Magnetism-driving bacteria superfluid viscosity measuring device

Abstract

The utility model discloses a magnetism-driving bacterial superfluid viscosity measuring device, relates to the technical field of fluid viscosity measurement, and is used for solving the technical problem of low accuracy of a bacterial superfluid viscosity measuring result in the prior art. The superfluid viscosity measuring device comprises a base, a single-shaft air bearing table, a container barrel, a rotating assembly, a torsional rigidity connecting piece and a spectrum confocal sensor assembly, wherein the single-shaft air floating table is arranged on the base, and the container barrel is arranged on the single-shaft air floating table through the bottom surface; the rotating assembly is arranged at the top of the container barrel through a support arranged on the base, and any rotating part of the rotating assembly extends to the interior of a first annular barrel body of the container barrel from the top of the container barrel; the torsional rigidity connecting piece is arranged in the single-shaft air bearing table with the hollow structure, one end is connected with the base, and the other end is connected with the bottom surface of the container cylinder; the spectral confocal sensor assemblies are symmetrically arranged on the outer surface of the container cylinder along the central axis of the container cylinder.

Description

Technical Field

[0001] This utility model relates to the field of fluid viscosity measurement technology, and more specifically, to a device for measuring the superfluid viscosity of magnetically driven bacteria. Background Technology

[0002] Superfluids are a special fluid phase characterized by zero viscosity and frictionless flow. In recent years, researchers have discovered that liquid systems containing self-driving microorganisms (such as bacteria) exhibit similar superfluid properties. When a community of active, motile bacteria is introduced into a liquid, the bacteria can generate flow through their own propulsion and form stable collective movement patterns under the influence of community interactions. This synergistic effect effectively reduces viscous dissipation within the fluid, resulting in a low-resistance flow characteristic and exhibiting the zero-viscosity behavior of superfluids. This type of fluid, whose rheological properties are regulated by active bacteria, is called a bacterial superfluid.

[0003] The viscosity of existing liquids is mainly measured by rheometers. However, due to limitations in measurement accuracy, rheometers can only measure liquids with high viscosity. Bacterial superfluids typically exhibit low viscosity, or even close to zero viscosity. Such fluids are beyond the measurement accuracy range of rheometers, resulting in low accuracy of rheometers in measuring the viscosity of bacterial superfluids. Utility Model Content

[0004] The purpose of this invention is to provide a magnetically driven bacterial superfluid viscosity measuring device to solve the technical problem of low accuracy in existing technology for measuring the viscosity of bacterial superfluids. Therefore, this invention achieves this through the following solution.

[0005] This invention provides a device for measuring the superfluid viscosity of magnetically driven bacteria, comprising:

[0006] A base, and a single-axis air-floating platform disposed on the base;

[0007] A container cylinder has a bottom surface and a first annular cylindrical body disposed on the bottom surface; the container cylinder is disposed on the single-axis air flotation platform via the bottom surface.

[0008] A rotating assembly is mounted on the top of the container cylinder via a bracket mounted on the base, wherein any rotating part of the rotating assembly extends from the top of the container cylinder into the interior of the first annular cylinder of the container cylinder;

[0009] A torsional stiffness connector is installed inside the hollow structure of the single-axis air-floating platform, with one end connected to the base and the other end connected to the bottom surface of the container cylinder.

[0010] A spectral confocal sensor assembly is symmetrically arranged on the outer surface of the container cylinder along the central axis of the container cylinder, and is used to measure the torsion angle of the container cylinder.

[0011] Compared with existing technologies, the magnetically displacing bacterial superfluid viscosity measuring device of this invention is used to measure the viscosity of fluids (specifically liquids) with low viscosity characteristics. Specifically, the base supports the entire device, the container holds the fluid to be measured, the rotating assembly applies rotational force to the fluid inside the container, the torsional stiffness connector detects or outputs the torsional torque experienced by the container during viscosity measurement, and the spectral confocal sensor assembly measures the torsion angle of the container. Further, the fluid to be measured (a low-viscosity fluid suitable for this device, such as a bacterial superfluid or a magnetically displacing bacterial superfluid) is added to the container. The rotating assembly is then activated. Under the action of the rotating part of the rotating assembly, the fluid to be measured generates friction between itself and the inner surface or wall of the container. This friction acts on the container during fluid shearing, causing the container to experience a torsional torque. Furthermore, since the bottom surface of the container is connected to a torsional stiffness connector, when the container is subjected to a torsional torque, the torsional stiffness connector will undergo torsional deformation to balance the external torsional torque; furthermore, when the container undergoes torsional deformation due to a torsional torque, the spectral confocal sensor assembly can detect the torsion angle. Torsional moment on the container cylinder Further expressed as twist angle Torsional stiffness of the connection component The product of, i.e. Furthermore, the viscous properties of the fluid to be measured can be obtained by the following formula. This allows for the measurement of fluid viscosity. ;in, This indicates the viscous properties of the fluid being measured. This represents the torsional moment acting on the container cylinder. Indicates the radius of the container cylinder. This indicates the angular velocity of the rotating part of the rotating component. Indicates the radius of the rotating part. This represents the contact area between the fluid being measured and the side wall of the rotating part of the rotating assembly. This indicates the distance from the rotating part to the inner wall of the container. The above-described technical solution of this invention solves the technical problem of low accuracy in measuring the viscosity of bacterial superfluids in existing technologies.

[0012] Furthermore, in the magnetically driven bacteria superfluid viscosity measuring device of this utility model, the torsional stiffness connector includes a first connecting plate and a second connecting plate, as well as a plurality of connecting pieces disposed between the first connecting plate and the second connecting plate.

[0013] The first connecting plate is connected to the base, and the second connecting plate is connected to the bottom surface.

[0014] Furthermore, the magnetically driven bacteria superfluid viscosity measuring device of this invention also includes a second annular cylinder and multiple closed wires;

[0015] The bottom surface of the container cylinder is provided with a first through hole, and the second annular cylinder passes through the first through hole and extends into the interior of the first annular cylinder, forming a spacer layer between the first annular cylinder and the second annular cylinder.

[0016] The rotating component has a hollow structure, and its rotating part extends to the spacer layer;

[0017] One end of each of the closed conductors passes sequentially through the single-axis air-floating platform of the hollow structure, the second annular cylinder, and the rotating assembly of the hollow structure before being closed and connected to its other end.

[0018] Furthermore, in the magnetically driven bacteria superfluid viscosity measuring device of this invention, a third connecting plate is provided inside the second annular cylinder at one end near the bottom surface.

[0019] The third connecting plate is symmetrically provided with a second through hole along the central axis of the second annular cylinder;

[0020] The torsional stiffness connector is connected to the third connecting plate via the second connecting plate;

[0021] The closed wire passes through the second through hole symmetrically arranged on the third connecting plate.

[0022] Furthermore, in the magnetically driven bacteria superfluid viscosity measuring device of this invention, the spectral confocal sensor assembly includes a spectral confocal sensor and a reflective surface;

[0023] The reflective surface is symmetrically arranged on the outer surface of the container cylinder along the central axis of the container cylinder;

[0024] The bracket extends from the base to both sides of the central axis of the container cylinder, and the spectral confocal sensor is provided on the bracket on both sides of the central axis of the container cylinder;

[0025] The lens of the spectral confocal sensor is positioned opposite to the reflective surface.

[0026] Furthermore, in the magnetically driven bacterial superfluid viscosity measuring device of this invention, the distances from the lenses of the two sets of spectral confocal sensors to the reflecting surface are equal.

[0027] Furthermore, in the magnetically driven bacteria superfluid viscosity measuring device of this invention, the rotating component includes a rotating power mechanism, a third annular cylinder, and a fourth connecting plate;

[0028] The rotating shaft of the rotating power mechanism is provided with the fourth connecting plate at its end. The third annular cylinder is connected to the rotating shaft through the fourth connecting plate and extends into the container cylinder.

[0029] Furthermore, in the magnetically driven bacteria superfluid viscosity measuring device of this utility model, the rotating power mechanism is a hollow motor, and the fourth connecting plate has a third through hole;

[0030] The third through hole is passed through one end of the rotating shaft of the hollow motor away from the hollow motor body, and the fourth connecting plate is sleeved on the rotating shaft.

[0031] The third annular cylinder is provided on the side of the fourth connecting plate away from the hollow motor body.

[0032] Furthermore, in the magnetically driven bacterial superfluid viscosity measuring device of this invention, the rotating shaft of the hollow motor, the central axis of the third annular cylinder and the third through hole are on the same straight line.

[0033] Furthermore, in the magnetically driven bacteria superfluid viscosity measuring device of this invention, one end of each closed wire passes sequentially through the hollow structure of the single-axis air-floating platform, the second annular cylinder, the third annular cylinder, the third through hole, and the rotating shaft of the hollow motor before being closed and connected to its other end. Attached Figure Description

[0034] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram of the overall structure of the magnetically driven bacterial superfluid viscosity measuring device of this utility model;

[0036] Figure 2 This is a partial structural schematic diagram of the viscosity measuring device of this utility model;

[0037] Figure 3 This is a partial structural diagram of the viscosity measuring device of this utility model;

[0038] Figure 4 This is a schematic diagram showing the torsional stiffness connector and container cylinder in the viscosity measuring device of this utility model;

[0039] Figure 5This is a schematic diagram of the torsional stiffness connector in the viscosity measuring device of this utility model;

[0040] Figure 6 This is a schematic diagram of the container cylinder in the viscosity measuring device of this utility model;

[0041] Figure 7 This is a schematic diagram of the bottom surface of the container cylinder in the viscosity measuring device of this utility model;

[0042] Figure 8 This is a schematic diagram of the rotating component in the viscosity measuring device of this utility model;

[0043] Figure 9 This is a partial structural diagram of a closed conductor in the viscosity measuring device of this utility model;

[0044] Figure 10 This is a partial structural diagram of another closed wire display in the viscosity measuring device of this utility model;

[0045] Figure label:

[0046] 1. Base; 2. Single-axis air-floating platform; 3. Container cylinder; 301. Bottom surface; 3011. First through hole; 302. First annular cylinder; 4. Rotating assembly; 401. Rotating power mechanism; 402. Third annular cylinder; 403. Fourth connecting plate; 5. Bracket; 6. Torsional stiffness connector; 601. First connecting plate; 602. Second connecting plate; 603. Connecting piece; 7. Spectral confocal sensor assembly; 701. Spectral confocal sensor; 702. Reflecting surface; 8. Second annular cylinder; 9. Closed wire; 10. Third connecting plate; 1001. Second through hole. Detailed Implementation

[0047] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0048] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0050] The viscosity of existing liquids is mainly measured by rheometers. However, due to limitations in measurement accuracy, rheometers can only measure liquids with high viscosity. Bacterial superfluids typically exhibit low viscosity, or even close to zero viscosity. Such fluids are beyond the measurement accuracy range of rheometers, resulting in low accuracy of rheometers in measuring the viscosity of bacterial superfluids.

[0051] To resolve the above technical issues, please refer to Figures 1 to 10 This utility model provides a device for measuring the superfluid viscosity of magnetically driven bacteria, including a base 1, a uniaxial air-floating platform 2, a container 3, a rotating assembly 4, a torsional stiffness connector 6, and a spectral confocal sensor assembly 7; wherein:

[0052] A single-axis air-float platform 2 is mounted on a base 1. A container cylinder 3 has a bottom surface 301 and a first annular cylinder 302 mounted on the bottom surface 301. The container cylinder 3 is mounted on the single-axis air-float platform 2 via the bottom surface 301. A rotating assembly 4 is mounted on the top of the container cylinder 3 via a bracket 5 mounted on the base 1. Any rotating part of the rotating assembly 4 extends from the top of the container cylinder 3 into the interior of the first annular cylinder 302 of the container cylinder 3. A torsional stiffness connector 6 is mounted inside the hollow single-axis air-float platform 2, with one end connected to the base 1 and the other end connected to the bottom surface 301 of the container cylinder 3. A spectral confocal sensor assembly 7 is symmetrically arranged on the outer surface of the container cylinder 3 along the central axis of the container cylinder 3 and is used to measure the torsion angle of the container cylinder 3.

[0053] In specific implementation: The fluid to be measured (suitable for low-viscosity fluids of this device, such as bacterial superfluids or magnetically displacing bacterial superfluids) is added to the container 3 of the aforementioned magnetically displacing bacterial superfluid viscosity measuring device. The rotating component 4 of the device is then activated. Under the action of the rotating part of the rotating component 4, the fluid to be measured generates friction between the container 3 and its inner surface or inner wall. This friction acts on the container 3 during the fluid shearing process, causing the container 3 to be subjected to a torsional torque. Since the bottom surface 301 of the container cylinder 3 is connected to the torsional stiffness connector 6, when the container cylinder 3 is subjected to a torsional torque, the torsional stiffness connector 6 will undergo torsional deformation to balance the external torsional torque; when the container cylinder 3 undergoes torsional deformation due to the torsional torque, the spectral confocal sensor assembly 7 can detect the torsion angle. The torsional moment of container cylinder 3 Further expressed as twist angle Torsional stiffness of the torsional stiffness connector 6 The product of, i.e. Furthermore, the viscous properties of the fluid to be measured can be obtained by the following formula. This allows for the measurement of fluid viscosity. ;in, This indicates the viscous properties of the fluid being measured. This indicates the torsional moment acting on container cylinder 3. This represents the radius of container cylinder 3. This indicates the angular velocity of the rotating part of the rotating component 4. Indicates the radius of the rotating part. This indicates the contact area between the fluid being measured and the side wall of the rotating part of the rotating assembly 4. This indicates the distance from the rotating part to the inner wall of container cylinder 3.

[0054] Through the structure and specific implementation process of the above-described magnetically dispersive bacterial superfluid viscosity measuring device, it can be concluded that: the magnetically dispersive bacterial superfluid viscosity measuring device of this invention is used to measure the viscosity of fluids (specifically liquids) with low viscosity characteristics; specifically, the base 1 is used to support the entire device, the container 3 is used to contain the fluid to be measured, the rotating component 4 is used to apply shear force to the fluid in the container 3, the torsional stiffness connector 6 is used to detect or output the torsional torque experienced by the container 3 during the viscosity measurement process, and the spectral confocal sensor component 7 is used to measure the torsion angle of the container 3; furthermore, the fluid to be measured (a low-viscosity fluid suitable for this device, such as bacterial superfluid or magnetically dispersive bacterial superfluid) is added into the container 3, and the rotating component 4 of this device is activated. Under the action of the rotating part of the rotating component 4, the fluid to be measured generates friction with the inner surface or inner wall of the container 3. This friction acts on the container 3 during the fluid shearing process, causing the container 3 to be subjected to a torsional torque. Furthermore, since the bottom surface 301 of the container cylinder 3 is connected to the torsional stiffness connector 6, when the container cylinder 3 is subjected to a torsional torque, the torsional stiffness connector 6 will undergo torsional deformation to balance the external torsional torque; furthermore, when the container cylinder 3 undergoes torsional deformation due to the torsional torque, the spectral confocal sensor assembly 7 can detect the torsion angle. The torsional moment of container cylinder 3 Further expressed as twist angle Torsional stiffness of the torsional stiffness connector 6 The product of, i.e. Furthermore, the viscous properties of the fluid to be measured can be obtained by the following formula. This allows for the measurement of fluid viscosity. ;in, This indicates the viscous properties of the fluid being measured. This indicates the torsional moment acting on container cylinder 3. This represents the radius of container cylinder 3. This indicates the angular velocity of the rotating part of the rotating component 4. Indicates the radius of the rotating part. This indicates the contact area between the fluid being measured and the side wall of the rotating part of the rotating assembly 4. This indicates the distance from the rotating part to the inner wall of container cylinder 3. The above-described technical solution of this invention solves the technical problem of low accuracy in measuring the viscosity of bacterial superfluids in existing technologies.

[0055] It should be noted that the single-axis air-float platform 2 in this utility model is an existing component, and its principle is also existing technology. Those skilled in the art can directly purchase or use the commercially available single-axis air-float platform 2 for the magnetically driven bacteria superfluid viscosity measuring device of this utility model according to actual usage requirements, so as to realize the measurement of fluid viscosity.

[0056] To further illustrate the technical solution of this utility model, a description of the single-axis air-bearing platform 2 is provided here to facilitate those skilled in the art in selecting a suitable single-axis air-bearing platform 2 according to actual measurement requirements. Specifically, the single-axis air-bearing platform 2 used in this embodiment can be composed of two parts, typically a fixed base and a rotating bearing platform. These two parts are supported by a non-contact air film formed by compressed air. Furthermore, the air supply system of the single-axis air-bearing platform 2 is integrated into the fixed base, and compressed air is supplied to the air bearing of the rotating bearing platform through an air passage to form a uniform air film to ensure low-friction suspension. The single-axis configuration of the single-axis air-bearing platform 2 indicates that the bearing... The platform is only allowed to rotate around the vertical axis (which is consistent with the central axis of the container cylinder 3). Other translational and rotational degrees of freedom are constrained by the air-floating platform structure (such as guide grooves or limiting mechanisms). The working principle of the single-axis air-floating platform 2 used in this embodiment can be as follows: After the air supply system is started, compressed air enters the gap of the air-floating bearing from the fixed seat to form an air film, thereby lifting the platform and eliminating mechanical contact friction. When the fluid in the container cylinder 3 generates viscous shear force due to the drive of the rotating component 4, the container cylinder 3 is subjected to torque. The air-floating platform allows it to rotate freely around the vertical axis, and the uniform distribution of the air film ensures that the rotational resistance is minimal, avoiding interference with the measurement of torque.

[0057] Please see Figure 4 , Figure 5 and Figure 6As one possible implementation, in the magnetically driven bacteria superfluid viscosity measuring device of this utility model, the torsional stiffness connector 6 includes a first connecting plate 601 and a second connecting plate 602, and a plurality of connecting pieces 603 disposed between the first connecting plate 601 and the second connecting plate 602; the first connecting plate 601 is connected to the base 1, and the second connecting plate 602 is connected to the bottom surface 301.

[0058] In the above-described technical solution, in the magnetically driven bacteria superfluid viscosity measuring device of this invention, the first connecting plate 601 and the second connecting plate 602 are used to install the torsional stiffness connector 6. The connecting piece 603 between the first connecting plate 601 and the second connecting plate 602 can be multiple thin pieces, specifically four Invar steel thin pieces with a thickness of 0.1~1.5 mm. The setting of the connecting piece 603 makes the torsional stiffness connector 6 highly sensitive to changes in external torsional torque, thereby combining the torsion angle detected by the spectral confocal sensor assembly 7. The torsional torque on container cylinder 3 can be accurately obtained. Combined with the above calculation formula for the viscosity characteristics of the fluid to be measured, the accuracy of fluid viscosity measurement can be significantly improved.

[0059] Please see Figure 4 , Figure 6 and Figure 7 As one possible implementation, the magnetically driven bacteria superfluid viscosity measuring device of this utility model further includes a second annular cylinder 8 and a plurality of closed wires 9; the bottom surface 301 of the container cylinder 3 is provided with a first through hole 3011, the second annular cylinder 8 passes through the first through hole 3011 and extends into the interior of the first annular cylinder 302, forming a spacer layer between the first annular cylinder 302 and the second annular cylinder; the rotating component 4 is a hollow structure, and its rotating part extends into the spacer layer; one end of each closed wire 9 passes sequentially through the hollow single-axis air-floating platform 2, the second annular cylinder 8 and the hollow rotating component 4 and then closes and connects with its other end.

[0060] In the above-mentioned technical solution, the second annular cylinder 8 of this utility model can form a hollow structure inside the container cylinder 3, which is conducive to the closed wire 9 forming a loop around the container cylinder 3. Specifically, the fluid to be measured is added to the spacer layer of the above-mentioned technical solution, that is, the cavity between the first annular cylinder 302 and the second annular cylinder. The fluid to be measured can be the superfluid of ...

[0061] Please see Figure 4 ,as well as Figure 1 , Figure 5 , Figure 9 and Figure 10 In one possible implementation, in the magnetically driven bacterial superfluid viscosity measuring device of this invention, a third connecting plate 10 is provided inside the second annular cylinder near the bottom surface 301; second through holes 1001 are symmetrically arranged on the third connecting plate 10 along the central axis of the second annular cylinder; the torsional stiffness connector 6 is connected to the third connecting plate 10 through the second connecting plate 602; a closed wire 9 passes through the symmetrically arranged second through holes 1001 on the third connecting plate 10. With the above technical solution, the third connecting plate 10 is used to connect the torsional stiffness connector 6 to the container cylinder 3, and the symmetrically arranged second through holes 1001 on the third connecting plate 10 provide a passage for the closed wire 9 to pass through the interior of the container cylinder 3.

[0062] Please see Figure 1 , Figure 2 and Figure 7 As one possible implementation, in the magnetically driven bacteria superfluid viscosity measurement device of this utility model, the spectral confocal sensor assembly 7 includes a spectral confocal sensor 701 and a reflective surface 702; the reflective surface 702 is symmetrically arranged on the outer surface of the container cylinder 3 along the central axis of the container cylinder 3; the support 5 extends from the base 1 to both sides of the central axis of the container cylinder 3, and the spectral confocal sensor 701 is arranged on the support 5 on both sides of the central axis of the container cylinder 3; the lens of the spectral confocal sensor 701 is arranged opposite to the reflective surface 702.

[0063] In the above-described technical solution, in the magnetically driven bacteria superfluid viscosity measuring device of this invention, as mentioned above, the spectral confocal sensor assembly 7 is used to measure the torsion angle of the container cylinder 3; specifically, two spectral confocal sensors 701 are provided, which can be symmetrically arranged at 180° along the outer side of the container cylinder 3; since the torsional deformation is relatively small compared to the size of the container cylinder 3, the torsion angle can be considered as... The displacement measured by the spectral confocal sensor 701 has the following relationship: ,in, Indicates the angle of twist. and The displacement values ​​are obtained from two spectral confocal sensors 701, respectively. This represents the distance between the two spectral confocal sensors 701; further, the torsional torque on the container cylinder 3 can be obtained through the torsion angle and the torsional stiffness of the torsional stiffness connector 6, and thus the viscous characteristics of the fluid to be measured can be obtained. This process has been reflected by the aforementioned calculation formula and will not be repeated here; further, the distances from the lenses of the two sets of spectral confocal sensors 701 to the reflecting surface 702 are equal.

[0064] Please see Figure 1 , Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 10 In one possible implementation, the magnetically driven bacterial superfluid viscosity measuring device of this invention includes a rotating component 4 comprising a rotating power mechanism 401, a third annular cylinder 402, and a fourth connecting plate 403. The fourth connecting plate 403 is provided at the end of the rotating shaft of the rotating power mechanism 401, and the third annular cylinder 402 is connected to the rotating shaft via the fourth connecting plate 403, extending into the container cylinder 3. With the above technical solution, the third annular cylinder 402 extends into the container cylinder 3, and under the action of the rotating power mechanism 401, the third annular cylinder 402 can rotate at high speed relative to the container cylinder 3 (the third annular cylinder 402 is in contact with the flow to be measured inside the container cylinder 3), forming a stable laminar flow between the third annular cylinder 402 and the second container cylinder 3. At this time, the viscosity characteristics of the fluid to be measured are calculated using the aforementioned formula. hour, This indicates the distance between the outer surface of the third annular cylinder 402 and the inner surface of the second annular cylinder 8.

[0065] Please see Figure 1 , Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 10In one possible implementation, in the magnetically driven bacterial superfluid viscosity measuring device of this invention, the rotating power mechanism 401 is a hollow motor, and the fourth connecting plate 403 has a third through hole; the end of the rotating shaft of the hollow motor away from the hollow motor body passes through the third through hole, and the fourth connecting plate 403 is sleeved on the rotating shaft; a third annular cylinder 402 is provided on the side of the fourth connecting plate 403 away from the hollow motor body. With the above technical solution, the hollow motor and the third through hole provide a passage for the closed conductor 9, allowing multiple closed conductors 9 to form a stable annular magnetic field.

[0066] Please see Figure 1 , Figure 8 , Figure 9 and Figure 10 As one possible implementation, in order to further ensure the stability of the superfluid viscosity measuring device for demagnetizing bacteria during use or operation, and to form a stable annular magnetic field by multiple closed wires 9, the central axis of the rotating shaft of the hollow motor, the third annular cylinder 402, and the third through hole are arranged on the same straight line; furthermore, in the process of forming a stable annular magnetic field, one end of each closed wire 9 passes sequentially through the hollow single-axis air-floating platform 2, the second annular cylinder 8, the third annular cylinder 402, the third through hole, and the rotating shaft of the hollow motor, and then closes and connects with its other end.

[0067] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0068] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for measuring the superfluid viscosity of magnetically driven bacteria, characterized in that, include: A base, and a single-axis air-floating platform disposed on the base; A container cylinder has a bottom surface and a first annular cylindrical body disposed on the bottom surface; the container cylinder is disposed on the single-axis air flotation platform via the bottom surface. A rotating assembly is mounted on the top of the container cylinder via a bracket mounted on the base, wherein any rotating part of the rotating assembly extends from the top of the container cylinder into the interior of the first annular cylinder of the container cylinder; A torsional stiffness connector is installed inside the hollow structure of the single-axis air-floating platform, with one end connected to the base and the other end connected to the bottom surface of the container cylinder. A spectral confocal sensor assembly is symmetrically arranged on the outer surface of the container cylinder along the central axis of the container cylinder, and is used to measure the torsion angle of the container cylinder.

2. The magnetically driven bacteria superfluid viscosity measuring device according to claim 1, characterized in that, The torsional stiffness connector includes a first connecting plate and a second connecting plate, as well as a plurality of connecting pieces disposed between the first connecting plate and the second connecting plate. The first connecting plate is connected to the base, and the second connecting plate is connected to the bottom surface.

3. The magnetically driven bacteria superfluid viscosity measuring device according to claim 2, characterized in that, It also includes a second annular cylinder and multiple closed conductors; The bottom surface of the container cylinder is provided with a first through hole, and the second annular cylinder passes through the first through hole and extends into the interior of the first annular cylinder, forming a spacer layer between the first annular cylinder and the second annular cylinder. The rotating component has a hollow structure, and its rotating part extends to the spacer layer; One end of each of the closed conductors passes sequentially through the single-axis air-floating platform of the hollow structure, the second annular cylinder, and the rotating assembly of the hollow structure before being closed and connected to its other end.

4. The magnetically driven bacteria superfluid viscosity measuring device according to claim 3, characterized in that, A third connecting plate is provided inside the second annular cylinder at one end near the bottom surface; The third connecting plate is symmetrically provided with a second through hole along the central axis of the second annular cylinder; The torsional stiffness connector is connected to the third connecting plate via the second connecting plate; The closed wire passes through the second through hole symmetrically arranged on the third connecting plate.

5. The superfluid viscosity measuring device for magnetically driven bacteria according to claim 3, characterized in that, The spectral confocal sensor assembly includes a spectral confocal sensor and a reflective surface; The reflective surface is symmetrically arranged on the outer surface of the container cylinder along the central axis of the container cylinder; The bracket extends from the base to both sides of the central axis of the container cylinder, and the spectral confocal sensor is provided on the bracket on both sides of the central axis of the container cylinder; The lens of the spectral confocal sensor is positioned opposite to the reflective surface.

6. The magnetically driven bacteria superfluid viscosity measuring device according to claim 5, characterized in that, The distances from the lenses of the two sets of spectral confocal sensors to the reflecting surface are equal.

7. The magnetically driven bacteria superfluid viscosity measuring device according to claim 6, characterized in that, The rotating assembly includes a rotating power mechanism, a third annular cylinder, and a fourth connecting plate; The rotating shaft of the rotating power mechanism is provided with the fourth connecting plate at its end. The third annular cylinder is connected to the rotating shaft through the fourth connecting plate and extends into the container cylinder.

8. The magnetically driven bacteria superfluid viscosity measuring device according to claim 7, characterized in that, The rotary power mechanism is a hollow motor, and the fourth connecting plate has a third through hole; The third through hole is passed through one end of the rotating shaft of the hollow motor away from the hollow motor body, and the fourth connecting plate is sleeved on the rotating shaft. The third annular cylinder is provided on the side of the fourth connecting plate away from the hollow motor body.

9. The superfluid viscosity measuring device for magnetizing bacteria according to claim 8, characterized in that, The rotating shaft of the hollow motor, the central axis of the third annular cylinder, and the central axis of the third through hole are on the same straight line.

10. The magnetically driven bacteria superfluid viscosity measuring device according to claim 9, characterized in that, One end of each of the closed conductors passes sequentially through the single-axis air-floating platform, the second annular cylinder, the third annular cylinder, the third through hole, and the rotating shaft of the hollow motor in the hollow structure, and then closes and connects with the other end.

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