CN110261915A - A kind of armored concrete bar construction scan method and scanner based on electromagnetic induction - Google Patents
A kind of armored concrete bar construction scan method and scanner based on electromagnetic induction Download PDFInfo
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- CN110261915A CN110261915A CN201910514239.3A CN201910514239A CN110261915A CN 110261915 A CN110261915 A CN 110261915A CN 201910514239 A CN201910514239 A CN 201910514239A CN 110261915 A CN110261915 A CN 110261915A
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
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- G—PHYSICS
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
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Abstract
The invention discloses a kind of armored concrete bar construction scan method and scanner based on electromagnetic induction, this method is applied in the scanner including two groups of receiving coils, by determining the first peak value platform spacing and groove depth steps according to the energy curve received in scanning process；Interval error weight is determined according to the groove depth steps；Practical reinforcing bar radical in the bar construction is determined according to the first peak value platform spacing, the interval error weight and the corresponding peak value platform energy of the first peak value platform spacing, to accurately identify the reinforcing bar radical in intensive bar construction, the quality of Scanning Detction is improved.
Description
Technical field
The present invention relates to building detection technique field, in particular to a kind of armored concrete reinforcing bar knots based on electromagnetic induction
Structure scan method and scanner.
Background technique
Since the intensity of concrete has the characteristics of high resistance to compression, low tension, and the intensity of reinforcing bar has high tensile, low resistance to compression
The characteristics of, the reinforced concrete structure synergistic effect that the two combines can be obtained good resistance to compression tensile capacity, at present be also extensive
For the building structure of one of the building such as building, bridge, tunnel.
The ratio of reinforcement and thickness of protection tier difference in reinforced concrete structure, reinforcing bar is born in the schematic views in particular
The ability of tensile stress is also corresponding different.When thickness is excessive, the Crack Control performance of protective layer, reinforced concrete structure can be reduced
Bend-carrying capacity and rigidity, safety of structure, durability all substantially reduce；And thickness it is too small when, protective layer is easy
Concrete scaling is caused when structure stress, and over time, concrete structural surface carbonization causes mixed outside reinforcing bar
Solidifying soil loses protective effect even exposed reinforcement, cohesive force is lost between reinforcing bar and concrete, then reinforced concrete structure is whole
Body is destroyed.In order to which every infrastructure, inside reinforcing bar point of the China to components such as beam, the plates of engineering are built in stable development
Cloth (quantity, spacing, diameter, protective layer thickness etc.) has stringent inspection of quality specification.
Currently, electromagnetic induction principle is widely used both at home and abroad carries out the inspection of the parameters such as reinforcement location, diameter, protective layer thickness
It surveys, electromagnetic field is emitted by electromagnetic induction coil, while receiving influence of the conductive material to electromagnetic field in the magnetic field range, converted
At electrical analog signals, it is converted into digital signal by the processing of operational amplifier circuit, then by analog signal, is divided by processor
Analysis, and will be as the result is shown on liquid crystal display.
However, in the prior art using electromagnetic induction principle in the reinforcing bar radical and protection thickness to intensive bar construction
Precision of degree when being detected be not high, bigger error, therefore, how to accurately identify reinforcing bar radical in intensive bar construction and
The protective layer thickness for detecting bar construction, is this field urgent problem to be solved.
Summary of the invention
The present invention provides a kind of armored concrete bar construction scan method based on electromagnetic induction, to solve existing skill
In art using electromagnetic induction principle to intensive bar construction reinforcing bar radical and protective layer thickness detect when precision
Not high, the problem of bigger error, this method is applied in the scanner including two groups of receiving coils, comprising:
The first peak value platform spacing and groove depth steps are determined according to the energy curve received in scanning process；
Interval error weight is determined according to the groove depth steps；
It is corresponding according to the first peak value platform spacing, the interval error weight and the first peak value platform spacing
Peak value platform energy determine practical reinforcing bar radical in the bar construction.
Preferably, first peak value platform spacing and depth of groove etc. are determined according to the energy curve received in scanning process
Grade, specifically:
Judge whether the variation degree of the energy value on the energy curve under different scanning displacement is less than preset threshold；
It is put down using sweep span corresponding less than the energy value of the preset threshold with variation degree as first peak value
Platform spacing；
Judge that corresponding energy value whether there is downward trend in the first peak value platform spacing；
The groove depth steps are determined according to the decline degree of the downward trend.
Preferably, the interval error weight is determined according to the groove depth steps, specifically:
Pre-establish the mapping relations of the groove depth steps Yu the interval error weight；
The interval error weight is determined according to the mapping relations.
Preferably, according to the first peak value platform spacing, the interval error weight and the first peak value platform
The corresponding peak value platform energy of spacing determines practical reinforcing bar radical in the bar construction, specifically:
The second peak value platform spacing is determined according to the first peak value platform spacing and the interval error weight；
Estimation reinforcing bar radical is determined according to the second peak value platform spacing；
The practical reinforcing bar radical is determined after being modified using the peak value platform energy to the estimation reinforcing bar radical.
Preferably, further includes:
Determine the maximum value of the difference of two groups of received energy values of receiving coil described in the scanning process；
Estimation protective layer thickness is determined according to the maximum value；
The estimation protective layer thickness is repaired using the second peak value platform spacing and the practical reinforcing bar radical
The real protection thickness degree of the bar construction is just being determined afterwards.
Correspondingly, the application also proposed a kind of armored concrete bar construction scanner based on electromagnetic induction, including
Two groups of receiving coils, further includes:
First determining module, for according to the energy curve received in scanning process determine the first peak value platform spacing and
Groove depth steps；
Second determining module, for determining interval error weight according to the groove depth steps；
Third determining module, for according to the first peak value platform spacing, the interval error weight and described the
The corresponding peak value platform energy of one peak value platform spacing determines practical reinforcing bar radical in the bar construction.
Preferably, first determining module, is specifically used for:
Judge whether the variation degree of the energy value on the energy curve under different scanning displacement is less than preset threshold；
It is put down using sweep span corresponding less than the energy value of the preset threshold with variation degree as first peak value
Platform spacing；
Judge that corresponding energy value whether there is downward trend in the first peak value platform spacing；
The groove depth steps are determined according to the decline degree of the downward trend.
Preferably, second determining module, is specifically used for:
Pre-establish the mapping relations of the groove depth steps Yu the interval error weight；
The interval error weight is determined according to the mapping relations.
Preferably, the third determining module, is specifically used for:
The second peak value platform spacing is determined according to the first peak value platform spacing and the interval error weight；
Estimation reinforcing bar radical is determined according to the second peak value platform spacing；
The practical reinforcing bar radical is determined after being modified using the peak value platform energy to the estimation reinforcing bar radical.
Preferably, further include the 4th determining module, be specifically used for:
Determine the maximum value of the difference of two groups of received energy values of receiving coil described in the scanning process；
Estimation protective layer thickness is determined according to the maximum value；
The estimation protective layer thickness is repaired using the second peak value platform spacing and the practical reinforcing bar radical
The real protection thickness degree of the bar construction is just being determined afterwards.
By applying above technical scheme, determined between the first peak value platform according to the energy curve received in scanning process
Away from and groove depth steps, interval error weight is determined according to the groove depth steps, according between the first peak value platform
The bar construction is determined away from, the interval error weight and the corresponding peak value platform energy of the first peak value platform spacing
Middle practical reinforcing bar radical, and protection thickness is estimated by the difference of two groups of received energy values of receiving coil in scanning process
Degree determines bar construction after being modified using the second peak value platform spacing and practical reinforcing bar radical to estimation protective layer thickness
Real protection thickness degree.To accurately identify the protection thickness of reinforcing bar radical and detection bar construction in intensive bar construction
Degree, improves the quality of Scanning Detction.
Detailed description of the invention
Fig. 1 is that a kind of process for armored concrete bar construction scan method based on electromagnetic induction that the application proposes is shown
It is intended to；
Fig. 2 is the received energy curve schematic diagram of unicoil based on scanning single steel bar in the embodiment of the present application；
Fig. 3 is the received energy curve schematic diagram of twin coil based on scanning single steel bar in the embodiment of the present application；
Fig. 4 is the received energy curve schematic diagram of twin coil based on two reinforcing bars of scanning in the embodiment of the present application；
Fig. 5 is a kind of structural representation for armored concrete bar construction scanner based on electromagnetic induction that the application proposes
Figure.
Specific embodiment
As stated in the background art, in the prior art using electromagnetic induction principle in the reinforcing bar radical to intensive bar construction
Precision when being detected with protective layer thickness is not high, bigger error.
To solve the above problems, the embodiment of the present application proposes a kind of armored concrete bar construction based on electromagnetic induction
Scan method accurately identifies the protective layer thickness of the reinforcing bar radical and detection bar construction in intensive bar construction, improves
The quality of Scanning Detction.
As shown in Figure 1, a kind of armored concrete bar construction scan method based on electromagnetic induction proposed for the application
Flow diagram, method includes the following steps:
S101 determines first peak value platform spacing and depth of groove etc. according to the energy curve received in scanning process
Grade.
Specifically, when two receiving coils are by right above reinforcing bar, the energy variation that receives is relative to connecing near and far
Energy variation when from reinforcing bar is small, can to two-way energy and signal carry out derivation, can be used some infinite approach zero value draw
The section for dividing this and signal minor change, can be named as the peak value platform of the secondary measuring signal, and peak value platform is corresponding
Sweep span is then peak value platform spacing.
When the spacing of reinforcing bar is from when being closely gradually increased, peak value platform spacing can become larger therewith, with increase reinforcing bar radical
Effect is identical, but since reinforcing bar at this time has certain spacing, energy signal has small downward trend, and when spacing is enough
The appearance of zero point is also had when big.The position for downward trend occur is ordered as groove, according to the maximum of the corresponding energy of this groove
The difference of value and minimum value, can segment groove depth steps, every groove depth steps correspond to different reinforcing bar operating conditions.Scanner is right
In armored concrete scanning process, different energy values is received in different scanning shifts, to form energy curve, is utilized
Energy curve can determine the first peak value platform spacing and groove depth steps.
Adequately determine the first peak value platform spacing and groove depth steps, in the application preferred embodiment, root
The first peak value platform spacing and groove depth steps are determined according to the energy curve received in scanning process, specifically:
Judge whether the variation degree of the energy value on the energy curve under different scanning displacement is less than preset threshold；
It is put down using sweep span corresponding less than the energy value of the preset threshold with variation degree as first peak value
Platform spacing；
Judge that corresponding energy value whether there is downward trend in the first peak value platform spacing；
The groove depth steps are determined according to the decline degree of the downward trend.
Specifically, when two receiving coils are by right above reinforcing bar, the energy variation that receives is relative to connecing near and far
Energy variation when from reinforcing bar is small, determines that the variation degree of the energy value on energy curve under different scanning displacement is less than default threshold
It is worth corresponding sweep span, as the first peak value platform spacing, and according to corresponding energy in the first peak value platform spacing
The decline degree of the downward trend of value determines the groove depth steps.
Those skilled in the art can determine in different ways according to the actual situation under the variation degree and this of energy value
The decline degree of drop trend, details are not described herein, it should be noted that the scheme of preferred embodiment above is only that the application is mentioned
A kind of specific implementation out, other determine that the mode of the first peak value platform spacing and groove depth steps belongs to the application
Protection scope.
S102 determines interval error weight according to the groove depth steps.
Specifically, in the concrete application scene of the application, peak value platform spacing is by reinforcing bar radical and bar spacing
It influences, increasing reinforcing bar radical and increasing influence of the spacing to peak value platform spacing may be consistent, and need to increase by one at this time
Interval error weight parameter, this parameter is associated with groove depth steps, when groove depth steps are bigger, illustrates between reinforcing bar
There is certain spacing, interval error weight is also bigger, and the peak value platform spacing of more reinforcing bars is bigger；Otherwise groove depth steps
It is small, then illustrate that spacing very little or reinforcing bar between reinforcing bar are in operating condition closely, this time is then smaller away from Error weight, right
The peak value platform spacing answered is also smaller.
It should be noted that those skilled in the art can determine interval error in different ways according to the actual situation
Weight, different methods of determination belong to the protection scope of the application.
For guarantee interval error weight accuracy, in a preferred embodiment of the present application, according to described depth of groove etc.
Grade determines the interval error weight, specifically:
Pre-establish the mapping relations of the groove depth steps Yu the interval error weight；
The interval error weight is determined according to the mapping relations.
Specifically, the mapping relations of groove depth steps Yu interval error weight can be pre-established, closed according to the mapping
System determines the interval error weight.
It should be noted that the scheme of preferred embodiment above is only a kind of specific implementation that the application is proposed,
Other determine that the mode of the interval error weight belongs to the protection scope of the application.
S103, according between the first peak value platform spacing, the interval error weight and the first peak value platform
Practical reinforcing bar radical in the bar construction is determined away from corresponding peak value platform energy.
Specifically, in the concrete application scene of the application, peak value platform energy and reinforcing bar radical and peak value platform spacing
It is closely related, reinforcing bar radical is more, peak value platform spacing is bigger, then energy is bigger, otherwise energy is smaller.It therefore, can basis
First peak value platform spacing, interval error weight and the corresponding peak value platform energy of the first peak value platform spacing determine reinforcing bar knot
Practical reinforcing bar radical in structure.
For the accuracy for guaranteeing determining practical reinforcing bar radical, in the application preferred embodiment, according to described first
Peak value platform spacing, the interval error weight and the corresponding peak value platform energy of the first peak value platform spacing determine institute
Practical reinforcing bar radical in bar construction is stated, specifically:
The second peak value platform spacing is determined according to the first peak value platform spacing and the interval error weight；
Estimation reinforcing bar radical is determined according to the second peak value platform spacing；
The practical reinforcing bar radical is determined after being modified using the peak value platform energy to the estimation reinforcing bar radical.
Specifically, the second peak value platform spacing is determined according to the first peak value platform spacing and interval error weight, according to
Two peak value platform spacing first once estimate reinforcing bar radical, and peak value platform energy is recycled to carry out the reinforcing bar radical of estimation
It can determine practical reinforcing bar radical after amendment.
Wherein, specific estimation and makeover process can be by those skilled in the art based on practical experience in different ways
It carries out, details are not described herein.
It should be noted that the scheme of preferred embodiment above is only a kind of specific implementation that the application is proposed,
Other determine that the mode of practical reinforcing bar radical is equal according to the first peak value platform spacing, interval error weight and peak value platform energy
Belong to the protection scope of the application.
For the protective layer thickness for further determining that reinforcing bar, in the preferred embodiment of the application, further includes:
Determine the maximum value of the difference of two groups of received energy values of receiving coil described in the scanning process；
Estimation protective layer thickness is determined according to the maximum value；
The estimation protective layer thickness is repaired using the second peak value platform spacing and the practical reinforcing bar radical
The real protection thickness degree of the bar construction is just being determined afterwards.
Specifically, determining the maximum value of the difference of two groups of received energy values of receiving coil, can be estimated according to the maximum value
Protective layer thickness out, but this estimation thickness will receive the influence of reinforcing bar radical and bar spacing, and reinforcing bar radical is more, and spacing is got over
Small, the thickness value of estimation is smaller, therefore, using the second peak value platform spacing and practical reinforcing bar radical to estimate protective layer thickness into
It can determine real protection thickness degree after row amendment.Wherein, specific estimation and makeover process can by those skilled in the art according to
Practical experience carries out in different ways, and details are not described herein.
By applying above technical scheme, determined between the first peak value platform according to the energy curve received in scanning process
Away from and groove depth steps, interval error weight is determined according to the groove depth steps, according between the first peak value platform
The bar construction is determined away from, the interval error weight and the corresponding peak value platform energy of the first peak value platform spacing
Middle practical reinforcing bar radical, and protection thickness is estimated by the difference of two groups of received energy values of receiving coil in scanning process
Degree determines bar construction after being modified using the second peak value platform spacing and practical reinforcing bar radical to estimation protective layer thickness
Real protection thickness degree.To accurately identify the protection thickness of reinforcing bar radical and detection bar construction in intensive bar construction
Degree, improves the quality of Scanning Detction.
For the technical idea that the present invention is further explained, now in conjunction with specific application scenarios, to technical side of the invention
Case is illustrated.
The embodiment of the present application provides a kind of armored concrete bar construction scan method based on electromagnetic induction, based on electricity
Magnetic induction principle accurately identifies intensive reinforcing bar radical and detection Minimum Concrete Protective Coating Thickness.
Corresponding scanning theory is described in detail below in conjunction with attached drawing.
It is illustrated in figure 2 the received energy curve signal of unicoil based on scanning single steel bar in the embodiment of the present application
Figure is based on electromagnetic induction principle when scanning single steel bar, the energy value and receive line that scanning instrument for steel bar receiving coil receives
The linear distance for enclosing reinforcing bar is inversely proportional, bigger apart from smaller then energy.In scanning, pass through reinforcing bar surface from the distant to the near
After start far from reinforcing bar, then energy value is gradually reduced first by small increase, the wavy curve of obtained energy value is similar to just
The wavy curve of state distribution, as shown in Figure 2.
It is illustrated in figure 3 the received energy curve signal of twin coil based on scanning single steel bar in the embodiment of the present application
Figure, when being provided with left and right two-way receiving coil spaced apart on scanner, two-way receiving coil passes in succession through reinforcing bar
Top, the energy that front and back two-way receiving coil receives increases in succession, then reduces, as shown in figure 3, the lines pair of different thicknesses
Answer different receiving coils.
It is illustrated in figure 4 the received energy curve signal of twin coil based on two reinforcing bars of scanning in the embodiment of the present application
Figure, when more of reinforcing bar and larger spacing, between two reinforcing bars, front and back two-way receiving coil can obviously detect energy
Decline, as shown in figure 4, the lines of different thicknesses correspond to different receiving coils.
Conventional non-dense set detection is then the energy decline feature decision one that position occurs between reinforcing bar according to receiving coil
Root reinforcing bar, and when the spacing of reinforcing bar is not enough to that receiving coil is allowed to detect the decline of apparent energy, then it will appear a kind of similar
The waveform of single steel bar detection has certain similarity, but the length of entire waveform, energy size with single steel bar detection waveform
Deng can all there is apparent difference.
Relational language involved in the embodiment of the present application, is below illustrated respectively.
Peak value platform spacing: when two receiving coils are by right above reinforcing bar, the energy variation that receives is relative to connecing
Energy variation when near and far is from reinforcing bar is small, can to two-way energy and signal carry out derivation, some infinite approach zero can be used
Value divide the section of this and signal minor change, can be named as the peak value platform of the secondary measuring signal, and peak value platform
Corresponding sweep span is then peak value platform spacing.
Peak value platform spacing is mainly influenced by reinforcing bar radical and bar spacing.When reinforcing bar closely when, there is no between reinforcing bar
Away from influence, reinforcing bar radical is more, then peak value platform spacing is bigger, can obviously distinguish reinforcing bar radical according to peak value platform spacing.
But when at regular intervals between reinforcing bar, peak value platform spacing also be will increase at this time, and the spacing and bar spacing that increase are just
Correlation needs to introduce groove depth steps to distinguish reinforcing bar radical at this time.
Groove depth steps: when the spacing of reinforcing bar is from when being closely gradually increased and the peak value platform spacing of signal can be therewith
Become larger, it is identical as the effect of reinforcing bar radical is increased, but since reinforcing bar at this time has certain spacing, energy signal has small
Downward trend, and the appearance of zero point is also had when spacing is sufficiently large.The position for downward trend occur is ordered as groove, according to this
The maximum value of the corresponding energy of groove and the difference of minimum value, can segment groove depth steps, and every groove depth steps are corresponding different
Reinforcing bar operating condition.
Interval error weight: peak value platform spacing is influenced by reinforcing bar radical and bar spacing, increase reinforcing bar radical and
Increasing influence of the spacing to peak value platform spacing may be consistent, and need to increase an interval error weight parameter at this time, this
Parameter is associated with groove depth steps, when groove depth steps are bigger, illustrates that the spacing for having certain between reinforcing bar, spacing are missed
Poor weight is also bigger, and the peak value platform spacing of more reinforcing bars is bigger；Otherwise groove depth steps are small, then between illustrating between reinforcing bar
It is in operating condition closely away from very little or reinforcing bar, this time is then smaller away from Error weight, and corresponding peak value platform spacing is also got over
It is small.
Peak value platform energy: peak value platform energy is closely related with reinforcing bar radical and peak value platform spacing, and reinforcing bar radical is got over
It is more, peak value platform spacing is bigger, then energy is bigger, otherwise energy is smaller.For example, in the concrete application scene of the application
In, peak value platform spacing of three reinforcing bars closely with two bar spacing 30mm is not much different, but its peak value platform energy is big
Small is 210,000 and 160,000 respectively, can clearly distinguish reinforcing bar radical.
The step of reinforcing bar radical is determined in the embodiment of the present application is as follows:
(1) the first peak value platform spacing, groove depth steps and corresponding are determined according to the energy curve in scanning process
Peak value platform energy；
(2) according to preset mapping relations, interval error weight is determined by groove depth steps；
(3) the second peak value platform spacing is determined according to the first peak value platform spacing and interval error weight；
(4) corresponding relationship that can preset the second peak value platform spacing and reinforcing bar radical, estimates according to the corresponding relationship
Calculate reinforcing bar radical；
(5) according to peak value platform energy to determining actual reinforcing bar radical after estimation reinforcing bar radical amendment.
Wherein, specific estimation and makeover process can be by those skilled in the art based on practical experience in different ways
It carries out, details are not described herein.
Before and after single steel bar position or before and after intensive reinforcing bar peak value platform, due to apart from reinforcement location from the distant to the near or
Person from the near to the distant, the process of an energy dropoff can occur, and this process is Xiang Jijin in the receiving coil of inner left and right two
Capable, the extreme value of a two receiving coil energy difference signals can be found at this time, due to also failing to reach above reinforcing bar at this time, institute
It is smaller with the influence of suffered adjacent reinforcing bar, by the extreme value of this energy difference signal, it can substantially estimate reinforcing bar thickness.But this is counted
Value also will receive the influence of reinforcing bar radical and bar spacing, and reinforcing bar radical is more, and spacing is smaller, and the thickness value of estimation is smaller.?
After determining reinforcing bar radical and the second peak value platform spacing, then the thickness value of estimation can be compensated, to calculate reality
Protective layer thickness.
The step of protective layer thickness is determined in the embodiment of the present application is as follows:
(1) maximum of the difference of two groups of received energy values of receiving coil is determined according to the energy curve in scanning process
Value；
(2) protective layer thickness is estimated according to the maximum value；
(3) steel is determined after being modified using the second peak value platform spacing and practical reinforcing bar radical to estimation protective layer thickness
The real protection thickness degree of muscle structure.
Wherein, specific estimation and makeover process can be by those skilled in the art based on practical experience in different ways
It carries out, details are not described herein.
By applying above technical scheme, determined between the first peak value platform according to the energy curve received in scanning process
Away from and groove depth steps, interval error weight is determined according to the groove depth steps, according between the first peak value platform
The bar construction is determined away from, the interval error weight and the corresponding peak value platform energy of the first peak value platform spacing
Middle practical reinforcing bar radical, and protection thickness is estimated by the difference of two groups of received energy values of receiving coil in scanning process
Degree determines bar construction after being modified using the second peak value platform spacing and practical reinforcing bar radical to estimation protective layer thickness
Real protection thickness degree.To accurately identify the protection thickness of reinforcing bar radical and detection bar construction in intensive bar construction
Degree, improves the quality of Scanning Detction.
In order to reach the above technical purpose, present applicant proposes a kind of uniform sampling measurements of conductor bar internal temperature to set
It is standby, including two groups of receiving coils, it is illustrated in figure 5 a kind of armored concrete reinforcing bar knot based on electromagnetic induction of the application proposition
The structural schematic diagram of structure scanner, comprising:
First determining module 501, for being determined between the first peak value platform according to the energy curve received in scanning process
Away from and groove depth steps；
Second determining module 502, for determining interval error weight according to the groove depth steps；
Third determining module 503, for according to the first peak value platform spacing, the interval error weight and described
The corresponding peak value platform energy of first peak value platform spacing determines practical reinforcing bar radical in the bar construction.
In specific application scenarios, first determining module 501 is specifically used for:
Judge whether the variation degree of the energy value on the energy curve under different scanning displacement is less than preset threshold；
It is put down using sweep span corresponding less than the energy value of the preset threshold with variation degree as first peak value
Platform spacing；
Judge that corresponding energy value whether there is downward trend in the first peak value platform spacing；
The groove depth steps are determined according to the decline degree of the downward trend.
In specific application scenarios, second determining module 502 is specifically used for:
Pre-establish the mapping relations of the groove depth steps Yu the interval error weight；
The interval error weight is determined according to the mapping relations.
In specific application scenarios, the third determining module 503 is specifically used for:
The second peak value platform spacing is determined according to the first peak value platform spacing and the interval error weight；
Estimation reinforcing bar radical is determined according to the second peak value platform spacing；
The practical reinforcing bar radical is determined after being modified using the peak value platform energy to the estimation reinforcing bar radical.
In specific application scenarios, further includes the 4th determining module, is specifically used for:
Determine the maximum value of the difference of two groups of received energy values of receiving coil described in the scanning process；
Estimation protective layer thickness is determined according to the maximum value；
The estimation protective layer thickness is repaired using the second peak value platform spacing and the practical reinforcing bar radical
The real protection thickness degree of the bar construction is just being determined afterwards.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can lead to
Hardware realization is crossed, the mode of necessary general hardware platform can also be added to realize by software.Based on this understanding, this hair
Bright technical solution can be embodied in the form of software products, which can store in a non-volatile memories
In medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including making a computer equipment (can be in the form of some instructions
It is personal computer, server or the network equipment etc.) execute method described in each implement scene of the present invention.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or
Process is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device can describe to be distributed in implement scene according to implement scene
Device in, can also carry out corresponding change be located at different from this implement scene one or more devices in.Above-mentioned implementation field
The module of scape can be merged into a module, can also be further split into multiple submodule.
Aforementioned present invention serial number is for illustration only, does not represent the superiority and inferiority of implement scene.
Disclosed above is only several specific implementation scenes of the invention, and still, the present invention is not limited to this, Ren Heben
What the technical staff in field can think variation should all fall into protection scope of the present invention.
Claims (10)
1. a kind of armored concrete bar construction scan method based on electromagnetic induction, which is characterized in that be applied to include two groups
In the scanner of receiving coil, which comprises
The first peak value platform spacing and groove depth steps are determined according to the energy curve received in scanning process；
Interval error weight is determined according to the groove depth steps；
According to the first peak value platform spacing, the interval error weight and the corresponding peak of the first peak value platform spacing
Value platform energy determines practical reinforcing bar radical in the bar construction.
2. the method as described in claim 1, which is characterized in that determine first according to the energy curve received in scanning process
Peak value platform spacing and groove depth steps, specifically:
Judge whether the variation degree of the energy value on the energy curve under different scanning displacement is less than preset threshold；
Using sweep span corresponding less than the energy value of the preset threshold with variation degree as between the first peak value platform
Away from；
Judge that corresponding energy value whether there is downward trend in the first peak value platform spacing；
The groove depth steps are determined according to the decline degree of the downward trend.
3. the method as described in claim 1, which is characterized in that determine that the interval error is weighed according to the groove depth steps
Weight, specifically:
Pre-establish the mapping relations of the groove depth steps Yu the interval error weight；
The interval error weight is determined according to the mapping relations.
4. the method as described in claim 1, which is characterized in that according to the first peak value platform spacing, the interval error
Weight and the corresponding peak value platform energy of the first peak value platform spacing determine practical reinforcing bar radical in the bar construction,
Specifically:
The second peak value platform spacing is determined according to the first peak value platform spacing and the interval error weight；
Estimation reinforcing bar radical is determined according to the second peak value platform spacing；
The practical reinforcing bar radical is determined after being modified using the peak value platform energy to the estimation reinforcing bar radical.
5. method as claimed in claim 4, which is characterized in that further include:
Determine the maximum value of the difference of two groups of received energy values of receiving coil described in the scanning process；
Estimation protective layer thickness is determined according to the maximum value；
After being modified using the second peak value platform spacing and the practical reinforcing bar radical to the estimation protective layer thickness
Determine the real protection thickness degree of the bar construction.
6. a kind of armored concrete bar construction scanner based on electromagnetic induction, which is characterized in that including two groups of receiving coils,
Further include:
First determining module, for determining the first peak value platform spacing and groove according to the energy curve received in scanning process
Depth levels；
Second determining module, for determining interval error weight according to the groove depth steps；
Third determining module, for according to the first peak value platform spacing, the interval error weight and the first peak
The corresponding peak value platform energy of value platform spacing determines practical reinforcing bar radical in the bar construction.
7. scanner as claimed in claim 6, which is characterized in that first determining module is specifically used for:
Judge whether the variation degree of the energy value on the energy curve under different scanning displacement is less than preset threshold；
Using sweep span corresponding less than the energy value of the preset threshold with variation degree as between the first peak value platform
Away from；
Judge that corresponding energy value whether there is downward trend in the first peak value platform spacing；
The groove depth steps are determined according to the decline degree of the downward trend.
8. scanner as claimed in claim 6, which is characterized in that second determining module is specifically used for:
Pre-establish the mapping relations of the groove depth steps Yu the interval error weight；
The interval error weight is determined according to the mapping relations.
9. scanner as claimed in claim 6, which is characterized in that the third determining module is specifically used for:
The second peak value platform spacing is determined according to the first peak value platform spacing and the interval error weight；
Estimation reinforcing bar radical is determined according to the second peak value platform spacing；
The practical reinforcing bar radical is determined after being modified using the peak value platform energy to the estimation reinforcing bar radical.
10. scanner as claimed in claim 9, which is characterized in that further include the 4th determining module, be specifically used for:
Determine the maximum value of the difference of two groups of received energy values of receiving coil described in the scanning process；
Estimation protective layer thickness is determined according to the maximum value；
After being modified using the second peak value platform spacing and the practical reinforcing bar radical to the estimation protective layer thickness
Determine the real protection thickness degree of the bar construction.
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