CN-224202971-U - Magnetic bacterium-expelling superfluid viscosity measuring device

CN224202971UCN 224202971 UCN224202971 UCN 224202971UCN-224202971-U

Abstract

The utility model discloses a magnetic bacteria-expelling 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 utility model discloses a magnetic bacteria-expelling superfluid viscosity measuring device which comprises a base, a single-axis air bearing table, a container barrel, a rotating assembly, a torsional rigidity connecting piece and a spectral confocal sensor assembly, wherein the single-axis air bearing table is arranged on the base, the container barrel is arranged on the single-axis air bearing table through the bottom surface, the rotating assembly is arranged at the top of the container barrel through a bracket arranged on the base, any rotating part of the rotating assembly extends to the inside of a first annular barrel body of the container barrel at the top of the container barrel, the torsional rigidity connecting piece is arranged in the single-axis air bearing table with a hollow structure, one end of the torsional rigidity connecting piece is connected with the base, the other end of the torsional rigidity connecting piece is connected with the bottom surface of the container barrel, and the spectral confocal sensor assembly is symmetrically arranged on the outer surface of the container barrel along the central axis of the container barrel.

Inventors

CAO SHILEI
ZHENG ZIRUI
LIU JIAN

Assignees

哈尔滨工业大学

Dates

Publication Date: 20260505
Application Date: 20250428

Claims (10)

1. A device for measuring the viscosity of a magnetic bacteria-repelling fluid, comprising: A base and a single-shaft air bearing table arranged on the base; The container cylinder is provided with a bottom surface and a first annular cylinder body arranged on the bottom surface, and is arranged on the single-shaft air floating platform through the bottom surface; A rotating assembly arranged at the top of the container cylinder through a bracket arranged on the base, wherein any rotating part of the rotating assembly extends to the inside of a first annular cylinder body of the container cylinder at the top of the container cylinder; the torsional rigidity connecting piece is arranged inside the single-shaft air floating platform with the hollow structure, one end of the torsional rigidity connecting piece is connected with the base, and the other end of the torsional rigidity connecting piece is connected with the bottom surface of the container barrel; And the spectral confocal sensor assemblies are symmetrically arranged on the outer surface of the container barrel along the central axis of the container barrel and are used for measuring the torsion angle of the container barrel.
2. The apparatus of claim 1, wherein the torsional rigidity connector comprises a first connector plate and a second connector plate, and a plurality of connector plates disposed between the first connector plate and the second connector plate; The first connecting plate is connected with the base, and the second connecting plate is connected with the bottom surface.
3. The magnetically driven bacteria superfluid viscosity measurement device of claim 2 further comprising a second annular cylinder and a plurality of closed wires; the bottom surface of the container cylinder is provided with a first through hole, the second annular cylinder penetrates through the first through hole and extends into the first annular cylinder, and a spacing layer is formed between the first annular cylinder and the second annular cylinder; the rotating component is of a hollow structure, and a rotating part of the rotating component extends to the spacing layer; One end of each closed wire sequentially passes through the single-shaft air floating table with the hollow structure, the second annular cylinder body and the rotating component with the hollow structure and then is in closed connection with the other end of the closed wire.
4. The apparatus for measuring the viscosity of a magnetic bacteria-repelling superfluid according to claim 3, wherein a third connecting plate is provided inside one end of the second annular cylinder near the bottom surface; Second through holes are symmetrically formed in the third connecting plate along the central axis of the second annular cylinder; The torsional rigidity connecting piece is connected with the third connecting plate through the second connecting plate; And the second through holes symmetrically arranged on the third connecting plate are internally penetrated by the closed wire.
5. A magneto-rheological bacteria superfluid viscosity measurement apparatus according to claim 3 wherein the spectral confocal sensor assembly comprises a spectral confocal sensor and a reflective surface; the reflecting surfaces are symmetrically arranged on the outer surface of the container barrel along the central axis of the container barrel; The brackets extend from the base to two sides of the central shaft of the container barrel, and the spectral confocal sensors are arranged on the brackets at two sides of the central shaft of the container barrel; The lens of the spectral confocal sensor is arranged opposite to the reflecting surface.
6. The apparatus of claim 5, wherein the lens-to-reflecting surface distances of the two sets of spectral confocal sensors are equal.
7. The apparatus of claim 6, wherein the rotating assembly comprises a rotary power mechanism, a third annular cylinder, and a fourth connecting plate; The end part of the rotating shaft of the rotating power mechanism is provided with the fourth connecting plate, the third annular cylinder body is connected with the rotating shaft through the fourth connecting plate, and the third annular cylinder body extends to the inside of the container cylinder.
8. The device for measuring the viscosity of a magnetic bacteria-repelling superfluid according to claim 7, wherein the rotary power mechanism is a hollow motor, and the fourth connecting plate is provided with a third through hole; One end, far away from the hollow motor main body, of a rotating shaft of the hollow motor passes through the third through hole and is sleeved on the rotating shaft by the fourth connecting plate; the side, far away from the hollow motor main body, of the fourth connecting plate is provided with the third annular cylinder.
9. The apparatus according to claim 8, wherein the rotation axis of the hollow motor, the third annular cylinder and the center axis of the third through hole are on the same straight line.
10. The device for measuring the viscosity of a magnetic bacteria-repelling superfluid according to claim 9, wherein one end of each of the closed wires sequentially passes through the rotation shaft of the single-shaft air bearing table, the second annular cylinder, the third through hole and the hollow motor of the hollow structure and then is closed and connected with the other end thereof.

Description

Magnetic bacterium-expelling superfluid viscosity measuring device Technical Field The utility model relates to the technical field of fluid viscosity measurement, in particular to a device for measuring the viscosity of a magnetic bacteria-expelling superfluid. Background Superfluid is a special fluid phase state and has the characteristics of zero viscosity, no friction flow and the like. In recent years, researchers have found that liquid systems containing self-driven microorganisms (e.g., bacteria) exhibit superfluid-like properties. When a population of bacteria with active movement capability is introduced into a liquid, the bacteria are able to generate a flow by self-driving and form a stable collective movement pattern under the influence of population interactions. The synergistic effect can effectively reduce the viscous dissipation in the fluid, so that the whole system has the characteristic of low resistance flow, and the zero-viscosity behavior of the superfluid is shown, and the fluid with the rheological property regulated by active bacteria is called a bacteria superfluid. The viscosity of the existing liquid is mainly measured by a rheometer, the rheometer can only measure the liquid with higher viscosity, the bacterial superfluid generally shows lower viscosity and even approaches zero viscosity, the viscosity of the fluid exceeds the measuring precision range of the rheometer, and the accuracy of the viscosity measuring result of the rheometer on the bacterial superfluid is low. Disclosure of utility model The utility model aims to provide a magnetic bacteria-expelling superfluid viscosity measuring device which is used for solving the technical problem that the accuracy of a bacterial superfluid viscosity measuring result in the prior art is low. In view of this, the present utility model is achieved by the following means. The utility model provides a device for measuring the viscosity of a magnetic bacteria-expelling superfluid, which comprises: A base and a single-shaft air bearing table arranged on the base; The container cylinder is provided with a bottom surface and a first annular cylinder body arranged on the bottom surface, and is arranged on the single-shaft air floating platform through the bottom surface; A rotating assembly arranged at the top of the container cylinder through a bracket arranged on the base, wherein any rotating part of the rotating assembly extends to the inside of a first annular cylinder body of the container cylinder at the top of the container cylinder; the torsional rigidity connecting piece is arranged inside the single-shaft air floating platform with the hollow structure, one end of the torsional rigidity connecting piece is connected with the base, and the other end of the torsional rigidity connecting piece is connected with the bottom surface of the container barrel; And the spectral confocal sensor assemblies are symmetrically arranged on the outer surface of the container barrel along the central axis of the container barrel and are used for measuring the torsion angle of the container barrel. Compared with the prior art, the magnetic bacteria-expelling super-fluid viscosity measuring device is used for measuring the viscosity of a fluid with low viscosity characteristic (particularly liquid), the base is used for supporting the whole device, the container cylinder is used for containing the fluid to be measured, the rotating component is used for applying a rotating force to the fluid in the container cylinder, the torsional rigidity connecting piece is used for detecting or outputting the torsional moment of the container cylinder in the viscosity measuring process, the spectral confocal sensor component is used for measuring the torsion angle of the container cylinder, the fluid to be measured (the fluid with low viscosity characteristic (such as bacteria super-fluid or magnetic bacteria-expelling super-fluid) is added into the container cylinder, the rotating component of the device is started, and under the action of the rotating part of the rotating component, the fluid to be measured generates friction force with the inner surface or the inner wall of the container cylinder, and the friction force acts on the container cylinder in the fluid shearing process to enable the container cylinder to be subjected to the torsional momentFurther, since the bottom surface of the container tube is connected with the torsional rigidity connecting piece, when the container tube is subjected to torsional moment, the torsional rigidity connecting piece can generate torsional deformation to balance the torsional moment with the outside, and further, when the container tube is subjected to torsional moment and generates torsional deformation, the spectral confocal sensor component can detect the torsion angleTorsional moment to which the container tube is subjectedFurther expressed as torsion angleTorsional stiffness of a connection to torsional stiffn