Device for optical detection and detection method of Mars material

Abstract

The invention provides a device for optical detection and a detection method of a Mars material, and relates to the technical field of optical detection equipment.The device for optical detection comprises a detection box body, a detection device and a control system, the optical detection mechanism is mounted in the range of the detection groove; the optical detection mechanism comprises a metal plate supporting piece, a spectrum detection assembly and a laser irradiation assembly, the metal plate supporting piece is rotationally installed on the detection box body, the spectrum detection assembly is installed on the detection box body, and the laser irradiation assembly is installed on the detection box body; the detection method of the Mars material adopts the device for optical detection to perform optical detection and analysis on the Mars material. According to the scheme, negative pressure extraction in the test space is finally realized conveniently, and adjustment of a negative pressure environment is provided for a detection environment, so that material detection and analysis in environments with different negative pressure degrees can be simulated conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of optical detection equipment, and in particular to an optical detection device and a detection method for Martian materials. Background Art

[0002] LIBS is a popular in-situ online detection technology. During the detection process, a short pulse laser with high energy density is focused on the sample surface through a focusing lens; when the laser pulse irradiance exceeds the ablation threshold of the sample, the sample is ablated into plasma; the spectrometer collects the spectrum emitted by the plasma; the collected spectrum can be used to analyze the elemental composition of the sample, and can perform qualitative and quantitative analysis of the sample; LIBS has the advantages of simultaneous analysis of multiple elements, low sample loss, remote control and real-time detection.

[0003] In the related prior art, publication number: CN118483202A discloses a LIBS fluorescence spectrum collection and detection device and method, which relates to the field of LIBS detection technology. The device includes: a fluorescence spectrum collection device, a fluorescence spectrum detection component, a laser pulse source, a dichroic mirror, a first convex lens and a second convex lens; the fluorescence spectrum collection device includes a parabolic reflector and an aspheric lens; the laser pulse generated by the laser pulse source is incident and focused on the surface of the sample to be tested through the aspheric lens to generate plasma, a part of the fluorescence generated by the plasma is collected by the parabolic reflector as a collimated light beam and then collected by the first convex lens, and transmitted to the fluorescence spectrum detection component through a pigtail for detection; another part of the fluorescence generated by the plasma is collected by the fluorescence spectrum collection device and then reflected by the dichroic mirror, enters the second convex lens, and is transmitted to the fluorescence spectrum detection component through a pigtail for detection.

[0004] Since the space / Mars environment is in a non-atmospheric pressure environment, when testing and analyzing materials in some special environments (such as Martian materials and lunar soil materials), the materials themselves are in extreme environments. When analyzing such materials, comprehensive testing of extreme environments (different negative pressure / vacuum environments) is necessary to analyze the composition characteristics of the materials in extreme environments. It is inconvenient to adjust the vacuum degree of the environment when using existing spectral detection equipment during material testing.

[0005] Therefore, it is necessary to provide an optical detection device to solve the above technical problems. Summary of the invention

[0006] The present invention provides an optical detection device, which solves the problem in the related art that the vacuum degree of the environment of the spectrum detection equipment is inconvenient to adjust when the material is detected.

[0007] In order to solve the above technical problems, the optical detection device provided by the present invention comprises: A detection box body, wherein the detection box body is provided with a detection slot; An optical detection mechanism, the optical detection mechanism is installed within the range of the detection tank; the optical detection mechanism comprises a metal plate support, a spectrum detection component and a laser irradiation component, the metal plate support is rotatably mounted on the detection box, the spectrum detection component is mounted on the detection box, and the laser irradiation component is mounted on the detection box; A switch mechanism, the switch mechanism comprising a first telescopic member and a switch cover, the switch cover penetrates the detection box and is slidably sealed, the switch cover is aligned within the range of the detection slot, and the first telescopic member is used to drive the switch cover to rise and fall; A negative pressure control mechanism, the negative pressure control mechanism includes a negative pressure pump, a connecting pipe and an exhaust pipe, the negative pressure pump is fixed on the detection box, the connecting pipe is fixedly connected to the negative pressure pump and the exhaust pipe, and the input end of the exhaust pipe passes through the detection box and is connected to the range of the detection tank.

[0008] Preferably, a negative pressure detection instrument is installed on the detection box.

[0009] Preferably, the spectrum detection assembly is composed of a deflection mirror, a second beam splitter, a second focusing lens, a CCD, an image splitter, a slit and a grating spectrometer; the image splitter is used to allow all signals of the light spot to enter the spectrometer; the deflection mirror is driven by an independent control structure, and the angle of the deflection mirror is controlled by the control structure to ensure that the light spot is at the center of the grating spectrometer; The laser irradiation assembly consists of a laser, a beam splitter and a focusing lens.

[0010] Preferably, the negative pressure control mechanism also includes a driving member and a rotating cylinder, the rotating cylinder is rotatably mounted on the connecting tube, a first connecting hole is provided on the rotating cylinder, the driving member is mounted on the detection box, and the driving member is used to drive the rotating cylinder to rotate and adjust; the first connecting hole is aligned with the range of the exhaust pipe.

[0011] Preferably, the negative pressure control mechanism also includes a ventilation pipe, which is fixedly connected to the connecting pipe. A second connecting hole and a third connecting hole are also provided on the rotating cylinder. The second connecting hole is aligned with the range of the exhaust pipe, and the third connecting hole is aligned with the range of the ventilation pipe.

[0012] Preferably, a sample preparation groove is provided on the top of the detection box; the optical detection device also includes a compaction sample preparation mechanism, which is installed within the range of the sample preparation groove, and the compaction sample preparation mechanism includes a lifting and pressing plate, a second telescopic member, a pressure-bearing template and a third telescopic member, the lifting and pressing plate is slidably installed on the detection box, the fixed part of the second telescopic member is fixed on the detection box, the lifting part of the second telescopic member is fixedly connected to the lifting and pressing plate, the third telescopic member is installed on the detection box, and the third telescopic member is used to drive the pressure-bearing template to move and adjust, the pressure-bearing template is slidably installed on the detection box, and the moving range of the pressure-bearing template is aligned with the downward pressure range of the lifting and pressing plate.

[0013] Preferably, the third telescopic member is a spring telescopic tube structure, and two ends of the third telescopic member are hinged to the lifting and lowering plate and the pressure template respectively.

[0014] Preferably, the first telescopic member comprises a first gear member, a screw rod and a lifting frame, the screw rod is rotatably mounted on the detection box, the first gear member is fixed on the screw rod, the lifting frame is fixed on the switch cover, the screw rod passes through the lifting frame and is threadedly connected; the driving member is a gear structure; The optical detection device also includes: A switching mechanism, wherein the switching mechanism is mounted on the detection box; The driving device comprises a motor and a second gear member, wherein the motor is fixedly mounted on the moving part of the switching mechanism, the second gear member is fixedly mounted on the shaft end of the motor, and the second gear member is aligned within the meshing range of the first gear member and the driving member.

[0015] Preferably, the switching mechanism includes an elastic telescopic part and an L-shaped frame, one end of the L-shaped frame is fixedly connected to the motor, the other end of the L-shaped frame passes through the detection box and is inserted into the range of the sample preparation groove, one end of the elastic telescopic part is embedded in the L-shaped frame, and the other end of the elastic telescopic part is fixedly connected to the pressure template.

[0016] The present invention also provides a method for detecting Martian materials, which uses the optical detection device to perform optical detection and analysis on Martian materials.

[0017] Compared with the related art, the optical detection device provided by the present invention has the following beneficial effects: The first telescopic member is used to conveniently control the lifting and lowering adjustment of the switch cover. When the switch cover is closed in the detection slot, the metal plate support is in a sealed "test space" to provide a sealed detection environment for the detection material. Before the detection, the negative pressure pump, the connecting pipe and the exhaust pipe are used to conveniently extract negative pressure in the test space to provide negative pressure environment adjustment for the detection environment, so as to simulate material detection and analysis in environments with different negative pressure levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A three-dimensional diagram of a first embodiment of the optical detection device provided by the present invention; Figure 2 for Figure 1 A cross-sectional view of the AA portion is shown; Figure 3 for Figure 2 A schematic structural diagram of a cross-section of the connecting pipe shown; Figure 4 A system diagram of an optical detection mechanism in an optical detection device provided by the present invention; Figure 5 for Figure 4 The schematic diagram of the optical detection mechanism shown; Figure 6 for Figure 1 A cross-sectional view of the BB portion shown; Figure 7 The adjusting principle diagram of the rotating cylinder of the optical detection device provided by the present invention, wherein: Figure 7 (a) is the state diagram of the rotating drum in the negative pressure adjustment position. Figure 7 (b) is a diagram showing the rotating drum in the negative pressure locking position. Figure 7 (c) is a state diagram of the rotating drum in the negative pressure release position; Figure 8 A three-dimensional diagram of a second embodiment of the optical detection device provided by the present invention; Fig. 9 for Figure 8 A cross-sectional view of the CC portion is shown; Fig.10 for Fig. 9 A top view of the drive member connection structure shown; Fig.11 for Fig. 9 A top view of the L-shaped frame connection structure shown; Fig.12 The schematic diagram of the second embodiment of the optical detection device provided by the present invention, wherein: Fig.12 (a) is the front view of the pressure formwork in the unfolded state. Fig.12 (b) is a front view of the pressure-bearing template aligned with the lifting and lowering pressure plates. Fig.12 (c) is a front view of the state of the pressure-bearing template and the lifting and lowering pressure plate being butted together for sample preparation; Fig.13 The schematic diagram of the optical detection device provided by the present invention in the sample preparation state, wherein: Fig.13 (a) in the equation is Fig. 9 A front view of the motor shown in rotation mode, Fig.13 (b) in the equation is Fig.10 A top view of the second gear member is shown in a rotational mode.

[0020] Description of Figure Numbers: 1. Detection box; 101. Detection tank; 102. Sample preparation tank; 11. Negative pressure detection instrument; 2. Optical detection mechanism; 21. Metal plate support; 22. Spectral detection component; 23. Laser irradiation component; 3. switch mechanism; 31. first telescopic member; 32. switch cover; 4. Negative pressure control mechanism; 41. Negative pressure pump; 42. Connecting pipe; 43. Air extraction pipe; 44. Air exchange pipe; 45. Driving member; 46. Rotating cylinder; 461. First connecting hole; 462. Second connecting hole; 463. Third connecting hole; 5. Compacting sample making mechanism; 51. Lifting and lowering pressure plate; 52. Second telescopic member; 53. Pressure-bearing template; 54. Third telescopic member; 6. Switching mechanism; 61. Elastic expansion member; 62. L-shaped frame; 311, first gear member; 312, screw rod; 313, lifting frame; 7. Driving device; 71. Motor; 72. Second gear member.

[0021] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The invention provides an optical detection device.

[0024] First embodiment: Please refer to Figures 1 to 3 In a first embodiment of the present invention, the optical detection device comprises: A detection box 1, wherein a detection slot 101 is provided on the detection box 1; An optical detection mechanism 2, the optical detection mechanism 2 is installed within the range of the detection slot 101; the optical detection mechanism 2 comprises a metal plate support 21, a spectrum detection component 22 and a laser irradiation component 23, the metal plate support 21 is rotatably installed on the detection box 1, the spectrum detection component 22 is installed on the detection box 1, the detection range of the spectrum detection component 22 is aligned with the range of the metal plate support 21, the laser irradiation component 23 is installed on the detection box 1, and the irradiation range of the laser irradiation component 23 is aligned with the range of the metal plate support 21; The switch mechanism 3 includes a first telescopic member 31 and a switch cover 32. The switch cover 32 penetrates the detection box 1 and is slidably sealed. The switch cover 32 is aligned within the detection slot 101. The first telescopic member 31 is used to drive the switch cover 32 to rise and fall; The negative pressure control mechanism 4 includes a negative pressure pump 41, a connecting pipe 42 and an exhaust pipe 43. The negative pressure pump 41 is fixed on the detection box 1. The connecting pipe 42 is fixedly connected to the negative pressure pump 41 and the exhaust pipe 43. The input end of the exhaust pipe 43 passes through the detection box 1 and is connected to the range of the detection tank 101.

[0025] like Figure 6 As shown, in this embodiment, a ventilation slot is provided on the detection box 1 to facilitate the normal operation of the negative pressure pump 41.

[0026] In this embodiment, when the switch cover 32 moves downward and abuts against the detection box 1, the switch cover 32 and the detection box 1 surround a "test space", which is located within the range of the detection slot 101, and the metal plate support 21, the spectrum detection component 22 and the laser irradiation component 23 are all installed within the range of the "test space".

[0027] Please refer to Figure 4 and Figure 5 The spectrum detection assembly 22 is composed of a deflection mirror, a second beam splitter, a second focusing lens, a CCD, an image splitter, a slit and a grating spectrometer; the image splitter is used to allow all signals of the light spot to enter the spectrometer; the deflection mirror is driven by an independent control structure, and the angle of the deflection mirror is controlled by the control structure to ensure that the light spot is at the center of the grating spectrometer; The laser irradiation assembly 23 is composed of a laser, a beam splitter and a focusing lens.

[0028] The control structure and the CCD form a closed-loop control system, the CCD detects the distribution position of the light spot on the grating spectrometer, and then the control structure drives the deflection mirror to rotate to adjust the distribution of the light spot on the grating spectrometer until the light spot is located at the center of the grating spectrometer, thereby realizing adaptive adjustment of the light spot position, further ensuring that the light beam can still enter the grating spectrometer adaptively due to various environmental dryness.

[0029] Among them (such as Figure 4 ), Nd:YAG laser, which is neodymium-doped yttrium aluminum garnet (Nd:YAG) laser; Ti-6Al-4V, sometimes called TC4, Ti64, is an alpha-beta titanium alloy with high specific strength and excellent corrosion resistance; Ti-6Al-4V alloy contains 90% Ti, 6% Al and 4% V, as well as some other impurities.

[0030] In this embodiment, the negative pressure pump 41 is a vacuum pump, which is used to adjust the negative pressure level within the test space.

[0031] Furthermore, a negative pressure detection instrument 11 is installed on the detection box 1 to detect the negative pressure condition of the detection state in the test space and provide support for the regulation and control of the negative pressure in the side test space.

[0032] In this embodiment, the switch cover 32 is a semi-transparent structure, which facilitates observation of the working conditions of the "test space" from the outside.

[0033] In this embodiment, the metal plate support 21 is made of silver plate, which has a relatively better effect of enhancing the spectral intensity of atmospheric elements and facilitates spectral analysis of detection materials.

[0034] The spectrum detection component 22 and the laser irradiation component 23 use the existing spectrum detection equipment system and detection method to perform spectrum detection and analysis on materials (Mars materials). The output end of the spectrum detection component 22 is connected to a computer through a spectrometer to display and record the data of the spectrum analysis; the laser irradiation component 23 is used to provide support for the spectrum irradiation of material detection.

[0035] The first telescopic member 31 is used to conveniently control the lifting and lowering adjustment of the switch cover 32. When the switch cover 32 is closed within the detection slot 101, the metal plate support 21 is within the sealed "test space", providing a sealed detection environment for the detection material. Before the detection, the negative pressure pump 41, the connecting pipe 42 and the exhaust pipe 43 are used to conveniently extract negative pressure in the test space, and provide negative pressure environment adjustment for the detection environment, so as to simulate material detection and analysis in environments with different negative pressure levels.

[0036] Please refer to Figure 2 and Figure 3 The negative pressure control mechanism 4 also includes a driving member 45 and a rotating cylinder 46. The rotating cylinder 46 is rotatably mounted on the connecting tube 42. A first connecting hole 461 is provided on the rotating cylinder 46. The driving member 45 is mounted on the detection box 1. The driving member 45 is used to drive the rotating cylinder 46 to rotate and adjust; the first connecting hole 461 is aligned with the range of the exhaust pipe 43.

[0037] The driving member 45 provides power for the rotation adjustment of the rotating cylinder 46. The rotating cylinder 46 and the connecting pipe 42 are movably connected, and the connection is rotationally sealed.

[0038] When the first connecting hole 461 is aligned with the air extraction pipe 43, the air extraction pipe 43 is connected with the connecting pipe 42; When the first connection hole 461 and the air extraction pipe 43 are staggered, the air extraction pipe 43 and the connection pipe 42 are closed.

[0039] The switch control between the connecting tube 42 and the exhaust tube 43 can be quickly realized by rotating the rotating cylinder 46 , thereby preventing the negative pressure in the “test space” from changing due to misoperation of the negative pressure pump 41 .

[0040] For further information, please refer again to Figure 3 The negative pressure control mechanism 4 also includes a ventilation pipe 44, which is fixedly connected to the connecting pipe 42. A second connecting hole 462 and a third connecting hole 463 are also provided on the rotating cylinder 46. The second connecting hole 462 is aligned with the range of the exhaust pipe 43, and the third connecting hole 463 is aligned with the range of the ventilation pipe 44.

[0041] In this embodiment, the rotating drum 46 includes three use stations: Negative pressure adjustment station, the first connection hole 461 is connected to the exhaust pipe 43, the third connection hole 463 is staggered with the ventilation pipe 44, the exhaust pipe 43 is open to the connecting pipe 42, and the ventilation pipe 44 is closed to the connecting pipe 42; Negative pressure locking position, the first connecting hole 461 and the exhaust pipe 43 are staggered, the second connecting hole 462 and the exhaust pipe 43 are staggered, the third connecting hole 463 and the ventilation pipe 44 are staggered, the exhaust pipe 43 and the connecting pipe 42 are closed, and the ventilation pipe 44 and the connecting pipe 42 are closed; Negative pressure release station, the second connecting hole 462 is connected to the exhaust pipe 43, the third connecting hole 463 is connected to the ventilation pipe 44, the exhaust pipe 43 and the connecting pipe 42 are open, and the ventilation pipe 44 and the connecting pipe 42 are open.

[0042] The driving member 45 provides power for the rotation switching of the use station of the rotating cylinder 46 .

[0043] Without starting the negative pressure pump 41, the driving member 45 controls the automatic rotation of the rotating cylinder 46, and the rotating cylinder 46 is used to control the switch of the ventilation tube 44 when rotating, so as to facilitate the rapid pressure release of the "test space" in a negative pressure state through the ventilation tube 44.

[0044] The working principle of the optical detection device provided in this embodiment is as follows: like Figure 2 As shown, the material to be tested is installed on the metal plate support 21 in advance, and the first telescopic member 31 is started, and the first telescopic member 31 drives the switch cover 32 to move downward, and the switch cover 32 moves downward and abuts against the detection box 1, so that a sealed test space is formed between the switch cover 32 and the detection box 1; like Figure 7 As shown in (a), when only the exhaust pipe 43 needs to be opened, the driving member 45 is started, and the driving member 45 drives the rotating cylinder 46 to rotate, and the rotating cylinder 46 drives the first connecting hole 461, the second connecting hole 462 and the third connecting hole 463 to rotate as a whole. After the first connecting hole 461 is aligned with the exhaust pipe 43, the exhaust pipe 43 is connected to the connecting pipe 42 and the test space; in this state, the negative pressure within the test space can be conveniently adjusted by the negative pressure pump 41, so as to adjust the negative pressure degree of the test environment; like Figure 7As shown in (b), when the exhaust pipe 43 needs to be closed, the driving member 45 is started, and the driving member 45 drives the rotating cylinder 46 to rotate, so that the first connecting hole 461 is separated from the exhaust pipe 43, and the rotating cylinder 46 is blocked between the exhaust pipe 43 and the connecting pipe 42, so that after the negative pressure level in the test space is adjusted to the detection requirement, the exhaust pipe 43 and the connecting pipe 42 are automatically closed without affecting the adjusted negative pressure level; like Figure 7 As shown in (c), when the material detection in the test space is completed, the driving member 45 is started first, and the driving member 45 drives the rotating cylinder 46 to rotate, so that the second connecting hole 462 is connected with the exhaust pipe 43, and the third connecting hole 463 is connected with the ventilation pipe 44, and the ventilation pipe 44 quickly releases the negative pressure in the test space, so that the detection environment in the test space is restored to the normal air pressure environment; After the negative pressure environment is restored, the first telescopic member 31 is started, and the first telescopic member 31 drives the switch cover 32 to move upward. The switch cover 32 moves upward and opens until the metal plate support 21 is completely exposed, so as to facilitate the replacement of the detection material.

[0045] Second embodiment: Please refer to Figure 8 , Fig. 9 and Fig.11 Based on the optical detection device provided by the first embodiment of the present invention, the second embodiment of the present invention provides another optical detection device. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0046] Specifically, the difference of the optical detection device provided by the second embodiment of the present invention is that a sample preparation groove 102 is arranged on the top of the detection box 1; the optical detection device also includes a compaction sample preparation mechanism 5, which is installed within the range of the sample preparation groove 102, and the compaction sample preparation mechanism 5 includes a lifting and pressing plate 51, a second telescopic member 52, a pressure template 53 and a third telescopic member 54, the lifting and pressing plate 51 is slidably installed on the detection box 1, the fixed part of the second telescopic member 52 is fixed on the detection box 1, the lifting part of the second telescopic member 52 is fixedly connected to the lifting and pressing plate 51, the third telescopic member 54 is installed on the detection box 1, and the third telescopic member 54 is used to drive the pressure template 53 to move and adjust, and the pressure template 53 is slidably installed on the detection box 1, and the moving range of the pressure template 53 is aligned with the pressing range of the lifting and pressing plate 51.

[0047] In this embodiment, the second telescopic member 52 provides power for the lifting and lowering adjustment of the lifting and lowering plate 51, which facilitates the lifting and lowering adjustment of the lifting and lowering plate 51; the third telescopic member 54 provides power for the movement and adjustment of the pressure template 53, which facilitates the movement and adjustment of the pressure template 53.

[0048] Sample preparation principle: When the test material needs to be pressed and sampled, the pressure-bearing template 53 is first moved to the left by the third telescopic member 54 and staggered with the lifting and pressing plate 51. After staggering, the test material is assembled into the pressing range of the pressure-bearing template 53. After the test material is assembled to the pressure template 53, the third telescopic member 54 is started first, and the third telescopic member 54 drives the pressure template 53 to move right and align it with the pressing range of the lifting and pressing plate 51, and then the second telescopic member 52 is started, and the second telescopic member 52 drives the lifting and pressing plate 51 to move downward, and the lifting and pressing plate 51 presses down and presses the test material into shape, so as to provide support for the subsequent detection and analysis of the test material; it is convenient to provide support for the preparation of test samples during the equipment detection process.

[0049] The device can be used not only for optical inspection and analysis of materials, but also for sample preparation before analysis, achieving dual functions in one machine, without the need to purchase a separate inspection sample preparation device.

[0050] In an optional implementation of the present embodiment, the third telescopic member 54 adopts an independent electric telescopic rod, the fixed part of the third telescopic member 54 is fixed on the detection box body 1, and the telescopic part of the third telescopic member 54 is fixed on the pressure template 53, so that the movement and adjustment of the pressure template 53 can be conveniently controlled by the third telescopic member 54 alone.

[0051] In another optional implementation of this embodiment, please refer to Fig. 9 The third telescopic member 54 is a spring telescopic tube structure, and two ends of the third telescopic member 54 are hinged to the lifting and pressing plate 51 and the pressure template 53 respectively.

[0052] In this embodiment, the third telescopic member 54 is arranged at an angle. When the lifting and pressing plate 51 is pressed down, the pressure template 53 can be controlled to move right by the third telescopic member 54; when the lifting and pressing plate 51 is moved up and reset, the pressure template 53 can be controlled to move left by the third telescopic member 54.

[0053] The structure of the spring telescopic tube of the third telescopic member 54 enables the pressure-bearing template 53 to be aligned with the pressing range of the lifting and pressing plate 51 after the pressure-bearing template 53 moves rightward and abuts against the fixed part of the second telescopic member 52; the lifting and pressing plate 51 can continue to move downward and press the material within the range of the pressure-bearing template 53 to prepare the test material sample.

[0054] When the second telescopic member 52 controls the lifting and lowering adjustment of the lifting and pressing plate 51, the lifting and pressing plate 51 synchronously drives the adaptive movement and adjustment of the pressure template 53 through the third telescopic member 54, so as to synchronously control the lifting and lowering of the lifting and pressing plate 51 and the horizontal movement of the pressure template 53 under the driving action of the second telescopic member 52.

[0055] In an optional implementation of the present embodiment, the first telescopic member 31 may be an independent electric telescopic rod, the driving member 45 is an independent motor structure, the first telescopic member 31 is used to independently drive the lifting and lowering adjustment of the switch cover 32; the driving member 45 is used to independently drive the rotation adjustment of the rotating cylinder 46.

[0056] In another optional implementation of this embodiment, please refer to Fig. 9 , Fig.10 and Fig.11 The first telescopic member 31 includes a first gear member 311, a screw rod 312 and a lifting frame 313. The screw rod 312 is rotatably mounted on the detection box 1. The first gear member 311 is fixed on the screw rod 312. The lifting frame 313 is fixed on the switch cover 32. The screw rod 312 passes through the lifting frame 313 and is threadedly connected. The driving member 45 is a gear structure. The optical detection device also includes: A switching mechanism 6, wherein the switching mechanism 6 is installed on the detection box 1; The driving device 7 includes a motor 71 and a second gear member 72. The motor 71 is fixed to the moving part of the switching mechanism 6. The second gear member 72 is fixed to the shaft end of the motor 71. The second gear member 72 is aligned with the meshing range of the first gear member 311 and the driving member 45.

[0057] In this embodiment, the first gear member 311 , the second gear member 72 and the driving member 45 are on the same horizontal plane.

[0058] In this embodiment, the motor 71 includes two usage modes: In the lifting mode, the second gear member 72 is engaged with the first gear member 311, the second gear member 72 is separated from the driving member 45, the motor 71 is used to drive the second gear member 72 to rotate and adjust, when the second gear member 72 rotates, the first gear member 311 drives the screw rod 312 to rotate, the screw rod 312 drives the lifting frame 313 to move up and down, and the lifting frame 313 drives the switch cover 32 to move up and down synchronously; In the rotation mode, the second gear member 72 is connected and meshed with the driving member 45, and the second gear member 72 is separated from the first gear member 311. The motor 71 is used to drive the second gear member 72 to rotate and adjust. When the second gear member 72 rotates, the driving member 45 drives the rotating cylinder 46 to rotate and adjust, thereby facilitating the quick switch of the exhaust pipe 43 for switching adjustment and pressure release.

[0059] The working principle of the motor 71 is as follows: When the switch cover 32 needs to be raised and lowered, the switching mechanism 6 controls the motor 71 to switch the mode, so that the motor 71 switches to the lifting mode, starts the motor 71, and the motor 71 drives the second gear member 72 to rotate, the second gear member 72 drives the first gear member 311 to rotate, the first gear member 311 drives the screw rod 312 to rotate, the screw rod 312 rotates to drive the lifting frame 313 to be raised and lowered, and the lifting frame 313 drives the switch cover 32 to be raised and lowered at the same time, so as to facilitate the switch control of the switch cover 32; When the exhaust pipe 43 needs to be quickly switched on and off for switching adjustment and pressure release, the switching mechanism 6 controls the motor 71 to switch the mode, so that the motor 71 switches to the rotation mode, starts the motor 71, and the motor 71 drives the second gear member 72 to rotate, the second gear member 72 drives the driving member 45 to rotate, the driving member 45 drives the rotating cylinder 46 to rotate, and the rotating cylinder 46 rotates to realize the opening or closing or pressure release of the exhaust pipe 43.

[0060] In an optional implementation of the present embodiment, the switching mechanism 6 may be a separate electric telescopic rod, providing a power source for the movement and adjustment of the motor 71; and is used to control the movement and adjustment of the motor 71 through a separate driving power.

[0061] In another optional implementation of this embodiment, please refer to Fig. 9 and Fig.11The switching mechanism 6 includes an elastic telescopic member 61 and an L-shaped frame 62, one end of the L-shaped frame 62 is fixedly connected to the motor 71, and the other end of the L-shaped frame 62 passes through the detection box 1 and is inserted into the range of the sample preparation groove 102. One end of the elastic telescopic member 61 is embedded and installed on the L-shaped frame 62, and the other end of the elastic telescopic member 61 is fixedly connected to the pressure template 53.

[0062] In this embodiment, the fixing portion of the second telescopic member 52 is arranged within the moving range of the pressure-bearing template 53; When the lifting and pressing plate 51 is in an upward state, the pressure template 53 is separated from the second telescopic member 52, and the lifting and pressing plate 51 and the pressure template 53 are staggered, which facilitates the loading and unloading of the pressure template 53.

[0063] The synchronous switching principle of the motor 71 and the lifting and lowering plate 51 is as follows: When sample preparation is required, the lifting and pressing plate 51 is driven upward by the second telescopic member 52. During the movement of the lifting and pressing plate 51 from top to bottom, the lifting and pressing plate 51 synchronously pushes the pressure-bearing template 53 to move through the third telescopic member 54. The pressure-bearing template 53 moves while driving the elastic telescopic member 61 to move. The elastic telescopic member 61 moves through the L-shaped frame 62 and the motor 71. The motor 71 drives the second gear member 72 to move. The second gear member 72 moves and separates from the first gear member 311. After separation, the second gear member 72 moves toward the The driving member 45 moves and engages with each other to realize the adaptive switching of the working mode of the motor 71; after the second gear member 72 is engaged and connected with the driving member 45, the elastic telescopic member 61 provides power for the continued movement of the pressure template 53, so that the lifting and pressing plate 51 can continue to move downward and drive the pressure templates 53 to align with each other. After alignment, the pressure template 53 abuts against the fixed part of the second telescopic member 52, and the lifting and pressing plate 51 can continue to move downward and be compacted on the pressure template 53 through the third telescopic member 54, so as to realize the downward pressing of the material in the pressure template 53; After the sample preparation is completed, the lifting and pressing plate 51 is driven to move upward by the second telescopic member 52. During the movement of the lifting and pressing plate 51 from bottom to top, the lifting and pressing plate 51 synchronously pulls the pressure template 53 to move left and reset through the third telescopic member 54. While the pressure template 53 moves, it drives the elastic telescopic member 61 to move left. The elastic telescopic member 61 drives the L-shaped frame 62 to move left. The L-shaped frame 62 drives the motor 71 and the second gear member 72 to move left. After the second gear member 72 is separated from the driving member 45, it is connected and meshed with the first gear member 311. The motor 71 is used to drive the switch cover 32 to move up and down. The switching of the working mode of the motor 71 is realized synchronously during the upward movement and reset of the lifting and pressing plate 51. The pressure-bearing template 53 and the motor 71 are connected by the elastic telescopic member 61 and the L-shaped frame 62. During the movement and adjustment of the pressure-bearing template 53, the pressure-bearing template 53 drives the motor 71 to move synchronously through the elastic telescopic member 61 and the L-shaped frame 62. When the motor 71 moves, it can also drive the second gear member 72 to move synchronously, so that the second gear member 72 moves and adjusts between the first gear member 311 and the driving member 45. Finally, the lifting and lowering plate 51 is simultaneously pressed downward during the process of the motor 71 switching from the lifting mode to the rotating mode. When the motor 71 switches from the rotation mode to the lifting mode, the lifting and lowering plate 51 is simultaneously moved upward and reset.

[0064] The working principle of the optical detection device provided in this embodiment is as follows: like Fig.12 (a) and Fig. 9 As shown, it may be defined that in the initial state, the lifting plate 51 is in an upward state, the motor 71 is in a lifting mode, the motor 71 is used to drive the switch cover 32 to lift and adjust, and the pressure template 53 is convenient for assembling the sample preparation material; Please refer to Fig.12 (a) to Fig.12 In (b), when the sample preparation material needs to be compacted and prepared, the third telescopic member 54 is activated, and the third telescopic member 54 drives the lifting and pressing plate 51 to move downward. When the lifting and pressing plate 51 moves downward, the second telescopic member 52 synchronously pushes the pressure template 53 to move rightward, and the pressure template 53 moves rightward and abuts against the fixed part of the third telescopic member 54; Please refer to Figures 9 to 13 (a) and Figures 10 to 13In (b), while the pressure template 53 moves rightward, the pressure template 53 synchronously drives the L-shaped frame 62 to move rightward through the elastic telescopic member 61, and the L-shaped frame 62 drives the motor 71 to move rightward, and the motor 71 drives the second gear member 72 to separate from the first gear member 311 until the second gear member 72 engages with the driving member 45, so that the motor 71 switches from the lifting mode to the rotation mode; Please refer to Fig.12 (b) to Fig.12 In (c), the lifting and pressing plate 51 can continue to move downward and press the second telescopic member 52 to adaptively contract. During this period, the pressure-bearing template 53 maintains contact with the fixed portion of the third telescopic member 54, and finally the lifting and pressing plate 51 is docked and compacted within the range of the pressure-bearing template 53, so as to facilitate compaction of the sample preparation material; like Fig.12 (c) and Fig.13 (a) and Fig.13 As shown in (b), the lifting plate 51 is in a compacting state, and the motor 71 is in a rotating mode. The motor 71 is used to drive the rotating cylinder 46 to rotate and adjust, so as to realize the switching of the use mode of the motor 71 while compacting and preparing samples; Finally, during the process of switching the use mode of the motor 71, the lifting and pressing plate 51 is simultaneously pressed down to prepare the sample, which is convenient for the preparation of the test sample.

[0065] The present invention also provides a method for detecting Martian materials, which uses the optical detection device to perform optical detection and analysis on Martian materials.

[0066] Specifically, the method for detecting Martian materials comprises the following steps: S1, detection equipment detection, check whether the spectral equipment operates normally; S2, test sample preparation, preparing material samples required for spectral detection; S3, test sample installation, open the switch cover 32, and install the prepared test sample into the test space; S4, environmental debugging, closing the switch cover 32, and adjusting the negative pressure level in the test space by the negative pressure pump 41; S5, spectral analysis, using spectral equipment to perform spectral detection on the test sample under a preset negative pressure environment, and the spectral data after detection is displayed and recorded by a computer; S6, the equipment is depressurized and cleaned, first the negative pressure in the test space is released, then the switch cover 32 is opened, the test sample is taken out and cleaned.

[0067] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An optical detection device, characterized in that: include: A detection box body, wherein the detection box body is provided with a detection slot; An optical detection mechanism, the optical detection mechanism is installed within the range of the detection tank; the optical detection mechanism comprises a metal plate support, a spectrum detection component and a laser irradiation component, the metal plate support is rotatably mounted on the detection box, the spectrum detection component is mounted on the detection box, and the laser irradiation component is mounted on the detection box; A switch mechanism, the switch mechanism comprising a first telescopic member and a switch cover, the switch cover penetrates the detection box and is slidably sealed, the switch cover is aligned within the range of the detection slot, and the first telescopic member is used to drive the switch cover to rise and fall; A negative pressure control mechanism, the negative pressure control mechanism includes a negative pressure pump, a connecting pipe and an exhaust pipe, the negative pressure pump is fixed on the detection box, the connecting pipe is fixedly connected to the negative pressure pump and the exhaust pipe, and the input end of the exhaust pipe passes through the detection box and is connected to the range of the detection tank.

2. The optical detection device according to claim 1, characterized in that: A negative pressure detection instrument is installed on the detection box.

3. The optical detection device according to claim 2, characterized in that: The spectrum detection assembly is composed of a deflection mirror, a second beam splitter, a second focusing lens, a CCD, an image splitter, a slit and a grating spectrometer; the image splitter is used to allow all signals of the light spot to enter the spectrometer; the deflection mirror is driven by an independent control structure, and the angle of the deflection mirror is controlled by the control structure to ensure that the light spot is at the center of the grating spectrometer; The laser irradiation assembly consists of a laser, a beam splitter and a focusing lens.

4. The optical detection device according to claim 3, characterized in that: The negative pressure control mechanism further includes a driving member and a rotating cylinder, wherein the rotating cylinder is rotatably mounted on the connecting tube, a first connecting hole is provided on the rotating cylinder, and the driving member is mounted on the detection box body, and the driving member is used to drive the rotating cylinder to rotate and adjust; The first connecting hole is aligned with the range of the exhaust pipe.

5. The optical detection device according to claim 4, characterized in that: The negative pressure control mechanism also includes a ventilation pipe, which is fixedly connected to the connecting pipe. A second connecting hole and a third connecting hole are also opened on the rotating cylinder. The second connecting hole is aligned with the range of the exhaust pipe, and the third connecting hole is aligned with the range of the ventilation pipe.

6. The optical detection device according to claim 5, characterized in that: A sample preparation groove is arranged on the top of the detection box; the optical detection device also includes a compaction sample preparation mechanism, which is installed within the range of the sample preparation groove. The compaction sample preparation mechanism includes a lifting and pressing plate, a second telescopic member, a pressure-bearing template and a third telescopic member. The lifting and pressing plate is slidably installed on the detection box, the fixed part of the second telescopic member is fixed on the detection box, the lifting part of the second telescopic member is fixedly connected to the lifting and pressing plate, the third telescopic member is installed on the detection box, and the third telescopic member is used to drive the pressure-bearing template to move and adjust. The pressure-bearing template is slidably installed on the detection box, and the moving range of the pressure-bearing template is aligned with the downward pressure range of the lifting and pressing plate.

7. The optical detection device according to claim 6, characterized in that: The third telescopic member is a spring telescopic tube structure, and two ends of the third telescopic member are respectively hinged to the lifting and lowering plate and the pressure template.

8. The optical detection device according to claim 7, characterized in that: The first telescopic member includes a first gear member, a screw rod and a lifting frame, the screw rod is rotatably mounted on the detection box, the first gear member is fixed on the screw rod, the lifting frame is fixed on the switch cover, and the screw rod passes through the lifting frame and is threadedly connected; The driving member is a gear structure; The optical detection device also includes: A switching mechanism, wherein the switching mechanism is mounted on the detection box; The driving device comprises a motor and a second gear member, wherein the motor is fixedly mounted on the moving part of the switching mechanism, the second gear member is fixedly mounted on the shaft end of the motor, and the second gear member is aligned within the meshing range of the first gear member and the driving member.

9. The optical detection device according to claim 8, characterized in that: The switching mechanism includes an elastic telescopic part and an L-shaped frame, one end of the L-shaped frame is fixedly connected to the motor, the other end of the L-shaped frame passes through the detection box and is inserted into the range of the sample preparation groove, one end of the elastic telescopic part is embedded and installed on the L-shaped frame, and the other end of the elastic telescopic part is fixedly connected to the pressure-bearing template.

10. A method for detecting Martian materials, characterized in that: The optical detection device as described in any one of claims 1 to 9 is used to perform optical detection and analysis on Martian materials.

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