CN2874422Y - Capicitive displacement transducer suitable for small size large range measuring - Google Patents
Capicitive displacement transducer suitable for small size large range measuring Download PDFInfo
- Publication number
- CN2874422Y CN2874422Y CN 200620032999 CN200620032999U CN2874422Y CN 2874422 Y CN2874422 Y CN 2874422Y CN 200620032999 CN200620032999 CN 200620032999 CN 200620032999 U CN200620032999 U CN 200620032999U CN 2874422 Y CN2874422 Y CN 2874422Y
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- CN
- China
- Prior art keywords
- grid
- fixed
- fixed grid
- bar
- displacement transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The utility model discloses a capacitive-bar displacing sensor applicable for the measuring of small shape and large measuring range, which comprises a fixed-bar receiver and a sender as well as an active-bar reflector. The utility model is characterized in that: pitch of the active-bar reflector is smaller than or equal to that of the fixed-bar sender. Poles of the fixed-bar sender are scattered completely in accordance with the measuring range, and some of which couple with the active-bar reflector. Poles of the fixed-grid receiver are scattered completely in accordance with the measuring range as well. Without changing the dimensions of the present product, the utility model can expand one time of the product measuring range, so which is suitable for the measurement of products with small shape and large measuring range.
Description
Technical field:
This novel length measuring instrument that relates to, specifically a kind of capacitive displacement transducer that is suitable for little profile, large range measuring.
Background technology:
Existing capacitive displacement transducer, being of employing, fixed grid formula structure are provided with emitter and receiving pole on fixed grid, establish repeller on the moving grid.The repeller of moving grid in range, have only part simultaneously with fixed grid on emitter and receiving pole coupling.In the conditional occasion of contour structures, as the digital display scale, measurement range is subjected to bigger restriction, influences the applicability of product.
The utility model content:
The purpose of this utility model is in order to overcome existing capacitive displacement transducer when contour structures is limited, can't make the defective of large range measuring, not change the capacitive displacement transducer that original product physical dimension can make the twice suitable little profile large range measuring of product measurement range expansion and provide a kind of.
The purpose of this utility model adopts following technical scheme to realize:
Moving, the fixed grid formula structure of this novel also employing, comprise fixed grid receiving pole, fixed grid emitter, the moving grid repeller, the fixed grid drive signal line, unlike the prior art be: moving grid repeller pitch number is less than or equal to fixed grid emitter pitch number, fixed grid emitter number of poles is covered with by measurement range whole process, part while and the coupling of moving grid repeller; The fixed grid receiving pole also is covered with whole process, and in order to improve antijamming capability, the fixed grid receiving pole is provided with shield blade.
This is novel owing to adopted the new structure form of moving grid and part fixed grid generation coupling, therefore: under the situation of the physical dimension that does not change existing product, the product measurement range is expanded be twice, be particularly suitable for as the little profile of digital display scale, the occasion of large range measuring; In addition, adopt the capacitor grid transducer of distributed wiring also to be suitable for.
Description of drawings:
Fig. 1 is existing capacitive displacement transducer structural representation;
Fig. 2 is the utility model structural representation.
Embodiment:
Below in conjunction with drawings and Examples, structure of the present utility model is further elaborated:
With reference to Fig. 2, the utility model comprises: fixed grid receiving pole (1), fixed grid emitter (2), moving grid repeller (3), fixed grid drive signal line (4), moving grid repeller (3) pitch number be less than fixed grid emitter (2) pitch number, as be 5 pitches; It is 10 pitches that fixed grid emitter (2) is covered with by measurement range whole process, wherein 5 pitches while and moving grid repeller (3) coupling; Fixed grid receiving pole (1) also is covered with whole process.When every pitch length was 5.08mm, measurement range reached 25.4mm (1 inch), can be used as 1 inch scale sensor and used.
Claims (2)
1, a kind of capacitive displacement transducer of suitable little profile large range measuring, comprise fixed grid receiving pole (1), fixed grid emitter (2), moving grid repeller (3), fixed grid drive signal line (4), it is characterized in that: the pitch number of moving grid repeller (3) is less than or equal to the pitch number of fixed grid emitter (2), fixed grid emitter (2) number of poles is covered with whole process by measurement range, part while and moving grid repeller (3) coupling, fixed grid receiving pole (1) also is covered with whole process.
2, the capacitive displacement transducer of suitable little profile large range measuring according to claim 1 is characterized in that: on fixed grid receiving pole (1) shield blade can be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620032999 CN2874422Y (en) | 2006-01-26 | 2006-01-26 | Capicitive displacement transducer suitable for small size large range measuring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620032999 CN2874422Y (en) | 2006-01-26 | 2006-01-26 | Capicitive displacement transducer suitable for small size large range measuring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874422Y true CN2874422Y (en) | 2007-02-28 |
Family
ID=37781020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620032999 Expired - Lifetime CN2874422Y (en) | 2006-01-26 | 2006-01-26 | Capicitive displacement transducer suitable for small size large range measuring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874422Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8130003B2 (en) | 2007-01-04 | 2012-03-06 | Sheng Zhong | Capacitive sensor core with flexible hinge and sensor using the same |
| CN105796107A (en) * | 2016-05-25 | 2016-07-27 | 上海理工大学 | Intelligent appliance for measuring tissue thickness at high resolution factor |
-
2006
- 2006-01-26 CN CN 200620032999 patent/CN2874422Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8130003B2 (en) | 2007-01-04 | 2012-03-06 | Sheng Zhong | Capacitive sensor core with flexible hinge and sensor using the same |
| CN105796107A (en) * | 2016-05-25 | 2016-07-27 | 上海理工大学 | Intelligent appliance for measuring tissue thickness at high resolution factor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070228 |
|
| EXPY | Termination of patent right or utility model |