, which can further clean the measured sample; when the first valve is open and the second valve is open, gas and liquid flow to the spray nozzle 131, and after mixing, they are sprayed from the spraying assembly, which can further improve the cleaning ability. Of course, liquid spraying and gas spraying can also be performed in sequence. First, liquid is used to wash the dirt such as mud on the surface of the core, which is difficult to blow off directly, and then gas is used to dry the core, so that the test results obtained for the dried core surface are more accurate.

[0059] Further, referring to Figure 6 The portable short-wave infrared spectrometer for field use in the embodiment of the application further comprises a spraying source, which comprises an air flow source 163 and a liquid flow source 164. The air flow source 163 can be in the form of an air pump and is in communication with the first sub-tube 161 to introduce air into the first sub-tube 161. The liquid flow source 164 can be in the form of a liquid pump and is in communication with the second sub-tube 162 to introduce liquid into the second sub-tube 162.

[0060] Compared with the prior art, the portable short-wave infrared spectrometer for field use provided in the embodiment can achieve the following beneficial effects:

[0061] 1. By integrally arranging the detection mechanism on the holding mechanism, the geologist can directly use the detection mechanism to detect at the collection position of the measured sample such as the rock on the field outcrop and the rock core obtained by drilling while holding the holding mechanism in the field work site, directly obtain high-quality spectral data in the field site, greatly improve the spectral detection efficiency, and reduce the detection cost.

[0062] 2. The detection mechanism further comprises a spraying assembly, which is used to clean the dust and other dirt on the surface of the measured sample when the spectral detection is performed in the field site, thereby improving the accuracy of the spectral detection and enabling the high-quality spectral data to be directly obtained in the field.

[0063] 3. The spraying assembly comprises a spraying nozzle and a connecting pipe which are sequentially communicated, can spray gas and / or liquid, and clean the surface of the measured sample and the probe assembly, thereby improving the accuracy of the spectral detection. In addition to being used to spray gas and / or liquid, the spraying nozzle can cover the measured surface of the measured sample when the spectral detection is performed, reduce the influence of the ambient light on the spectral detection, and also improve the accuracy of the spectral detection.

[0064] The above merely describes the preferred specific embodiments of the application, but the protection scope of the application is not limited thereto, and any changes or replacements within the technical scope disclosed in the application can be easily thought of by those skilled in the art and should be covered within the protection scope of the application.

Claims

1. A portable short-wave infrared spectrometer for field use, characterized in that, The application relates to a handheld short-wave infrared spectrum detection device, which comprises a holding mechanism (2) and a detection mechanism (1) arranged on the holding mechanism (2); wherein the detection mechanism (1) comprises a main body (11) and a probe assembly (12); the main body (11) extends along a first direction; the probe assembly (12) is arranged at one end of the main body (11) along the first direction and is configured to perform short-wave infrared spectrum detection on a sample to be detected; the holding mechanism (2) extends along a second direction and is used for being held by an operator; and the first direction and the second direction intersect.

2. The portable shortwave infrared spectrometer for field use according to claim 1, characterized in that, The included angle between the first direction and the second direction is 100-130 degrees.

3. The portable shortwave infrared spectrometer for field use according to claim 1, characterized in that, The detection mechanism (1) further comprises a spraying assembly which is configured to clean the sample to be detected.

4. The portable shortwave infrared spectrometer for field use according to claim 3, characterized in that, The spraying assembly comprises a spraying nozzle (131) and a connecting pipe (132) which are sequentially connected; the spraying nozzle (131) is annular and extends along the first direction; and the spraying nozzle (131) at least partially surrounds the probe assembly (12).

5. The portable shortwave infrared spectrometer for field use according to claim 1, characterized in that, The probe assembly (12) comprises a shell (121), a light source assembly (122) and a detection assembly (123) arranged in the shell (121); wherein the shell (121) is cylindrical and extends along the first direction; the end of the shell (121) is provided with a transparent lens; the light source assembly (122) comprises an optical fiber which passes through the shell (121) and the main body (11); and the detection assembly (123) comprises a transmission signal line which passes through the shell (121) and the main body (11).

6. The portable shortwave infrared spectrometer for field use according to claim 5, characterized in that, Further, a host (124) and a short-wave infrared light source (125) are arranged; the host (124) is electrically connected with the transmission signal line; and the short-wave infrared light source (125) is connected with the optical fiber.

7. The portable shortwave infrared spectrometer for field use according to claim 4, characterized in that, The spraying nozzle (131) is frustoconical and gradually increases in diameter along the spraying direction.

8. The portable shortwave infrared spectrometer for field use according to claim 7, characterized in that, The spraying nozzle (131) comprises a first end plate (141) which is located at the end face of the spraying nozzle (131) along the spraying direction; and the first end plate (141) is provided with a plurality of first through holes which are arranged in the circumferential direction.

9. The portable shortwave infrared spectrometer for field use according to claim 8, characterized in that, The spraying nozzle (131) further comprises a second end plate (142) which is located on the side opposite to the first end plate (141) along the spraying direction; the second end plate (142) is provided with a plurality of second through holes which are arranged in the circumferential direction; the shape of the first through holes is the same as that of the second through holes along the spraying direction; and a plurality of guide plates (143) are arranged between the first end plate (141) and the second end plate (142).

10. The portable shortwave infrared spectrometer for field use according to claim 9, characterized in that, The first end of the guide plate (143) is hinged to the first end plate (141); the second end of the guide plate (143) is hinged to the second end plate (142); and the second end plate (142) is rotatably arranged relative to the first end plate (141) and the rotation axis is parallel to the first direction.

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