CN106568538A - Portable in-service steel bridge stress detector based on magnetic flux technology - Google Patents
Portable in-service steel bridge stress detector based on magnetic flux technology Download PDFInfo
- Publication number
- CN106568538A CN106568538A CN201610912563.7A CN201610912563A CN106568538A CN 106568538 A CN106568538 A CN 106568538A CN 201610912563 A CN201610912563 A CN 201610912563A CN 106568538 A CN106568538 A CN 106568538A
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- casing
- control unit
- main control
- portable
- magnetic flux
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 230000004907 flux Effects 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 230000006698 induction Effects 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims description 3
- 230000036541 health Effects 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 238000009659 non-destructive testing Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012631 diagnostic technique Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
- G01L1/127—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using inductive means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a portable in-service steel bridge stress detector based on a magnetic flux technology, and relates to the technical field of bridge health monitoring. The detector comprises a casing, a master control unit, a display screen, a magnetic induction coil, a Hall sensor and a power supply module, the side surface of the casing is rotationally connected with a support, the tail end of the support is provided with a U-shaped chuck, the Hall sensor is fixedly to the U-shaped chuck via a fastening screw, the top end of the casing is provided with an abutting head, and the bottom of the casing is provided with a handle. The detector is reliable in a detection result, clear in logics, simple in a detection method, compact in structure, convenient to carry and high in practicality.
Description
Technical field
The present invention relates to Bridge Health Monitoring Technology field, more particularly to a kind of based on the portable in-service of magnetic flux technology
Steel bridge stress detection device.
Background technology
The big feature across steel bridge with weld defect control structure, its stress and construction etc. are more complicated, are on active service at which in addition
The role and influence of design load, construction quality and environment and various burst factors such as artificial are subject in phase, are especially worked as bridge
After girder construction is subjected to geological process, the material of structure will change（Welding heat affected, corrosion and initial imperfection development etc.）, together
When be also inevitably generated some damage so that its health status constantly deteriorates, its internal force of severe patient with deform will likely surpass
Limit, so as to threaten normal use and the safety of total.
The main cause that the catastrophic failure of large bridge structure occurs is exactly to there is presently no a side well
Method can be to large-span steel bridge force-bearing and the construction quality, damage, material change and the actual loading that construct key position
Situation etc. carries out real time on-line nondestructive test or monitoring, and existing conventional testing techniques and method are all difficult to solve this problem,
The reason for mainly having the following aspects：1. due to the restriction of existing conventional detection apparatus instrument test performance and methods for using them,
In addition the complexity of engineering structure and material property so that conventional testing techniques are difficult to directly apply to engineering structure
Live Non-Destructive Testing or monitoring, though have the field monitoring method of pre-buried pressure cell or other test devices, in general this
A little pre-buried test devices are all disposable, it is difficult to reuse, change measuring point or change in test device and Non-Destructive Testing
Portion's structural member etc. is more difficult, and in its manufacturing process all contains macromolecular material, tinsel or glue etc., institute mostly
Not long with service life, operation difficulty is larger and relatively costly, it is difficult to spread and application；2. traditional structure detection technique
Mainly according to the shaping structural parts or local train for measuring, the internal force of structural elements is determined using its constitutive relation or answered
Power, therefore the loading history or process of structural elements need to be understood and grasped, this changes or actual loading shape for existing structure material
The live Non-Destructive Testing of state be it is extremely difficult, sometimes even not possible with；3. from the point of view of current research with applicable cases,
Application of the existing structure Dynamic Non-Destruction Measurement in Practical Project still suffers from many problems, and some methods are still not perfect enough, inspection
Survey effect is also extremely limited, and these all greatly limit the application of bridge structure health Non-Destructive Testing and diagnostic techniquess
And popularization.At present, lot of domestic and international scholar is theoretical to bridge structure Non-Destructive Testing and application technology has carried out substantial amounts of research work
Make, but, the big correlational study across steel bridge Non-Destructive Testing based on magnetic-couple of force combined stress etection theory is actually rare.Particularly
Also do not occurred based on portable the cannot-harm-detection device of magnetic-couple of force combined stress etection theory, therefore, develop a kind of structure letter
Single, easy to detect, the miniaturization detection means being convenient for carrying is imperative.
The content of the invention
The technical problem to be solved is to provide a kind of portable in-service steel bridge stress based on magnetic flux technology
Detection means, with multinomial defect above-mentioned caused by solving in prior art.
For achieving the above object, the present invention provides following technical scheme：It is a kind of based on magnetic flux technology it is portable
Labour steel bridge stress detection device, including casing, main control unit, display screen, magnetic induction loop, Hall element and power module,
The main control unit is arranged in casing, and the display screen is embedded in the outside of casing, and the magnetic induction loop passes through main control unit
It is connected with power module, and intensity of the main control unit by D/A card control externally-applied magnetic fields, the Hall element is by A/D cards
It is connected with main control unit, the main control unit, Hall element are powered by power module, institute's power module is charged electric
Source, the side of the casing are also rotatably connected to support, and the end of the support is provided with U-clamp head, and the Hall element leads to
Cross trip bolt to be fixed on U-clamp head, the top of the casing is provided with butt junction, and the bottom of casing is provided with handle.
Preferably, the main control unit is specially central processing unit.
Preferably, the side of the casing is provided with the interface being connected with main control unit, the magnetic induction loop by interface with
Main control unit connects.
Preferably, the butt junction includes stud and with female lid, and lid is threaded on stud.
Preferably, the bottom of the casing is also embedded with wireless signal transmitter, wireless signal transmitter and main control unit
Connection.
Preferably, the profile of the casing is cylinder.
Preferably, the both sides of the casing are additionally provided with link, are promising telescopic rope band on link, and rope band is provided with day
Word button.
Preferably, the casing is provided with for accommodating the groove of Hall element, bottom surface and the casing of the support
Outer shape coordinates.
Using the beneficial effect of above technical scheme it is：
1. on the basis of magnetic-couple of force combined stress detection technique theory, junction belt has the in-service steel bridge construction structure of damage to the present invention
The detection of part mechanics, builds magnetic flux-stress model curve, and its relation is write in central controller in the form of algorithm, therefore
Only need the cross-sectional area of typing measured workpiece, and detect the magnetic induction of measured workpiece, Jing after main control unit is calculated
The suffered stress intensity of measured workpiece is drawn, and is shown on a display screen.Its testing result reliability, clear logic, detection method
Simply；
2. the present invention under bridge normal operation environment can be detected and assessed to the health condition of steel bridge deck, be bridge
The program decisions of beam management personnel provides reference, it is ensured that bridge is in can look into, controllable safe operation state, be bridge health prison
Survey and reliable method is provided；
3. structure design of the present invention using compact, overall in cylinder, and hand-held convenience when not in use, can be placed in specially
In the box body of door, storage is convenient；
4. rotary structure is adopted between Hall element, is launched when in use, is packed up when not using, one is formed with casing
Overall, Hall element is hidden in groove, saves space, and Hall element is to be detachably connected with U-clamp head, replacing,
It is easy to adjust；
5. rechargeable type power supply is adopted so that this product can be measured under numerous conditions, without having to worry about the problem of power supply, environment
It is adaptable；
6. the stress information for collecting can issue wireless signal transmitter by main control unit, and be sent out by wireless signal transmitter
The control centre on ground is given, information sharing is realized.
Description of the drawings
Fig. 1,2 are front views under different conditions of the present invention.
Fig. 3 is the top view of the present invention.
Fig. 4 is the internal structure schematic diagram of casing in the present invention.
Fig. 5 is the external structure schematic diagram of casing in the present invention.
Fig. 6 is that rope band buckles the structural representation being connected with day word in the present invention.
Fig. 7 is principle of the invention block diagram.
Fig. 8 is the side view of medium-height trestle of the present invention.
Fig. 9 is the structural representation of medium-height trestle of the present invention.
Wherein, 1- casing, 2- main control units, 3- display screens, 4- magnetic induction loops, 5- Hall elements, 6- power modules, 7-
D/A cards, 8-A/D cards, 9- supports, 10-U clevis heads, 11- trip bolts, 12- butt junctions, 121- studs, 122- lids, 13- connect
Mouth, 14- wireless signal transmitters, 15- links, 16- rope bands, 17- day words are buckled, 18- grooves, 19- handles.
Specific embodiment
Describe the preferred embodiment of the present invention below in conjunction with the accompanying drawings in detail.
Fig. 1 to Fig. 9 illustrates the specific embodiment of the present invention：A kind of portable in-service steel bridge based on magnetic flux technology
Stress detection device, including casing 1, main control unit 2, display screen 3, magnetic induction loop 4, Hall element 5 and power module 6,
The main control unit 2 is arranged in casing 1, and the display screen 3 is embedded in the outside of casing 1, and the magnetic induction loop 4 passes through master control
Unit 2 is connected with power module 6, and main control unit 2 controls the intensity of externally-applied magnetic field, the Hall element 5 by D/A cards 7
It is connected with main control unit 2 by A/D cards 8, the main control unit 2, Hall element 5 are powered by power module 6, institute's power supply mould
Block 6 is rechargeable type power supply, and the side of the casing 1 is also rotatably connected to support 9, and the end of the support 9 is provided with U-clamp head
10, the Hall element 5 is fixed on U-clamp head 10 by trip bolt 11, and the top of the casing 1 is provided with butt junction
12, the bottom of casing 1 is provided with handle 19.
In the present embodiment, the main control unit 2 is specially central processing unit.
In the present embodiment, the side of the casing 1 is provided with the interface 13 being connected with main control unit 2, the magnetic induction loop 4
It is connected with main control unit 2 by interface 13.
In the present embodiment, the butt junction 12 includes stud 121 and with female lid 122,122 screw thread of lid
It is connected on stud 121, using the butt junction of this kind of structure, when in use, can be connected on measured workpiece, launches support
9 so that Hall element 9 is distance with measured workpiece, the size of this segment distance is adjusted by butt junction 12, to obtain
Obtain magnetic field strength date exactly.
In the present embodiment, the bottom of the casing 1 is also embedded with wireless signal transmitter 14, wireless signal transmitter 14
It is connected with main control unit 2.
In the present embodiment, the profile of the casing 1 is cylinder, compact conformation.
In the present embodiment, the both sides of the casing 1 are additionally provided with link 15, are promising telescopic rope band on link 15
16, rope band 16 is provided with a day word and buckles 17, can hang over the device and detected on neck and carried.
Additionally, the casing 1 is provided with for accommodating the groove 18 of Hall element 5, the bottom surface of the support 9 and casing
1 outer shape coordinates, consistent with the profile of casing 1 after packing up, and combines together, saves space.
The operation principle of the present invention：On the basis of magnetic-couple of force combined stress detection technique theory, junction belt have damage
Labour steel bridge construction element mechanics detection, builds magnetic flux-stress model curve, and its relation is write in the form of algorithm central authorities
In controller, therefore the cross-sectional area of typing measured workpiece is only needed, magnetic induction loop 4 is wound on measured workpiece, is switched on power, magnetic strength
The generation of coil 4 magnetic field, and the magnetic induction of measured workpiece is detected by Hall element 5, Jing main control units 2 are calculated
The suffered stress intensity of measured workpiece is drawn afterwards, and is displayed on display screen 3.
Based on above-mentioned, device its testing result reliability of the present invention, clear logic, detection method are simple；The present invention can be with
Under bridge normal operation environment, the health condition of steel bridge deck is detected and assessed, be the scheme of bridge management personnel
Decision-making provides reference, it is ensured that bridge is in can look into, controllable safe operation state, provide reliable method for bridge health monitoring；
Structure design of the present invention using compact, overall in cylinder, hand-held convenience when not in use, can be placed in special box
In vivo, store convenient；Rotary structure is adopted between Hall element 5, is launched when in use, is packed up when not using, with machine
Shell 1 forms an entirety, and Hall element 5 is hidden in groove 18, saves space, and Hall element 5 with U-clamp head 10 is
Be detachably connected, change, it is easy to adjust；Using rechargeable type power supply so that this product can be measured under numerous conditions, without the need for load
The problem of heart power, environment it is adaptable；The stress information for collecting can issue wireless signal transmission by main control unit 2
Device, and the control centre on ground is sent to by wireless signal transmitter 14, realize information sharing.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, some deformations and improvement can also be made, these belong to the present invention
Protection domain.
Claims (8)
1. a kind of portable in-service steel bridge stress detection device based on magnetic flux technology, it is characterised in that including casing, master control
Unit, display screen, magnetic induction loop, Hall element and power module, the main control unit are arranged in casing, the display
Screen is embedded in the outside of casing, and the magnetic induction loop is connected with power module by main control unit, and main control unit is by D/A cards
The intensity of control externally-applied magnetic field, the Hall element are connected with main control unit by A/D cards, and the main control unit, Hall are passed
Sensor is powered by power module, and institute's power module is rechargeable type power supply, and the side of the casing is also rotatably connected to support,
The end of the support is provided with U-clamp head, and the Hall element is fixed on U-clamp head by trip bolt, the casing
Top be provided with butt junction, the bottom of casing is provided with handle.
2. a kind of portable in-service steel bridge stress detection device based on magnetic flux technology according to claim 1, which is special
Levy and be, the main control unit is specially central processing unit.
3. a kind of portable in-service steel bridge stress detection device based on magnetic flux technology according to claim 2, which is special
Levy and be, the side of the casing is provided with the interface being connected with main control unit, the magnetic induction loop passes through interface and main control unit
Connection.
4. a kind of portable in-service steel bridge stress detection device based on magnetic flux technology according to claim 3, which is special
Levy and be, the butt junction includes stud and with female lid, and lid is threaded on stud.
5. a kind of portable in-service steel bridge stress detection device based on magnetic flux technology according to claim 1, which is special
Levy and be, the bottom of the casing is also embedded with wireless signal transmitter, and wireless signal transmitter is connected with main control unit.
6. a kind of portable in-service steel bridge stress detection device based on magnetic flux technology according to claim 1, which is special
Levy and be, the profile of the casing is cylinder.
7. a kind of portable in-service steel bridge stress detection device based on magnetic flux technology according to claim 1, which is special
Levy and be, the both sides of the casing are additionally provided with link, be promising telescopic rope band on link, rope band is provided with a day word and buckles.
8. a kind of portable in-service steel bridge stress detection device based on magnetic flux technology according to claim 1, which is special
Levy and be, the casing is provided with for accommodating the groove of Hall element, the bottom surface of the support and the outer shape of casing
Coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912563.7A CN106568538B (en) | 2016-10-17 | 2016-10-17 | A kind of portable in-service steel bridge stress detection device based on magnetic flux technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912563.7A CN106568538B (en) | 2016-10-17 | 2016-10-17 | A kind of portable in-service steel bridge stress detection device based on magnetic flux technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106568538A true CN106568538A (en) | 2017-04-19 |
| CN106568538B CN106568538B (en) | 2019-11-05 |
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|---|---|---|---|
| CN201610912563.7A Expired - Fee Related CN106568538B (en) | 2016-10-17 | 2016-10-17 | A kind of portable in-service steel bridge stress detection device based on magnetic flux technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024247A (en) * | 2017-06-06 | 2017-08-08 | 国家电网公司 | Transmission line of electricity interruption of service on-line monitoring system based on magnetic flux transducer |
| CN109883836A (en) * | 2019-03-22 | 2019-06-14 | 西安石油大学 | A kind of pipe line steel magnetic force property detection method |
| CN109974792A (en) * | 2019-03-22 | 2019-07-05 | 西安石油大学 | Pipeline nondestructive stress measurement detection pilot system and method based on magnetic coupling effect |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204359479U (en) * | 2014-12-30 | 2015-05-27 | 中国石油化工股份有限公司 | In-service oil derrick safety early warning device |
| CN205404778U (en) * | 2016-03-07 | 2016-07-27 | 翁光远 | Steel stress detection device |
| CN205404485U (en) * | 2016-03-07 | 2016-07-27 | 翁光远 | Steel bridge detection device based on magnetic coupling effect |
-
2016
- 2016-10-17 CN CN201610912563.7A patent/CN106568538B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204359479U (en) * | 2014-12-30 | 2015-05-27 | 中国石油化工股份有限公司 | In-service oil derrick safety early warning device |
| CN205404778U (en) * | 2016-03-07 | 2016-07-27 | 翁光远 | Steel stress detection device |
| CN205404485U (en) * | 2016-03-07 | 2016-07-27 | 翁光远 | Steel bridge detection device based on magnetic coupling effect |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024247A (en) * | 2017-06-06 | 2017-08-08 | 国家电网公司 | Transmission line of electricity interruption of service on-line monitoring system based on magnetic flux transducer |
| CN109883836A (en) * | 2019-03-22 | 2019-06-14 | 西安石油大学 | A kind of pipe line steel magnetic force property detection method |
| CN109974792A (en) * | 2019-03-22 | 2019-07-05 | 西安石油大学 | Pipeline nondestructive stress measurement detection pilot system and method based on magnetic coupling effect |
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| Publication number | Publication date |
|---|---|
| CN106568538B (en) | 2019-11-05 |
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Effective date of registration: 20190916 Address after: 710000 Shaanxi province Xi'an hugetide Weiyang District of Beijiao economic and Technological Development Zone No. 19 North Road Applicant after: Shaanxi College of Communication Technology Address before: 710000 Shaanxi province Xi'an Weiyang Wenjing Road No. 19 workers Applicant before: Weng Guang Yuan |
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