Liquid electromagnetic field driving response speed testing device

Abstract

The invention discloses a liquid electromagnetic field driving response speed testing device, and relates to the technical field of fluid mechanics. Comprising a constant-temperature and constant-humidity box, the leveling assembly is arranged in the constant-temperature and constant-humidity box and can adjust the levelness of the leveling assembly; the testing assembly can be horizontally placed on the leveling assembly, liquid to be tested is added into the testing assembly, and scales arranged in the horizontal direction are arranged on the surface of the testing assembly; the electromagnetic field module is used for applying a set electric field and a set magnetic field to the test assembly. The invention provides a liquid electromagnetic field driving response speed testing device, which can be used for testing the response speed of liquid under the driving of an electromagnetic field.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid mechanics, and in particular to a liquid electromagnetic field driven response speed testing device. Background Art

[0002] The study of liquid behavior in electromagnetic fields has a wide range of applications and significant scientific significance. For example, in the field of microfluidic chips, precise control of liquid flow through electromagnetic fields is required to achieve functions such as biological detection and chemical reactions. In material preparation, electromagnetic-driven liquid flow can be used to synthesize new nanomaterials. In the biomedical field, electromagnetic fields drive liquids such as cell culture fluids, influencing cell growth and the transport of substances. The response speed of liquids to electromagnetic field drive, a key parameter for measuring the dynamic characteristics of liquids in electromagnetic fields, is directly related to the performance and efficiency of related technologies and equipment.

[0003] At present, there are methods for testing the speed of liquid movement under electric field drive and methods for testing the speed of liquid movement under magnetic field drive. For the speed testing methods of droplet movement under electric field drive, there are mainly microscopic imaging combined with high-speed photography, particle image velocimetry, fluorescence labeling, electrical signal detection, laser / ultrasonic Doppler velocimetry and other methods, but they can only test the speed of liquid movement under the action of electric field; for the speed testing methods of liquid movement under magnetic field drive, there are mainly magnetic particle tracing and particle image velocimetry, magnetoresistance effect detection method, magneto-displacement labeling method and the like. However, there is no suitable testing device for testing the electromagnetic field response speed of liquid. Therefore, it is urgent to design a technical solution that can test the response speed of liquid under electromagnetic field drive. Summary of the Invention

[0004] The purpose of the present invention is to provide a liquid electromagnetic field driven response speed testing device to solve the problems existing in the above-mentioned prior art and to be able to perform response speed testing of liquid under electromagnetic field drive.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a liquid electromagnetic field driven response speed test device, comprising: a constant temperature and humidity chamber, wherein a heating device, a thermocouple, and a humidity sensor are provided in the constant temperature and humidity chamber, which can monitor the temperature and humidity values in the constant temperature and humidity chamber in real time and adjust the heating process of the heating device according to the detection results to ensure that the temperature and humidity in the constant temperature and humidity chamber are constant. The heating device can adopt a structure such as a heating plate or a heating wire. In addition, a spray device can be designed in the constant temperature and humidity chamber, such as a nozzle, which is externally connected to a water pump and a water pipe to adjust the humidity in the constant temperature and humidity chamber; a leveling component, which is provided in the constant temperature and humidity chamber and can adjust its own level; a test component, which can be placed horizontally on the leveling component, wherein the test component is used to add the liquid to be tested, and the surface of the test component is provided with a scale arranged in the horizontal direction; and an electromagnetic field module, which is used to apply a set electric field and magnetic field to the test component. At present, there are already methods for testing the liquid movement speed driven by electric fields and methods for testing the liquid movement speed driven by magnetic fields, but there is no method for testing the liquid movement speed driven by the combined action of electromagnetic fields. In this invention, under the combined action of the electric field and the magnetic field, the liquid undergoes directional movement due to the combined action of the electric field force and the magnetic field force. By monitoring this process, the device can obtain the movement speed of the liquid in the electromagnetic field. This speed is the macroscopic movement speed.

[0007] Preferably, the leveling assembly comprises a horizontal platform, a plurality of legs are evenly arranged on the bottom of the horizontal platform, and the heights of the legs are adjustable.

[0008] Preferably, a spirit level is fixedly provided at the center of the horizontal platform.

[0009] Preferably, the test assembly includes a test tube made of a transparent material, the test tube is horizontally arranged on the leveling assembly, and a scale is provided on a side wall of the test tube.

[0010] Preferably, the test tube is a closed annular structure, and a liquid inlet is provided at the top of one side of the test tube.

[0011] Preferably, the test tubes include a first test tube, a second test tube, a third test tube, and a fourth test tube that are connected end to end and integrally formed. The first test tube and the third test tube are symmetrically arranged, and the first test tube and the fourth test tube are symmetrically arranged. The first test tube and the third test tube are both provided with the scale on their side walls. The second test tube or the fourth test tube is provided with a liquid inlet.

[0012] Preferably, the electromagnetic field module includes an electrode bracket, which is arranged on the test component, and the electrode bracket is provided with an electrode and a magnetic component, and the electrode is externally connected to a power supply.

[0013] Preferably, the magnetic component is an electromagnet or a permanent magnet.

[0014] Preferably, the cross section of the test tube is circular or rectangular.

[0015] Preferably, a heating device is provided in the constant temperature and humidity chamber, and a detachable cover is provided on the top of the constant temperature and humidity chamber, and the cover is made of a transparent material.

[0016] The testing principle of the present invention involves placing a liquid in a test tube of limited diameter. An electric field is applied on opposite sides of the test tube, and a magnetic field is applied perpendicular to the electric field. The time it takes for the liquid to move a unit distance in the fixed electric and magnetic fields is recorded, and the liquid's velocity under the electromagnetic field is calculated. To adjust the magnitude and direction of the electric field, a power supply that can adjust the electric field is required. A magnet is then used to provide the magnetic field. The test assembly is placed in a constant temperature and humidity chamber to maintain the test environment temperature and humidity. In use, a horizontal platform is placed in the chamber; a level is used to level the platform by adjusting the height of the legs. The test tube is filled with the test liquid until it reaches half its capacity. The test tube is placed on the horizontal platform, typically allowing the liquid level to rest on the left and right sides of the test tube. The test tube is left to rest for a set period of time until the liquid level is still, and the scale value is recorded. An electromagnetic field is introduced, an electrode holder is placed on one side of the test tube, and a permanent magnet of appropriate strength is selected and placed above the electrode holder. In a constant temperature and humidity environment, the liquid in the circular tube is exposed to known electric and magnetic fields. Within a certain period of time, the liquid will move a certain distance driven by the electromagnetic field. The present invention monitors this process and thus obtains the response speed of the liquid in a specific electromagnetic field. During the experiment, the voltage value of the power supply is adjusted, the movement distance of the liquid surface within a certain period of time is recorded, and the movement speed is calculated.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] The constant temperature and humidity chamber of the present invention can ensure that the temperature and humidity of the test environment are constant, reducing errors in the test process; the leveling component ensures that a horizontal test platform can be provided for the test component, liquid is injected into the horizontally arranged test component, and a set electric field and magnetic field are applied to the test component. The movement distance of the liquid in the test component within the set time is observed, thereby realizing the response speed test of the liquid under electromagnetic field drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. 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 these drawings without paying any creative work.

[0020] Figure 1 A schematic top view of a horizontal platform in one or some embodiments of the present invention;

[0021] Figure 2 A front view of a horizontal platform in one or some embodiments of the present invention;

[0022] Figure 3 A side view of a horizontal platform in one or some embodiments of the present invention;

[0023] Figure 4 A schematic top view of a test assembly in one or some embodiments of the present invention;

[0024] Figure 5 A front view of a test assembly in one or some embodiments of the present invention;

[0025] Figure 6 A front view of an electrode support in one or some embodiments of the present invention;

[0026] Figure 7 A bottom view of an electrode support in one or some embodiments of the present invention;

[0027] Figure 8 A side view of an electrode support in one or some embodiments of the present invention;

[0028] Figure 9 Schematic diagram of a constant temperature and humidity chamber in one or some embodiments of the present invention.

[0029] In the figure: 1-constant temperature and humidity chamber, 2-water platform, 3-support legs, 4-level instrument, 5-test assembly, 501-first test tube, 502-second test tube, 503-third test tube, 504-fourth test tube, 505-liquid inlet, 6-electrode holder, 7-copper electrode sheet. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] The purpose of the present invention is to provide a liquid electromagnetic field driven response speed testing device to solve the problems existing in the above-mentioned prior art and to be able to perform response speed testing of liquid under electromagnetic field drive.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] At present, there are only side-view devices for testing the speed of liquid movement under electric fields and testing devices for the speed of liquid movement under magnetic fields. However, there is a lack of testing devices for the superposition of electric and magnetic fields, which makes it difficult to test the response speed of liquid under electromagnetic field drive. In order to solve this problem, the present invention provides a liquid electromagnetic field driven response speed testing device, such as Figures 1 to 9 As shown, it includes a constant temperature and humidity chamber 1; a leveling component is arranged in the constant temperature and humidity chamber 1, and it can adjust its own levelness; a test component 5 can be placed horizontally on the leveling component, the test component 5 is used to add the liquid to be tested, and the surface of the test component 5 is provided with a scale arranged in the horizontal direction; the electromagnetic field module is used to apply a set electric field and magnetic field to the test component 5. The constant temperature and humidity chamber 1 can ensure that the temperature and humidity of the test environment are constant, reducing errors during the test process; the leveling component ensures that a horizontal test platform can be provided for the test component 5, and the liquid is injected into the horizontally arranged test component 5, and the set electric field and magnetic field are applied to the test component 5. The movement distance of the liquid in the test component 5 within the set time is observed, thereby realizing the response speed test of the liquid under the drive of the electromagnetic field; the movement distance can be directly read through the horizontally arranged scale of the test component 5, which is simple and intuitive, but the movement distance of the liquid is not limited to direct reading using the scale on the test component 5. In another embodiment, a displacement sensor or other existing sensors that can respond to the liquid can be set on the test component 5 to realize the test and recording of the distance the liquid flows in the test component 5 for a set time.

[0034] In addition to the above scheme, the horizontal flow path of the liquid in the test component 5 can also be limited, so that existing sensors are respectively set at the positions at both ends of the path in the test component 5. By applying electric and magnetic fields, the liquid flows horizontally in the test component 5, and the time taken for the liquid to flow from one end of the path of a set length to the other end of the path in the horizontal component can be detected, and the flow speed of the liquid under the electromagnetic field can also be tested.

[0035] In order to make the liquid flow process more intuitive during the test and to accurately and timely record the distance the liquid flows, in one embodiment, the test component 5 uses a test tube made of a transparent material. The test tube is horizontally arranged on the leveling component, and a scale is provided on the side wall of the test tube, so that the flow process and flow speed of the liquid in the transparent tube can be recorded by a camera or other equipment. Of course, the flow process of the liquid in the test tube during the test can also be directly observed by the naked eye, and the liquid flow length can be calculated according to the scale value. When testing the flow speed of the liquid under the action of an electromagnetic field, in order to further reduce the error, the cross-section of the test tube can be made into a standard structure, for example, it can be made into a circular cross-section or a rectangular cross-section. By calculating the cross-sectional area of the test tube, the volume of the liquid flowing in the test tube can be indirectly obtained, and then the flow speed of the set volume of liquid in the test tube can be more accurately calculated.

[0036] In one embodiment, to prevent liquid from flowing out of the test tube, the test tube is designed as a closed annular structure, and a liquid inlet 505 is provided at the top of one side of the test tube. A set amount of liquid is added to the test tube through the liquid inlet 505, and then an electromagnetic field is applied to it to drive the liquid to flow horizontally in the test tube to realize the testing process.

[0037] In order to make the testing process more accurate, in one embodiment, the annular structure of the test tube is further improved. The test tube is designed to include a first test tube 501, a second test tube 502, a third test tube 503, and a fourth test tube 504, which are connected end to end and formed integrally. The first test tube 501, the second test tube 502, the third test tube 503, and the fourth test tube 504 together form a rectangular structure. The first test tube 501 and the third test tube 503 are symmetrically arranged, and the first test tube 501 and the fourth test tube 504 are symmetrically arranged. Scales are provided on the side walls of the first test tube 501 and the third test tube 503. A liquid inlet 505 is provided on the tube 502 or the fourth test tube 504. In a preferred embodiment, two liquid inlets 505 are provided, one located near the end of the first test tube 501 and the other near the end of the third test tube 503. This allows liquid added at the corresponding liquid inlet 505 to smoothly enter the first test tube 501 or the third test tube 503, which has scales. An electromagnetic field module is then provided on the second test tube 502 or the fourth test tube 504 to apply an electric field and a magnetic field. To avoid interference, the electromagnetic field module and the liquid inlet 505 are located on different test tubes, ensuring that the liquid injection process is not interfered with by the electromagnetic field module structure.

[0038] In order to be able to apply accurate electric and magnetic fields, in one embodiment, the electromagnetic field module includes an electrode holder 6. The specific structure of the electrode holder 6 is not limited, as long as it can be fixed on the test tube. In one embodiment, the electrode holder 6 can be designed as a frame structure with an opening on one side, which can be sleeved on the corresponding test tube through the open side to achieve the fixation of the electrode holder 6. The electrode holder 6 is provided with an electrode and a magnetic component. The electrode is externally connected to a power supply. The electrode of this embodiment is a copper electrode sheet 7, which is connected to the power supply. The electric field strength can be set by adjusting the voltage value of the power supply. The magnetic component can be an electromagnet or a permanent magnet. In order to avoid introducing too many power supply structures, the magnetic component in this embodiment uses a permanent magnet. The permanent magnet is fixed to the electrode holder 6. With the energized electrode, the electric field and magnetic field can be applied to the test tube, realizing the liquid flow rate test process under electromagnetic drive.

[0039] In order to ensure that the test tube is always in a completely horizontal state due to the height difference of the test tube during the flow of liquid, it is necessary to ensure that the test tube is always in a completely horizontal state. In order to achieve this function, in one embodiment, the leveling component is designed as a horizontal platform 2. The cross-section of the horizontal platform 2 can be designed as a circle or a uniform rectangle. Then, a plurality of legs 3 are evenly arranged at the bottom of the horizontal platform 2. The height of the legs 3 can be adjusted. By adjusting the height of the corresponding legs 3, the horizontal degree of the horizontal platform 2 can be adjusted. In one embodiment, the legs 3 can be designed to include a suction cup-shaped, sheet-shaped or block-shaped support foot. The upper part of the support foot is fixedly connected to a sleeve. The inner thread of the sleeve is connected to a screw. The top of the screw is connected to the horizontal platform 2. By twisting the sleeve and the screw, the height of the legs 3 can be adjusted. The legs 3 can also be directly designed as a bolt structure. The upper part is connected to the horizontal platform 2 through a nut. By twisting the bolt and the nut, the height of the legs 3 can also be adjusted.

[0040] In order to make the level adjustment process of the horizontal platform 2 more intuitive and the levelness better, in one embodiment, a spirit level 4 is fixedly provided at the center position of the horizontal platform 2. The spirit level 4 can be used to intuitively detect whether the horizontal platform 2 is level. When the horizontal platform 2 is completely level, the test tube can be placed flat on the horizontal platform 2 to achieve a horizontal arrangement of the test component 5.

[0041] In order to reduce the environmental error factors during the experiment, a constant temperature and humidity chamber 1 is designed in this embodiment, which is equipped with a heating device, a thermocouple and a humidity sensor. The temperature and humidity values in the constant temperature and humidity chamber 1 can be monitored in real time, and the heating process of the heating device can be adjusted according to the detection results to ensure that the temperature and humidity in the constant temperature and humidity chamber 1 are kept constant. The heating device can adopt a heating plate or a heating wire and other structures. In addition, a spray device can be designed in the constant temperature and humidity chamber 1, such as a nozzle, which is connected to a water pump and a water pipe to adjust the humidity in the constant temperature and humidity chamber 1. In order to make the temperature in the constant temperature and humidity chamber 1 constant, in one embodiment, an insulation layer can be designed on the side wall of the constant temperature and humidity chamber 1 to ensure that the internal temperature value is constant. In one embodiment, a detachable cover is provided on the top of the constant temperature and humidity chamber 1, and the cover is made of a transparent material. After opening the cover, the test component 5, the leveling component, etc. can be placed in the constant temperature and humidity chamber 1, and then the cover is closed to start the experiment. During the experiment, the liquid flow process can be observed through the transparent cover, and the electromagnetic field drive response performance of the test liquid can be achieved by testing the distance the liquid moves within a certain period of time under the drive of the electromagnetic field.

[0042] The testing principle of the present invention involves placing liquid in a test tube of limited diameter, applying an electric field on opposite sides of the tube, and a magnetic field perpendicular to the electric field. The time it takes for the liquid to travel a unit distance in the fixed electric and magnetic fields is recorded, and the liquid's velocity under the electromagnetic field is calculated. To adjust the magnitude and direction of the electric field, a power supply capable of adjusting the electric field is required. A magnet is then used to provide the magnetic field. The test assembly 5 is housed in a constant temperature and humidity chamber 1 to maintain the test environment temperature and humidity.

[0043] When the present invention is used, a horizontal platform 2 is placed in a constant temperature and humidity chamber 1; a level gauge 4 is observed and the horizontal platform 2 is leveled by adjusting the height of the legs 3; the liquid to be tested is added to the test tube until it reaches half the capacity of the test tube; the test tube is placed on the horizontal platform 2, usually so that the liquid level stays on the left and right sides of the test tube, and is left to stand for 5-10 minutes until the liquid level is still, and the scale value is recorded; an electromagnetic field is introduced, and an electrode holder 6 is placed on one side of the test tube (usually on the opposite side of the addition port), and a permanent magnet of appropriate strength is selected and placed above the electrode holder 6. In a constant temperature and humidity environment, the liquid in the circular tube is under known electric and magnetic fields. Within a certain period of time, the liquid is driven by the electromagnetic field and moves a certain distance. The present invention monitors this process and can then obtain the response speed of the liquid in a specific electromagnetic field; during the experiment, the voltage value of the power supply is adjusted, the distance moved by the liquid level within a certain period of time is recorded, and the moving speed is calculated.

[0044] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A liquid electromagnetic field driven response speed testing device, characterized by: include: Constant temperature and humidity chamber; A leveling component is provided in the constant temperature and humidity chamber and is capable of adjusting its own level; A test assembly capable of being placed horizontally on the leveling assembly, wherein the test assembly is used to add the liquid to be tested, and a scale arranged in the horizontal direction is provided on the surface of the test assembly; The electromagnetic field module is used to apply a set electric field and magnetic field to the test component.

2. The liquid electromagnetic field driven response speed testing device according to claim 1, characterized in that: The leveling assembly comprises a horizontal platform, a plurality of legs are evenly arranged on the bottom of the horizontal platform, and the heights of the legs are adjustable.

3. The liquid electromagnetic field driven response speed testing device according to claim 2, characterized in that: A level is fixedly provided at the center of the horizontal platform.

4. The liquid electromagnetic field driven response speed testing device according to claim 1, characterized in that: The test assembly includes a test tube made of a transparent material. The test tube is horizontally arranged on the leveling assembly, and a scale is provided on the side wall of the test tube.

5. The liquid electromagnetic field driven response speed testing device according to claim 4, characterized in that: The test tube is a closed annular structure, and a liquid inlet is provided on the top of one side of the test tube.

6. The liquid electromagnetic field driven response speed testing device according to claim 4, characterized in that: The test tubes include a first test tube, a second test tube, a third test tube, and a fourth test tube that are connected end to end and integrally formed. The first test tube and the third test tube are symmetrically arranged, and the first test tube and the fourth test tube are symmetrically arranged. The first test tube and the third test tube are both provided with the scale on their side walls. The second test tube or the fourth test tube is provided with a liquid inlet.

7. The liquid electromagnetic field driven response speed testing device according to claim 1, characterized in that: The electromagnetic field module includes an electrode bracket, which is arranged on the test component. The electrode bracket is provided with electrodes and a magnetic component, and the electrodes are externally connected to a power supply.

8. The liquid electromagnetic field driven response speed testing device according to claim 7, characterized in that: The magnetic component is an electromagnet or a permanent magnet.

9. The liquid electromagnetic field driven response speed testing device according to claim 4, characterized in that: The cross section of the test tube is circular or rectangular.

10. The liquid electromagnetic field driven response speed testing device according to claim 1, characterized in that: A heating device is provided in the constant temperature and humidity chamber, and a detachable cover is provided on the top of the constant temperature and humidity chamber, and the cover is made of a transparent material.

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