CN107422038A - A kind of steel construction detection means and method that tuning fork resonance is instigated based on magnetic pull - Google Patents
A kind of steel construction detection means and method that tuning fork resonance is instigated based on magnetic pull Download PDFInfo
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- CN107422038A CN107422038A CN201710813507.2A CN201710813507A CN107422038A CN 107422038 A CN107422038 A CN 107422038A CN 201710813507 A CN201710813507 A CN 201710813507A CN 107422038 A CN107422038 A CN 107422038A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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Abstract
The technical program provides a kind of steel construction detection means that tuning fork resonance is instigated based on magnetic pull, interdigital electromagnet include tuning fork and in the same direction be wrapped in tuning fork one end it is interdigital on coil, tuning fork is made up of ferromagnetic material, interdigital electromagnet is arranged at the measured surface pre-determined distance of steel construction, for measured surface towards interdigital electromagnet, measured surface is the surface of the externally-packed structure of steel construction；The positive pole of exciting signal source is connected with the both ends of coil respectively with negative pole, and exciting signal source can send the alternating current of frequency identical with the resonant frequency of tuning fork；Signal receiving device is relatively fixed setting with interdigital electromagnet, and signal receiving device can receive the acoustic signals that interdigital electromagnet is sent；Signal analysis device is connected with signal receiving device, and signal analysis device is used for based on acoustic signals generation steel construction defect information.Can be do not damage steel construction in itself and in the case of the externally-packed structure of steel construction, detect the steel structure surface in the externally-packed structure of steel construction the defects of.
Description
Technical field
The present invention relates to technical field of nondestructive testing, specifically, it is related to and a kind of tuning fork resonance is instigated based on magnetic pull
Steel construction detection means and method.
Background technology
With economic development and production technology, welding and the progress for bolting technology, construction method, shaped steel, reinforcing bar, drag-line,
The steel constructions such as steel bridge deck, reinforced concrete structure, concrete filled steel tube, it is widely used in the building work such as bridge, house
Journey field.
The quality of steel construction quality affects the use function and durability of structure, or even is related to the peace of total
Entirely.Due to factors such as material self-defect, construction quality, environmental attacks, it can usually cut the crackle of inside and outside portion's steel construction, roll over
The defects of folded, pit, pockmark, Design of Steel Structural Element Sections is lost, so as to influence itself bearing capacity of structure, architectural engineering can not be ensured
Safety.However, because the surface of steel construction is usually constructed with one layer of externally-packed structure, naked eyes can not be observed directly steel construction table
The defects of face.
Therefore, how steel structure surface in the externally-packed structure of steel construction the defects of become those skilled in the art and need badly
Solve the problems, such as.
The content of the invention
For above-mentioned the deficiencies in the prior art, the invention provides a kind of steel construction that tuning fork resonance is instigated based on magnetic pull
Detection means, steel construction can not damaged in itself and in the case of the externally-packed structure of steel construction, detect the externally-packed structure of steel construction
The defects of interior steel structure surface.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
It is a kind of based on magnetic pull instigate tuning fork resonance steel construction detection means, including interdigital electromagnet, exciting signal source,
Signal receiving device and signal analysis device, wherein：
The interdigital electromagnet include tuning fork and be wrapped in the same direction described tuning fork one end it is interdigital on coil, the tuning fork by
Ferromagnetic material is made, and the interdigital electromagnet is arranged at the measured surface pre-determined distance of the steel construction, the quilt
Surface is surveyed towards the interdigital electromagnet, the measured surface is the surface of the externally-packed structure of the steel construction；
The positive pole of the exciting signal source is connected with both ends of the negative pole respectively with the coil, and the exciting signal source can
Send the alternating current of frequency identical with the resonant frequency of the tuning fork；
The signal receiving device is relatively fixed setting with the interdigital electromagnet, and the signal receiving device can receive
The acoustic signals that the interdigital electromagnet is sent；
The signal analysis device is connected with the signal receiving device, and the signal analysis device is used to be based on the sound
Ripple signal generation steel construction defect information.
Preferably, in addition to slide rail, the slide rail are set along the measured surface, and the interdigital electromagnet is arranged on described
On slide rail, the interdigital electromagnet can slide along the slide rail, the interdigital electromagnet on the slide rail slide when and institute
The distance for stating measured surface keeps the pre-determined distance.
Preferably, in addition to drive device, the drive device are used to control the interdigital electromagnet in the slide rail
Slide.
A kind of steel construction detection method that tuning fork resonance is instigated based on magnetic pull, sound is instigated using above-mentioned based on magnetic pull
The steel construction detection means examinations of resonance are pitched, are comprised the following steps：
The signal driving source is opened, the signal driving source is sent frequency identical with the resonant frequency of the tuning fork
Alternating current；
The interdigital electromagnet is moved along the measured surface, interdigital electromagnet described in moving process and the tested table
Distance between face keeps the pre-determined distance；
The signal receiving device receives what the interdigital electromagnet was sent during the interdigital electromagnet movement
Acoustic signals；
The signal analysis device is based on the acoustic signals and generates the steel construction defect information.
Preferably, the steel construction detection means that tuning fork resonance is instigated based on magnetic pull also includes slide rail, the slide rail
Set along the measured surface, the interdigital electromagnet is arranged on the slide rail, and the interdigital electromagnet can be along the cunning
Rail slides, and the interdigital electromagnet keeps the pre-determined distance when being slided on the slide rail with the distance of the measured surface；
It is described to move the interdigital electromagnet along the measured surface, described in moving process between interdigital electromagnet and the measured surface
Distance keep the pre-determined distance to include：The interdigital electromagnet is moved along the slide rail.
Preferably, the steel construction detection means that tuning fork resonance is instigated based on magnetic pull also includes drive device, described
Drive device is used to control the interdigital electromagnet to slide on the slide rail；It is described moved along the measured surface it is described interdigital
Electromagnet, the distance described in moving process between interdigital electromagnet and the measured surface keep the pre-determined distance to include：Open
The drive device is opened, the drive device controls the interdigital electromagnet to be moved along the slide rail.
Be preferably based on magnetic pull instigate tuning fork resonance steel construction detection signal analytical equipment be based on the acoustic signals
The principle for generating the steel construction defect information is：
The signal driving source sends the alternating current of frequency identical with the tuning fork resonant frequency to the coil；
The interdigital periodic magnetic for being magnetized, producing the alternating current same frequency wound by the coil of the tuning fork
；
The steel construction is magnetized by the periodical magnetic filed, and periodic magnetic gravitation is produced between the interdigital electromagnet；
The interdigital electromagnet resonates in the presence of the periodicity magnetic force；
The signal receiving device receives the sound wave sent when the interdigital electromagnet resonates；
The signal analysis device obtains the intensity of acoustic wave information of the sound wave；
The intensity of the sound wave and the periodicity magnetic force positive correlation；
The periodicity magnetic force is with the surface of the interdigital electromagnet and the steel construction apart from positive correlation；
When the defective position in the surface that the interdigital electromagnet is moved to the steel construction, the interdigital electromagnet with
The distance on the surface of the steel construction can free change, and the intensity of the sound wave can change, and thus can determine whether described interdigital
The surface of the steel construction of position correspondence described in electromagnet is defective.
In summary, the technical program provides a kind of steel construction detection means that tuning fork resonance is instigated based on magnetic pull,
Interdigital electromagnet include tuning fork and in the same direction be wrapped in tuning fork one end it is interdigital on coil, tuning fork is made up of ferromagnetic material, interdigital
Electromagnet is arranged at the measured surface pre-determined distance of steel construction, and measured surface is towards interdigital electromagnet, measured surface
The surface of the externally-packed structure of steel construction；The positive pole of exciting signal source is connected with the both ends of coil respectively with negative pole, exciting signal source
The alternating current of frequency identical with the resonant frequency of tuning fork can be sent；Signal receiving device is relatively fixed with interdigital electromagnet and set
Put, signal receiving device can receive the acoustic signals that interdigital electromagnet is sent；Signal analysis device connects with signal receiving device
Connect, signal analysis device is used for based on acoustic signals generation steel construction defect information.Steel construction can not damaged in itself and steel knot
In the case of the externally-packed structure of structure, the defects of detecting the steel structure surface in the externally-packed structure of steel construction.
Brief description of the drawings
In order that the purpose, technical scheme and advantage of invention are clearer, the present invention is made into one below in conjunction with accompanying drawing
The detailed description of step, wherein：
Fig. 1 is a kind of structural representation of steel construction detection means that tuning fork resonance is instigated based on magnetic pull disclosed by the invention
Figure；
Fig. 2 is a kind of flow chart of steel construction detection method that tuning fork resonance is instigated based on magnetic pull disclosed by the invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, it is a kind of steel construction detection means that tuning fork resonance is instigated based on magnetic pull disclosed by the invention
Structural representation, including interdigital electromagnet, exciting signal source, signal receiving device 3 and signal analysis device 2, wherein：
Interdigital electromagnet include tuning fork 4 and in the same direction be wrapped in the one end of tuning fork 4 it is interdigital on coil 6, tuning fork 4 is by ferromagnetism thing
Matter is made, and interdigital electromagnet is arranged at the measured surface pre-determined distance of steel construction 9, and measured surface is towards interdigital electromagnetism
Iron, measured surface are the surface of the externally-packed structure 8 of steel construction 9；
In the technical program, the measured surface of steel construction 9 is the surface of the externally-packed structure 8 of steel construction 9, general steel construction
9 externally-packed structure 8 is all nonmagnetic insulating material, such as concrete, plastics, cold coating etc., will not be with interdigital electromagnetism
Iron is had an effect, and the surfacing of externally-packed structure 8 of steel construction 9, facilitates ensuring that interdigital electromagnet to the distance of steel construction 9.Sound
The size of periodicity magnetic force that fork 4 is subject to the surface of tuning fork 4 and steel construction 9 apart from positive correlation, so in order to which ensure can be with
The defects of accurately detecting 9 surface of steel construction under measured surface, interdigital electromagnet should be in measured surface side, i.e., tested tables
Facing to interdigital electromagnet, and in order that the effect of periodicity magnetic force is more obvious, tuning fork 4 is set to be wound with an end yoke of coil 6
Refer to is advisable close to measured surface.The requirement of tuning fork 4 uses the material such as ferrimagnet, such as steel, soft iron, permalloy, quartz+electromagnet
Material or structure type.
The positive pole of exciting signal source is connected with both ends of the negative pole respectively with coil 6, and exciting signal source can be sent and tuning fork 4
The identical frequency of resonant frequency alternating current；
Sound wave to send tuning fork 4 is preferably propagated in atmosphere, and exciting signal source is using frequency in 10Hz-15kHz
Between alternating current be advisable, the resonant frequency of same tuning fork 4 is advisable in 10Hz-15kHz audiorange, exciting signal source
The ac frequency sent is identical with the resonant frequency of tuning fork 4, then tuning fork 4 can be made to resonate, and makes the amplitude of sound wave bigger, from
And be more easily detected, improve the precision of detection.
Signal receiving device 3 is relatively fixed setting with interdigital electromagnet, and signal receiving device 3 can receive interdigital electromagnet
The acoustic signals sent；
Sound wave is propagated in atmosphere to decay, for ensure sound wave by interdigital electromagnet declining to signal receiving device 3
It is identical to subtract degree, therefore, signal receiving device 3 and interdigital electromagnet are relatively fixed setting, i.e., no matter the position of interdigital electromagnet
How to change, the relative position of signal receiving device 3 and interdigital electromagnet is all constant, and distance between the two does not also change.
Signal receiving device 3 herein can be microphone, the sound wave sent for receiving interdigital electromagnet.
Signal analysis device 2 is connected with signal receiving device 3, and signal analysis device 2 is used for based on acoustic signals generation steel
The defect information of structure 9.
Signal analysis device 2 can be judged that the surface of steel construction 9 whether there is defect by acoustic signals, and concrete principle is：Line
Enclose 6 same directions be wrapped in tuning fork 4 one end it is interdigital on, form interdigital electromagnet.Exciting signal source is opened, alternating current passes through line
Circle 6, the interdigital magnetization of tuning fork 4, produce the periodical magnetic filed with alternating current same frequency.
Because steel construction 9 is typical ferrimagnet, magnetic field caused by tuning fork 4 will magnetize lower section steel construction 9, and
Periodic magnetic gravitation is produced between interdigital electromagnet and steel construction 9.And the protective layer material of general steel construction 9 is all to be nonmagnetic
Insulating material, such as concrete, plastics, cold coating etc., it will not be had an effect with interdigital electromagnet.
Under the instigating of periodicity magnetic force between steel construction 9 and interdigital electromagnet, tuning fork 4 produces resonance.
Signal receiving device 3 moves with position of the interdigital electromagnet with a certain distance from from measured surface along measured surface,
For ease of detecting and controlling, interdigital electromagnet uniform motion is advisable.
The tuning fork 4 to resonate will drive air to send sound wave, and be gathered by signal receiving device 3.Due to interdigital electromagnetism
The electromagnetic attraction of iron and steel construction 9 acts on, and the interdigital of tuning fork 4 is acted on by power, starts to produce resonance, and along with sounding.
According to resonance theory, the actual size for being proportional to periodicity magnetic force of resonance amplitude, can be seen that according to damped resonance amplitude formula：
Wherein A is the resonance amplitude of tuning fork 4, ω0For the natural frequency of vibration of tuning fork 4, ωpFor the frequency of periodicity magnetic force, δ is tuning fork 4
Damped coefficient, f be periodicity magnetic force size.
In the present invention, periodicity magnetic force that tuning fork 4 is subject to is that the periodic magnetic between interdigital electromagnet and steel construction 9 is drawn
Power.If the wave amplitude collected is As, then AsIt is proportional to the Oscillation Amplitude A of tuning fork 4.The intensity E and wave amplitude A of sound wave simultaneouslys
Relation is that the intensity E of sound wave is proportional to wave amplitude AsSquare.Relation above can be expressed as following formula：
As can be seen from the above equation, the intensity of acoustic wave that the resonance of tuning fork 4 is sent is proportional to the size of its cycle magnetic pull being subject to
Square.
When there is defect in the surface of steel construction 9 corresponding to the present position of tuning fork 4, interdigital electromagnet and the surface of steel construction 9
Distance can change, and then so that the size for the periodicity magnetic force that interdigital electromagnet is subject to changes.The sound that tuning fork 4 is sent
The intensity of ripple also can accordingly change.Therefore, when the intensity that signal analysis device 2 analyzes sound wave changes, then this is illustrated
When the surface existing defects of steel construction 9 corresponding to the present position of tuning fork 4.
Signal analysis device 2 can include in the present invention：D/A converting circuit, data collecting card and processor, digital-to-analogue
The input of change-over circuit is connected with the output end of signal receiving device 3, the input and D/A converting circuit of data collecting card
Output end connection, the output end of the input of processor and data collecting card connects.Gather such a structure and receive acoustic signals
Principle be prior art, will not be repeated here.
In summary, the technical program provides a kind of steel construction detection means that tuning fork resonance is instigated based on magnetic pull,
Interdigital electromagnet include tuning fork 4 and be wrapped in the same direction the one end of tuning fork 4 it is interdigital on coil 6, tuning fork 4 is made up of ferromagnetic material,
Interdigital electromagnet is arranged at the measured surface pre-determined distance of steel construction 9, and measured surface is tested table towards interdigital electromagnet
Face is the surface of the externally-packed structure 8 of steel construction 9；The positive pole of exciting signal source is connected with both ends of the negative pole respectively with coil 6, excitation
Signal source can send the alternating current of frequency identical with the resonant frequency of tuning fork 4；Signal receiving device 3 is relative with interdigital electromagnet
Fixed setting, signal receiving device 3 can receive the acoustic signals that interdigital electromagnet is sent；Signal analysis device 2 connects with signal
Receiving apparatus 3 connects, and signal analysis device 2 is used for based on the acoustic signals generation defect information of steel construction 9.Steel construction can not damaged
9 in itself and in the case of the externally-packed structure 8 of steel construction 9, detects lacking for the surface of steel construction 9 in the externally-packed structure 8 of steel construction 9
Fall into.
As shown in Fig. 2 it is a kind of steel construction detection method that tuning fork resonance is instigated based on magnetic pull disclosed by the invention
Flow chart, this detection method use the above-mentioned steel construction detection means examinations that tuning fork resonance is instigated based on magnetic pull, including
Following steps：
S101, open signal driving source 5, signal driving source 5 is set to send the exchange of frequency identical with the resonant frequency of tuning fork 4
Electricity；
S102, move interdigital electromagnet along measured surface, the distance in moving process between interdigital electromagnet and measured surface
Keep pre-determined distance；
S103, signal receiving device 3 receive the sound wave letter that interdigital electromagnet is sent during interdigital electromagnet moves
Number；
S104, signal analysis device 2 are based on the acoustic signals generation defect information of steel construction 9.
Signal analysis device 2 based on acoustic signals generation the defect information of steel construction 9 principle be：
Signal driving source 5 sends the alternating current of frequency identical with the resonant frequency of tuning fork 4 to coil 6；Tuning fork 4 by coil 6
The interdigital of winding is magnetized, and produces the periodical magnetic filed of alternating current same frequency；Steel construction 9 is magnetized by periodical magnetic filed, and interdigital
Electromagnet produces periodicity magnetic force；Interdigital electromagnet resonates in the presence of periodicity magnetic force；Signal receiving device 3 receives
The sound wave that interdigital electromagnet is sent when resonating；Signal analysis device 2 obtains the intensity of acoustic wave information of sound wave；The intensity of sound wave
With periodicity magnetic force positive correlation；Periodicity magnetic force is with the surface of interdigital electromagnet and steel construction 9 apart from positive correlation；When interdigital electricity
When magnet is moved to the defective position in surface of steel construction 9, the distance on interdigital electromagnet and the surface of steel construction 9, which can free, to be changed
Become, the intensity of sound wave can change, and thus can determine whether that the surface of the steel construction 9 of interdigital electromagnet position correspondence is defective.
For further optimization above-mentioned technical proposal, the steel construction detection means of tuning fork resonance is instigated based on magnetic pull also to be included
Slide rail 1, slide rail 1 are set along measured surface, and interdigital electromagnet is arranged on slide rail 1, and interdigital electromagnet can slide along slide rail 1,
Interdigital electromagnet on slide rail 1 slide when and measured surface distance keep pre-determined distance.In detection process, moved along measured surface
The step of moving fork refers to electromagnet, and the distance in moving process between interdigital electromagnet and measured surface keeps pre-determined distance also includes：
Interdigital electromagnet is moved along slide rail 1.
Interdigital electromagnet is arranged on slide rail 1, be easy to ensure interdigital electromagnet when mobile and measured surface distance
Remain pre-determined distance.In addition, signal receiving device 3 can be also arranged on slide rail 1, for ensureing signal receiving device 3 and fork
Refer to the relative position of electromagnet.Resonated for ease of tuning fork 4, the afterbody of tuning fork 4 is connected with slide rail 1 to be advisable, and it is in cantilever to make tuning fork 4
State.
For further optimization above-mentioned technical proposal, the steel construction detection means of tuning fork resonance is instigated based on magnetic pull also to be included
Drive device 7, drive device 7 are used to control interdigital electromagnet to slide on slide rail 1.In detection process, moved along measured surface
Interdigital electromagnet, the step of distance in moving process between interdigital electromagnet and measured surface keeps pre-determined distance, also include：Open
Drive device 7 is opened, drive device 7 controls interdigital electromagnet to be moved along slide rail 1.
Drive device 7 can include the structures such as stepper motor and pulley, driven and pitched by structures such as stepper motor and pulleys
Referring to the existing structure design that electromagnet moves on slide rail has a lot, will not be repeated here；Can be automatic using drive device 7
The movement of interdigital electromagnet is controlled, so as to make whole detection process realize automation, improves detection efficiency.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although passing through ginseng
According to the preferred embodiments of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
So that various changes are made to it in the form and details, the present invention that is limited without departing from appended claims
Spirit and scope.
Claims (7)
1. a kind of steel construction detection means that tuning fork resonance is instigated based on magnetic pull, it is characterised in that including interdigital electromagnet, swash
Signal source, signal receiving device and signal analysis device are encouraged, wherein：
The interdigital electromagnet include tuning fork and be wrapped in the same direction described tuning fork one end it is interdigital on coil, the tuning fork is by ferromagnetic
Property material is made, and the interdigital electromagnet is arranged at the measured surface pre-determined distance of the steel construction, the tested table
Facing to the interdigital electromagnet, the measured surface is the surface of the externally-packed structure of the steel construction；
The positive pole of the exciting signal source is connected with both ends of the negative pole respectively with the coil, and the exciting signal source can be sent
The alternating current of frequency identical with the resonant frequency of the tuning fork；
The signal receiving device is relatively fixed setting with the interdigital electromagnet, and the signal receiving device can receive described
The acoustic signals that interdigital electromagnet is sent；
The signal analysis device is connected with the signal receiving device, and the signal analysis device is used to believe based on the sound wave
Number generation steel construction defect information.
2. the steel construction detection means of tuning fork resonance is instigated based on magnetic pull as claimed in claim 1, it is characterised in that also wrap
Slide rail is included, the slide rail is set along the measured surface, and the interdigital electromagnet is arranged on the slide rail, the interdigital electromagnetism
Iron can be slided along the slide rail, and the interdigital electromagnet is kept when being slided on the slide rail with the distance of the measured surface
The pre-determined distance.
3. the steel construction detection means of tuning fork resonance is instigated based on magnetic pull as claimed in claim 2, it is characterised in that also wrap
Drive device is included, the drive device is used to control the interdigital electromagnet to slide on the slide rail.
4. a kind of steel construction detection method that tuning fork resonance is instigated based on magnetic pull, it is characterised in that using such as claim 1 institute
That states instigates the steel construction detection means examinations of tuning fork resonance based on magnetic pull, comprises the following steps：
The signal driving source is opened, the signal driving source is sent the exchange of frequency identical with the resonant frequency of the tuning fork
Electricity；
The interdigital electromagnet is moved along the measured surface, described in moving process between interdigital electromagnet and the measured surface
Distance keep the pre-determined distance；
The signal receiving device receives the sound wave that the interdigital electromagnet is sent during the interdigital electromagnet movement
Signal；
The signal analysis device is based on the acoustic signals and generates the steel construction defect information.
5. the steel construction detection method of tuning fork resonance is instigated based on magnetic pull as claimed in claim 4, it is characterised in that described
The steel construction detection means of tuning fork resonance is instigated based on magnetic pull also includes slide rail, and the slide rail is set along the measured surface,
The interdigital electromagnet is arranged on the slide rail, and the interdigital electromagnet can slide along the slide rail, the interdigital electromagnetism
Iron keeps the pre-determined distance when being slided on the slide rail with the distance of the measured surface；It is described to be moved along the measured surface
Move the interdigital electromagnet, distance between interdigital electromagnet and the measured surface described in moving process keep it is described it is default away from
From including：The interdigital electromagnet is moved along the slide rail.
6. the steel construction detection method of tuning fork resonance is instigated based on magnetic pull as claimed in claim 5, it is characterised in that described
The steel construction detection means of tuning fork resonance is instigated based on magnetic pull also includes drive device, and the drive device is described for controlling
Interdigital electromagnet slides on the slide rail；It is described to move the interdigital electromagnet along the measured surface, institute in moving process
Stating the distance between interdigital electromagnet and the measured surface keeps the pre-determined distance to include：The drive device is opened, it is described
Drive device controls the interdigital electromagnet to be moved along the slide rail.
7. the steel construction detection method of tuning fork resonance is instigated based on magnetic pull as claimed in claim 4, it is characterised in that be based on
The steel construction detection signal analytical equipment that magnetic pull instigates tuning fork resonance is based on the acoustic signals generation steel construction defect
The principle of information is：
The signal driving source sends the alternating current of frequency identical with the tuning fork resonant frequency to the coil；
The interdigital periodical magnetic filed for being magnetized, producing the alternating current same frequency wound by the coil of the tuning fork；
The steel construction is magnetized by the periodical magnetic filed, and periodic magnetic gravitation is produced between the interdigital electromagnet；
The interdigital electromagnet resonates in the presence of the periodicity magnetic force；
The signal receiving device receives the sound wave sent when the interdigital electromagnet resonates；
The signal analysis device obtains the intensity of acoustic wave information of the sound wave；
The intensity of the sound wave and the periodicity magnetic force positive correlation；
The periodicity magnetic force is with the surface of the interdigital electromagnet and the steel construction apart from positive correlation；
When the defective position in the surface that the interdigital electromagnet is moved to the steel construction, the interdigital electromagnet with it is described
The distance on the surface of steel construction can free change, and the intensity of the sound wave can change, and thus can determine whether the interdigital electromagnetism
The surface of the steel construction of position correspondence described in iron is defective.
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| CN201710813507.2A CN107422038B (en) | 2017-09-11 | 2017-09-11 | Steel structure detection device and method based on magnetic attraction driving tuning fork resonance |
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| CN201710813507.2A CN107422038B (en) | 2017-09-11 | 2017-09-11 | Steel structure detection device and method based on magnetic attraction driving tuning fork resonance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115585879A (en) * | 2022-10-10 | 2023-01-10 | 国网山东省电力公司高密市供电公司 | Sound wave detection device for monitoring vibration amplitude of power equipment |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04186145A (en) * | 1990-11-21 | 1992-07-02 | Suzuki Motor Corp | Measuring method for solid phase rate and complexion ratio |
| US6794886B1 (en) * | 2001-11-01 | 2004-09-21 | Kla-Tencor Technologies Corporation | Tank probe for measuring surface conductance |
| US20050016285A1 (en) * | 2001-12-19 | 2005-01-27 | Dornier Medtech Systems Gmbh | Testing and monitoring of a shock wave or pressure wave source |
| CN2705790Y (en) * | 2004-06-22 | 2005-06-22 | 郑州士奇测控技术有限公司 | Non-contact magnetizer for magnetic leakage defect detection |
| US20060212923A1 (en) * | 2005-03-18 | 2006-09-21 | Displaymate Technologies Corporation | Method for the fully automatic and/or semi-automatic interactive configuration, set up, adjustment, calibration, and control of a video system for improving image quality and ease of use |
| JP2008045990A (en) * | 2006-08-15 | 2008-02-28 | Epson Toyocom Corp | Magnetic detection element and magnetic detection device |
| US20120280682A1 (en) * | 2011-04-06 | 2012-11-08 | Zhongyang Cheng | Systems for Characterizing Resonance Behavior of Magnetostrictive Resonators |
| CN103018320A (en) * | 2012-11-30 | 2013-04-03 | 江苏大学 | Resonance-type magnetoelectric sensor for ferromagnetic material defect detection and detection method thereof |
| CN103257181A (en) * | 2013-05-24 | 2013-08-21 | 中国矿业大学 | Metal sheet defect detection device and method in high-speed motion state |
| CN103353479A (en) * | 2013-06-28 | 2013-10-16 | 厦门大学 | Electromagnetic ultrasonic longitudinal guided wave and magnetic leakage detection compounded detection method |
| CN103364457A (en) * | 2012-04-01 | 2013-10-23 | 中原工学院 | Real-time monitoring device and method for freezing-thawing damage of rock |
| CN103411898A (en) * | 2013-07-20 | 2013-11-27 | 山西大学 | All-optical gas detection method and device based on quartz enhanced photoacoustic spectrum |
| DE112012002705T5 (en) * | 2011-06-28 | 2014-03-20 | Hitachi, Ltd. | Magnetic resonance measuring equipment |
| CN103884418A (en) * | 2014-04-17 | 2014-06-25 | 山西大学 | Tuning fork type quartz crystal oscillator resonant frequency measurement method based on sound excitation and device |
| CN103884419A (en) * | 2014-04-17 | 2014-06-25 | 山西大学 | Tuning fork type quartz crystal oscillator resonant frequency measurement method based on optical excitation and device |
| CN104391045A (en) * | 2014-10-28 | 2015-03-04 | 邢涛 | Sound-wave-based square wood hole-defect recognition system and method |
| CN107014894A (en) * | 2017-06-12 | 2017-08-04 | 重庆交通大学 | The steel construction Damage of Corroded imaging system and method detected based on electromagnetic attraction |
| CN207114481U (en) * | 2017-09-11 | 2018-03-16 | 重庆交通大学 | A kind of steel construction detection means that tuning fork resonance is instigated based on magnetic pull |
-
2017
- 2017-09-11 CN CN201710813507.2A patent/CN107422038B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04186145A (en) * | 1990-11-21 | 1992-07-02 | Suzuki Motor Corp | Measuring method for solid phase rate and complexion ratio |
| US6794886B1 (en) * | 2001-11-01 | 2004-09-21 | Kla-Tencor Technologies Corporation | Tank probe for measuring surface conductance |
| US20050016285A1 (en) * | 2001-12-19 | 2005-01-27 | Dornier Medtech Systems Gmbh | Testing and monitoring of a shock wave or pressure wave source |
| CN2705790Y (en) * | 2004-06-22 | 2005-06-22 | 郑州士奇测控技术有限公司 | Non-contact magnetizer for magnetic leakage defect detection |
| US20060212923A1 (en) * | 2005-03-18 | 2006-09-21 | Displaymate Technologies Corporation | Method for the fully automatic and/or semi-automatic interactive configuration, set up, adjustment, calibration, and control of a video system for improving image quality and ease of use |
| JP2008045990A (en) * | 2006-08-15 | 2008-02-28 | Epson Toyocom Corp | Magnetic detection element and magnetic detection device |
| US20120280682A1 (en) * | 2011-04-06 | 2012-11-08 | Zhongyang Cheng | Systems for Characterizing Resonance Behavior of Magnetostrictive Resonators |
| DE112012002705T5 (en) * | 2011-06-28 | 2014-03-20 | Hitachi, Ltd. | Magnetic resonance measuring equipment |
| CN103364457A (en) * | 2012-04-01 | 2013-10-23 | 中原工学院 | Real-time monitoring device and method for freezing-thawing damage of rock |
| CN103018320A (en) * | 2012-11-30 | 2013-04-03 | 江苏大学 | Resonance-type magnetoelectric sensor for ferromagnetic material defect detection and detection method thereof |
| CN103257181A (en) * | 2013-05-24 | 2013-08-21 | 中国矿业大学 | Metal sheet defect detection device and method in high-speed motion state |
| CN103353479A (en) * | 2013-06-28 | 2013-10-16 | 厦门大学 | Electromagnetic ultrasonic longitudinal guided wave and magnetic leakage detection compounded detection method |
| CN103411898A (en) * | 2013-07-20 | 2013-11-27 | 山西大学 | All-optical gas detection method and device based on quartz enhanced photoacoustic spectrum |
| CN103884418A (en) * | 2014-04-17 | 2014-06-25 | 山西大学 | Tuning fork type quartz crystal oscillator resonant frequency measurement method based on sound excitation and device |
| CN103884419A (en) * | 2014-04-17 | 2014-06-25 | 山西大学 | Tuning fork type quartz crystal oscillator resonant frequency measurement method based on optical excitation and device |
| CN104391045A (en) * | 2014-10-28 | 2015-03-04 | 邢涛 | Sound-wave-based square wood hole-defect recognition system and method |
| CN107014894A (en) * | 2017-06-12 | 2017-08-04 | 重庆交通大学 | The steel construction Damage of Corroded imaging system and method detected based on electromagnetic attraction |
| CN207114481U (en) * | 2017-09-11 | 2018-03-16 | 重庆交通大学 | A kind of steel construction detection means that tuning fork resonance is instigated based on magnetic pull |
Non-Patent Citations (1)
| Title |
|---|
| 邵营: "超声表面波应力无损检测技术研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115585879A (en) * | 2022-10-10 | 2023-01-10 | 国网山东省电力公司高密市供电公司 | Sound wave detection device for monitoring vibration amplitude of power equipment |
| CN115585879B (en) * | 2022-10-10 | 2023-08-18 | 国网山东省电力公司高密市供电公司 | Acoustic wave detection device for monitoring vibration amplitude of power equipment |
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