Flexible sensor magnetic field coupling clamping device

Abstract

The utility model discloses a magnetic field coupling clamping device for a flexible sensor. The device comprises a support base provided with a sliding rail at the top, movable sliding blocks located at the two ends of the support base and a C-shaped magnetic field base located at the concave position of the middle of the support base. The movable sliding block is provided with a fastening clamping groove, and the flexible sensor is fixed in a magnetic field generated by the C-shaped magnetic field base. According to the characteristics of the flexible sensor, strain is applied in the horizontal direction, a magnetic field is applied in the vertical direction, and the performance of the flexible sensor is further improved through the synergistic effect of the orthogonally applied strain and the magnetic field; the device is simple in structure, convenient to install and good in universality, and the working efficiency of the flexible sensor is greatly improved.

Description

Technical Field

[0001] The utility model relates to a clamping device, in particular to a flexible sensor magnetic field coupling clamping device, belonging to the technical field of electrochemical sensor testing. Background Technique

[0002] When the traditional method is applied in the field of environmental detection, it has congenital deficiencies in terms of equipment, cost, measurement cycle, sensitivity, etc. Therefore, the traditional method is greatly limited in this field. Therefore, people have to look for various methods to replace and develop traditional chemical and physical measurement means. Electrochemical sensors have received great attention due to their traditional advantages in high sensitivity, short measurement cycle, high reliability, etc. For decades, they have become a research hotspot in the field of environmental detection and have been widely used. Currently, the commonly used methods for detecting heavy metal ions include atomic emission spectrometry (AES), atomic absorption spectrometry (AAS), inductively coupled plasma-mass spectrometry (ICP-MS), etc. However, due to reasons such as complex operation, expensive instruments, and inconvenient carrying, it is difficult to achieve on-site monitoring. As an analytical means, electroanalytical chemistry closely combines chemical changes and electrical phenomena. It applies the basic principles and experimental techniques of electrochemistry to study the composition of substances and has a variety of methods for analyzing and testing the component content of substances. It is widely used, with rapid technological changes, and continuous in-depth, improvement, and progress in theory. In scientific research and practical applications, electrochemistry methods are not only an analytical method but also a necessary tool for research. The electrochemical sensors used have simple instruments, are convenient for online automation with a computer, and are a recognized fast, sensitive, and accurate micro and trace analysis method. Usually, a sample can be measured in just a few minutes, and the data is automatically saved, enabling on-site online detection in a complex environment. The concentration of metal ions can be measured as low as 10-12 μmol / L. Therefore, developing a new type of heavy metal detection instrument based on the principle of electrochemical testing to achieve rapid, sensitive, and accurate on-site online detection of multiple heavy metal ions including lead, cadmium, and copper in complex water bodies has become an urgent problem to be solved in the market. Content of the Utility Model

[0003] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a flexible sensor magnetic field coupling clamping device. This device is aimed at the characteristics of flexible sensors, applies strain in the horizontal direction and magnetic field in the vertical direction, and utilizes the synergistic effect of the orthogonally applied strain and magnetic field to further improve the detection limit and detection range of flexible sensors; the device has a simple structure, is convenient to install, has good versatility, and greatly improves the working efficiency of flexible sensors.

[0004] To achieve the above technical effects, the present utility model provides a flexible sensor magnetic field coupling clamping device, which is characterized in that: it includes a bracket base (1) with a slide rail at the top, movable sliders (2) located at both ends of the bracket base, and a C-shaped magnetic base (4) located in the middle recess of the bracket base; a fastening slot (3) is provided on the movable slider to fix the flexible sensor in the magnetic field generated by the C-shaped magnetic base.

[0005] As a preferred solution, the slide rail on the top of the bracket base is a linear slide rail, and scale values are provided on the slide rail.

[0006] As a preferred solution, the movable slider is fixed to the bracket base through an adjustable bolt.

[0007] As a preferred solution, replaceable N and S pole bar magnets are provided above and below the C-shaped magnetic base.

[0008] As a preferred solution, the fastening slot is fixed to the top of the movable slider through a bolt.

[0009] As a preferred solution, the C-shaped magnetic base can slide along the middle recess of the bracket base to apply all or part of the magnetic field to the flexible sensor.

[0010] Under the conditions of strain action and magnetic field action, the flexible sensor can further greatly improve the detection limit and detection range of the flexible sensor. In the prior art, different devices are used for applying strain and introducing magnetic field in the sensor clamping device, and it is difficult to combine them to act on the sensor surface simultaneously. However, the present utility model aims at the characteristics of the flexible sensor, applies strain in its horizontal direction and magnetic field in the vertical direction, and utilizes the synergistic effect of the orthogonally applied strain and magnetic field to further improve the detection limit and detection range of the flexible sensor. Moreover, the clamping device can adjust the strain applied to the flexible sensor by adjusting the movable slider, and adjust the magnetic field intensity applied to the flexible sensor by replacing the N and S bar magnets on the C-shaped magnetic base, thereby simultaneously realizing the strain strengthening and magnetic field strengthening of the flexible sensor.

[0011] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0012] The structure of the present utility model is simple and easy to install. It adopts an adjustable fixed panel that can be horizontally moved. By adjusting the position of the adjustable fixed panel, the angle of the sensor device can be changed to introduce a magnetic field, which has better versatility, reduces the test cost, and greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the clamping device provided by the present invention;

[0014] Among them, 1 - bracket base, 2 - movable slider, 3 - fastening slot, 4 - C-shaped magnetic field base, 5 - adjustable bolt;

[0015] Figure 2 Schematic diagram of the C-shaped magnetic field base of the clamping device provided by the present invention

[0016] Among them, 4-1 and 4-2 are replaceable N and S pole bar magnets;

[0017] Figure 3 Schematic diagram of the clamping device provided in Embodiment 1 of the present invention when no stress is applied to the flexible sensor;

[0018] Figure 4 Schematic diagram of the clamping device provided in Embodiment 1 of the present invention when stress is applied to the flexible sensor;

[0019] Figure 5 SWV test results of iron ions with magnetic moment after the flexible sensor is directly connected to the electrochemical workstation without using this clamping device;

[0020] Figure 6 Fitting results of the SWV test of iron ions with magnetic moment after the flexible sensor is directly connected to the electrochemical workstation without using this clamping device;

[0021] Figure 7 SWV test results of iron ions with magnetic moment after the flexible sensor is connected to the electrochemical workstation after applying a magnetic field and strain using this clamping device;

[0022] Figure 8 Fitting results of the SWV test of iron ions with magnetic moment after the flexible sensor is connected to the electrochemical workstation after applying a magnetic field and strain using this clamping device. Specific implementation manner

[0023] The following will describe the present utility model in detail with reference to embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. Without departing from the spirit and essence of the present utility model, any modification or replacement made to the method, steps or conditions of the present invention belongs to the scope of the present utility model.

[0024] Embodiment 1

[0025] This embodiment provides a flexible sensor magnetic field coupling clamping device, including a bracket base 1 with a slide rail at the top, movable sliders 2 located at both ends of the bracket base, and a C-shaped magnetic field base 4 located in the middle depression of the bracket base; a fastening slot 3 is provided on the movable slider to fix the flexible sensor in the magnetic field generated by the C-shaped magnetic field base.

[0026] The slide rail on the top of the bracket base is a linear slide rail, and a scale value is provided on the slide rail. The strain borne by the flexible sensor can be judged according to the scale value. The movable slider is fixed to the bracket base through an adjustable bolt. When moving the slider, loosen the adjusting bolt, and when fixing the slider, tighten it. The C-shaped magnetic field base is provided with replaceable N and S pole bar magnets up and down, and an appropriate magnetic field intensity can be applied according to the requirements of the flexible sensor during the test. The fastening slot is fixed to the top of the movable slider through a bolt. After the flexible sensor is clamped in the fastening slot, the height of the flexible sensor can be adjusted through the fastening slot to prevent the highest point of the flexible sensor from directly contacting the magnet of the C-shaped magnetic field base during the deformation process. The C-shaped magnetic field base can slide along the depression in the middle of the bracket base, and the magnetic field can be applied to all or part of the flexible sensor according to the requirements of the flexible sensor.

[0027] To better illustrate the advantages of the device provided by the present invention, in this embodiment, the detection performance of the flexible sensor with and without the above device is also tested, and the results are shown in Table 1:

[0028] Table 1

[0029]

[0030] It can be seen from Table 1 that after the flexible sensor adopts the clamping device provided by the present invention, a coupling strengthening effect of the magnetic field and strain in the orthogonal direction is generated. Through the test of the electrochemical workstation, it can be known that compared with the sensor without the device provided by the present invention, its detection limit is reduced by 83%, the linear range is expanded, the performance of the sensor is improved without changing the material properties, and the whole process is reversible and has the versatility of flexible devices.

Claims

1. A flexible sensor magnetic field coupling clamping device, characterized in that: The invention comprises a support base (1) with a slide rail on the top, movable sliders (2) located at both ends of the support base, and a C-shaped magnetic field base (4) located in a recessed position in the middle of the support base; a fastening slot (3) is provided on the movable slider to fix the flexible sensor in the magnetic field generated by the C-shaped magnetic field base.

2. A flexible sensor magnetic field coupling clamping device according to claim 1, characterized in that: The slide rail on the top of the bracket base is a linear slide rail, and a scale value is arranged on the slide rail.

3. The flexible sensor magnetic field coupling clamping device according to claim 1, characterized in that: The movable sliding block is fixed on the bracket base through an adjustable bolt.

4. The flexible sensor magnetic field coupling clamping device according to claim 1, characterized in that: The C-shaped magnetic field base is provided with replaceable N-pole and S-pole bar magnets at the top and bottom.

5. The flexible sensor magnetic field coupling clamping device according to claim 1, characterized in that: The fastening slot is fixed to the top of the movable sliding block by bolts.

6. The flexible sensor magnetic field coupling clamping device according to claim 1, characterized in that: The C-shaped magnetic field base can slide along the depression in the middle of the support base to apply all or part of the magnetic field to the flexible sensor.

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