CN112268597A - Induction capacitor based on conductive coating - Google Patents
Induction capacitor based on conductive coating Download PDFInfo
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- CN112268597A CN112268597A CN202011291664.XA CN202011291664A CN112268597A CN 112268597 A CN112268597 A CN 112268597A CN 202011291664 A CN202011291664 A CN 202011291664A CN 112268597 A CN112268597 A CN 112268597A
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- Prior art keywords
- electrode
- flexible substrate
- conductive
- conductive paint
- capacitor based
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- 239000003990 capacitor Substances 0.000 title claims abstract description 30
- 230000006698 induction Effects 0.000 title abstract description 15
- 239000011248 coating agent Substances 0.000 title description 12
- 238000000576 coating method Methods 0.000 title description 12
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 239000003973 paint Substances 0.000 claims abstract description 13
- 230000001939 inductive effect Effects 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000005070 sampling Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses an induction capacitor based on conductive paint, which comprises: the flexible substrate, be provided with first electrode on the flexible substrate with the second electrode, first electrode with the second electrode sets up relatively, a flexible substrate terminal surface facing has the piece of pasting, another terminal surface facing have first electrode with the second electrode, first electrode with the second electrode all is connected with electrically conductive interface. According to the invention, the problem that the induction capacitor cannot be bent is effectively solved, and the problem that the utilization rate of components is low due to the binding between the data sampling processing module and the induction capacitor in the non-contact capacitive liquid level sensor is solved.
Description
Technical Field
The invention relates to the technical field of induction capacitors, in particular to an induction capacitor based on a conductive coating.
Background
At present, a non-contact capacitance type liquid level sensor on the market is mainly made of a common PCB, and the common PCB cannot be completely attached to a cylindrical pipe wall due to the characteristic that the common PCB cannot be bent, so that liquid level measurement cannot be carried out. Meanwhile, since the non-contact capacitance type liquid level sensor encapsulates the sensing capacitor and the data sampling processing module on one PCB, if the sensing capacitor and the data sampling processing module are damaged, the whole system needs to be replaced, and the utilization rate of components is low. Therefore, a method for designing an induction capacitor of a non-contact capacitive liquid level sensor is needed in the market at present to solve the problem that the induction capacitor cannot be bent, and the problem that the utilization rate of components is low due to the fact that a data sampling processing module in the non-contact capacitive liquid level sensor is bound with the induction capacitor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the sensing capacitor based on the conductive coating, which effectively solves the problem that the sensing capacitor cannot be bent, and the problem that the utilization rate of components is low due to the binding of a data sampling processing module and the sensing capacitor in a non-contact capacitive liquid level sensor. To achieve the above objects and other advantages in accordance with the present invention, there is provided a conductive paint-based inductive capacitor, including:
the flexible substrate, be provided with first electrode on the flexible substrate with the second electrode, first electrode with the second electrode sets up relatively, a flexible substrate terminal surface facing has the piece of pasting, another terminal surface facing have first electrode with the second electrode, first electrode with the second electrode all is connected with electrically conductive interface.
Preferably, the flexible substrate is coated with conductive coating, a spacing groove is formed in the conductive coating along a diagonal line, the conductive coating forms a first electrode and a second electrode, the first electrode and the second electrode are right-angled triangles, and the bevel edge of the first electrode is opposite to the bevel edge of the second electrode and is arranged at intervals.
Preferably, the conductive interface is connected with a data acquisition and processing module.
Preferably, the conductive coating is conductive graphite or conductive adhesive.
Preferably, the flexible substrate is planar or arc-shaped.
Compared with the prior art, the invention has the beneficial effects that:
(1) the flexible substrate in the induction capacitor has bending and sticking properties, so that the problems that the induction capacitor of the non-contact capacitance type liquid level sensor on the market cannot be bent and cannot be completely attached to the wall of a cylindrical pipe are well solved.
(2) A conductive interface is connected with a first electrode and a second electrode in the sensing capacitor, so that the problem of low utilization rate caused by binding of a data sampling processing module of the non-contact capacitance type liquid level sensor and the sensing capacitor is solved.
Drawings
FIG. 1 is a schematic three-dimensional structure of a sensing capacitor for a non-contact capacitive level sensor according to the present invention;
fig. 2 is a three-dimensional structure diagram of a data acquisition processing module for a non-contact capacitance type liquid level sensor according to the invention.
In the figure: 1. a first electrode; 2. a second electrode; 3. a flexible substrate; 4. a conductive interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an inductive capacitor based on conductive paint includes: the flexible substrate 3, be provided with first electrode 1 on the flexible substrate 3 with second electrode 2, first electrode 1 with second electrode 2 sets up relatively, 3 terminal surfaces of flexible substrate are pasted to have a piece of pasting, another terminal surfaces are pasted to have first electrode 1 with second electrode 2, first electrode 1 with second electrode 2 all is connected with electrically conductive interface 4, can make this induction capacitance attach on being detected the outer wall of thing, realizes closely laminating. In addition, the use of a bondable material widens the application environment of the non-contact capacitive liquid level sensor of the present invention.
Further, the flexible substrate 3 is coated with a conductive coating, a spacing groove is formed in the conductive coating along a diagonal line, and the conductive coating forms the first electrode 1 and the second electrode 2.
Furthermore, the first electrode 1 and the second electrode 2 are right-angled triangles, and the hypotenuse of the first electrode 1 is opposite to the hypotenuse of the second electrode 2 and is arranged at intervals.
Furthermore, the conductive interface 4 is connected with a data acquisition and processing module, and is connected with the data acquisition and processing module through the induction capacitor, so that if damage occurs in the using process, the parts can be replaced without integrally replacing the non-contact capacitive liquid level sensor, and the using efficiency of the non-contact capacitive liquid level sensor is greatly improved.
Further, the conductive coating is conductive graphite or conductive adhesive, and the flexible substrate 3 is planar or arc-shaped, so that the induction capacitor can be bent and deformed to a certain extent and can be better attached to the outer wall of an arc-shaped or irregular measured object.
The number of devices and the scale of the processes described herein are intended to simplify the description of the invention, and applications, modifications and variations of the invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. An inductive capacitor based on conductive paint, comprising:
flexible substrate (3), be provided with on flexible substrate (3) first electrode (1) with second electrode (2), first electrode (1) with second electrode (2) set up relatively, it has the piece of pasting to paste on flexible substrate (3) terminal surface, another terminal surface paste have first electrode (1) with second electrode (2), first electrode (1) with second electrode (2) all are connected with electrically conductive interface (4).
2. The conductive paint-based sensing capacitor as claimed in claim 1, wherein the flexible substrate (3) is coated with a conductive paint, the conductive paint is provided with a spacing groove along a diagonal line, and the conductive paint forms the first electrode (1) and the second electrode (2).
3. The inductive capacitor based on conductive paint as claimed in claim 1, wherein the first electrode (1) and the second electrode (2) are right triangle, and the hypotenuse of the first electrode (1) is opposite to and spaced from the hypotenuse of the second electrode (2).
4. The inductive capacitor based on conductive paint as claimed in claim 1, characterized in that the conductive interface (4) is connected with a data acquisition and processing module.
5. The inductive capacitor based on conductive paint as claimed in claim 2, wherein the conductive paint is conductive graphite or conductive glue.
6. The inductive capacitor based on conductive paint as claimed in claim 1, characterized in that the flexible substrate (3) is planar or arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291664.XA CN112268597A (en) | 2020-11-18 | 2020-11-18 | Induction capacitor based on conductive coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291664.XA CN112268597A (en) | 2020-11-18 | 2020-11-18 | Induction capacitor based on conductive coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112268597A true CN112268597A (en) | 2021-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011291664.XA Pending CN112268597A (en) | 2020-11-18 | 2020-11-18 | Induction capacitor based on conductive coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112268597A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6490920B1 (en) * | 1997-08-25 | 2002-12-10 | Millennium Sensors Ltd. | Compensated capacitive liquid level sensor |
| CN101847514A (en) * | 2010-03-23 | 2010-09-29 | 集盛星泰(北京)科技有限公司 | Activated carbon electrode and super capacitor with the same |
| CN103232799A (en) * | 2013-05-16 | 2013-08-07 | 佩特化工(上海)有限公司 | Conductive coating for electrode of capacitive inductor of intelligent touch screen and preparation method |
| JP2013167651A (en) * | 2013-06-06 | 2013-08-29 | Kameoka Denshi Kk | Capacitance type liquid surface level sensor |
| CN105025809A (en) * | 2013-03-15 | 2015-11-04 | C·R·巴德股份有限公司 | Urine monitoring systems and methods |
| CN205748545U (en) * | 2016-05-11 | 2016-11-30 | 深圳市星科创科技有限公司 | A kind of external labeling type pipeline liquid level sensor |
| CN107787233A (en) * | 2015-04-16 | 2018-03-09 | 赛诺菲-安万特德国有限公司 | For determining the sensor and sensor cluster of fill level by capacitance method |
| CN210664659U (en) * | 2019-10-01 | 2020-06-02 | 深圳市知晟国际供应链有限公司 | Non-contact flexible capacitance liquid level sensor |
| CN111595413A (en) * | 2020-06-23 | 2020-08-28 | 桂林电子科技大学信息科技学院 | Non-contact type container liquid level measuring device and method |
| CN211756148U (en) * | 2019-12-31 | 2020-10-27 | 上海理工大学 | Automatic atomizing and lubricating device for gynecological instrument based on Arduino |
| CN213932733U (en) * | 2020-11-18 | 2021-08-10 | 上海理工大学 | Induction capacitor based on conductive coating |
-
2020
- 2020-11-18 CN CN202011291664.XA patent/CN112268597A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6490920B1 (en) * | 1997-08-25 | 2002-12-10 | Millennium Sensors Ltd. | Compensated capacitive liquid level sensor |
| CN101847514A (en) * | 2010-03-23 | 2010-09-29 | 集盛星泰(北京)科技有限公司 | Activated carbon electrode and super capacitor with the same |
| CN105025809A (en) * | 2013-03-15 | 2015-11-04 | C·R·巴德股份有限公司 | Urine monitoring systems and methods |
| CN103232799A (en) * | 2013-05-16 | 2013-08-07 | 佩特化工(上海)有限公司 | Conductive coating for electrode of capacitive inductor of intelligent touch screen and preparation method |
| JP2013167651A (en) * | 2013-06-06 | 2013-08-29 | Kameoka Denshi Kk | Capacitance type liquid surface level sensor |
| CN107787233A (en) * | 2015-04-16 | 2018-03-09 | 赛诺菲-安万特德国有限公司 | For determining the sensor and sensor cluster of fill level by capacitance method |
| CN205748545U (en) * | 2016-05-11 | 2016-11-30 | 深圳市星科创科技有限公司 | A kind of external labeling type pipeline liquid level sensor |
| CN210664659U (en) * | 2019-10-01 | 2020-06-02 | 深圳市知晟国际供应链有限公司 | Non-contact flexible capacitance liquid level sensor |
| CN211756148U (en) * | 2019-12-31 | 2020-10-27 | 上海理工大学 | Automatic atomizing and lubricating device for gynecological instrument based on Arduino |
| CN111595413A (en) * | 2020-06-23 | 2020-08-28 | 桂林电子科技大学信息科技学院 | Non-contact type container liquid level measuring device and method |
| CN213932733U (en) * | 2020-11-18 | 2021-08-10 | 上海理工大学 | Induction capacitor based on conductive coating |
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