CN105222702A - Three dimensionality resistance-type curved surface sensor - Google Patents
Three dimensionality resistance-type curved surface sensor Download PDFInfo
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- CN105222702A CN105222702A CN201510774611.6A CN201510774611A CN105222702A CN 105222702 A CN105222702 A CN 105222702A CN 201510774611 A CN201510774611 A CN 201510774611A CN 105222702 A CN105222702 A CN 105222702A
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- resistance
- overlay film
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- flexible pcb
- curved surface
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Abstract
The invention discloses a kind of three dimensionality resistance-type curved surface sensor, comprise a flexible PCB, the two sides of described flexible PCB has sticked at least one respectively and has contained carbonaceous conductive overlay film rubber, and each carbonaceous conductive overlay film rubber that contains is provided with two lead-in wires.Volume of the present invention is little, and thickness is thin, can respond to simultaneously, measure flexibly to the angle covering multiple position, determinand surface; Two sides due to each sensor flexible PCB has sticked containing carbonaceous conductive overlay film rubber respectively, have on surface multiple bending time, as surface be bent upwards simultaneously and be bent downwardly time, be bent upwards and can change with the resistance of the detecting unit at downward bent position place, voltage simultaneously, thus outer detecting circuit can detect the three-D profile being bent upwards and finally obtaining determinand with downward bent position place current and voltage data simultaneously, avoid existing curved surface sensor can only respond to flexibility deficiency when a surface exists and is bent upwards and is bent downwardly simultaneously.
Description
Technical field
The present invention relates to a kind of three dimensionality resistance-type curved surface sensor.
Background technology
Existing curved surface product sensor all adopts film substrate, and material therefor is plated film resistive element, but volume is large, and pliability is restricted, and curvature can only do obtuse angle, have in a face multiple bending time can only detect a flexibility, function ratio is more single.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of three dimensionality resistance-type curved surface sensor, to solve prior art Problems existing.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
Three dimensionality resistance-type curved surface sensor, comprises a flexible PCB, and the two sides of described flexible PCB has sticked at least one respectively and contained carbonaceous conductive overlay film rubber, and each carbonaceous conductive overlay film rubber that contains is provided with two lead-in wires.
Each length containing carbonaceous conductive overlay film rubber is 5-10 millimeter, and wide is 2 millimeters, and thick is 1 millimeter.
Relative to prior art, volume of the present invention is little, and thickness is thin, by the change of bending arrival resistance, each detecting unit (containing carbonaceous conductive overlay film rubber) can be responded to the angle covering multiple position, determinand surface simultaneously, measures flexibly; Two sides due to each sensor flexible PCB has sticked containing carbonaceous conductive overlay film rubber respectively, have on surface multiple bending time, as surface be bent upwards simultaneously and be bent downwardly time, be bent upwards and can change with the resistance of the detecting unit at downward bent position place, voltage simultaneously, thus outer detecting circuit can detect the three-D profile being bent upwards and finally obtaining determinand with downward bent position place current and voltage data simultaneously, avoid existing curved surface sensor can only respond to flexibility deficiency when a surface exists and is bent upwards and is bent downwardly simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 be of the present invention bending containing carbonaceous conductive overlay film rubber time the corresponding schematic diagram of flexibility and resistance value.
Fig. 3 is the corresponding schematic diagram of flexibility and resistance value when being bent upwards containing carbonaceous conductive overlay film rubber of the present invention.。
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The three dimensionality resistance-type curved surface sensor of the present embodiment, comprise a flexible PCB 2, the two sides of described flexible PCB 2 has sticked at least one respectively and has contained carbonaceous conductive overlay film rubber 1, can be 5 or more, each carbonaceous conductive overlay film rubber 1 is provided with two lead-in wires.Length containing carbonaceous conductive overlay film rubber 1 is 5-10 millimeter, and wide is 2 millimeters, and thick is 1 millimeter.
In conductive rubber makes, by mix carbon dust amount number can control the resistance sizes of conductive rubber, existing software algorithm generally can be utilized to determine to mix the ratio value of carbon dust.
Principle of work of the present invention:
Carbon containing conductive rubber 1 overlay film (plated film) is sticked on the two sides of flexible PCB 2, after flexible PCB 2 is bending, in conductive rubber 1, carbon molecule range distribution can change, intermolecular resistance can with the different regular change of angle of bend, after carbon containing conductive rubber 1 two ends are energized, the resistance that angle of bend difference presents is different, electric current also can along with changing, outer detecting circuit detects the current value of the resistance after its resistance variations or curent change, just can know the flexibility of flexible PCB 2, i.e. the flexibility on surface, position to be measured.
Such as one containing carbonaceous conductive overlay film rubber 1 as a detecting unit, when drafting bending, angle is 180 °, and resistance is 180K Ω, it bending 160 ° time be exactly 160K Ω, be exactly 120K Ω when bending 120 °, the like.If be bent upwards detecting unit, resistance can diminish, and with 180 ° time bending for cumulative radix, as often reduced 10K Ω, then corresponding angle value is 180 °+10 °=190 °, the like until 360 °; If be bent downwardly detecting unit, resistance becomes large, then subtract radix under with 180 ° being, as often reduced 10K Ω, then corresponding angle value is 180 °-10 °=170 °, the like until 0 °, thus realize the detection of 360 ° of angles.When the change of angle is understood, the resistance of detecting unit rubber changes, electric current after resistance variations can make detecting unit be energized changes, output end voltage also can change, outer detecting circuit can measure electric current (resistance) change of these detecting units with the velocity sweeping of tens of times per second, then form data by A/D convertor circuit and be transferred to computing machine, computing machine arranges out after the different line segment of respective curved degree connects according to testing result and forms three-dimensional picture, and above computer is prior art to the disposal route of testing result.
The present invention is covered on object under test, detects that it is each containing carbonaceous conductive overlay film rubber 1(detecting unit) the resistance of flexibility change or current value just can form space three-dimensional data, with software, data assemblies just can be obtained space 3D rendering data.Such as, detect the three-dimensional data of a pin, the present invention covered or be wrapped on pin, the outer detecting circuit successively each detecting unit of Scanning Detction bends the data of rear resistance variations formation, after carrying out process combination, namely obtains a foot well 3D effect figure.
Single detecting unit structure of the present invention is less, and arranging density is higher, and its detection resolution is higher, detects fineness higher.
Claims (2)
1. three dimensionality resistance-type curved surface sensor, is characterized in that: comprise a flexible PCB, and the two sides of described flexible PCB has sticked at least one respectively and contained carbonaceous conductive overlay film rubber, and each carbonaceous conductive overlay film rubber that contains is provided with two lead-in wires.
2. three dimensionality resistance-type curved surface sensor according to claim 1, is characterized in that: each length containing carbonaceous conductive overlay film rubber is 5-10 millimeter, and wide is 2 millimeters, and thick is 1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510774611.6A CN105222702A (en) | 2015-11-14 | 2015-11-14 | Three dimensionality resistance-type curved surface sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510774611.6A CN105222702A (en) | 2015-11-14 | 2015-11-14 | Three dimensionality resistance-type curved surface sensor |
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| Publication Number | Publication Date |
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| CN105222702A true CN105222702A (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510774611.6A Pending CN105222702A (en) | 2015-11-14 | 2015-11-14 | Three dimensionality resistance-type curved surface sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539972A (en) * | 2019-01-29 | 2019-03-29 | 重庆镭宝激光科技有限公司 | A kind of curvature measurement device of unidirectional curve surface work pieces |
| CN111780661A (en) * | 2020-07-22 | 2020-10-16 | 华中科技大学 | Method and system for accurately measuring bending strain of flexible electronic device |
| CN109585513B (en) * | 2018-12-06 | 2021-02-02 | 京东方科技集团股份有限公司 | Flexible display substrate, display device and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585513B (en) * | 2018-12-06 | 2021-02-02 | 京东方科技集团股份有限公司 | Flexible display substrate, display device and control method thereof |
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| CN111780661A (en) * | 2020-07-22 | 2020-10-16 | 华中科技大学 | Method and system for accurately measuring bending strain of flexible electronic device |
| CN111780661B (en) * | 2020-07-22 | 2021-10-08 | 华中科技大学 | Method and system for accurately measuring bending strain of flexible electronic device |
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Application publication date: 20160106 |
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