CN213932734U - Induction capacitor of liquid level sensor based on flexible substrate - Google Patents
Induction capacitor of liquid level sensor based on flexible substrate Download PDFInfo
- Publication number
- CN213932734U CN213932734U CN202022669068.2U CN202022669068U CN213932734U CN 213932734 U CN213932734 U CN 213932734U CN 202022669068 U CN202022669068 U CN 202022669068U CN 213932734 U CN213932734 U CN 213932734U
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- installing zone
- electrode
- liquid level
- substrate layer
- flexible substrate
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- 239000000758 substrate Substances 0.000 title claims abstract description 26
- 239000003990 capacitor Substances 0.000 title claims description 11
- 239000007788 liquid Substances 0.000 title abstract description 16
- 230000006698 induction Effects 0.000 title abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 230000001939 inductive effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a level sensor's induction capacitance based on flexible substrate, include: the electrode layer comprises a substrate layer, first installing zone and second installing zone have been seted up on the substrate layer, first installing zone with the interval of second installing zone sets up, and equal rigid coupling has the electrode layer in first installing zone and the second installing zone, the first electrode of electrode level in the first installing zone, the electrode layer in the second installing zone is the second electrode. According to the utility model discloses, widen liquid level detection's non-contact capacitance sensor's application scope, promote the reliability of measuring, and closely laminate with the measured object outer wall.
Description
Technical Field
The utility model relates to a technical field of induction capacitance, in particular to level sensor's induction capacitance based on flexible substrate.
Background
A non-contact capacitive sensor for level detection arranges the electric capacity polar plate on the plane PCB board of stereoplasm mostly, need guarantee during the use that induction capacitance closely laminates at the container outer wall that awaits measuring, however the stock solution container among the practical application is arc face shapes such as the cylinder of often becoming, circular cone, this moment, non-contact level sensor that the stereoplasm PCB board was made is difficult to closely laminate with the outer wall of stock solution container, this makes non-contact capacitive sensor receive the limitation with application scene on the accuracy of detection container liquid level.
SUMMERY OF THE UTILITY MODEL
Weak point to exist among the prior art, the utility model aims at providing a liquid level sensor's induction capacitance based on flexible base plate widens liquid level detection's non-contact capacitance sensor's application scope, promotes the reliability of measuring, and closely laminates with the testee outer wall. In order to realize the above objects and other advantages according to the present invention, there is provided an inductive capacitor of a liquid level sensor based on a flexible substrate, comprising:
the electrode layer comprises a substrate layer, first installing zone and second installing zone have been seted up on the substrate layer, first installing zone with the interval of second installing zone sets up, and equal rigid coupling has the electrode layer in first installing zone and the second installing zone, the first electrode of electrode level in the first installing zone, the electrode layer in the second installing zone is the second electrode.
Preferably, the first installation area and the second installation area are both right-angled triangles, and the hypotenuse of the first installation area is opposite to the hypotenuse of the second installation area.
Preferably, the substrate layer is a flexible plate.
Preferably, the shape of the substrate layer is planar or arc-shaped.
Compared with the prior art, the utility model, its beneficial effect is: and arranging the first electrode and the second electrode of the capacitor on a flexible substrate layer, and replacing the original rigid plate with the flexible substrate layer. According to the characteristics of the substrate layer, the problems that the rigid plate cannot be completely attached to the outer wall of the detection device and the like are well solved, the detection precision is guaranteed, the liquid level capacitive sensor has a wider detection range, the coplanar non-contact capacitive sensor manufactured through the substrate layer has the characteristics of small size and light weight, the mounting and the dismounting are convenient, and the manufacturing cost of production is reduced.
Drawings
Fig. 1 is a front view of an inductive capacitance for a contactless liquid level capacitive sensor according to the present invention;
fig. 2 is a schematic diagram of a three-dimensional structure of an inductive capacitor for a non-contact capacitive liquid level sensor according to the present invention.
In the figure: 1. a substrate layer; 2. a first electrode; 3. a second electrode.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, an inductive capacitance of a flexible substrate based level sensor includes: substrate layer 11, first installing zone and second installing zone have been seted up on substrate layer 1, first installing zone with the second installing zone interval sets up, and equal rigid coupling has the electrode layer in first installing zone and the second installing zone, the first electrode of electrode level 2 in the first installing zone, the electrode layer in the second installing zone is second electrode 3, substrate layer 1 is flexible panel, can closely laminate completely in square, the circular arc shape waits for to survey the container outer wall to the change of liquid level in the response container wall avoids causing the pollution or corrosion sensor scheduling problem with the liquid contact in the container, can the real-time liquid level state in the nonmetal airtight container of accurate measurement, can wide application in liquid level on-line monitoring field.
Further, first installing zone and second installing zone are right triangle, the hypotenuse of first installing zone with the second installing zone hypotenuse sets up relatively, forms two electrodes like this and can connect in electrically conductive interface, is connected with the ware original paper through electrically conductive interface, also conveniently changes when damaging, and need not wholly change, has improved this non-contact's liquid level capacitance sensor rate of utilization.
Furthermore, the defect that a capacitor plate is arranged on a hard planar PCB to lead the capacitor to be bent and attached to the outer wall of the container to be tested is eliminated, two electrode plates of the capacitor are designed on the same plane of the flexible circuit board, and a circuit conversion module which generates different capacitance values to pass through according to the change of solution in a tested area is converted into a change value of a corresponding liquid level.
Further, the shape of substrate layer 1 is plane or arc form, replaces original rigid plate with flexible panel, utilizes its high compliance, strengthens the equipment of three-dimensional space in limited space, realizes the integration of components and parts assembly and wire connection. In the design and processing process, because the welding points are reduced, the number of connectors is reduced, and the failure occurrence rate and the production cost are reduced. In installation and use, can freely bend, coil so that closely laminate the container outer wall that awaits measuring, solved the unable crooked problem in order to laminate in cylindrical container wall of induction capacitance that the rigid plate spread conductive metal and make, improve the credibility of product, effectively reduce product volume and weight simultaneously, increase convenience and the reuse nature in carrying and the use.
The number of devices and the scale of the processes described herein are intended to simplify the description of the present invention, and applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (4)
1. An inductive capacitance of a flexible substrate based level sensor, comprising:
the electrode layer comprises a substrate layer, first installing zone and second installing zone have been seted up on the substrate layer, first installing zone with the interval of second installing zone sets up, and equal rigid coupling has the electrode layer in first installing zone and the second installing zone, the first electrode of electrode level in the first installing zone, the electrode layer in the second installing zone is the second electrode.
2. The sensor capacitor of claim 1, wherein the first mounting region and the second mounting region are each a right triangle, and the oblique side of the first mounting region is opposite to the oblique side of the second mounting region.
3. The sensor capacitor of claim 1, wherein the substrate layer is a flexible sheet.
4. The sensor capacitor of claim 1, wherein the substrate layer is planar or arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022669068.2U CN213932734U (en) | 2020-11-18 | 2020-11-18 | Induction capacitor of liquid level sensor based on flexible substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022669068.2U CN213932734U (en) | 2020-11-18 | 2020-11-18 | Induction capacitor of liquid level sensor based on flexible substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213932734U true CN213932734U (en) | 2021-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022669068.2U Expired - Fee Related CN213932734U (en) | 2020-11-18 | 2020-11-18 | Induction capacitor of liquid level sensor based on flexible substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213932734U (en) |
-
2020
- 2020-11-18 CN CN202022669068.2U patent/CN213932734U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210810 |