CN112378551A - Tension detector based on organic conjugated polymer material - Google Patents
Tension detector based on organic conjugated polymer material Download PDFInfo
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- CN112378551A CN112378551A CN202011336651.XA CN202011336651A CN112378551A CN 112378551 A CN112378551 A CN 112378551A CN 202011336651 A CN202011336651 A CN 202011336651A CN 112378551 A CN112378551 A CN 112378551A
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- polymer material
- conjugated polymer
- organic conjugated
- force application
- organic
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- 229920000547 conjugated polymer Polymers 0.000 title claims abstract description 82
- 239000002861 polymer material Substances 0.000 title claims abstract description 82
- 239000000463 material Substances 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 229920000301 poly(3-hexylthiophene-2,5-diyl) polymer Polymers 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 11
- 230000035945 sensitivity Effects 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000001419 dependent effect Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
Abstract
The invention provides a tension detector based on an organic conjugated polymer material, which comprises an elastic part, a first force application part, a second force application part, an organic conjugated polymer material part, a source electrode and a drain electrode, wherein the first force application part and the second force application part are respectively and fixedly connected with two ends of the elastic part, the organic conjugated polymer material part is arranged on the elastic part, the length of the organic conjugated polymer material part is smaller than that of the elastic part, and the source electrode and the drain electrode are respectively arranged near two ends of the organic conjugated polymer material part. The invention has low cost and simple process; in addition, the invention is based on traditional electricity and is beneficial to integration. Furthermore, the carrier mobility of the organic conjugated polymer material is heavily dependent on the internal stress and the surface energy of the nearby material, so the invention also has the advantage of high tension detection sensitivity.
Description
Technical Field
The invention relates to the field of tension detection, in particular to a tension detector based on an organic conjugated polymer material.
Background
With the development of flexible electronics, the flexible sensing technology has developed into a high and new intelligent interaction technology which is very attractive, and has very wide market application prospects in the fields of artificial electronic skins, flexible touch screens, intelligent homes, intelligent robots and the like. The traditional detector aiming at stress or pulling force has complex processing technology, is not beneficial to integration and has low detection sensitivity.
Disclosure of Invention
In order to solve the above problems, the present invention provides a tension detector based on an organic conjugated polymer material, including an elastic portion, a first force application portion, a second force application portion, an organic conjugated polymer material portion, a source electrode, and a drain electrode, wherein the first force application portion and the second force application portion are respectively and fixedly connected to two ends of the elastic portion, the organic conjugated polymer material portion is disposed on the elastic portion, the length of the organic conjugated polymer material portion is smaller than that of the elastic portion, and the source electrode and the drain electrode are respectively disposed near two ends of the organic conjugated polymer material portion.
Further, a direction of a line connecting the source electrode and the drain electrode is parallel to a direction of a line connecting the first urging portion and the second urging portion.
Further, the elastic part is provided with a protrusion, and the organic conjugated polymer material part covers the protrusion.
Further, the material of the protrusion is the same as that of the elastic portion.
Furthermore, the device also comprises a strengthening action column which is fixed on the elastic part.
Further, the height of the reinforcing effect column is the same as the height of the organic conjugated polymer material portion.
Further, the material of the enhanced action column is a piezoelectric material.
Further, the elastic portion is an insulating material.
Further, the material of the source and drain is copper.
Further, the material of the organic conjugated polymer material portion is poly-3-hexylthiophene.
The invention has the beneficial effects that: the invention provides a tension detector based on an organic conjugated polymer material, which comprises an elastic part, a first force application part, a second force application part, an organic conjugated polymer material part, a source electrode and a drain electrode, wherein the first force application part and the second force application part are respectively and fixedly connected with two ends of the elastic part, the organic conjugated polymer material part is arranged on the elastic part, the length of the organic conjugated polymer material part is smaller than that of the elastic part, and the source electrode and the drain electrode are respectively arranged near two ends of the organic conjugated polymer material part. When the device is applied, a tensile force to be measured is applied between the first force application part and the second force application part, and the length of the elastic part is changed by the tensile force to be measured, so that the surface energy of the elastic part and the stress in the organic conjugated polymer material part are changed, and the conductive property of the organic conjugated polymer material part is changed. And determining the tensile force to be measured through the change of the conductive characteristic of the organic conjugated polymer material part. The invention is based on organic conjugated polymer material, the cost is low; the organic conjugated polymer material can be arranged through spin coating, and the process is simple; in addition, the invention is based on traditional electricity and is beneficial to integration. Furthermore, the carrier mobility of the organic conjugated polymer material is heavily dependent on the internal stress and the surface energy of the nearby material, so the invention also has the advantage of high tension detection sensitivity.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a tension detector based on an organic conjugated polymer material.
FIG. 2 is a schematic diagram of yet another alternative tension detector based on an organic conjugated polymer material.
FIG. 3 is a schematic view of yet another alternative tension detector based on an organic conjugated polymer material.
In the figure: 1. an elastic portion; 2. a first force application part; 3. a second force application part; 4. an organic conjugated polymer material portion; 5. a source electrode; 6. a drain electrode; 7. a protrusion; 8. a reinforcing effect column.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.
Example 1
The invention provides a tension detector based on an organic conjugated polymer material, which comprises an elastic part 1, a first force application part 2, a second force application part 3, an organic conjugated polymer material part 4, a source electrode 5 and a drain electrode 6, as shown in figure 1. The first force application part 2 and the second force application part 3 are respectively fixedly connected with two ends of the elastic part 1. The elastic part 1 is made of insulating materials and elastic materials, and under the action of tensile force to be measured, the elastic part 1 extends. Preferably, the elastic portion 1 is glass fiber. The organic conjugated polymer material portion 4 is provided on the elastic portion 1. The material of the organic conjugated polymer material portion 4 is an organic conjugated polymer material. Specifically, the material of the organic conjugated polymer material portion 4 is poly-3-hexylthiophene. The length of the organic conjugated polymer material portion 4 is smaller than the length of the elastic portion 1, so that the organic conjugated polymer material portion 4 does not contact the first urging portion 2 and the second urging portion 3. The material of the source 5 and drain 6 is copper. The source electrode 5 and the drain electrode 6 are respectively disposed in the vicinity of both ends on the organic conjugated polymer material portion 4. The direction of the connecting line of the source electrode 5 and the drain electrode 6 is parallel to the direction of the connecting line of the first force application part 2 and the second force application part 3, so that when a tensile force acts on the first force application part 2 and the second force application part 3, the organic conjugated polymer material part 4 is changed more under the action of the tensile force, the conductive characteristic of the organic conjugated polymer material part 4 is changed more, and the tensile force detection with higher sensitivity is realized.
When the device is applied, a tensile force to be measured is applied between the first force application part 2 and the second force application part 3, the tensile force to be measured changes the length of the elastic part 1, so that the surface energy of the elastic part 1, the stress in the organic conjugated polymer material part 4 and the shape of the organic conjugated polymer material part 4 are changed, and the conductive characteristic of the organic conjugated polymer material part 4 is changed. The tension to be measured is determined by the change in the conductive property of the organic conjugated polymer material portion 4. The invention is based on organic conjugated polymer material, the cost is low; the organic conjugated polymer material can be arranged through spin coating, and the process is simple; in addition, the invention is based on traditional electricity and is beneficial to integration. Furthermore, the carrier mobility of the organic conjugated polymer material is heavily dependent on the internal stress and the surface energy of the nearby material, so the invention also has the advantage of high tension detection sensitivity.
Example 2
In example 1, as shown in fig. 2, the elastic member 1 is provided with the projections 7, the organic conjugated polymer material member 4 covers the projections 7, and the material of the projections 7 is the same as that of the elastic member 1. Specifically, the protrusion 7 is in the shape of a strip, and the direction of the strip is perpendicular to the connection direction of the first force application part 2 and the second force application part 3, so that under the action of a pulling force, the protrusion 7 changes the organic conjugated polymer material part 4 more, thereby changing the conductive property of the organic conjugated polymer material part 4 more, and realizing a pulling force detection with higher sensitivity. In addition, the cross-sectional shape of the protrusion 7 is triangular or rectangular to further enhance the effect of the elastic part 1 on the organic conjugated polymer material part 4, thereby further changing the conductive characteristics of the organic conjugated polymer material part 4, and further improving the sensitivity of tension detection.
Example 3
In addition to embodiment 1, as shown in fig. 3, the present invention further includes a reinforcing column 8, and the reinforcing column 8 is fixed to the elastic portion 1. The height of the reinforcing effect column 8 is the same as the height of the organic conjugated polymer material portion 4. Thus, the elastic portion 1 and the enhanced action column 8 act together on the organic conjugated polymer material portion 4, so that the stress and the shape of the organic conjugated polymer material portion 4 are changed more, the carrier mobility of the organic conjugated polymer material portion 4 is changed more, the conductive characteristic of the organic conjugated polymer material portion 4 is changed more, and the sensitivity of tension detection is further improved.
Further, the material of the enhanced action column 8 is a piezoelectric material. Thus, under the blocking of the organic conjugated polymer material, charges appear on both sides of the enhancement action column 8, and the charges change the carrier mobility in the organic conjugated polymer material portion 4 more, so that the conductive characteristic of the organic conjugated polymer material portion 4 is changed more, and the sensitivity of tension detection is further improved.
Further, the enhanced action column 8 is rectangular. The long side of the rectangle is perpendicular to the direction of the line connecting the first force application part 2 and the second force application part 3. Thus, the reinforcing effect column 8 exerts a larger force on the organic conjugated polymer material portion 4. Therefore, more electric charges appear on the enhanced action column 8, thereby more changing the conductive characteristics of the organic conjugated polymer material portion 4, and further improving the sensitivity of the tension detection.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The tension detector based on the organic conjugated polymer material is characterized by comprising an elastic part, a first force application part, a second force application part, an organic conjugated polymer material part, a source electrode and a drain electrode, wherein the first force application part and the second force application part are respectively and fixedly connected with two ends of the elastic part, the organic conjugated polymer material part is arranged on the elastic part, the length of the organic conjugated polymer material part is smaller than that of the elastic part, and the source electrode and the drain electrode are respectively arranged near two ends of the organic conjugated polymer material part.
2. The organic conjugated polymer material-based tension sensor according to claim 1, wherein: the direction of a line connecting the source electrode and the drain electrode is parallel to the direction of a line connecting the first force application part and the second force application part.
3. The organic conjugated polymer material-based tension sensor according to claim 2, wherein: the elastic part is provided with a bulge, and the organic conjugated polymer material part covers the bulge.
4. The organic conjugated polymer material-based tension sensor according to claim 3, wherein: the material of the protrusion is the same as that of the elastic part.
5. The organic conjugated polymer material-based tension sensor according to claim 2, wherein: the spring part is fixed on the base, and the spring part is fixed on the base.
6. The organic conjugated polymer material-based tension sensor according to claim 5, wherein: the height of the reinforcing effect column is the same as the height of the organic conjugated polymer material portion.
7. The organic conjugated polymer material-based tension sensor according to claim 6, wherein: the reinforcing action column is made of piezoelectric materials.
8. The organic conjugated polymer material-based tension sensor according to any one of claims 1 to 7, wherein: the elastic part is made of insulating materials.
9. The organic conjugated polymer material-based tension sensor according to claim 8, wherein: the source electrode and the drain electrode are made of copper.
10. The organic conjugated polymer material-based tension sensor according to any one of claims 1 to 9, wherein: the material of the organic conjugated polymer material part is poly-3-hexylthiophene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336651.XA CN112378551A (en) | 2020-11-25 | 2020-11-25 | Tension detector based on organic conjugated polymer material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011336651.XA CN112378551A (en) | 2020-11-25 | 2020-11-25 | Tension detector based on organic conjugated polymer material |
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| CN112378551A true CN112378551A (en) | 2021-02-19 |
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| CN202011336651.XA Pending CN112378551A (en) | 2020-11-25 | 2020-11-25 | Tension detector based on organic conjugated polymer material |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876065A (en) * | 2017-03-13 | 2017-06-20 | 青岛大学 | A kind of preparation method of flexible wire stress sensitive resistance and products thereof |
| TW201736460A (en) * | 2016-04-12 | 2017-10-16 | 國立臺灣大學 | Stretchable transistor |
| CN108996463A (en) * | 2018-07-25 | 2018-12-14 | 清华大学深圳研究生院 | A kind of porous graphene heart sound detection sensor and preparation method thereof |
| CN110220801A (en) * | 2019-06-17 | 2019-09-10 | 东南大学 | Polymer material Mechanics Performance Testing device under a kind of minute yardstick |
| CN111551501A (en) * | 2020-05-22 | 2020-08-18 | 西安柯莱特信息科技有限公司 | High-sensitivity optical fiber humidity sensor |
-
2020
- 2020-11-25 CN CN202011336651.XA patent/CN112378551A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201736460A (en) * | 2016-04-12 | 2017-10-16 | 國立臺灣大學 | Stretchable transistor |
| CN106876065A (en) * | 2017-03-13 | 2017-06-20 | 青岛大学 | A kind of preparation method of flexible wire stress sensitive resistance and products thereof |
| CN108996463A (en) * | 2018-07-25 | 2018-12-14 | 清华大学深圳研究生院 | A kind of porous graphene heart sound detection sensor and preparation method thereof |
| CN110220801A (en) * | 2019-06-17 | 2019-09-10 | 东南大学 | Polymer material Mechanics Performance Testing device under a kind of minute yardstick |
| CN111551501A (en) * | 2020-05-22 | 2020-08-18 | 西安柯莱特信息科技有限公司 | High-sensitivity optical fiber humidity sensor |
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Application publication date: 20210219 |