Electric field device and method for testing fiber filament lift force

Abstract

The invention relates to the technical field of material mechanical property testing, provides an electric field device for testing fiber filament lift force, and is used for solving the key problem that the lift force characteristic of a fiber material in a dynamic electric field environment cannot be accurately measured in the prior art and promoting the application of the electric field device in spaceflight protection, bionic driving and intelligent material design. According to the device, a stable and adjustable electric field environment is provided through a modularized electric field generation system, and an electric field force source necessary for generating lift force is provided for fiber filaments; measuring the electric field intensity in the electric field generation system by arranging the electric field sensing redundancy; the electric field shielding shell isolates external electromagnetic interference and restrains an internal electric field, leakage of the internal electric field is prevented, and meanwhile internal components are protected against influences of dust and sundries. Through collaborative design of the modular electric field generation system, the self-adaptive lifting system and the high-sensitivity sensing technology, accurate simulation and real-time measurement of the typical electric field (0-20 kV / m) of the Mars atmosphere are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of testing the mechanical properties of materials, and particularly relates to a device for directly measuring the lift force of fiber filaments through an electric field environment, which is particularly suitable for the research on the electric field response characteristics of fiber materials in bionic robots and flexible electronic devices. Background Art

[0002] In the fields of flexible drive and intelligent material design, accurately mastering the lift characteristics of fiber materials under the action of an electric field is extremely crucial, which is of great significance for optimizing material performance and expanding applications. Currently, most of the electric field force measurement methods are indirect methods, which have obvious defects: the optical observation method uses a high-speed camera to capture the deformation of the fiber and combines a mechanical model to calculate the lift force, but the error rate is relatively high; the electrostatic equilibrium method indirectly calculates according to the principle of electrostatic force balance, but it cannot simulate a dynamic electric field environment; the cantilever beam sensor fixes the fiber at the end of the cantilever beam and calculates the force value through the bending deformation of the beam. However, the sensitivity is insufficient and it is difficult to detect forces below the micro-Newton level.

[0003] Generally speaking, it is difficult for the existing technology to directly measure the real-time lift force in a dynamic electric field, which limits the development of related technologies. In terms of application expansion, this measurement technology has important value in many fields such as aerospace, materials science, and bionic robots. For example, it provides a test benchmark for the surface charge accumulation protection design of Mars rovers in the aerospace field and the electric field drive scheme of micro bionic aircraft, helps to quantitatively analyze the electric field mechanical response characteristics of flexible piezoelectric materials and electrospun fibers in materials science, and optimizes the bionic drive structure design in bionic robots to simulate the lift force change law of insect wings in a charged environment.

[0004] Therefore, there is an urgent need for a device that can measure the lift characteristics of fiber materials in a dynamic electric field environment. Summary of the Invention

[0005] The purpose of the present invention is to provide an electric field device for testing the lift force of fiber filaments, which is used to solve the key problem that the lift characteristics of fiber materials cannot be accurately measured in a dynamic electric field environment in the existing technology, and promote its application in aerospace protection, bionic drive, and intelligent material design.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] The present invention proposes an electric field device for testing the lift force of fiber filaments, and the electric field device includes an electric field generation system, a tensile force measurement system, an electric field sensor, and an electric field shielding housing;

[0008] The electric field generation system is used to provide a stable and adjustable electric field environment, which is the necessary source of electric field force for the fiber filaments to generate lift force;

[0009] One end of the fiber filament is fixed to the tension measurement system, and the other end is freely suspended in the electric field generating system;

[0010] The electric field sensor is used to measure the electric field strength in the electric field generating system in a redundant arrangement;

[0011] Electric field shielding enclosures are used to isolate external electromagnetic interference and constrain internal electric fields to prevent them from leaking, while protecting internal components from dust and debris.

[0012] Furthermore, the electric field generating system comprises a high voltage power supply and upper and lower electrode plates;

[0013] A distance is set between the upper and lower electrode plates, and the distance is adjustable;

[0014] The upper electrode plate is a honeycomb insulating substrate and has multiple independently controlled columnar conductive cells built in, and the cells extend 0-80 mm in the vertical direction;

[0015] The lower electrode plate is a solid conductive plate and is connected to a high voltage power supply.

[0016] Furthermore, the honeycomb insulating substrate material is an alumina ceramic substrate with a thickness of 3 mm; the distance between the upper and lower electrode plates is 300-600 mm.

[0017] Furthermore, when the applied voltage is 10,000 V, the distance between the upper and lower electrode plates changes from 300 mm to 600 mm, generating a peak electric field of 15,000 to 30,000 V / m.

[0018] Furthermore, the electric field device also includes a lifting system; the lifting system is arranged at the bottom of the lower electrode plate, fixed by the upper electrode plate, and the lifting mode of the lower electrode plate is adjusted to achieve adjustment of the distance between the upper and lower electrode plates.

[0019] Furthermore, the lifting system is driven by a stepper motor with a displacement accuracy of ±0.1 mm.

[0020] Furthermore, the electric field device also includes a distance sensor; the distance sensor is used to collect distance data between the upper and lower electrode plates, and is also used to work in conjunction with a high-voltage power supply to achieve synchronous control of the electric field generating system.

[0021] Furthermore, the tension measurement system is implemented using a micro force sensor.

[0022] The present invention also provides a method for testing the lifting force of a fiber filament, the method being implemented based on an electric field device for testing the lifting force of a fiber filament as described in any one of the above, the method comprising:

[0023] Step S1: fix one end of the electrostatically charged fiber filament to the micro-force sensor, and let the other end hang freely between the electrodes;

[0024] Step S2: When the fiber length > 400 mm, control the lifting system to lower the lower electrode plate to the lowest position;

[0025] Step S3: Apply a high-voltage power supply of 10,000 V and detect the electric field intensity. If the deviation > 5%, automatically adjust the voltage compensation;

[0026] Step S4: The micro-force sensor continuously records the lift value and synchronously saves the time-lift curve, real-time field strength, and plate spacing data;

[0027] Step S5: Control the battery cell to extend 50 mm, shorten the local electrode spacing to 250 mm, correspondingly increase the field strength, and measure the lift difference of the fiber in the conventional area and the enhanced area under the same global field strength.

[0028] The beneficial effects of the present invention are as follows:

[0029] The present invention provides a stable and adjustable electric field environment through the electric field generation system, providing the necessary electric field force source for the fiber filaments to generate lift. Among them, the electric field generation system includes a high-voltage power supply and upper and lower electrode plates; by adjusting the spacing between the upper and lower electrode plates, a peak electric field of 15,000 - 30,000 V / m can be generated, meeting the electric field range of up to about 20,000 V / m in the Mars atmosphere.

[0030] Further, a plurality of honeycomb-shaped holes are opened in the middle of the upper electrode plate for inserting a plurality of independently controlled columnar conductive battery cells, and the battery cells can extend 0 - 80 mm in the vertical direction. Since each battery cell can extend independently from the upper electrode plate, a locally enhanced non-uniform electric field is created. By extending the local electrode 50 mm, the electric field intensity in the target area is increased by more than 60%, verifying that the distributed electrode scheme can achieve the excitation of a locally enhanced electric field.

[0031] Further, the present invention adjusts the spacing between the upper and lower electrode plates through the lifting system and combines it with the independent control of the battery cells in the upper electrode plate to achieve two-dimensional degree-of-freedom adjustment of the electrode spacing and field strength control, thereby realizing the dynamic adjustment of the electric field.

[0032] Further, the present invention designs the thickness of the upper electrode plate made of ceramic substrate material to be 3 mm, combines it with a honeycomb-shaped isolation structure to avoid the risk of high-voltage breakdown between adjacent battery cells; at the same time, combines it with an electric field shielding housing made of an aluminum shell to form a double insulation barrier, and the measured breakdown risk can be reduced to < 10^-6 times / hour.

[0033] The present invention fills the technical gap in the field of dynamic electric field micro-force detection by integrating the high-precision reproduction of the electric field environment and the direct measurement technology of lift, and has both scientific exploration and engineering application values.

[0034] The present invention is applicable to the mechanical property testing of fiber materials in bionic robots and flexible electronic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 FIG. is a schematic structural diagram of an electric field device for testing the lift force of fiber filaments proposed by the present invention;

[0037] Figure 2 FIG. is a schematic structural diagram of the upper electrode plate described in the present invention;

[0038] Figure 3 FIG. is a schematic diagram of the electric field simulation of the upper and lower electrode plates described in the present invention;

[0039] Figure 4 FIG. is a schematic diagram of the extension of the battery cell described in the present invention;

[0040] Figure 5 FIG. is a simulation diagram of a locally enhanced non-uniform electric field described in the present invention;

[0041] Figure 6 FIG. is a schematic cross-sectional view of the battery cell described in the present invention;

[0042] Figure 7 FIG. is an electrical schematic diagram of the electric field measurement module described in the present invention;

[0043] Figure 8 FIG. is a shielding effect diagram of the electric field shielding housing described in the present invention.

[0044] Among them, 1 represents the upper electrode plate, 2 represents the electric field shielding housing, 3 represents the charged fiber filament, 4 represents the micro-force sensor, 5 represents the lower electrode plate, 6 represents the lifting system, 7 represents the distance sensor, 8 represents the electric field sensor, and 9 represents the columnar conductive battery cell. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0045] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0046] It should be understood that, as used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or their groups.

[0047] The following further elaborates on the specific embodiments of the present invention in conjunction with the accompanying drawings. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several changes and improvements can still be made, and these all fall within the protection scope of the present invention.

[0048] Embodiment 1. This embodiment proposes an electric field device for testing the lift of fiber filaments with high precision and multi-scene compatibility, which is designed specifically to solve the problem of directly measuring micro-newton-level lift in a dynamic electric field environment. The device includes an electric field generation system, a tensile force measurement system, an electric field sensor, and an electric field shielding housing;

[0049] The electric field generation system is used to provide a stable and adjustable electric field environment, serving as the source of the electric field force necessary for the fiber filaments to generate lift;

[0050] One end of the fiber filament is fixed to the tensile force measurement system, and the other end hangs freely inside the electric field generation system;

[0051] The electric field sensor is used to measure the electric field strength inside the electric field generation system through a redundant arrangement method;

[0052] The electric field shielding housing is used to isolate external electromagnetic interference and confine the internal electric field to prevent its leakage, while protecting the internal components from dust and debris.

[0053] This embodiment analyzes the typical intensity of the Martian atmospheric electric field, specifically: under normal circumstances, it is usually lower than 1,000 V / m. In a sandstorm environment, it can reach 20,000 V / m, but large-scale lightning cannot be formed. Therefore, the working range of the electric field generation system designed in this embodiment is 0 - 20 kV / m, and this range meets the Martian atmospheric electric field conditions.

[0054] The electric field device designed in this embodiment realizes the precise simulation and real-time measurement of the typical electric field of Mars (0 - 20 kV / m) through the collaborative design of a modular electric field generation system, an adaptive lifting module, and high-sensitivity sensing technology, and at the same time supports the dynamic regulation of local non-uniform electric fields, providing an innovative experimental platform for the material performance testing of bionic robots and flexible electronic devices.

[0055] Embodiment 2. Refer to Figures 1 to 8This embodiment will specifically describe an electric field device for testing the lift force of fiber filaments proposed in the above-mentioned Embodiment 1;

[0056] As Figure 1 shown, the electric field generation system includes a high-voltage power supply and upper and lower electrode plates; there is a distance between the upper and lower electrode plates, and the distance is adjustable; the upper electrode plate 1 is a honeycomb-shaped insulating substrate, and multiple independently controlled columnar conductive battery cores 9 are built in, and the battery cores extend 0 - 80 mm in the vertical direction; the lower electrode plate 5 is a solid conductive plate and is connected to the high-voltage power supply.

[0057] The electric field generation system designed in the above-mentioned embodiment, its main function is to generate a stable and adjustable electric field environment inside the device, providing the necessary electric field force source for the fiber filament 3 to generate lift force. By changing parameters such as the power supply output voltage and the electrode spacing, the characteristics of the electric field such as intensity and direction can be flexibly controlled, and then the influence of different electric field conditions on the lift force of the fiber filament can be studied. In actual application, the upper and lower electrode plates can be arranged at appropriate spatial positions according to experimental requirements to form a specific electric field distribution pattern. Among them, multiple honeycomb-shaped holes are opened in the middle of the upper electrode plate 1 for inserting multiple independently controlled columnar conductive battery cores 9, as Figure 2 shown. The material of the lower electrode plate 5 is a solid copper plate, which is a solid conductive plate. The adjustable range of the distance between the upper and lower electrode plates is (300 - 600 mm). When the applied voltage is 10000 V and the distance between the two electrode plates changes from 300 mm to 600 mm, through electric field simulation, as Figure 3 shown, it can be seen that a peak electric field of 15000 - 30000 V / m can be generated, meeting the electric field range of up to about 20000 V / m in the Martian atmosphere.

[0058] Furthermore, the above-mentioned battery core 9 can extend 0 - 80 mm in the vertical direction. Since each battery core 9 can independently extend from the upper electrode plate, as Figure 4 shown, a locally enhanced non-uniform electric field is created. By extending the local electrode by 50 mm, the electric field intensity in the target area is increased by more than 60%. Through the Figure 5 shown simulation diagram of the locally enhanced non-uniform electric field, it is verified that the distributed electrode scheme can achieve the excitation of a locally enhanced electric field.

[0059] Furthermore, the overall shape of the above-mentioned battery core 9 is a regular hexagon with a cross-sectional height of 10 mm and a length of 100 mm, and the material is pure copper material, as Figure 6 shown.

[0060] Further, the material of the upper electrode plate 1 is an alumina ceramic plate with good insulation characteristics, which serves as the first insulating layer to isolate adjacent battery cells. The thickness of the ceramic plate between the battery cells is 3 mm, which can effectively prevent the influence of independent power supply of the electrodes on each other and prevent breakdown.

[0061] Further, the output range of the high-voltage power supply is 0 - 20 kV, which is connected to the lower electrode plate. The high-voltage power supply can provide adjustable high-voltage output.

[0062] In this embodiment, by designing the thickness of the ceramic substrate to be 3 mm and combining it with the honeycomb isolation structure, the risk of high-voltage breakdown of adjacent battery cells is avoided, and the anti-interference and stability design of the upper electrode plate is realized.

[0063] As Figure 1 shown, the tensile force measurement system is realized by using the micro-force sensor 4. The MEMS micro-force sensor 4 is fixed inside the upper electrode plate and directly contacts the fiber filament sample 3. In actual application, one end of the charged fiber filament 3 is fixed to the micro-force sensor 4, and the other end freely hangs between the upper and lower electrode plates.

[0064] Further, the range of the MEMS micro-force sensor is 0 - 10 N, and the minimum scale value is 0.1 μN. It can directly capture the lift force at the μN level, and the accuracy is improved by two orders of magnitude compared with the traditional optical measurement method.

[0065] As Figure 1 shown, the distance sensor 7 is arranged on the lower electrode plate 5 to collect the distance data between the upper and lower electrode plates.

[0066] As Figure 1 shown, the electric field sensor 8 measures the electric field intensity in the electric field generation system through a redundant layout method, which is used to detect whether the electric field intensity reaches the preset value. The principle of the electric field sensor is as Figure 7 shown.

[0067] In this embodiment, by symmetrically arranging two pairs of electric field sensors 8 (with an error of ±1%) on the left and right, the electric field distribution data is fed back in real time, so as to realize the dual-channel verification of the electric field intensity. When the deviation between the two-channel data > 5%, the power supply is automatically cut off to prevent the risk of partial discharge.

[0068] As Figure 1 shown, the electric field shielding housing 2 is used to isolate external electromagnetic interference and confine the internal electric field to prevent its leakage, and at the same time protect the internal components from the influence of dust and debris.

[0069] Further, the material of the electric field shielding housing 2 is an aluminum plate with a thickness of 3 mm; the electric field shielding housing 2 has the following functions: operator protection: the shielding layer confines the internal high-voltage electric field within the cavity, ensuring that the electric field strength in the operation area is lower than the safety upper limit. Anti-breakdown redundancy: the housing and the internal ceramic substrate (aluminum oxide) form a double insulation barrier, reducing the risk of high-voltage breakdown. Prevent the internal high-voltage electric field of the device from radiating outward and avoid interfering with surrounding precision instruments. The shielding effect is as Figure 8 shown.

[0070] In this embodiment, by designing the thickness of the upper electrode plate of the ceramic substrate material to be 3 mm and combining with the honeycomb isolation structure, the risk of high-voltage breakdown between adjacent battery cells is avoided; at the same time, combined with the electric field shielding housing of the aluminum shell to form a double insulation barrier, the measured breakdown risk can be reduced to <10^-6 times / hour. Ceramic-metal composite barrier: the alumina ceramic substrate (dielectric strength 30 kV / mm) and the aluminum shell (grounded) form a double insulation layer, and it can be measured that it can work continuously for 100 hours without breakdown under a field strength of 50 kV / m.

[0071] Embodiment 3. Refer to Figure 1 To illustrate this embodiment, this embodiment is to add a lifting system 6 to an electric field device for testing the lift of fiber filaments described in the above Embodiment 2;

[0072] As Figure 1 shown, the lifting system 6 is arranged at the bottom 5 of the lower electrode plate and is fixed by the upper electrode plate 1, and the distance between the upper and lower electrode plates is adjusted by adjusting the lifting mode of the lower electrode plate 5.

[0073] In actual application, the lifting system is driven by a stepper motor with a displacement accuracy of ±0.1 mm. The adjustable range of the distance between the upper and lower electrode plates is 300 - 600 mm, and it supports fiber tests of 50 - 600 mm (such as simulating insect wing cilia of 50 - 100 mm and bionic flapping wing fibers of 300 - 500 mm).

[0074] Embodiment 4. A test method implemented based on an electric field device for testing the lift of fiber filaments proposed in the above embodiment, and the test method is as follows:

[0075] Step S1: Fix one end of the charged fiber filament to the micro-force sensor, and the other end freely hangs between the electrodes;

[0076] Step S2: When the fiber length > 400 mm, control the lifting system to lower the lower electrode plate to the lowest position;

[0077] Step S3: Apply a high-voltage power supply of 10000 V and detect the electric field strength. If the deviation > 5%, automatically adjust the voltage compensation;

[0078] Step S4: The micro-force sensor continuously records the lift value and synchronously saves the time-lift curve, real-time field strength, and plate spacing data.

[0079] Step S5: Control the battery cell to extend 50 mm, so that the local electrode spacing is shortened to 250 mm, corresponding to an increase in the field strength. Under the same global field strength, measure the lift difference of the fiber in the conventional area and the enhanced area.

[0080] In actual application, this embodiment is specifically as follows:

[0081] Basic measurement process:

[0082] Fix one end of the electrostatically charged fiber filament to the micro-force sensor, and the other end freely hangs between the electrodes.

[0083] Furthermore, when the fiber length > 400 mm, control the lifting system to lower the lower electrode plate to the lowest position (spacing 600 mm).

[0084] Furthermore, electric field loading: Adjust the electrode spacing to 300 mm and apply a high-voltage power supply (10,000 V).

[0085] Furthermore, if the detected field strength deviation > 5%, automatically adjust the voltage compensation.

[0086] Furthermore, the micro-force sensor continuously records the lift value and synchronously saves the time-lift curve, real-time field strength, and plate spacing data. Sample installation: Fix one end of the fiber filament (which is charged itself) to the micro-force sensor respectively and put them into the device together.

[0087] Furthermore, adjust the lifting system to adapt to the working conditions under different lengths of fiber filaments, and measure the plate spacing through the distance sensor.

[0088] Local electric field enhancement test:

[0089] Select a suitable distance for the specific cylindrical battery cell on the upper electrode plate in the control interface.

[0090] Furthermore, control the selected battery cell to extend 50 mm, so that the local electrode spacing is shortened to 250 mm, corresponding to an increase in the field strength.

[0091] Furthermore, under the same global field strength, measure the lift difference of the fiber in the conventional area and the enhanced area.

[0092] The present invention provides a stable and adjustable electric field environment through an electric field generating system, providing a source of electric field force necessary for generating lift force for fiber filaments. Among them, the electric field generating system includes a high-voltage power supply and upper and lower electrode plates; by adjusting the distance between the upper and lower electrode plates, a peak electric field of 15,000 - 30,000 V / m can be generated, meeting the electric field range of up to about 20,000 V / m in the Mars atmosphere electric field. At the same time, multiple honeycomb-shaped holes are opened in the middle of the upper electrode plate for inserting multiple independently controlled columnar conductive battery cores, and the battery cores can extend 0 - 80 mm vertically. Since each battery core can extend independently from the upper electrode plate, a locally enhanced non-uniform electric field is created. By extending the local electrode by 50 mm, the electric field intensity in the target area is increased by more than 60%, verifying that the distributed electrode scheme can achieve the excitation of a locally enhanced electric field.

[0093] Furthermore, the present invention adjusts the distance between the upper and lower electrode plates through a lifting system, and at the same time combines the control of the independent battery cores in the upper electrode plate to achieve two-dimensional freedom adjustment of the electrode distance and field intensity control.

[0094] In summary, the present invention discloses a fiber filament lift force test electric field device with high precision and multi-scenario compatibility, which is designed specifically to solve the problem of direct measurement of micro-Newton level lift force in a dynamic electric field environment. Through the collaborative design of a modular electric field generating system, an adaptive lifting module, and high-sensitivity sensing technology, the device realizes the accurate simulation and real-time measurement of the typical electric field (0 - 20 kV / m) in the Mars atmosphere, and at the same time supports the dynamic regulation of the local non-uniform electric field, providing an innovative experimental platform for the material performance testing of bionic robots and flexible electronic devices.

[0095] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0096] The above is only the embodiment of the present invention and does not limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. An electric field device for testing the lifting force of fiber filaments, characterized in that: It includes an electric field generating system, a tension measuring system, an electric field sensor and an electric field shielding shell; The electric field generating system is used to provide a stable and adjustable electric field environment, providing the fiber filaments with the electric field force source necessary for generating lift; One end of the fiber filament is fixed to the tension measurement system, and the other end is freely suspended in the electric field generation system; The electric field sensor is used to measure the electric field strength in the electric field generating system in a redundant arrangement; Electric field shielding enclosures are used to isolate external electromagnetic interference and constrain internal electric fields to prevent them from leaking, while protecting internal components from dust and debris.

2. The electric field device for testing the lifting force of fiber filaments according to claim 1, characterized in that: The electric field generating system includes a high voltage power supply and upper and lower electrode plates; A distance is set between the upper and lower electrode plates, and the distance is adjustable; The upper electrode plate is a honeycomb insulating substrate and has multiple independently controlled columnar conductive cells built in, and the cells extend 0-80 mm in the vertical direction; The lower electrode plate is a solid conductive plate and is connected to a high voltage power supply.

3. The electric field device for testing the lifting force of fiber filaments according to claim 2, characterized in that: The material of the honeycomb insulating substrate is an alumina ceramic substrate, and the thickness is 3 mm; The distance between the upper and lower electrode plates is 300-600mm.

4. The electric field device for testing the lifting force of fiber filaments according to claim 3, characterized in that: When the applied voltage is 10000V, the distance between the upper and lower electrode plates is 300mm to 600mm, generating a peak electric field of 15000 to 30000V / m.

5. The electric field device for testing the lifting force of fiber filaments according to claim 2, characterized in that: The cross section of the conductive core is a regular hexagon, the diameter of the regular hexagon is 10 mm, and the length of the conductive core is 100 mm.

6. The electric field device for testing the lifting force of fiber filaments according to claim 2, characterized in that: It also includes a lifting system; The lifting system is arranged at the bottom of the lower electrode plate, fixed by the upper electrode plate, and the lifting mode of the lower electrode plate is adjusted to realize the adjustment of the distance between the upper and lower electrode plates.

7. The electric field device for testing the lifting force of fiber filaments according to claim 6, characterized in that: The lifting system is driven by a stepper motor with a displacement accuracy of ±0.1mm.

8. The electric field device for testing the lifting force of fiber filaments according to claim 2, characterized in that: Also includes distance sensors; The distance sensor is used to collect the distance data between the upper and lower electrode plates, and is also used to link with the high-voltage power supply to realize synchronous control of the electric field generating system.

9. The electric field device for testing the lifting force of fiber filaments according to claim 1, characterized in that: The tension measurement system is implemented using a micro force sensor.

10. A testing method implemented by an electric field device for testing the lifting force of fiber filaments according to any one of claims 1 to 9, characterized in that: The method is: S1: One end of the electrostatically charged fiber filament is fixed to the micro-force sensor, and the other end is freely suspended between the electrodes; S2: When the fiber length is greater than 400 mm, the lifting system is controlled to lower the lower electrode plate to the lowest position; S3: Apply 10000V high voltage power supply and detect the electric field strength. If the deviation is greater than 5%, automatically adjust the voltage compensation; S4: The micro-force sensor continuously records the lift value and simultaneously saves the time-lift curve, real-time field strength, and plate spacing data; S5: The battery cell is controlled to extend 50 mm, so that the local electrode spacing is shortened to 250 mm. The corresponding field strength is increased. Under the same global field strength, the lift difference of the fiber in the conventional area and the enhanced area is measured.

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