CN201477060U - Crack detection device based on conductive paint - Google Patents
Crack detection device based on conductive paint Download PDFInfo
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- CN201477060U CN201477060U CN2009202279165U CN200920227916U CN201477060U CN 201477060 U CN201477060 U CN 201477060U CN 2009202279165 U CN2009202279165 U CN 2009202279165U CN 200920227916 U CN200920227916 U CN 200920227916U CN 201477060 U CN201477060 U CN 201477060U
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Abstract
A crack detection device based on conductive paint comprises a conductive paint coating (1), conductive electrode slices (2), a conductive wire (3), a junction box (4), an information transmitter (5), a receiver (6) and an information display analyzer (7). The crack detection device is characterized in that a test position of a component to be tested is evenly covered with the conductive paint coating (1); the conductive electrode slices (2) are firmly attached to two ends of the conductive paint coating (1); one end of the conductive wire (3) is connected with the conductive electrode slices (2), while the other end thereof is inserted into the junction box (4) and communicated with the transmitter (5); and the information transmitter transmits information in wired and wireless manners respectively, so as to allow the receiver (6) of a control room to receive the information which is transmitted to the information display analyzer. The device can effectively detect and remotely monitor crack occurrence and propagation of the component, and has the advantages of low cost and convenient operation.
Description
Technical field
The utility model relates to the structure technology of large-sized concrete structure (Ru Qiao, beam) Crack Detection and prediction particularly, particularly a kind of Crack Detection device based on electrically-conducting paint.
Background technology
In bridge construction and use, relevant because of the common report of accident that the crack influences construction quality even causes bridge collapse occurring.How carrying out the monitoring of structural cracks, is that a research also needs the field that deepens continuously to the detection of some crucial structural members especially.Existing technology mainly is by manually in the buildings use, according to term of life and experience arrange personnel with visual check with after finding defective such as engineering cracks, adopt technology such as pasting foil gauge, rebound method, ultrasound wave, electromagnetic wave that respective members is detected, repairs, its greatest drawback is must be by the artificial defective of finding earlier, often not prompt enough, can not realize monitoring and warning.For heavy constructions such as the skyscraper of complexity, large bridge, tunnels, manually also be difficult for finding damaged, can stay serious potential safety hazard.
And just in the Fibre Optical Sensor monitoring technology of research and development, because the Fibre Optical Sensor volume is little, only can perception to the crack of sensor adjacent domain, can not realize " area monitoring " to the structure large area region, particularly the huge concrete structure cracking has time and position unpredictability, can not carry out the face area monitoring, and test leakage can take place, stay serious potential safety hazard, this is the main difficult point place of Crack Detection.USSR (Union of Soviet Socialist Republics) Sa Yangshushensike gravity dam, interior instrument reach 2500 more than, do not measure the large fracture of the 486m that the dam body bottom produces after retaining unexpectedly, up to this seam to the deep expand 20 surplus rice, cause that gallery leaks just to realize.Optic electric interface does not resemble the common electrical signaling interface and connects well in addition, easily is damaged, and the failure rate height is in case fracture can not continue monitoring.No matter be home or overseas at present, this problem all is one of obstacles that hinder Fibre Optical Sensor monitoring technology large-scale engineering applications
Summary of the invention
The purpose of this utility model just provide a kind of can be convenient, in time, detection, the monitoring means of structural cracks efficiently, particularly a kind of Crack Detection device based on electrically-conducting paint.
The compliant conductive dope layer that solidifies, its conduction are to be in contact with one another by conductive particle in the layer to form the path conduction.Electric conductivity for thickness uniform conductive coating strip is essentially identical.When member took place than small deformation, attached to the electrically-conducting paint generation compatible deformation of component surface, the conduction situation of coating both changed, and particularly: conductive particle is in contact with one another face and suitably reduces, and electric conductivity changes little; Conductive particle does not contact, but spacing less than certain " threshold value ", electronics can overcome " potential barrier " transition, forms path, it is big that resistance becomes; The conductive particle spacing is greater than contact " threshold value ", and non-conductive, resistance becomes infinity.This moment, the resistance value from macroscopic view electrically-conducting paint layer became big, and electric conductivity reduces.
If the crack occurs in any zone of dope layer, since local cracks occurs making the distance between the conductive particle of place, crack electrically-conducting paint to increase be far longer than under the normal deformation situation apart from added value, thereby a large amount of conductive particle distances appear greater than conduction " threshold value ", thereby before and after the appearance of crack, the transition of resistance can appear.Crack Detection technology based on electrically-conducting paint, its technical characterstic is at xoncrete structure tension external coating 1-2 rice strip electrically-conducting paint, lead is guided in the link box of bridge pier, carrying out utilizing specialized equipment to measure the resistance of strip electrically-conducting paint when bridge detects, by the variation identification xoncrete structure strain value of resistance value, the generation and the crack propagation degree in crack.
Experimental result shows, the elastic conduction coating can effectively be monitored the zone internal strain of concrete component face, cracking, crack development, inefficacy overall process, especially very sensitive to cracking, crack development with component failure, and the appearance in crack had memory function.Can be used for the TERM DEFORMATION monitoring under the repeated structure load action.
The technical solution of the utility model is: a kind of Crack Detection device based on electrically-conducting paint, it comprises: electrically-conducting paint coating (1), conductive electrode film (2), lead (3), terminal box (4), information transmitter (5), receiver (6), information display analysis instrument (7) is formed, it is characterized in that: electrically-conducting paint figure layer (1) covers the test position of member to be measured equably, firmly be pasted with conductive electrode film (2) at its two ends, lead (3) one ends link to each other with conductive electrode film (2), in the other end thereto (4), and with information transmitter (5) UNICOM, information transmitter is respectively with wired, wireless mode emits information, allows the receiver (6) of pulpit receive and imports information display analysis instrument into.
Above-mentioned a kind of Crack Detection device based on electrically-conducting paint is characterized in that: information transmitter (5), receiver (6) and information display analysis instrument (7) all can adopt commercially available finished product, in the information display analysis instrument (7) information analysis software are installed.
The beneficial effects of the utility model are: to member position to be detected, can realize that partial face detects and remote the detection, and cost is very low, practical.
Description of drawings
Fig. 1, the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Mark among Fig. 1 is: 1-electrically-conducting paint coating, 2-conductive electrode film, 3-lead, 4-terminal box, 5-information transmitter, 6-receiver, 7-information display analysis instrument.
With reference to accompanying drawing, select surveyed area in the component surface that needs detect, paste conductive electrode film, and the brushing electrically-conducting paint, with lead connection electrode sheet and terminal box, open information transmitter, allow its operate as normal, both can realize member under load action, the crack of member produces, the detection of development.
Claims (2)
1. Crack Detection device based on electrically-conducting paint, it comprises: electrically-conducting paint coating (1), conductive electrode film (2), lead (3), terminal box (4), information transmitter (5), receiver (6), information display analysis instrument (7) is formed, it is characterized in that: electrically-conducting paint figure layer (1) covers the test position of member to be measured equably, firmly be pasted with conductive electrode film (2) at its two ends, lead (3) one ends link to each other with conductive electrode film (2), in the other end thereto (4), and with information transmitter (5) UNICOM, information transmitter is respectively with wired, wireless mode emits information, allows the receiver (6) of pulpit receive and imports information display analysis instrument into.
2. according to the described a kind of Crack Detection device of claim 1, it is characterized in that: in the information display analysis instrument (7) information analysis software is installed based on electrically-conducting paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202279165U CN201477060U (en) | 2009-09-07 | 2009-09-07 | Crack detection device based on conductive paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202279165U CN201477060U (en) | 2009-09-07 | 2009-09-07 | Crack detection device based on conductive paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201477060U true CN201477060U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2009202279165U Expired - Fee Related CN201477060U (en) | 2009-09-07 | 2009-09-07 | Crack detection device based on conductive paint |
Country Status (1)
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| CN (1) | CN201477060U (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240218A (en) * | 2013-05-16 | 2013-08-14 | 于百勇 | Subway tunnel concrete crack monitoring element roll coating forming process based on flexible conductive coating |
| CN103334462A (en) * | 2013-07-22 | 2013-10-02 | 山东大学 | Conductive polymer-based soil deformation monitoring system and method |
| CN103363890A (en) * | 2013-07-22 | 2013-10-23 | 山东大学 | Pavement cracking monitoring method based on pulling sensitive effect of conducting polymers |
| CN103412007A (en) * | 2013-01-10 | 2013-11-27 | 哈尔滨飞机工业集团有限责任公司 | Method for monitoring fatigue crack |
| CN103901078A (en) * | 2014-04-04 | 2014-07-02 | 天津瑞唐涂装科技有限公司 | Detection method of teflon coating |
| CN104048591A (en) * | 2014-07-07 | 2014-09-17 | 重庆大学 | Carbon fiber yarn strain gage combination for measuring interior strain of early-stage concrete |
| CN105738567A (en) * | 2014-12-10 | 2016-07-06 | 中国飞机强度研究所 | Aluminum powder coating transducer and processing technology thereof |
| CN105957299A (en) * | 2016-06-07 | 2016-09-21 | 武汉理工大学 | Early warning apparatus and method for concrete cracking |
| CN108828199A (en) * | 2018-06-13 | 2018-11-16 | 陕西红柠铁路有限责任公司 | A method of concrete cracks are monitored using glass bar |
| CN109239138A (en) * | 2018-07-31 | 2019-01-18 | 同济大学 | A kind of detection method in concrete structural surface new life crack |
| CN109488691A (en) * | 2017-09-13 | 2019-03-19 | 舍弗勒技术股份两合公司 | The retainer and bearing unit of integrated coating sensor |
| CN110412092A (en) * | 2019-07-25 | 2019-11-05 | 中国地质大学（武汉） | A kind of detection system and method based on Review of Electrical Impedance Tomography |
| CN110865097A (en) * | 2019-10-23 | 2020-03-06 | 上海建工四建集团有限公司 | Sensor for monitoring surface layer falling and application method thereof |
| CN113189146A (en) * | 2021-04-16 | 2021-07-30 | 国网甘肃省电力公司经济技术研究院 | Device and method for monitoring ground fissure landslide by conductive concrete grounding network |
| DE102020119867A1 (en) | 2020-07-28 | 2022-02-03 | Karl Wörwag Lack- Und Farbenfabrik Gmbh & Co. Kg | Detection of occurring status changes |
| IT202100001385A1 (en) * | 2021-01-26 | 2022-07-26 | Gp2 S R L | SYSTEM AND METHOD FOR MONITORING AND/OR VERIFYING THE INTEGRITY OF A STRUCTURE OR MANUFACTURED |
-
2009
- 2009-09-07 CN CN2009202279165U patent/CN201477060U/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412007A (en) * | 2013-01-10 | 2013-11-27 | 哈尔滨飞机工业集团有限责任公司 | Method for monitoring fatigue crack |
| CN103240218A (en) * | 2013-05-16 | 2013-08-14 | 于百勇 | Subway tunnel concrete crack monitoring element roll coating forming process based on flexible conductive coating |
| CN103334462A (en) * | 2013-07-22 | 2013-10-02 | 山东大学 | Conductive polymer-based soil deformation monitoring system and method |
| CN103363890A (en) * | 2013-07-22 | 2013-10-23 | 山东大学 | Pavement cracking monitoring method based on pulling sensitive effect of conducting polymers |
| CN103334462B (en) * | 2013-07-22 | 2016-01-20 | 山东大学 | Based on soil deformation monitoring system and the method for conducting polymer |
| CN103363890B (en) * | 2013-07-22 | 2016-06-08 | 山东大学 | Pavement cracking monitoring method based on conducting polymer pulling sensitive effect |
| CN103901078A (en) * | 2014-04-04 | 2014-07-02 | 天津瑞唐涂装科技有限公司 | Detection method of teflon coating |
| CN103901078B (en) * | 2014-04-04 | 2016-05-25 | 天津瑞唐涂装科技有限公司 | The detection method of Teflon coating |
| CN104048591A (en) * | 2014-07-07 | 2014-09-17 | 重庆大学 | Carbon fiber yarn strain gage combination for measuring interior strain of early-stage concrete |
| CN105738567A (en) * | 2014-12-10 | 2016-07-06 | 中国飞机强度研究所 | Aluminum powder coating transducer and processing technology thereof |
| CN105957299A (en) * | 2016-06-07 | 2016-09-21 | 武汉理工大学 | Early warning apparatus and method for concrete cracking |
| CN109488691A (en) * | 2017-09-13 | 2019-03-19 | 舍弗勒技术股份两合公司 | The retainer and bearing unit of integrated coating sensor |
| CN109488691B (en) * | 2017-09-13 | 2022-02-01 | 舍弗勒技术股份两合公司 | Cage and bearing unit of integrated coating sensor |
| CN108828199A (en) * | 2018-06-13 | 2018-11-16 | 陕西红柠铁路有限责任公司 | A method of concrete cracks are monitored using glass bar |
| CN109239138A (en) * | 2018-07-31 | 2019-01-18 | 同济大学 | A kind of detection method in concrete structural surface new life crack |
| CN110412092A (en) * | 2019-07-25 | 2019-11-05 | 中国地质大学（武汉） | A kind of detection system and method based on Review of Electrical Impedance Tomography |
| CN110865097A (en) * | 2019-10-23 | 2020-03-06 | 上海建工四建集团有限公司 | Sensor for monitoring surface layer falling and application method thereof |
| DE102020119867A1 (en) | 2020-07-28 | 2022-02-03 | Karl Wörwag Lack- Und Farbenfabrik Gmbh & Co. Kg | Detection of occurring status changes |
| IT202100001385A1 (en) * | 2021-01-26 | 2022-07-26 | Gp2 S R L | SYSTEM AND METHOD FOR MONITORING AND/OR VERIFYING THE INTEGRITY OF A STRUCTURE OR MANUFACTURED |
| WO2022162547A1 (en) * | 2021-01-26 | 2022-08-04 | Gp2 S.R.L. | System and method for monitoring and/or verifying the integrity of a structure or object |
| CN113189146A (en) * | 2021-04-16 | 2021-07-30 | 国网甘肃省电力公司经济技术研究院 | Device and method for monitoring ground fissure landslide by conductive concrete grounding network |
| CN113189146B (en) * | 2021-04-16 | 2024-05-28 | 国网甘肃省电力公司经济技术研究院 | Device and method for monitoring ground crack landslide through conductive concrete grounding grid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20100907 |