CN110440958A - A kind of capacitance pressure transducer, based on warp-knitted spacer fabric - Google Patents
A kind of capacitance pressure transducer, based on warp-knitted spacer fabric Download PDFInfo
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- CN110440958A CN110440958A CN201910721023.4A CN201910721023A CN110440958A CN 110440958 A CN110440958 A CN 110440958A CN 201910721023 A CN201910721023 A CN 201910721023A CN 110440958 A CN110440958 A CN 110440958A
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- 239000004744 fabric Substances 0.000 title claims abstract description 82
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 58
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- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000002759 woven fabric Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000004753 textile Substances 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 15
- 229920000728 polyester Polymers 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
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- 239000002390 adhesive tape Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
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- 230000008859 change Effects 0.000 description 3
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- 238000002360 preparation method Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
- D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0006—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using woven fabrics
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
- G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
- G01L1/146—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors for measuring force distributions, e.g. using force arrays
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/04—Properties of the materials having electrical or magnetic properties
- D06N2209/041—Conductive
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/16—Physical properties antistatic; conductive
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Knitting Of Fabric (AREA)
- Woven Fabrics (AREA)
Abstract
本发明公开了一种基于经编间隔织物的电容式压力传感器，包括介质层和与介质层相连的电极板，所述介质层为经编间隔织物，所述电极板为导电织物，所述经编间隔织物的两侧均设置有导电织物，所述导电织物处连接有导线引脚。本发明结合了经编间隔织物抗压缩性良好、透气透湿性优良等优点，提供一种可集成到日用纺织品中的柔性传感器，可以检测压力变化，具有便携性好、灵敏度高、环保舒适等特点。
The invention discloses a capacitive pressure sensor based on a warp-knitted spacer fabric, which comprises a medium layer and an electrode plate connected to the medium layer, the medium layer is a warp-knitted spacer fabric, the electrode plate is a conductive fabric, and the warp-knitted spacer fabric is used. Conductive fabrics are arranged on both sides of the braided spacer fabric, and wire pins are connected to the conductive fabrics. The present invention combines the advantages of warp-knitted spacer fabrics such as good compression resistance and excellent breathability and moisture permeability, and provides a flexible sensor that can be integrated into daily textiles, which can detect pressure changes, and has good portability, high sensitivity, environmental protection and comfort, etc. features.
Description
技术领域technical field
本发明涉及一种基于经编间隔织物的电容式压力传感器，属于纺织加工技术领域。The invention relates to a capacitive pressure sensor based on a warp-knitted spacer fabric, belonging to the technical field of textile processing.
背景技术Background technique
日常生活中，纺织品是人们日常使用最频繁的消费品。近年来，随着人们对于运动健身、医疗保健、安全防护等方面日益增长的需求，具有特殊功能的智能纺织品应运而生、快速发展。早期的智能纺织品是在传统面料中嵌入刚性的传感器、电路板、CPU等元器件，具有笨重、突兀和难以清洗的缺点。而对于以纺织品材料、结构为基础的柔性传感器的研究则解决了这些问题，提高了智能纺织品的柔性与舒适性。In daily life, textiles are the most frequently used consumer goods. In recent years, with people's increasing demand for sports and fitness, medical care, safety protection, etc., smart textiles with special functions have emerged and developed rapidly. Early smart textiles embedded rigid sensors, circuit boards, CPUs and other components in traditional fabrics, which were bulky, awkward and difficult to clean. The research on flexible sensors based on textile materials and structures solves these problems and improves the flexibility and comfort of smart textiles.
发明内容Contents of the invention
为了克服现有技术的不足，本发明提供了一种基于经编间隔织物的电容式压力传感器。In order to overcome the deficiencies of the prior art, the present invention provides a capacitive pressure sensor based on warp-knitted spacer fabric.
本发明是通过以下技术方案来实现的：The present invention is achieved through the following technical solutions:
一种基于经编间隔织物的电容式压力传感器，包括介质层和与介质层相连的电极板，所述介质层为经编间隔织物，所述电极板为导电织物，所述经编间隔织物的两侧均设置有导电织物，所述导电织物处连接有导线引脚。A capacitive pressure sensor based on a warp-knitted spacer fabric, comprising a dielectric layer and an electrode plate connected to the medium layer, the medium layer is a warp-knitted spacer fabric, the electrode plate is a conductive fabric, and the warp-knitted spacer fabric Conductive fabrics are arranged on both sides, and wire pins are connected to the conductive fabrics.
所述的一种基于经编间隔织物的电容式压力传感器，所述经编间隔织物的厚度为7～21mm。The above-mentioned capacitive pressure sensor based on a warp-knitted spacer fabric, the thickness of the warp-knitted spacer fabric is 7-21 mm.
所述的一种基于经编间隔织物的电容式压力传感器，所述经编间隔织物的两表面可以是网眼、平纹等结构。The above-mentioned capacitive pressure sensor based on warp-knitted spacer fabric, the two surfaces of the warp-knitted spacer fabric can be of mesh, plain weave and other structures.
所述的一种基于经编间隔织物的电容式压力传感器，所述导电织物为导电涂层处理的高密平纹机织物、导电纱线织制的纬编导电织物或经编导电织物。In the capacitive pressure sensor based on warp-knitted spacer fabric, the conductive fabric is high-density plain woven fabric treated with conductive coating, weft-knitted conductive fabric woven with conductive yarn, or warp-knitted conductive fabric.
所述的一种基于经编间隔织物的电容式压力传感器，所述介质层与电极板之间通过粘结剂进行贴合。In the capacitive pressure sensor based on the warp-knitted spacer fabric, the dielectric layer and the electrode plate are bonded with an adhesive.
所述的一种基于经编间隔织物的电容式压力传感器，所述电极板在介质层上的覆盖方式为完全覆盖、部分覆盖或多区域排列覆盖。In the capacitive pressure sensor based on the warp-knitted spacer fabric, the electrode plates are covered on the dielectric layer in the form of complete coverage, partial coverage or multi-area arrangement coverage.
所述的一种基于经编间隔织物的电容式压力传感器，所述导线引脚使用绝缘胶带粘贴于电极板上。In the above-mentioned capacitive pressure sensor based on warp-knitted spacer fabric, the wire pins are pasted on the electrode plate with insulating tape.
本发明所达到的有益效果：The beneficial effect that the present invention reaches:
本发明的压力传感器受到外力作用时，经编间隔织物间距发生改变，从而引起电容值变化，以实现测量压力变化的目的。When the pressure sensor of the present invention is subjected to an external force, the distance between the warp-knitted spacers changes, thereby causing a change in capacitance value, so as to achieve the purpose of measuring pressure changes.
本发明结合了经编间隔织物抗压缩性良好、透气透湿性优良等优点，提供一种可集成到日用纺织品中的柔性传感器，可以检测压力变化，具有便携性好、灵敏度高、环保舒适等特点。The invention combines the advantages of warp-knitted spacer fabrics with good compression resistance and excellent breathability and moisture permeability, and provides a flexible sensor that can be integrated into daily textiles, which can detect pressure changes, and has good portability, high sensitivity, environmental protection and comfort, etc. features.
附图说明Description of drawings
图1为本发明电容传感器的结构示意图；Fig. 1 is the structural representation of capacitive sensor of the present invention;
图2为图1的正视图；Fig. 2 is the front view of Fig. 1;
图3为本发明电容传感器的原理示意图；Fig. 3 is the schematic diagram of the principle of the capacitive sensor of the present invention;
图4为实施例1中电容传感器在十次重复压缩下的应变-电容曲线；Fig. 4 is the strain-capacitance curve of capacitive sensor under ten repeated compressions in embodiment 1;
图中：1、介质层、2、粘结剂，3、电极板，4、导线引脚，5、胶带。In the figure: 1. Dielectric layer, 2. Adhesive, 3. Electrode plate, 4. Wire pins, 5. Adhesive tape.
具体实施方式Detailed ways
下面结合附图对本发明作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
实施例1Example 1
经编间隔织物的电容式压力传感器的制备方法，具体步骤如下：The preparation method of the capacitive pressure sensor of warp knitted spacer fabric, concrete steps are as follows:
(1)选用双针床经编机RD6N机型，该机型中GB1-GB3梳栉用于编织间隔织物上表面，GB5-GB6梳栉用于编织间隔织物下表面，GB4起连接上下表面的作用。机器机号为E12，机宽为130英寸，采用花盘凸轮横移、电子送经机构和电子牵拉机构。(1) Select the RD6N model of the double-needle bed warp knitting machine. In this model, GB1-GB3 bars are used to weave the upper surface of the spacer fabric, GB5-GB6 bars are used to weave the lower surface of the spacer fabric, and GB4 is used to connect the upper and lower surfaces. effect. The machine number is E12, the width of the machine is 130 inches, and it adopts face cam traverse, electronic warp let-off mechanism and electronic pulling mechanism.
(2)采用33.33tex144f的涤纶复丝织造间隔织物的表面层，采用27.77tex的涤纶单丝织造间隔织物的连接层。间隔织物的两表面选用网眼结构，具体的垫纱工艺为GB1：0-0-0-0/2-2-2-2/1-1-1-1/3-3-3-3/1-1-1-1/2-2-2-2//，满穿；GB2：(1-0-0-0/0-1-1-1)×3//,满穿；GB4：1-0-1-2/2-3-2-1//，满穿；GB5：(1-1-1-0/0-0-0-1)×3//，满穿；GB6：0-0-0-0/2-2-2-2/1-1-1-1/3-3-3-3/1-1-1-1/2-2-2-2//，满穿。(2) Use 33.33tex144f polyester multifilament to weave the surface layer of the spacer fabric, and adopt 27.77tex polyester monofilament to weave the connecting layer of the spacer fabric. The two surfaces of the spacer fabric adopt mesh structure, and the specific laying process is GB1: 0-0-0-0/2-2-2-2/1-1-1-1/3-3-3-3/1 -1-1-1/2-2-2-2//, fully worn; GB2: (1-0-0-0/0-1-1-1)×3//, fully worn; GB4: 1 -0-1-2/2-3-2-1//, fully worn; GB5: (1-1-1-0/0-0-0-1)×3//, fully worn; GB6: 0 -0-0-0/2-2-2-2/1-1-1-1/3-3-3-3/1-1-1-1/2-2-2-2//, full Put on.
(3)采用机织高密导电胶布为电极板。在此实施例中，机织高密导电胶布是以涤纶纤维为原料，通过在高密机织物上电镀一层镍金属物质，再镀一层具有高导电性的铜金属物质，在背面涂覆亚克力胶而制成的导电高密机织布，其厚度是0.1mm，电阻为10 5Ω/cm2。将该种机织高密导电胶布直接贴服在上述的间隔织物两表面，电极和介质层大小都为10cm×10cm。(3) Use woven high-density conductive adhesive tape as the electrode plate. In this embodiment, the woven high-density conductive tape is made of polyester fiber, and a layer of nickel metal substance is electroplated on the high-density woven fabric, and then a layer of copper metal substance with high conductivity is plated, and acrylic glue is coated on the back. The resulting conductive high-density woven fabric has a thickness of 0.1 mm and a resistance of 10 5Ω/cm 2 . The woven high-density conductive adhesive tape is directly attached to the two surfaces of the above-mentioned spacer fabric, and the size of the electrode and the dielectric layer are both 10cm×10cm.
(4)采用绝缘胶带将导线引脚分别固定在两个电极板表面。电容信号值通过导线引脚传输到测试仪器中。(4) Use insulating tape to fix the wire pins on the surfaces of the two electrode plates respectively. The capacitive signal value is transmitted to the test instrument through the lead pins.
图4是上述实施例所制备的电容式压力传感器在重复十次压缩条件下的应变-电容曲线，从图中可知，本发明的间隔织物电容式压力传感器可以成功根据外界压力的变化转换成电容值的改变，从而实现对于压力值的监测。Fig. 4 is the strain-capacitance curve of the capacitive pressure sensor prepared by the above-mentioned embodiment under the condition of repeated ten times of compression. It can be seen from the figure that the spacer fabric capacitive pressure sensor of the present invention can be successfully converted into capacitance according to the change of external pressure The change of the value, so as to realize the monitoring of the pressure value.
实施例2Example 2
经编间隔织物的电容式压力传感器的制备方法，具体步骤如下：The preparation method of the capacitive pressure sensor of warp knitted spacer fabric, concrete steps are as follows:
(1)选用双针床经编机RD6N机型，该机型中GB1-GB3梳栉用于编织间隔织物上表面，GB5-GB6梳栉用于编织间隔织物下表面，GB4起连接上下表面的作用。机器机号为E12，机宽为130英寸，采用花盘凸轮横移、电子送经机构和电子牵拉机构。(1) Select the RD6N model of the double-needle bed warp knitting machine. In this model, GB1-GB3 bars are used to weave the upper surface of the spacer fabric, GB5-GB6 bars are used to weave the lower surface of the spacer fabric, and GB4 is used to connect the upper and lower surfaces. effect. The machine number is E12, the width of the machine is 130 inches, and it adopts face cam traverse, electronic warp let-off mechanism and electronic pulling mechanism.
(2)采用33.33tex144f涤纶复丝织造间隔织物的表面层，采用35.55tex涤纶单丝织造间隔织物的连接层。在此实施例中，间隔织物其一表面选用网眼结构，另一表面选用平纹结构，具体的垫纱工艺为GB1：(1-0-0-0/1-2-2-2)×2/(2-3-3-3/2-1-1-1)×2//，1穿1空；GB2：(2-3-3-3/2-1-1-1)×2/(1-0-0-0/1-2-2-2)×2//，1穿1空；GB4：1-0-1-2/2-3-2-1//，满穿；GB5：(1-1-1-0/0-0-0-1)×3//，满穿；GB6：0-0-0-0/2-2-2-2//，满穿。(2) Use 33.33tex144f polyester multifilament to weave the surface layer of the spacer fabric, and use 35.55tex polyester monofilament to weave the connecting layer of the spacer fabric. In this embodiment, one surface of the spacer fabric adopts a mesh structure, and the other surface adopts a plain weave structure. The specific lapping process is GB1: (1-0-0-0/1-2-2-2)×2/ (2-3-3-3/2-1-1-1)×2//, 1 through and 1 empty; GB2: (2-3-3-3/2-1-1-1)×2/( 1-0-0-0/1-2-2-2)×2//, 1 wear and 1 empty; GB4: 1-0-1-2/2-3-2-1//, full wear; GB5 : (1-1-1-0/0-0-0-1)×3//, full wear; GB6: 0-0-0-0/2-2-2-2//, full wear.
(3)采用纬编导电织物为电极板。在此实施例中，选用的纬编导电织物采用8.33tex锦纶和4.44tex的镀银锦纶纱线在SM8-TOP2MP2圣东尼单面无缝成型内衣机上编织而成，机器筒径为15英寸，机号为E28。织物为平针添纱组织，厚度为0.79mm，横密为17.5wpc，纵密为24cpc。在此实施例中，采用双面胶作为粘结剂，将所述纬编导电织物贴服在如步骤(2)所述的间隔织物两表面，电极大小为5cm×6cm，介质层大小为10cm×10cm。(3) The weft-knitted conductive fabric is used as the electrode plate. In this embodiment, the weft-knitted conductive fabric selected adopts 8.33tex nylon and 4.44tex silver-plated nylon yarns to be woven on the SM8-TOP2MP2 Santoni single-sided seamless forming underwear machine, and the diameter of the machine barrel is 15 inches. Machine number is E28. The fabric is a flat-knit plated structure with a thickness of 0.79mm, a transverse density of 17.5wpc, and a longitudinal density of 24cpc. In this embodiment, the weft-knitted conductive fabric is attached to the two surfaces of the spacer fabric as described in step (2) by using double-sided adhesive tape as the adhesive, the size of the electrodes is 5cm×6cm, and the size of the dielectric layer is 10cm ×10cm.
(4)采用绝缘胶带将导线引脚分别固定在两个电极板表面。电容信号值通过导线引脚传输到测试仪器中。(4) Use insulating tape to fix the wire pins on the surfaces of the two electrode plates respectively. The capacitive signal value is transmitted to the test instrument through the lead pins.
经编间隔织物是一种三明治结构，具有上下织物表面和中间间隔丝，具有良好的抗压缩性、环保性和透气透湿性能。目前国内外对于经编间隔织物的压缩性能、拉伸性能和透气透湿性能都已做了大量研究，因此，将经编间隔织物作为介质层制成电容式压力传感器具有一定的理论与实用基础。The warp-knitted spacer fabric is a sandwich structure with upper and lower fabric surfaces and intermediate spacer yarns, which has good compression resistance, environmental protection and breathable and moisture-permeable properties. At present, a lot of research has been done on the compression properties, tensile properties and air and moisture permeability of warp-knitted spacer fabrics at home and abroad. Therefore, using warp-knitted spacer fabrics as a dielectric layer to make a capacitive pressure sensor has a certain theoretical and practical basis. .
实施例3Example 3
经编间隔织物的电容式压力传感器的制备方法，具体步骤如下：The preparation method of the capacitive pressure sensor of warp knitted spacer fabric, concrete steps are as follows:
(1)选用双针床经编机RD6N机型，该机型中GB1-GB3梳栉用于编织间隔织物上表面，GB5-GB6梳栉用于编织间隔织物下表面，GB4起连接上下表面的作用。机器机号为E12，机宽为130英寸，采用花盘凸轮横移、电子送经机构和电子牵拉机构。(1) Select the RD6N model of the double-needle bed warp knitting machine. In this model, GB1-GB3 bars are used to weave the upper surface of the spacer fabric, GB5-GB6 bars are used to weave the lower surface of the spacer fabric, and GB4 is used to connect the upper and lower surfaces. effect. The machine number is E12, the width of the machine is 130 inches, and it adopts face cam traverse, electronic warp let-off mechanism and electronic pulling mechanism.
(2)采用33.33tex144f涤纶复丝织造间隔织物的表面层，采用46.66tex涤纶单丝织造间隔织物的连接层。在此实施例中，间隔织物其一表面选用网眼结构，另一表面选用平纹结构，具体的垫纱工艺为GB1：4-5-5-5/3-2-2-2/4-5-5-5/1-0-0-0/2-3-3-3/1-0-0-0//，2穿2空；GB2：1-0-0-0/2-3-3-3/1-0-0-0/4-5-5-5/3-2-2-2/4-5-5-5//，2空2穿；GB3：(1-0-0-0/0-1-1-1)×3//，满穿；GB4：1-0-1-2/2-3-2-1//，满穿；GB5：(1-1-1-0/0-0-0-1)×3//，满穿；GB6：(2-2-2-2/0-0-0-0)×3//，满穿。(2) Use 33.33tex144f polyester multifilament to weave the surface layer of the spacer fabric, and use 46.66tex polyester monofilament to weave the connecting layer of the spacer fabric. In this embodiment, one surface of the spacer fabric adopts a mesh structure, and the other surface adopts a plain weave structure. The specific lapping process is GB1: 4-5-5-5/3-2-2-2/4-5- 5-5/1-0-0-0/2-3-3-3/1-0-0-0//, 2 through 2 empty; GB2: 1-0-0-0/2-3-3 -3/1-0-0-0/4-5-5-5/3-2-2-2/4-5-5-5//, 2 empty and 2 worn; GB3: (1-0-0 -0/0-1-1-1)×3//, fully worn; GB4: 1-0-1-2/2-3-2-1//, fully worn; GB5: (1-1-1 -0/0-0-0-1)×3//, fully worn; GB6: (2-2-2-2/0-0-0-0)×3//, fully worn.
(3)采用经编导电织物为电极板。在此实施例中，选用的经编导电织物在HKS3特里科经编机上编织而成，机器机号为E28，织物厚度为1.93mm，横密为16综行/cm，纵密为20横列/cm。具体的原料及垫纱工艺为GB1：1-0/2-3//，4.44tex镀银锦纶，满穿；GB2：2-3/1-0//，5.55tex/2.22tex涤氨包覆纱，满穿；GB3：1-0/2-3//，5.55tex/24f FDY镀银锦纶，满穿。在此实施例中，使用双面胶作为粘结剂，将上述经编导电织物贴服在如步骤(2)所述的间隔织物两表面，电极和介质层大小都为5cm×5cm。(3) The warp-knitted conductive fabric is used as the electrode plate. In this embodiment, the selected warp-knitted conductive fabric is woven on a HKS3 tricot machine, the machine gauge is E28, the fabric thickness is 1.93mm, the horizontal density is 16 harnesses/cm, and the vertical density is 20 rows /cm. The specific raw materials and laying process are GB1: 1-0/2-3//, 4.44tex silver-plated nylon, fully worn; GB2: 2-3/1-0//, 5.55tex/2.22tex polyester-spanned coating Yarn, fully worn; GB3: 1-0/2-3//, 5.55tex/24f FDY silver-plated nylon, fully worn. In this embodiment, double-sided tape is used as a binder, and the above-mentioned warp-knitted conductive fabric is attached to both surfaces of the spacer fabric as described in step (2), and the size of the electrode and the dielectric layer are both 5cm×5cm.
(4)采用绝缘胶带将导线引脚分别固定在两个电极板表面。电容信号值通过导线引脚传输到测试仪器中。(4) Use insulating tape to fix the wire pins on the surfaces of the two electrode plates respectively. The capacitive signal value is transmitted to the test instrument through the lead pins.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变形，这些改进和变形也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.
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