Measuring electrode and wearable device

Abstract

The invention discloses a measuring electrode and wearable equipment. The measuring electrode includes a bottom layer, an electrode layer, and a pad. The bottom layer and the electrode layer are stacked. The liner is arranged between the bottom layer and the electrode layer, the area of the electrode layer and the bottom layer is larger than that of the liner, and the liner is wrapped by the bottom layer and the electrode layer. By means of the mode, the measuring electrode can be better attached to the skin, and the problem of motion artifacts is solved.

Description

Measuring electrodes and wearable devices

Technical field

[0001] The present application relates to the technical field of wearable devices, and in particular to measuring electrodes and wearable devices. [Background Technology]

[0002] With the improvement of people's living standards and the growing emphasis on exercise, monitoring physiological signals has become an indispensable and important means of health monitoring. With the help of wearable physiological signal monitoring devices, people can monitor their physical condition anytime and anywhere. Detecting physiological signals typically requires sensors such as measurement electrodes. In related technologies, the measurement electrodes have poor adhesion to the skin, resulting in motion artifacts and other problems.

[0003] [Summary of the invention]

[0004] The embodiments of the present application provide measuring electrodes and wearable devices, which can make the measuring electrodes fit better with the skin, thereby improving the technical problem of motion artifacts generated during the measurement process.

[0005] In a first aspect, embodiments of the present application provide a measuring electrode. The measuring electrode includes a base layer, an electrode layer, and a pad. The pad is disposed between the base layer and the electrode layer, wherein the areas of the electrode layer and the base layer are larger than the areas of the pad, and the base layer and the electrode layer enclose the pad.

[0006] Optionally, the gasket includes a first main surface and a second main surface disposed opposite to each other, and a side peripheral surface connecting the first main surface and the second main surface;

[0007] The electrode layer includes a first coating region, a second coating region and an adhesive region;

[0008] The first covering area covers the first main surface, and the second covering area covers the side peripheral surface; the bottom layer covers the second main surface, and the adhesive area is in contact with the bottom layer.

[0009] Optionally, in a direction away from the bottom layer, the electrode layer includes a waterproof membrane, a conductive fabric and a conductive coating layer stacked in sequence.

[0010] Optionally, the hardness of the conductive coating is between 0 and 50 degrees on the Shore A scale; the thickness of the conductive coating is 0.01 mm to 0.5 mm; and the thickness of the conductive fabric is 0.05 mm to 1 mm.

[0011] Optionally, the conductive coating is made of any one of conductive resin, conductive silicone, conductive thermoplastic polyurethane or conductive silver paste, or a combination of several of them.

[0012] Optionally, the conductive resin includes epoxy resin, conductive filler, silane coupling agent, curing agent and accelerator;

[0013] Conductive silicone includes silicone, conductive filler, silane coupling agent, curing agent and accelerator;

[0014] The conductive thermoplastic polyurethane comprises thermoplastic polyurethane and conductive filler;

[0015] Conductive silver paste includes epoxy resin, silver nanoparticles, curing agent and accelerator.

[0016] Optionally, the conductive filler includes any one of conductive carbon black, conductive graphene or conductive carbon nanotubes, or a combination of several of them.

[0017] Optionally, the conductive coating is applied to the portion of the conductive fabric covering the pad.

[0018] Optionally, the conductive fabric is any one of conductive silver fabric, nickel-copper conductive fabric, copper conductive fabric and stainless steel conductive fabric.

[0019] Optionally, the waterproof membrane has a thickness of 10 μm-200 μm.

[0020] Optionally, the waterproof membrane is bonded to the conductive fabric through a hot pressing process, and no adhesive is provided between the waterproof membrane and the conductive fabric.

[0021] Optionally, the measuring electrode further includes a wiring terminal, which is provided at a portion of the electrode layer not covered with the liner.

[0022] Optionally, the terminal is provided on a portion of the conductive fabric not covered with the pad, the portion of the conductive fabric not covered with the pad is not provided with a conductive coating, the terminal includes a wire and a composite layer, and the wire is provided between the composite layer and the conductive fabric.

[0023] Optionally, the wire includes a bonding portion and a lead-out portion, the bonding portion is bonded to the electrode layer and arranged in a serpentine shape, and the lead-out portion is connected to the bonding portion and extends to the outside of the electrode layer.

[0024] Optionally, the composite layer includes a conductive wire layer and a thermoplastic polyurethane layer, and the conductive wire layer faces the conductive wire.

[0025] Optionally, the conductive wire layer is formed by any one or a combination of conductive yarn, conductive metal wire and conductive carbon fiber; wherein the diameter of the conductive yarn is 10-500 denier, the conductive metal wire is 10μm-100μm, or the diameter of the conductive carbon fiber is 10μm-100μm.

[0026] Optionally, the liner is formed of any one or a combination of room temperature vulcanized silicone rubber, space cotton, and foam.

[0027] Optionally, the thickness of the liner is 0.1 mm to 10 mm, and the hardness of the liner is between 0 degrees of the Shore 00 standard and 90 degrees of the Shore A standard.

[0028] In a second aspect, embodiments of the present application provide a wearable device comprising the aforementioned measuring electrodes.

[0029] The beneficial effect of this application is that, unlike the prior art, by providing a pad thicker than the electrode layer between the electrode layer and the base layer, the measuring electrode can have sufficient deformation margin in the thickness direction during contact with the skin, thereby allowing the measuring electrode to better adhere to the skin. Improving the adherence of the measuring electrode to the skin in this manner can alleviate the technical problem of motion artifacts generated during measurement.

Brief Description of the Drawings

[0030] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the description, serve to explain the principles of the present application. In addition, these drawings and the description are not intended to limit the scope of the concept of the present application in any way, but rather to illustrate the concept of the present application for those skilled in the art by reference to specific embodiments.

[0031] FIG1 is a schematic diagram of an embodiment of a measuring electrode of the present application;

[0032] FIG2 is a schematic cross-sectional view of the measuring electrode shown in FIG1 ;

[0033] FIG3 is a schematic diagram of a portion of the structure of the electrode layer in the measuring electrode shown in FIG2 ;

[0034] FIG4 is a schematic structural diagram of the measuring electrode mounting terminal shown in FIG1 . [Specific implementation method]

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] An embodiment of the present application provides a wearable device. The wearable device may be, for example, a smart bracelet, a smart watch, a smart belt, smart glasses, or smart clothing. The wearable device may detect the wearer's exercise, sleep, and daily activities, thereby monitoring the wearer's physical condition. The wearable device may monitor the wearer's physical parameters, such as heart rate, blood oxygen, or blood pressure. The wearable device may monitor the wearer's physical health through a variety of sensors or detection circuits, such as temperature sensors, accelerometers, gyroscopes, magnetometers, current detection circuits, resistance detection circuits, and the like. Among the numerous physiological signals of the human body, electrical signals, as important physiological signals, can reflect numerous physical conditions. Electrical signals include electrocardiogram signals, electromyography signals, electroencephalogram signals, and electrooculogram signals. The wearable device includes a measuring electrode 1, which is used to fit into the human skin to collect the aforementioned electrical signals.

[0037] In conjunction with Figures 1 to 3, an embodiment of the present application provides a measuring electrode 1. The measuring electrode 1 includes a bottom layer 13, an electrode layer 11, and a pad 12. The bottom layer 13 and the electrode layer 11 are stacked, and in the direction away from the bottom layer 13, the electrode layer 11 includes a waterproof membrane 113, a conductive fabric 112, and a conductive coating 111 stacked in sequence. The pad 12 is arranged between the bottom layer 13 and the electrode layer 11, wherein the area of ​​the electrode layer 11 and the bottom layer 13 is larger than the area of ​​the pad 12, and the bottom layer 13 and the electrode layer 11 cover the pad 12. In some embodiments, in the direction from the bottom layer 13 to the pad 12, the stacking order of the electrode layer 11 is the waterproof membrane 113, the conductive fabric 112, and the conductive coating 111.

[0038] When the measuring electrode 1 is in close contact with the wearer's skin, it will be affected by sweat exuded from the skin. The conductive coating 111 can first play a certain waterproof role, and the waterproof membrane 113 can further prevent sweat from penetrating into the liner 12. This arrangement, on the one hand, prevents sweat from affecting the electrical properties of the measuring electrode 1, and on the other hand, prevents sweat from remaining in the measuring electrode 1 and causing odor or mold. The conductive fabric 112 has good conductivity, but the conductive fabric 112 has poor skin adhesion. The conductive coating 111 has good skin adhesion, but its conductivity is poor. By stacking the conductive fabric 112 and the conductive coating 111, the advantages of the conductive fabric 112 and the conductive coating 111 can be combined, so that the electrode layer 11 has both good conductivity and skin adhesion.

[0039] Furthermore, by providing a pad 12 having a thickness greater than that of the electrode layer 11 between the electrode layer 11 and the bottom layer 13, the measuring electrode 1 can have sufficient deformation margin in the thickness direction during contact with the skin, so that the measuring electrode 1 can fit better with the skin, thereby improving the technical problem of motion artifacts generated during the measurement process.

[0040] In some embodiments, in conjunction with Figure 2, the pad 12 includes a first main surface 121 and a second main surface 122 that are arranged opposite to each other, and a side surface 123 surrounding the first main surface 121 and the second main surface 122. The electrode layer 11 includes a first coating area 11a, a second coating area 11b, and an adhesive area 11c. The first coating area 11a covers the first main surface 121. The second coating area 11b covers the side surface 123. The bottom layer 13 covers the second main surface 122, and the adhesive area 11c is attached to the bottom layer 13. In the above manner, the electrode layer 11 and the bottom layer 13 can cover the pad 12 between the two, and a step-like structure is formed on the electrode layer 11, thereby facilitating the adhesion of the electrode layer to the skin. The bottom layer 13 can be an independently formed packaging layer or a shell of other components, which is not specifically limited here.

[0041] In some embodiments, the conductive coating 111 is applied to the portion of the conductive fabric 112 that covers the pad 12. The pad 12 disposed between the electrode layer 11 and the bottom layer 13 causes the measuring electrode 1 to have a raised portion, the laminated structure of which is a three-layer laminated structure of the bottom layer 13, the pad 12, and the electrode layer 11. The relatively recessed portion of the measuring electrode 1 is a two-layer laminated structure of the bottom layer 13 and the electrode layer 11. For the measuring electrode 1, the portion that needs to be in direct contact with the skin is the aforementioned raised portion with the pad 12. Therefore, the conductive coating 111 is applied to the portion of the conductive fabric 112 that wraps the pad 12, that is, the portion of the conductive coating 111 that is raised by the pad 12, which can meet the requirement that the measuring electrode 1 fits the skin. At the same time, it can reduce the impact on the conductivity of the portion of the electrode layer 11 that is not coated with the conductive coating 111.

[0042] In some embodiments, the pad 12 is formed of any one or a combination of room temperature vulcanized silicone rubber, space cotton, and foam. The aforementioned materials have excellent properties in terms of weight, compression deformation, and elastic recovery, which can make the measuring electrode 1 fit better with the skin.

[0043] In some embodiments, the thickness of the pad 12 is 0.1 mm to 10 mm, for example, 0.3 mm to 0.8 mm, 0.4 mm to 0.6 mm, and specifically 0.35 mm, 0.45 mm, 0.55 mm, or 0.65 mm. If the pad 12 is too thin, the deformation provided is too small, resulting in insufficient improvement in the fit between the measuring electrode 1 and the skin. If the pad 12 is too thick, the thickness and volume of the measuring electrode 1 are too large, which in turn reduces the fit between the measuring electrode 1 and the skin.

[0044] In some embodiments, the hardness of the pad 12 is between 0 degrees of the Shore 00 standard and 90 degrees of the Shore A standard. In the field of materials technology, the description of hardness can be described using Shore hardness. There are also different standards for Shore hardness, such as Shore 00, Shore A, and Shore D. Among them, those skilled in the art can use different hardness standards based on the material to be tested, and different hardness standards can be converted into each other to a certain extent. This application uses different hardness standards to define the minimum hardness and maximum hardness of the pad 12 material. The minimum hardness of the pad 12 needs to be greater than 0 degrees of the Shore 00 standard, and the maximum hardness of the pad 12 needs to be less than 90 degrees of the Shore A standard. If the hardness of the pad 12 is too low, the pad 12 cannot provide sufficient support for the electrode layer 11, nor can it improve the fit between the measuring electrode 1 and the skin. If the hardness of the pad 12 is too high, the deformation that can be produced by the measuring electrode 1 as a whole will be reduced, which will reduce the fit between the measuring electrode 1 and the skin.

[0045] In some embodiments, the thickness of the conductive coating 111 is 0.01 mm to 0.5 mm, such as 0.05 mm to 0.4 mm, 0.1 mm to 0.3 mm, or 0.15 mm to 0.25 mm. Specifically, the thickness can be 0.03 mm, 0.08 mm, 0.12 mm, 0.16 mm, 0.23 mm, 0.28 mm, 0.31 mm, 0.37 mm, 0.43 mm, or 0.47 mm. If the conductive coating 111 is too thin, its durability will be reduced and it will be easily damaged. If it is too thick, on the one hand, the measuring electrode 1 will be too large, affecting its contact with the skin; on the other hand, its resistance will be too high, affecting the transmission of electrical signals.

[0046] In some embodiments, the hardness of the conductive coating 111 is between 0 and 50 degrees of the Shore A standard. For example, 11 degrees, 18 degrees, 23 degrees, 28 degrees, 33 degrees, 39 degrees, 42 degrees or 47 degrees. If the hardness of the conductive coating 111 is too low, it will be easily deformed and introduce noise into the signal acquisition. If the hardness of the conductive coating 111 is too high, its fit with the skin will decrease. It should be noted that the hardness of the conductive coating 111 refers to its intrinsic hardness. Since the thickness of the conductive coating 111 on the measuring electrode 1 does not support a standard hardness test, its hardness refers to the hardness of a material with a similar thickness that can support a standard hardness test.

[0047] In some embodiments, the conductive coating 111 is made of any one or a combination of conductive resin, conductive silicone, conductive thermoplastic polyurethane, or conductive silver paste. The conductive coating 111 is designed to conform to the skin, allowing power signals to pass through while also providing good adhesion to the skin.

[0048] In some embodiments, the conductive resin includes an epoxy resin, a conductive filler, a silane coupling agent, a curing agent and a promoter. The silane coupling agent can improve the dispersibility and adhesion of the conductive filler in the resin, improve the compatibility between the conductive filler and the epoxy resin, improve the process performance and improve the mechanical, electrical and weather resistance of the conductive resin. The curing agent (or cross-linking agent) can be a fatty amine, a thermosetting resin, an amide, a polyamide or an acid anhydride, which is not specifically limited here. The curing agent can enable the epoxy resin to complete chemical reactions such as condensation, ring closure, addition or catalysis during molding. The promoter can be a fatty amine promoter, an acid anhydride promoter, a polyetheramine catalyst or a latent catalyst, etc., which is not specifically limited here. The promoter can increase the reaction rate of the conductive resin during the molding process.

[0049] In some embodiments, the conductive silicone comprises silicone, a conductive filler, a silane coupling agent, a curing agent and a promoter. The silane coupling agent can improve the dispersibility and adhesion of the conductive filler in the silicone, improve the compatibility between the conductive filler and the silicone, improve the process performance and improve the mechanical, electrical and weather resistance of the conductive silicone. The curing agent (or cross-linking agent) can be a fatty amine, a thermosetting resin, an amide, a polyamide or an acid anhydride, which is not specifically limited here. The curing agent can enable the silicone to complete chemical reactions such as condensation, ring closure, addition or catalysis during molding. The promoter can be a fatty amine promoter, an acid anhydride promoter, a polyetheramine catalyst or a latent catalyst, etc., which is not specifically limited here. The promoter can increase the reaction rate of the conductive silicone during the molding process.

[0050] In some embodiments, the conductive thermoplastic polyurethane includes thermoplastic polyurethane (TPU) and a conductive filler.

[0051] Based on the above embodiments, the conductive filler includes any one of conductive carbon black, conductive graphene or conductive carbon nanotubes or a combination thereof. The conductive filler can increase the conductivity of the conductive coating 111, which is beneficial for the transmission of electrical signals.

[0052] In some embodiments, the conductive coating 111 may further be mixed with pigments or colorants of different colors to change the color of the conductive coating 111 .

[0053] In some embodiments, the conductive silver paste includes an epoxy resin, silver nanoparticles, a curing agent, and an accelerator. The curing agent can crosslink the molecular chains in the epoxy resin, promoting its curing. The accelerator can increase the reaction rate during molding. Those skilled in the art can select the type of curing agent and accelerator based on actual conditions, and will not be further described here.

[0054] In some embodiments, the thickness of the conductive fabric 112 is 0.05-1 mm, for example, 0.1-0.7 mm, 0.3-0.6 mm. Specifically, it can be 0.08 mm, 0.2 mm, 0.4 mm, 0.7 mm, or 0.9 mm. A too thin thickness of the conductive fabric 112 can reduce the overall strength of the measuring electrode 1. On the other hand, a too thick thickness can reduce the deformation of the measuring electrode 1, affecting its fit to the skin.

[0055] In some embodiments, the conductive fabric 112 is any one of conductive silver fabric, nickel-copper conductive fabric 112, copper conductive fabric 112, and stainless steel conductive fabric 112. The conductive fabric 112 is woven from a conductive material and has good conductivity and suitable stiffness to facilitate contact with the skin.

[0056] In some embodiments, the thickness of the waterproof membrane 113 is 10 μm-200 μm, such as 50 μm-150 μm, 80 μm-120 μm, and can be 30 μm, 60 μm, 80 μm, 110 μm, 140 μm, or 170 μm.

[0057] The waterproof membrane 113 is bonded to the conductive fabric 112 via a hot press process, without any adhesive between them. Since the measuring electrode 1 is directly applied to the skin, allergens must be minimized within the measuring electrode 1. For example, adhesives such as glue can easily become allergens. By bonding the waterproof membrane 113 to the conductive fabric 112 via a hot press process, the present invention can reduce allergens carried within the measuring electrode 1. Similarly, hot pressing can also be used to bond the electrode layer 11 to the base layer 13, as well as other layers.

[0058] In conjunction with Figure 4 , in some embodiments, the measuring electrode 1 further includes a terminal 14 , which is disposed in the portion of the electrode layer 11 not covered by the pad 12 . The electrical signal measured by the measuring electrode 1 can be output to the wearable device via the terminal 14 , facilitating processing, analysis, and visualization of the electrical signal by the wearable device. The portion of the electrode layer 11 covering the pad 12 is intended for contact with the skin, and the provision of the terminal 14 in the portion of the electrode layer 11 not covered by the pad 12 can reduce the impact of the terminal 14 on the electrical signal collected by the measuring electrode 1 .

[0059] Furthermore, the connection terminals 14 are provided on the portion of the conductive fabric 112 not covered by the pads 12, and the portion of the conductive fabric 112 not covered by the pads 12 is not provided with the conductive coating 111. In other words, the portion of the electrode layer 11 not covered by the pads 12 is not provided with the conductive coating 111. This allows the connection terminals 14 to be directly electrically connected to the conductive fabric 112, which has better conductivity, facilitating the transmission of electrical signals.

[0060] In some embodiments, the terminal block 14 includes a wire 141 and a composite layer 142. The wire 141 is disposed between the composite layer 142 and the conductive fabric 112. The wire 141 can directly contact the conductive fabric 112 to output the electrical signal. The wire 141 can be shaped like a serpentine or zigzag on the conductive fabric 112 to increase the contact area between the wire 141 and the conductive fabric 112, thereby reducing the resistance of the electrical signal during transmission. The composite layer 142 can press the wire 141 onto the conductive fabric 112.

[0061] In some embodiments, the wire 141 includes a contact portion and a lead portion. The contact portion is serpentine-shaped and contacts the electrode layer. The lead portion is connected to the contact portion and extends outside the electrode layer 11. The serpentine shape of the contact portion increases the contact area between the wire 141 and the conductive fabric 112. The lead portion facilitates connection of the wire 141 to external devices.

[0062] Furthermore, the electrode layer 11 has a length direction and a width direction, and the bonding portion includes multiple first wire segments and multiple second wire segments. The multiple first wire segments are arranged side by side with each other along one of the length direction and the width direction, and extend along the other of the length direction and the width direction. The multiple second wire segments respectively connect the adjacent ends of two adjacent first wire segments.

[0063] Furthermore, composite layer 142 includes a conductive wire layer and a thermoplastic polyurethane layer, with the conductive wire layer facing wire 141. The conductive wire can be formed into the conductive wire layer by weaving or other methods, and the conductive wire layer can be bonded to the thermoplastic polyurethane layer by heat pressing, and then bonded to wire 141 and conductive fabric 112. In terminal block 14, wire 141 is directly electrically connected to conductive fabric 112. Furthermore, after lamination of the conductive wire layer, it can be indirectly electrically connected to conductive fabric 112 through the conductive wire layer. This method further increases the contact area between wire 141 and conductive fabric 112, reduces the resistance between terminal block 14 and conductive fabric 112, and facilitates further propagation of electrical signals.

[0064] The conductive wire layer is formed by any one or a combination of conductive yarn, conductive metal wire and conductive carbon fiber. If conductive yarn is used, the diameter of the conductive yarn is 10-500 denier. For example, 50-400 denier, 100-300 denier or 150-250 denier. Specifically, it can be 40 denier, 80 denier, 100 denier, 150 denier, 180 denier, 230 denier or 300 denier. If conductive metal wire is used, the conductive metal wire is 10μm-100μm. For example, 20μm-80μm, 40μm-60μm or 45μm-55μm. If conductive carbon fiber is used, the diameter of the conductive carbon fiber is 10μm-100μm. For example, 20μm-80μm, 40μm-60μm or 45μm-55μm. If the conductive wires in the conductive wire layer are too thin, the contact area between the conductive wire layer and the conductive fabric 112 will be too small, failing to sufficiently optimize the connection between the wires 141 and the conductive fabric 112. If the conductive wires are too thick, the thickness of the conductive wire layer will be too large, affecting the connection between the terminal 14 and the conductive fabric 112 and the fit of the measuring electrode 1 to the skin.

[0065] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A measuring electrode, characterized in that: include: A bottom layer and an electrode layer, wherein the bottom layer and the electrode layer are stacked; A gasket is arranged between the bottom layer and the electrode layer, wherein the area of ​​the electrode layer and the bottom layer is larger than the area of ​​the gasket, the bottom layer and the electrode layer seal and cover the gasket, and the thickness of the gasket is greater than the thickness of the electrode layer.

2. The measuring electrode according to claim 1, characterized in that: The liner comprises a first main surface and a second main surface disposed opposite to each other, and a side peripheral surface connecting the first main surface and the second main surface; The electrode layer includes a first coating area, a second coating area and an adhesive area; The first covering area covers the first main surface, and the second covering area covers the side peripheral surface; the bottom layer covers the second main surface, and the adhesive area is in contact with the bottom layer.

3. The measuring electrode according to claim 1, characterized in that: In a direction away from the bottom layer, the electrode layer includes a waterproof membrane, a conductive fabric and a conductive coating layer stacked in sequence.

4. The measuring electrode according to claim 3, characterized in that: The hardness of the conductive coating is between 0 and 50 degrees on the Shore A scale; the thickness of the conductive coating is 0.01 mm to 0.5 mm; and the thickness of the conductive fabric is 0.05 mm to 1 mm.

5. The measuring electrode according to claim 3, characterized in that: The conductive coating is made of any one of conductive resin, conductive silica gel, conductive thermoplastic polyurethane or conductive silver paste or a combination of several of them.

6. The measuring electrode according to claim 5, characterized in that: The conductive resin includes epoxy resin, conductive filler, silane coupling agent, curing agent and accelerator; The conductive silicone comprises silicone, conductive filler, silane coupling agent, curing agent and accelerator; The conductive thermoplastic polyurethane comprises thermoplastic polyurethane and conductive filler; The conductive silver paste comprises epoxy resin, silver nanoparticles, a curing agent and an accelerator.

7. The measuring electrode according to claim 6, characterized in that: The conductive filler includes any one of conductive carbon black, conductive graphene or conductive carbon nanotubes, or a combination of several of them.

8. The measuring electrode according to claim 3, characterized in that: The conductive coating is coated on a portion of the conductive fabric covering the pad.

9. The measuring electrode according to claim 3, characterized in that: The conductive fabric is any one of conductive silver fabric, nickel-copper conductive fabric, copper conductive fabric and stainless steel conductive fabric.

10. The measuring electrode according to claim 3, characterized in that: The thickness of the waterproof membrane is 10 μm-200 μm.

11. The measuring electrode according to claim 3, characterized in that: The waterproof membrane is bonded to the conductive fabric through a hot pressing process, and no adhesive is provided between the waterproof membrane and the conductive fabric.

12. The measuring electrode according to claim 3, characterized in that: The measuring electrode further includes a connection terminal, and the connection terminal is provided at a portion of the electrode layer not covering the pad.

13. The measuring electrode according to claim 12, characterized in that: The connection terminal is arranged on the portion of the conductive fabric not covered with the pad, and the portion of the conductive fabric not covered with the pad is not provided with a conductive coating. The connection terminal includes a wire and a composite layer, and the wire is arranged between the composite layer and the conductive fabric.

14. The measuring electrode according to claim 13, characterized in that: The lead includes a bonding portion and a lead-out portion, wherein the bonding portion is bonded to the electrode layer and arranged in a serpentine shape, and the lead-out portion is connected to the bonding portion and extends to the outside of the electrode layer.

15. The measuring electrode according to claim 13, characterized in that: The composite layer includes a conductive wire layer and a thermoplastic polyurethane layer, wherein the conductive wire layer faces the conductive wire.

16. The measuring electrode according to claim 15, characterized in that: The conductive wire layer is formed by any one or a combination of conductive yarn, conductive metal wire and conductive carbon fiber; wherein the diameter of the conductive yarn is 10-500 denier, the conductive metal wire is 10μm-100μm, or the diameter of the conductive carbon fiber is 10μm-100μm.

17. The measuring electrode according to claim 1, characterized in that: The liner is formed by any one or a combination of room temperature vulcanized silicone rubber, space cotton, and foam.

18. The measuring electrode according to claim 1, characterized in that: The thickness of the liner is 0.1 mm to 10 mm, and the hardness of the liner is between 0 degrees of Shore 00 standard and 90 degrees of Shore A standard.

19. A wearable device, characterized in that: include: The measuring electrode according to any one of claims 1 to 18.

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