Observation platform for supergravity experiment

Abstract

The invention discloses a supergravity experiment-oriented observation platform, which comprises a test article assembly, two side plates, a bottom plate and two camera assemblies, and is characterized in that the test article assembly comprises a light source plate, a support, a transparent container, a transparent baffle plate and a check ring, and the support comprises a cylinder and a transparent plate-shaped piece; according to the invention, the two industrial cameras are adopted to observe the tested object in the direction opposite to the supergravity direction at an included angle of 25 degrees, and the observation precision can be ensured by combining the DIC technology. The unique design of the camera support and the lens clamp can provide effective support for the camera and the lens in a supergravity environment. The position of the camera support can be adjusted in the second sliding groove of the bottom plate, so that the distance between the two industrial cameras is adjusted, and a better observation effect is achieved. The slide rail design of the lens clamp enables the position of the lens clamp to be adjustable, and the lens fixing effect is better; the light source provides illumination from the back of the tested object, illumination is more uniform, and the observation effect can be improved; the transparent light source baffle can provide support for the light source plate and does not affect the light transmitting effect.

Description

Technical Field

[0001] The present invention relates to the technical field of hypergravity experiments, and in particular to an observation platform for hypergravity experiments. Background Art

[0002] Hypergravity refers to the force exerted on matter in an environment where the acceleration of gravity is much greater than that of the Earth's gravity. The science that studies the physical and chemical changes in a hypergravity environment is called hypergravity science. Centrifuges can be used in scientific experiments to create a hypergravity environment for related scientific research.

[0003] According to public literature, there is a lack of research on the design of dedicated observation platforms in hypergravity experimental research. There are few studies on how to ensure the safety of cameras and lenses in hypergravity fields, prevent the test objects from detaching and causing damage to the camera, and ensure the lighting and observation effects.

[0004] Therefore, it is necessary to develop an observation platform for supergravity experiments to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to design an observation platform for supergravity experiments in order to solve the above problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: An observation platform for supergravity experiments, comprising: A test product assembly; the test product assembly includes a light source board, a support, a transparent container, a transparent baffle, and a retaining ring. The support includes a cylinder and a transparent plate-like member. The first surface of the transparent plate-like member is installed on the first end of the cylinder. The light source board is installed on the second surface of the transparent plate-like member. The illumination direction of the light source board is from the first end of the cylinder toward the second end of the cylinder, and the illumination direction of the light source board is the supergravity direction. The transparent container is formed into a barrel-shaped structure, the transparent container is placed in the cylinder, the test product is pasted on the bottom surface of the transparent container, and the outer wall of the transparent container is in contact with the inner wall of the cylinder. The first surface of the transparent baffle is connected to the second end of the cylinder, the first surface of the transparent baffle is in contact with the top of the transparent container, and the retaining ring is connected to the second surface of the transparent baffle. Two side panels; first ends of the two side panels are respectively connected to two ends of the transparent plate-like member; The second ends of the two side panels are connected to the two ends of the bottom plate respectively; Two camera assemblies are used to photograph the test product; the angle between the two camera assemblies is 25°, the bottoms of the two camera assemblies are mounted on the bottom plate, and the two camera assemblies are placed below the test product assembly.

[0007] Specifically, the camera assembly includes two lens clamps, two lens clamp rods, lenses, cameras, camera supports, and two protrusions. The lens clamp is formed in a U shape. The two ends of the two lens clamps are respectively connected and then mounted on the outer wall of the first end of the lens. The first ends of the two lens clamp rods are respectively connected to the outer middle parts of the two lens clamps. The two protrusions are respectively installed on the first end of the camera support and are located on the opposite sides of the camera support. A first mounting screw hole is provided on the protrusion. The second end of the camera can be slidably placed in a cavity in the first end of the camera support. A first sliding groove is provided on the second end of the lens clamp rod along its length direction. A mounting bolt passes through the first sliding groove and is screwed into the first mounting screw hole for fixed connection between the lens clamp rod and the protrusion. The second end of the camera support is installed on the bottom plate. The two lens clamp rods are parallel to each other, and the two first sliding grooves on the two lens clamp rods are parallel to each other.

[0008] Specifically, two mounting plates are installed on both sides of the second end of the camera support, a plurality of second mounting screw holes are arranged on the mounting plates, and two groups of second slide grooves are arranged on the base plate. The length direction of the second slide grooves is the relative direction between the two camera assemblies, and each group includes two second slide grooves parallel to each other. The two second slide grooves in the first group of second slide grooves and the two second slide grooves in the second group of second slide grooves are respectively on the same straight line. The screw rod of the mounting bolt passes through the second mounting screw hole and the second slide groove and is fixed by a nut for connecting the camera support to the base plate.

[0009] Furthermore, the angle between the camera support and the bottom plate is 12.5°.

[0010] Furthermore, a plurality of threaded through holes are provided on the side of the camera support, and a plurality of threaded holes are provided on the second end side wall of the camera. A plurality of bolts are respectively screwed into the plurality of threaded through holes on the camera support and then screwed into the plurality of threaded holes on the camera for connection and fixation between the camera support and the camera.

[0011] Furthermore, the cavity in the camera support is provided with a bottom plate, and the second end portion of the camera is in contact with the bottom plate.

[0012] Preferably, the bottom plate is provided with a hollow opening for the camera power line and signal line to pass through.

[0013] Specifically, a plurality of round holes are arranged on the bottom plate, and bolts are passed through the round holes and screwed into the screw holes of the centrifuge hanging basket for connecting the bottom plate and the centrifuge hanging basket.

[0014] Furthermore, the test product assembly also includes a transparent light source baffle, which is arranged between the light source board and the transparent plate-shaped member.

[0015] Furthermore, the observation platform also includes two groups of reinforcing ribs, which are respectively installed at the connection between the two side plates and the bottom plate.

[0016] The beneficial effects of the present invention are: 1. Use two industrial cameras at an angle of 25 degrees to observe the test object against the direction of hypergravity, and combine DIC technology to ensure observation accuracy.

[0017] 2. The unique camera support and lens fixture design can provide effective support for the camera and lens in a hypergravity environment. The camera support can be adjusted in the second slide slot of the bottom plate to adjust the distance between the two industrial cameras for better observation. The slide rail design of the lens fixture makes its position adjustable, which has a better effect on the lens fixation.

[0018] 3. In order to prevent the test object from detaching and causing damage to the camera, a transparent baffle is designed for protection. At the same time, the high light transmittance of the baffle does not affect the observation effect.

[0019] 4. The light source provides illumination from the back of the test object, which makes the illumination more uniform and helps improve the observation effect; the transparent light source baffle can provide support for the light source board without affecting the light transmission effect.

[0020] 5. Strengthen the ribs to provide effective support for the side panels to prevent collapse.

[0021] 6. The overall structure is simple and reliable on the basis of practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the observation platform; Figure 2 This is an exploded view of the observation platform; Figure 3 It is a schematic diagram of the structure of the test product component; Figure 4 This is an exploded view of the test product assembly; Figure 5 is a schematic diagram of the structure of a camera assembly; Figure 6 This is an exploded view of the camera assembly; Figure 7 Schematic diagram of the installation of the observation platform in the geotechnical centrifuge.

[0023] Description of reference numerals: 1-test component; 2-side panel; 3-camera component; 4-bottom panel; 5-reinforcement rib; 101-transparent light source baffle, 102-support, 103-transparent container, 104-test sample, 105-transparent baffle, 106-retaining ring; 301-lens fixture, 302-lens fixture rod, 303-lens, 304-camera, 305-camera support, 306-first slide groove, 307-bump, 308-first mounting screw hole, 309-mounting plate, 310-second mounting screw hole; 401-second slide groove, 402-round hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] like Figure 1-4As shown, an observation platform for supergravity experiments includes: The test product assembly 1 comprises a light source board, a support 102, a transparent container 103, a transparent baffle 105, and a retaining ring 106. The support 102 comprises a cylinder and a transparent plate-like member. The first surface of the transparent plate-like member is mounted on the first end of the cylinder. The light source board is mounted on the second surface of the transparent plate-like member. The illumination direction of the light source board is from the first end of the cylinder toward the second end of the cylinder, and the illumination direction of the light source board is the supergravity direction. The transparent container 103 is formed into a cylindrical structure. The transparent container 103 is placed in the cylinder. The test product 104 is pasted on the inner bottom surface of the transparent container 103, and the outer wall of the transparent container 103 is in contact with the inner wall of the cylinder. The first surface of the transparent baffle 105 is connected to the second end of the cylinder. The first surface of the transparent baffle 105 contacts the top of the transparent container 103. The retaining ring 106 is connected to the second surface of the transparent baffle 105. Two side panels 2; first ends of the two side panels 2 are respectively connected to two ends of the transparent plate-like member; The second ends of the two side panels 2 are connected to the two ends of the bottom plate 4 respectively; Two camera assemblies 3 for photographing the test product 104; the angle between the two camera assemblies 3 is 25°, the bottoms of the two camera assemblies 3 are mounted on the bottom plate 4, and the two camera assemblies 3 are placed below the test product assembly 1; Two groups of reinforcing ribs 5; the two groups of reinforcing ribs 5 are respectively installed at the connection between the outer sides of the two side plates 2 and the bottom plate 4, and each group of reinforcing ribs 5 includes two triangular plate-like members parallel to each other.

[0032] like Figure 5-6 As shown, the camera assembly 3 includes two lens clamps 301, two lens clamp rods 302, a lens 303, a camera 304, a camera support 305, and two protrusions 307. The lens clamp 301 is formed into a U shape, specifically a semi-circular ring structure. The two ends of the two lens clamps 301 are respectively connected and then sleeved on the outer wall of the first end of the lens 303. The first ends of the two lens clamp rods 302 are respectively connected to the outer middle parts of the two lens clamps 301. The two protrusions 307 are respectively installed on the first end of the camera support 305 and are located on the opposite sides of the camera support 305. A first mounting screw hole 308 is provided on the protrusion 307, the second end of the camera 304 can be slidably placed in the cavity in the first end of the camera support 305, and a first slide groove 306 is provided on the second end of the lens clamp rod 302 along its length direction. A mounting bolt passes through the first slide groove 306 and is screwed into the first mounting screw hole 308 for fixed connection between the lens clamp rod 302 and the protrusion 307. The second end of the camera support 305 is installed on the base plate 4; the two lens clamp rods 302 are parallel to each other, and the two first slide grooves 306 on the two lens clamp rods 302 are parallel to each other.

[0033] like Figure 2 and 5 -6, two mounting plates 309 are installed on both sides of the second end of the camera support 305, and a plurality of second mounting screw holes 310 are arranged on the mounting plates 309. Two groups of second slide grooves 401 are arranged on the bottom plate 4. The length direction of the second slide grooves 401 is the relative direction between the two camera assemblies 3. Each group includes two second slide grooves 401 parallel to each other. The two second slide grooves 401 in the first group of second slide grooves 401 and the two second slide grooves 401 in the second group of second slide grooves 401 are respectively on the same straight line. The screw rod of the mounting bolt passes through the second mounting screw hole 310 and the second slide groove 401 and is fixed by a nut for connecting the camera support 305 with the bottom plate 4. The second slide groove 401 is used as a slide rail to fix the two camera assemblies 3 and facilitate the adjustment of the distance between the two.

[0034] In some embodiments, the angle between the camera support 305 and the base plate 4 is 12.5°.

[0035] like Figure 5-6 As shown, a plurality of threaded through holes are provided on the side of the camera support 305, and a plurality of threaded holes are provided on the second end side wall of the camera 304. A plurality of bolts are respectively screwed into the plurality of threaded through holes on the camera support 305 and then screwed into the plurality of threaded holes on the camera 304, for connection and fixation of the camera support 305 and the camera 304.

[0036] In some embodiments, the cavity in the camera holder 305 is provided with a bottom plate 4 , and the second end portion of the camera 304 is in contact with the bottom plate 4 .

[0037] In some embodiments, the bottom plate 4 is provided with a hollow opening for the power line and signal line of the camera 304 to pass through.

[0038] like Figure 2 and 7 As shown, a plurality of circular holes 402 are provided on the bottom plate 4, and bolts pass through the circular holes 402 and are screwed into the screw holes of the centrifuge hanging basket for connecting the bottom plate 4 with the centrifuge hanging basket.

[0039] like Figure 4 As shown, in some embodiments, the test product assembly 1 further includes a transparent light source baffle 101, which is disposed between the light source board and the transparent plate-like member. The transparent light source baffle 101, the light source board, and the transparent plate-like member are connected by bolts. The transparent light source baffle 101 provides support for the light source board.

[0040] In some embodiments, the transparent light source baffle 101, the transparent baffle 105, the transparent container 103, etc. can all be made of high-transmittance acrylic material. The side panels 2, the reinforcing ribs 5, the bottom panel 4, the lens fixture 301 and other structural parts can be made of aluminum alloy.

[0041] In some embodiments, the side panels 2 and the bottom panel 4, and the side panels 2 and the test product assembly 1 are connected by bolts. The reinforcing ribs 5 provide support for the side panels to prevent the side panels from collapsing due to the inability to withstand the hypergravity. Eight threaded holes are evenly distributed on one end of the cylinder, and eight threaded through holes are also evenly distributed on the transparent baffle 105 and the retaining ring 106. The support 102, the transparent baffle 105 and the retaining ring 106 are fixed by bolts. Two circular holes are symmetrically distributed on the bottom plate, which are used to fix the entire observation platform and the centrifuge basket. The transparent baffle 105 can prevent the test sample 104 from escaping from the transparent container 103 under the hypergravity field and hitting the camera to cause equipment damage. At the same time, the transparent baffle 105 has high light transmittance and does not affect the camera's observation of the test sample. The test sample 104 is attached to the inner bottom surface of the transparent container 103 by means of gluing, etc. The transparent container 103 has high light transmittance that affects the lighting effect of the light source. The transparent container 103 fits the inner wall of the outer wall support 102 , and under the hypergravity field, the transparent container 103 will be pressed on the transparent baffle 105 to be fixed.

[0042] In the camera assembly, two lens clamps 301 can clamp the lens. A threaded through hole is provided at one end of the lens clamp rod 302, which is convenient for fixing with the lens clamp 301 by bolts; a first slide groove 306 is provided at the other end of the lens clamp rod 302, which can be used as a slide rail to fix with the camera support 305, so as to facilitate the adjustment of the length. Because the two industrial cameras need to be at an angle of 25 degrees, the camera support 305 must have an inclination angle of 12.5 degrees to achieve this effect. The camera support 305 has three threaded through holes symmetrically distributed on both sides, which are fixed with the threaded holes on the camera body by bolts. In addition, the bottom of the camera is also in contact with the camera support 305, so as to effectively fix the camera. Most of the contact part between the camera support 305 and the bottom of the camera is hollowed out, which is convenient for the power cord and signal line of the camera 304 to be connected. Each of the two camera supports 305 has a cubic protrusion, and there is a threaded through hole in the protrusion, which is fixed with the lens clamp rod 302 by bolts. The bottom of the camera support 305 has two rows of three through holes each, which are fixed to the second slide groove on the bottom plate 4 by bolts, and the distance between the two cameras can be adjusted.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An observation platform for supergravity experiments, characterized in that: include: A test product assembly; the test product assembly includes a light source board, a support, a transparent container, a transparent baffle, and a retaining ring. The support includes a cylinder and a transparent plate-like member. The first surface of the transparent plate-like member is installed on the first end of the cylinder. The light source board is installed on the second surface of the transparent plate-like member. The illumination direction of the light source board is from the first end of the cylinder toward the second end of the cylinder, and the illumination direction of the light source board is the supergravity direction. The transparent container is formed into a barrel-shaped structure, the transparent container is placed in the cylinder, the test product is pasted on the bottom surface of the transparent container, and the outer wall of the transparent container is in contact with the inner wall of the cylinder. The first surface of the transparent baffle is connected to the second end of the cylinder, the first surface of the transparent baffle is in contact with the top of the transparent container, and the retaining ring is connected to the second surface of the transparent baffle. Two side panels; first ends of the two side panels are respectively connected to two ends of the transparent plate-like member; The second ends of the two side panels are connected to the two ends of the bottom plate respectively; Two camera assemblies are used to photograph the test product; the angle between the two camera assemblies is 25°, the bottoms of the two camera assemblies are mounted on the bottom plate, and the two camera assemblies are placed below the test product assembly.

2. The observation platform for supergravity experiments according to claim 1, characterized in that: The camera assembly includes two lens clamps, two lens clamp rods, lenses, cameras, camera supports, and two protrusions. The lens clamp is formed in a U shape. The two ends of the two lens clamps are respectively connected and then mounted on the outer wall of the first end of the lens. The first ends of the two lens clamp rods are respectively connected to the middle parts of the outer sides of the two lens clamps. The two protrusions are respectively installed on the first end of the camera support and are located on the opposite sides of the camera support. A first mounting screw hole is provided on the protrusion. The second end of the camera can be slidably placed in a cavity in the first end of the camera support. A first sliding groove is provided on the second end of the lens clamp rod along its length direction. A mounting bolt passes through the first sliding groove and is screwed into the first mounting screw hole for fixed connection between the lens clamp rod and the protrusion. The second end of the camera support is installed on the bottom plate. The two lens clamp rods are parallel to each other, and the two first sliding grooves on the two lens clamp rods are parallel to each other.

3. The observation platform for supergravity experiments according to claim 2, characterized in that: Two mounting plates are installed on both sides of the second end of the camera support, and multiple second mounting screw holes are arranged on the mounting plates. Two groups of second slide grooves are arranged on the bottom plate. The length direction of the second slide grooves is the relative direction between the two camera assemblies. Each group includes two second slide grooves parallel to each other. The two second slide grooves in the first group of second slide grooves and the two second slide grooves in the second group of second slide grooves are respectively on the same straight line. The screw rod of the mounting bolt passes through the second mounting screw hole and the second slide groove and is fixed by a nut for connecting the camera support to the bottom plate.

4. The observation platform for supergravity experiments according to claim 2, characterized in that: The angle between the camera mount and the base plate is 12.5°.

5. The observation platform for supergravity experiments according to claim 2, characterized in that: A plurality of threaded through holes are arranged on the side of the camera support, and a plurality of threaded holes are arranged on the second end side wall of the camera. A plurality of bolts are respectively screwed into the plurality of threaded through holes on the camera support and then screwed into the plurality of threaded holes on the camera for connecting and fixing the camera support and the camera.

6. The observation platform for supergravity experiments according to claim 2, characterized in that: The cavity in the camera support is provided with a bottom plate, and the second end of the camera contacts the bottom plate.

7. The observation platform for supergravity experiments according to claim 6, characterized in that: The bottom plate is provided with a hollow opening for the camera power line and signal line to pass through.

8. The observation platform for supergravity experiments according to claim 1, characterized in that: The bottom plate is provided with a plurality of round holes, and bolts are passed through the round holes and screwed into the screw holes of the centrifuge hanging basket for connecting the bottom plate with the centrifuge hanging basket.

9. The observation platform for supergravity experiments according to claim 1, characterized in that: The test product assembly also includes a transparent light source baffle, which is arranged between the light source plate and the transparent plate-shaped member.

10. The observation platform for supergravity experiments according to claim 1, characterized in that: The observation platform also includes two groups of reinforcing ribs, which are respectively installed at the connection between the two side plates and the bottom plate.

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