CN204575095U - A kind of capacitive transducer with shield assembly - Google Patents
A kind of capacitive transducer with shield assembly Download PDFInfo
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- CN204575095U CN204575095U CN201520298610.4U CN201520298610U CN204575095U CN 204575095 U CN204575095 U CN 204575095U CN 201520298610 U CN201520298610 U CN 201520298610U CN 204575095 U CN204575095 U CN 204575095U
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- pcb
- circuit board
- printed circuit
- electrode
- capacitive transducer
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Abstract
The utility model relates to a kind of capacitive transducer with shield assembly, include circular printed circuit board (PCB), the front of described printed circuit board (PCB) is provided with circular electrode, the periphery of described circular electrode is also provided with one and the concentric circular ring electrode of circular electrode, the back side and the side of described printed circuit board (PCB) are equipped with metal level, described metal level is connected to the ground, the utility model can mask the external interference from side and the back side, electric capacity is allowed only to respond to information from front, capacitance electrode mode and shielding mode are by the form of this printed circuit board (PCB), be simplified, substantially increase the production efficiency of sensor device, reduce production cost, improve production efficiency.
Description
Technical field
The utility model relates to field of electrical components, particularly be a kind of capacitive transducer with shield assembly.
Background technology
Along with the fast development of modern industry, industrial automation has more and more been applied in actual production.At present in a lot of pharmaceutical factory, brewery, chemical plant etc., need to accomplish monitoring and real-time inspection in real time to liquid level, material level, if allow people do these work, both consumed a large amount of human resources, and easily made mistakes.Use capacitive transducer can conveniently accomplish real-time monitoring, and the data of monitoring can be sent in automation equipment in time, people are broken away from constraint.
Utility model content
The purpose of this utility model is to use a kind of simple production method to realize shielding required for capacitive transducer and inductive head, a kind of capacitive transducer with shield assembly is proposed, when object near time, change the specific inductive capacity of electric capacity, and mask the interference at side and the back side by screen layer.
The utility model solves the technical scheme that its technical matters adopts: a kind of capacitive transducer with shield assembly, include circular printed circuit board (PCB), the front of described printed circuit board (PCB) is provided with circular electrode, the periphery of described circular electrode is also provided with one and the concentric circular ring electrode of circular electrode, the back side and the side of described printed circuit board (PCB) are equipped with metal level, and described metal level is connected to the ground.
Further, described circular electrode is located at the front center position of printed circuit board (PCB).
Further, described circular electrode is that circle is covered copper or is covered with other metal materials.
Further, described metal level is copper clad layers.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model can mask the external interference from side and the back side, electric capacity is allowed only to respond to information from front, capacitance electrode mode and shielding mode are by the form of this printed circuit board (PCB), be simplified, substantially increase the production efficiency of sensor device, reduce production cost, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is front view (FV) of the present utility model;
Fig. 2 is back view of the present utility model.
Embodiment
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
As depicted in figs. 1 and 2, a kind of capacitive transducer with shield assembly of the present utility model, include circular printed circuit board (PCB) 1, the front of described printed circuit board (PCB) 1 is provided with circular electrode 2, described circular electrode 2 is located at the front center position of printed circuit board (PCB) 1, the periphery of described circular electrode 2 is also provided with one and the concentric circular ring electrode 3 of circular electrode 2, described circular electrode 2 covers copper for circle or is covered with other metal materials, the back side and the side of described printed circuit board (PCB) 1 are equipped with copper clad layers 4, and described copper clad layers 4 is connected to the ground.
The utility model passes through to electrode pumping signal, by detecting the feedback signal of another electrode, carry out the change of Detection capacitance value, change and the specific inductive capacity of capacitance are proportional, and when an object is near electric capacity two electrode, the specific inductive capacity of electric capacity there occurs change, thus capacitance changes, by the change of capacitance, can detect that whether object is close, or the close distance of object has how many.
Above-describedly be only a preferred embodiment of the present utility model, the scope that the utility model is implemented can not be limited, every equalization change of doing according to the utility model claim and decoration, all should still belong in scope that the utility model contains.
Claims (4)
1. one kind has the capacitive transducer of shield assembly, it is characterized in that: include circular printed circuit board (PCB) (1), the front of described printed circuit board (PCB) (1) is provided with circular electrode (2), the periphery of described circular electrode (2) is also provided with one and circular electrode (2) concentric circular ring electrode (3), the back side of described printed circuit board (PCB) (1) and side are equipped with metal level (4), and described metal level (4) is connected to the ground.
2. a kind of capacitive transducer with shield assembly according to claim 1, is characterized in that: described circular electrode (2) is located at the front center position of printed circuit board (PCB) (1).
3. a kind of capacitive transducer with shield assembly according to claim 2, is characterized in that: described circular electrode (2) covers copper for circle or is covered with other metal materials.
4. a kind of capacitive transducer with shield assembly according to claim 1, is characterized in that: described metal level (4) is copper clad layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520298610.4U CN204575095U (en) | 2015-05-11 | 2015-05-11 | A kind of capacitive transducer with shield assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520298610.4U CN204575095U (en) | 2015-05-11 | 2015-05-11 | A kind of capacitive transducer with shield assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204575095U true CN204575095U (en) | 2015-08-19 |
Family
ID=53867717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520298610.4U Active CN204575095U (en) | 2015-05-11 | 2015-05-11 | A kind of capacitive transducer with shield assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204575095U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352565A (en) * | 2015-11-02 | 2016-02-24 | 智恒（厦门）微电子有限公司 | Differential-capacitor material level sensor |
| CN106774651A (en) * | 2016-11-30 | 2017-05-31 | 安徽华米信息科技有限公司 | Touch controlled key and wearable device |
| CN109716915A (en) * | 2017-10-30 | 2019-05-07 | 苏州宝时得电动工具有限公司 | Capacitance sensor and grass trimmer |
-
2015
- 2015-05-11 CN CN201520298610.4U patent/CN204575095U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352565A (en) * | 2015-11-02 | 2016-02-24 | 智恒（厦门）微电子有限公司 | Differential-capacitor material level sensor |
| CN105352565B (en) * | 2015-11-02 | 2024-05-07 | 智恒（厦门）微电子有限公司 | Differential capacitance level sensor |
| CN106774651A (en) * | 2016-11-30 | 2017-05-31 | 安徽华米信息科技有限公司 | Touch controlled key and wearable device |
| CN109716915A (en) * | 2017-10-30 | 2019-05-07 | 苏州宝时得电动工具有限公司 | Capacitance sensor and grass trimmer |
| CN109716915B (en) * | 2017-10-30 | 2021-01-05 | 苏州宝时得电动工具有限公司 | Capacitive sensor and lawn mower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Qingxing Inventor after: Gao Haitao Inventor after: Wu Qiang Inventor before: Xu Qingxing Inventor before: Gao Haitao Inventor before: Zheng Jianwei |
|
| COR | Change of bibliographic data |