CN106596391A - On-line monitoring sensing probe for corrosion protection of aircraft structure coating - Google Patents
On-line monitoring sensing probe for corrosion protection of aircraft structure coating Download PDFInfo
- Publication number
- CN106596391A CN106596391A CN201611112099.XA CN201611112099A CN106596391A CN 106596391 A CN106596391 A CN 106596391A CN 201611112099 A CN201611112099 A CN 201611112099A CN 106596391 A CN106596391 A CN 106596391A
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- Prior art keywords
- monitoring
- hat
- aircraft
- coating
- corrosion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/04—Corrosion probes
Abstract
The invention provides an on-line monitoring sensing probe for corrosion protection of an aircraft structure coating. The on-line monitoring sensing probe comprises a hat-shaped substrate, an anticorrosion coating, monitoring probes, a sealant and connecting wires, wherein the hat-shaped substrate is made of the same material as an aircraft monitoring part; two embedding holes are formed in the top surface of the hat of the hat-shaped substrate; the two monitoring probes are inserted into the embedding holes respectively to constitute a two-point electrode; the anticorrosion coating is the same as an anticorrosion coating applied to the aircraft monitoring part and is applied to the top surface of the hat and the surfaces of the monitoring probes; the connecting wires connect the monitoring probes; the hat of the hat-shaped substrate is filled with the sealant. The on-line monitoring sensing probe performs on-line monitoring by monitoring the coating state of an aircraft structure on the basis of the corrosion monitoring principle of electrochemical impedance, monitors and assesses the effectiveness of a coating system in a service environment in an air thin liquid film state, and provides important technical support for study of corrosion environment characteristics, anticorrosion design of structures, use and maintenance, corrosion damage evaluation and prediction.
Description
Technical field
The present invention relates to aircaft configuration coating health monitoring technical field, specially a kind of aircaft configuration coating antiseptic erosion exists
Line monitors sensor probe.
Background technology
Aircraft is experienced by high/low temperature, damp and hot, salt fog, illumination, chemical contamination, sleet, greasy weather when coastal area uses
And the effect of the exceedingly odious marine environment such as sea water sputtering, easily cause its housing construction, system, electronic equipment and into adnexa
Corrosion, have a strong impact on the structural intergrity and feature of aircraft, in order to slow down and control corrosion rate, need to corrode aircraft
Monitoring and maintenance.The Corrosion Maintenance of conventional airplane frequently with periodic maintenance method, mainly according to being formulated most using experience
Good detection time and corrosion protection is keeped in repair, and method for maintaining is monitored and formulated to the corrosion damage for aircaft configuration coating, its master
Drawback is wanted to be the too early and hysteresis that maintenance engineering occurs, premature maintenance can cause the huge of manpower and materials and time cost
Waste greatly, while the usage cycles of equipment and facility are reduced, and the further deterioration of delayed meeting causing corrosion situation, not in time
Maintenance then can more reduce service life, safety and the reliability of aircraft.Corrosion condition maintenarnce strategy is introduced accordingly, the strategy
Successful implementation depends on the corrosion real time on-line monitoring sensor probe of advanced technology, dependable performance, provides for condition maintenarnce
With reference to it is determined that optimal maintenance time and maintenance program, it is to avoid the drawbacks of keeping in repair too early and keep in repair delayed.
In recent years, corrosion monitoring technology seems more and more important with the increase of aircraft maintenance expense, and American-European countries is to applying
The sensor-based system of layer corrosion monitoring technology has carried out substantial amounts of research, has succeeded in developing new coating on-line corrosion monitoring sensing and has visited
Head simultaneously realizes the engineer applied on aircraft, but its technology is to domestic secrecy；It is domestic to be based on acoustic emission, the corrosion of optical-fibre theory
Sensor aspect has carried out a large amount of principles and confirmatory study, and above-mentioned technology is mainly based upon stress or strain to the monitoring corroded
Corrosion monitoring, it is impossible to realize the corrosion monitoring of aircaft configuration early stage.
The content of the invention
To solve the problems, such as prior art, aircraft life. cycle phase inner structure coating corrosion Damage detection is realized,
The present invention proposes a kind of aircaft configuration coating antiseptic erosion on-line monitoring sensor probe, used as important with what is safeguarded for condition maintenarnce
Technological means.Corrosion monitoring principle of the probe based on electrochemical impedance, is carried out by monitoring the coating state of aircaft configuration
Line is monitored, and monitoring evaluation coating system effectiveness under arms under environment, is corrosive environment characteristic under air thin liquid film state
Research, the assessment of structure design against corrosion, use and maintenance, corrosion damage and prediction provide important technology and support, and are to ensure aircraft knot
Structure durability, damage tolerance quality and the important handss using safety, service life, continuing airworthiness ability, maintenance and maintenance cost
Section.Reference can be provided for condition maintenarnce by the probe, determine therefrom that optimal maintenance time and maintenance program.
The technical scheme is that：
A kind of aircaft configuration coating antiseptic erosion on-line monitoring sensor probe, it is characterised in that：Including hat matrix, prevent
Corrosion resistant coating, monitoring probe, hole sealing agent and connecting wire；
The hat basic material is identical with aircraft monitoring position material；The hat matrix cap body top surface is provided with two and buries
Enter hole；
Two monitoring probes are inserted respectively in two embedment holes of hat matrix cap body top surface, constitute two point electrodes；
Monitoring probe material is identical with hat matrix material；Adopting between monitoring probe and hat shape pedestal has quarantine measures；
The erosion shield that the erosion shield monitors position coating with aircraft is identical；The erosion shield is coated in
The cap body top surface and monitoring detecting head surface of hat matrix；
The connecting wire connects monitoring probe, plays connection electric action；
The hole sealing agent is filled in the cap body of hat matrix, plays sealing of hole isolation and fixed wire effect.
A kind of further preferred version, aircaft configuration coating antiseptic erosion on-line monitoring sensor probe, its feature exists
In：The hole sealing agent adopts epoxy resin.
A kind of further preferred version, aircaft configuration coating antiseptic erosion on-line monitoring sensor probe, its feature exists
In：When aircraft monitoring position is designed with monitoring preformed hole, the hat base shape reserves hole shape with aircraft monitoring position
Unanimously；When monitoring preformed hole is not designed at aircraft monitoring position, the hat matrix is attached to aircraft monitoring position.
Beneficial effect
Aircaft configuration coating antiseptic erosion on-line monitoring sensor probe proposed by the present invention passes through electrochemical electronic components and parts mould
Circuit-mode is intended to be, the electrochemical properties such as the resistance of corrosion-resistant coating are tested out according to electrochemical principle, corrosion-resistant coating is characterized with this
Performance.Its major advantage is as follows：(1) with body metal structure and coating directly contact, but need not employ when monitoring
With body metal structure and its face coat identical material, the aging of body surface coating and failure shape are reflected indirectly
Condition.(2) electrolyte solution is not needed during probe monitors.(3) probe electrode is located at coating and metal body interface, can be exactly
Monitoring coating and the performance change of metal body interface, so as to accurately be evaluated to the corrosion failure situation of coating.(4)
Impedance and the phase angle of coating are measured using the single-frequency of 1000Hz by sensing system, measurement data is simply easy to point
Analysis.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment
It is substantially and easy to understand, wherein：
Fig. 1 is aircaft configuration coating antiseptic erosion on-line monitoring sensor probe schematic diagram；
Fig. 2 is corrosion monitoring sensor probe corrosion inhibiter validation verification result figure；
Wherein：1 is hat matrix；2 is erosion shield；3 is monitoring probe；4 is hole sealing agent；5 is connecting wire.
Specific embodiment
Embodiments of the invention are described below in detail, the embodiment is exemplary, it is intended to for explaining the present invention, and
It is not considered as limiting the invention.
The present invention proposes a kind of aircaft configuration coating antiseptic erosion on-line monitoring sensor probe, used as condition maintenarnce and dimension
The important technical of shield, realizes aircraft life. cycle phase inner structure coating corrosion Damage detection.The probe is based on electrochemistry
The corrosion monitoring principle of impedance, is monitored on-line, under air thin liquid film state by monitoring the coating state of aircaft configuration
Monitoring evaluation coating system effectiveness under arms under environment is corrosive environment characteristic research, structure design against corrosion, using dimension
Repair, corrosion damage assessment and prediction provide important technology and support, and are to ensure Airplane Structure Durability, damage tolerance quality and use
The important means of safety, service life, continuing airworthiness ability, maintenance and maintenance cost.Can be condition maintenarnce by the probe
Reference is provided, optimal maintenance time and maintenance program is determined therefrom that.
As shown in figure 1, the aircaft configuration coating antiseptic erosion on-line monitoring sensor probe, including hat matrix, anticorrosion painting
Layer, monitoring probe, hole sealing agent and connecting wire.
The hat base shape is consistent with the reserved hole shape in aircraft monitoring position, and cap body is the circular base of diameter 32mm
Seat, hat matrix cap body top surface is provided with the embedment hole of two a diameter of 1.3mm；Hat basic material monitors position material with aircraft
It is identical.
Two monitoring probes are inserted respectively in two embedment holes of hat matrix cap body top surface, constitute two point electrodes；
Monitoring probe material is identical with hat matrix material；Adopting between monitoring probe and hat shape pedestal has quarantine measures.
The erosion shield that the erosion shield monitors position coating with aircraft is identical, by two sides priming paint and finish paint group
Into the degree of aging of its face coat reflects the etch state such as the aging of airframe face coat and failure；The anti-corrosion
Erosion resisting coating is coated in the cap body top surface of hat matrix and monitoring detecting head surface.
The connecting wire connects monitoring probe, and material is copper core cable wire, plays connection electric action.
The hole sealing agent is filled in the cap body of hat matrix, and material is epoxy resin, plays sealing of hole isolation and fixed wire
Effect.
The basic role principle of this aircaft configuration coating antiseptic erosion on-line monitoring sensor probe：Coating corrosion monitoring probe base
In electrochemical AC impedance ultimate principle, coating is coated in into monitoring detecting head surface, different frequency is applied to corrosion-resistant coating system
Pumping signal, when face coat occur corrosion damage, surface layer aggregation thin liquid film conduction electrode circuit, electric charge occur transfer be
Can indirectly testing resistance variations, so as to reach monitoring purpose.
The present embodiment carries out verification experimental verification according to above-mentioned probe designs：Corrosion inhibiter effectiveness is carried out using above-mentioned design probe
Checking, respectively from dura mater corrosion inhibiter and mantle corrosion inhibiter, Fig. 2 is that on-line corrosion monitoring probe corrosion inhibiter checking is real to corrosion inhibiter
Example.As a result show coating dura mater corrosion inhibiter effect duration it is longer than mantle corrosion inhibiter effect duration, represent the probe can Efficient Characterization prevent
The performance of corrosion layer, as a result also complies with inhibition agent material performance indications of itself.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is in the principle and objective without departing from the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (3)
1. sensor probe is monitored in a kind of aircaft configuration coating antiseptic erosion on-line, it is characterised in that：Apply including hat matrix, anticorrosion
Layer, monitoring probe, hole sealing agent and connecting wire；
The hat basic material is identical with aircraft monitoring position material；The hat matrix cap body top surface is provided with two embedments
Hole；
Two monitoring probes are inserted respectively in two embedment holes of hat matrix cap body top surface, constitute two point electrodes；Monitoring
Probe material is identical with hat matrix material；Adopting between monitoring probe and hat shape pedestal has quarantine measures；
The erosion shield that the erosion shield monitors position coating with aircraft is identical；The erosion shield is coated in hat
The cap body top surface and monitoring detecting head surface of matrix；
The connecting wire connects monitoring probe, plays connection electric action；
The hole sealing agent is filled in the cap body of hat matrix, plays sealing of hole isolation and fixed wire effect.
2. according to claim 1 sensor probe is monitored in a kind of aircaft configuration coating antiseptic erosion on-line, it is characterised in that：
The hole sealing agent adopts epoxy resin.
3. according to claim 1 sensor probe is monitored in a kind of aircaft configuration coating antiseptic erosion on-line, it is characterised in that：
When aircraft monitoring position is designed with monitoring preformed hole, the hat base shape reserves hole shape with aircraft monitoring position
Unanimously；When monitoring preformed hole is not designed at aircraft monitoring position, the hat matrix is attached to aircraft monitoring position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112099.XA CN106596391A (en) | 2016-12-07 | 2016-12-07 | On-line monitoring sensing probe for corrosion protection of aircraft structure coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112099.XA CN106596391A (en) | 2016-12-07 | 2016-12-07 | On-line monitoring sensing probe for corrosion protection of aircraft structure coating |
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| CN106596391A true CN106596391A (en) | 2017-04-26 |
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| CN201611112099.XA Pending CN106596391A (en) | 2016-12-07 | 2016-12-07 | On-line monitoring sensing probe for corrosion protection of aircraft structure coating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226027A (en) * | 2017-12-13 | 2018-06-29 | 中国特种飞行器研究所 | Coating aging failure evaluation method under a kind of air thin liquid film environment |
| CN109765172A (en) * | 2019-04-04 | 2019-05-17 | 中国船舶重工集团公司第七二五研究所 | A kind of metal and coating material sea atmosphere corrosion in-situ measurement device and method |
| CN111103031A (en) * | 2020-01-02 | 2020-05-05 | 北京瑞赛长城航空测控技术有限公司 | Intrinsic safety type oil-water interface detection probe |
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| WO2007095573A2 (en) * | 2006-02-14 | 2007-08-23 | Ndsu Research Foundation | Electrochemical impedance spectroscopy method and system |
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| US20110210014A1 (en) * | 2008-11-03 | 2011-09-01 | Garosshen Thomas J | Corrosion sensor system |
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| CN205301144U (en) * | 2015-12-29 | 2016-06-08 | 中国特种飞行器研究所 | Aircraft structure coating corrosion resisting property electrochemistry impedance testing arrangement |
| CN105928866A (en) * | 2016-05-25 | 2016-09-07 | 四川理工学院 | Electrode device for detecting electrochemical performance of porous coating material |
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2016
- 2016-12-07 CN CN201611112099.XA patent/CN106596391A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657902A (en) * | 2005-03-18 | 2005-08-24 | 韶关学院 | On-line monitoring method for failure state of metal and protection layer inter face |
| WO2007095573A2 (en) * | 2006-02-14 | 2007-08-23 | Ndsu Research Foundation | Electrochemical impedance spectroscopy method and system |
| CN101334353A (en) * | 2008-08-01 | 2008-12-31 | 厦门大学 | Multifunctional sensor for monitoring reinforced concrete structure erosion |
| US20110210014A1 (en) * | 2008-11-03 | 2011-09-01 | Garosshen Thomas J | Corrosion sensor system |
| CN102912356A (en) * | 2011-08-05 | 2013-02-06 | 北京科技大学 | Multifunctional catholic protection test probe and test method |
| CN205301144U (en) * | 2015-12-29 | 2016-06-08 | 中国特种飞行器研究所 | Aircraft structure coating corrosion resisting property electrochemistry impedance testing arrangement |
| CN105928866A (en) * | 2016-05-25 | 2016-09-07 | 四川理工学院 | Electrode device for detecting electrochemical performance of porous coating material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226027A (en) * | 2017-12-13 | 2018-06-29 | 中国特种飞行器研究所 | Coating aging failure evaluation method under a kind of air thin liquid film environment |
| CN109765172A (en) * | 2019-04-04 | 2019-05-17 | 中国船舶重工集团公司第七二五研究所 | A kind of metal and coating material sea atmosphere corrosion in-situ measurement device and method |
| CN111103031A (en) * | 2020-01-02 | 2020-05-05 | 北京瑞赛长城航空测控技术有限公司 | Intrinsic safety type oil-water interface detection probe |
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