CN107179556A - Forward probe method, system and the electronic equipment of a kind of nuclear magnetic resonance - Google Patents
Forward probe method, system and the electronic equipment of a kind of nuclear magnetic resonance Download PDFInfo
- Publication number
- CN107179556A CN107179556A CN201710444249.5A CN201710444249A CN107179556A CN 107179556 A CN107179556 A CN 107179556A CN 201710444249 A CN201710444249 A CN 201710444249A CN 107179556 A CN107179556 A CN 107179556A
- Authority
- CN
- China
- Prior art keywords
- detectable signal
- magnetic resonance
- nuclear magnetic
- advance
- kernel function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01V3/14—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electron or nuclear magnetic resonance
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses forward probe method, system and the electronic equipment of a kind of nuclear magnetic resonance, wherein, the forward probe method of the nuclear magnetic resonance includes：Obtain the current detectable signal of nuclear magnetic resonance device；The kernel function distributed intelligence of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling；According to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and the water-bearing layer prior information being obtained ahead of time, the porous media in the front of tunnel heading region is obtained.The present invention solves the not high technical problem of precision for the water body distribution situation that there is detection in the prior art.
Description
Technical field
The present invention relates to technical field of geophysical exploration, more particularly to a kind of nuclear magnetic resonance forward probe method, be
System and electronic equipment.
Background technology
Nuclear magnetic resonance Bathymetric Technology (Nuclear Magnetic Resonance NMR) has metrical information rich due to it
The features such as richness, direct explanation, it is widely used in Exploration Domain.
In the prior art, when being explored using NMR technology, the large-scale underground engineering such as tunnel, tunnel, mine,
In order to ensure security, the detection of heading end, which needs to be segmented, to be carried out, and the distance that heading end advances is less than investigation depth, Ran Houtong
Cross and the information of each detection of heading end is analyzed and calculated, so as to obtain the distribution situation of water body.
Present inventor has found that at least there are the following problems in the prior art when realizing technical scheme：
Existing method is individually analyzed and calculated to the information of each detection of heading end, so as to obtain the distribution feelings of water body
Condition, and ignore the association between each detection information, therefore cause the precision of water body distribution situation drawn not high.
It can be seen that, the detection method of prior art is in the presence of the not high technical problem of the precision of the water body distribution situation of detection.
The content of the invention
The embodiment of the present invention provides a kind of forward probe method, system and the electronic equipment of nuclear magnetic resonance, existing to solve
There is the not high technical problem of the precision for the water body distribution situation that there is detection in technology.
First aspect present invention provides a kind of forward probe method of nuclear magnetic resonance, and methods described includes：
Obtain the current detectable signal of nuclear magnetic resonance device；
The kernel function distributed intelligence of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling；
According to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and containing of being obtained ahead of time
Water layer prior information, obtains the porous media in the front of tunnel heading region.
The forward probe method for the nuclear magnetic resonance that the present invention is provided, it is described that the core is obtained according to nuclear magnetic resonance forward modelling
The kernel function distributed intelligence of the receiving coil of magnetic resonance device, including：
The resistivity environment in the tunnel is obtained in advance；
According to the resistivity environment, the kernel function for obtaining each receiving coil using nuclear magnetic resonance forward modelling is distributed,
Forward modelling method is specially：
Wherein, qiIt is current duration t and current amplitude I in transmitting coil for excitation pulse square0Product；For meter
Calculate point position；ForMesh volume at position；The forward direction of the perpendicualr field somewhere produced for excitation variable winding point
Amount；The reverse component of the imaginary vertical somewhere produced for receiving coil；Respectively swash
Hair and receiving coil somewhere produce the phase of vertical magnetic field； Respectively stationary magnetic field, exciting field vertical component,
The unit vector of the vertical component of receiving coil fictitious magnetic field somewhere；
The kernel function of each receiving coil is distributed and merged, amalgamation result is obtained, institute is used as using the amalgamation result
State kernel function distributed intelligence.
The forward probe method for the nuclear magnetic resonance that the present invention is provided, described according to the current detectable signal, the core
Function distributed intelligence, advance detectable signal and the porous media being obtained ahead of time, obtain containing for the front of tunnel heading region
Before the distribution of water rate, in addition to：
Obtain the noise signal for detecting obtain in advance；
Using the noise signal as advance detectable signal a part.
The forward probe method for the nuclear magnetic resonance that the present invention is provided, it is described according to the current detectable signal, the core letter
Number distributed intelligence, advance detectable signal and the porous media being obtained ahead of time, obtain the aqueous of the front of tunnel heading region
Rate is distributed, and specifically includes：
The kernel function distributed intelligence is decomposed, decomposition amount is obtained；
Inverting is carried out to the decomposition amount, the advance detectable signal and the porous media being obtained ahead of time, obtains anti-
Result is drilled, using the inversion result as the porous media in the front of tunnel heading region, wherein inversion formula is specially：
Wherein, mestFor inversion result, K1、K2、K3、 K4
For decomposition amount, d1、d2For advance detectable signal, m1、m2To detect the porous media of acquisition, d before3For current detection letter
Number.
Based on first aspect identical inventive concept, second aspect of the present invention provide a kind of nuclear magnetic resonance advanced spy
Examining system, the system includes：
First obtains module, the current detectable signal for obtaining nuclear magnetic resonance device；
Computing module, the core letter of the receiving coil for obtaining the nuclear magnetic resonance device according to nuclear magnetic resonance forward modelling
Number distributed intelligence；
Second obtains module, for being believed according to the current detectable signal, the kernel function distributed intelligence, advance detection
Number and the porous media that is obtained ahead of time, obtain the porous media in the front of tunnel heading region.
In the forward probe system for the nuclear magnetic resonance that the present invention is provided, the computing module is additionally operable to：
The resistivity environment in the tunnel is obtained in advance；
According to the resistivity environment, the kernel function for obtaining each receiving coil using nuclear magnetic resonance forward modelling is distributed,
Forward modelling method is specially：
Wherein, qiIt is current duration t and current amplitude I in transmitting coil for excitation pulse square0Product；For meter
Calculate point position；ForMesh volume at position；The forward direction of the perpendicualr field somewhere produced for excitation variable winding point
Amount；The reverse component of the imaginary vertical somewhere produced for receiving coil；Respectively swash
Hair and receiving coil somewhere produce the phase of vertical magnetic field； Respectively stationary magnetic field, exciting field vertical component,
The unit vector of the vertical component of receiving coil fictitious magnetic field somewhere；
The kernel function of each receiving coil is distributed and merged, amalgamation result is obtained, institute is used as using the amalgamation result
State kernel function distributed intelligence.
In the forward probe system for the nuclear magnetic resonance that the present invention is provided, the system also includes processing module, the processing
Module is used for：Obtained described according to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and in advance
Before the porous media obtained, the porous media for obtaining the front of tunnel heading region,
Obtain the noise signal for detecting obtain in advance；
Using the noise signal as advance detectable signal a part.
In the forward probe system for the nuclear magnetic resonance that the present invention is provided, the second acquisition module is additionally operable to：
The kernel function distributed intelligence is decomposed, decomposition amount is obtained；
Inverting is carried out to the decomposition amount, the advance detectable signal and the porous media being obtained ahead of time, obtains anti-
Result is drilled, using the inversion result as the porous media in the front of tunnel heading region, wherein inversion formula is specially：
Wherein, mestFor inversion result, K1、K2、K3、 K4
For decomposition amount, d1、d2For advance detectable signal, m1、m2The porous media being obtained ahead of time, d3For current detectable signal.
Based on first aspect identical inventive concept, third aspect present invention provides a kind of electronic equipment, including deposits
Reservoir, processor and storage on a memory and the computer program that can run on a processor, described in the computing device
Following steps are realized during program：
Obtain the current detectable signal of nuclear magnetic resonance device；
The kernel function distributed intelligence of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling；
According to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and containing of being obtained ahead of time
Water rate is distributed, and obtains the porous media in the front of tunnel heading region.
The one or more technical schemes provided in the embodiment of the present invention, have at least the following technical effects or advantages：
The forward probe method of a kind of nuclear magnetic resonance disclosed by the invention, by the current detection for obtaining nuclear magnetic resonance device
Signal；And the kernel function distributed intelligence of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling；So
Afterwards according to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and the moisture content point being obtained ahead of time
Cloth, obtains the porous media in the front of tunnel heading region.Due in nuclear magnetic resonance forward probe method is carried out, calculating
During the porous media in tunnel, the detectable signal being obtained ahead of time and the porous media being obtained ahead of time are make use of, is taken into full account
Each association between detectable signal and result of detection, it is possible to the duplicate message that comprehensive utilization is repeatedly measured, is not increasing spy
In the case of surveying workload, the accuracy and validity of detection can be lifted, so as to obtain accurate water body distribution situation, is solved
There is the high technical problem of precision of the water body distribution situation of detection in the detection method of prior art.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of the forward probe method of nuclear magnetic resonance in the embodiment of the present invention；
Fig. 2 is a kind of structure chart of the forward probe system of nuclear magnetic resonance in the embodiment of the present invention；
Fig. 3 is the detection mode figure of the forward probe method of nuclear magnetic resonance in the embodiment of the present invention；
Fig. 4 is the position view of detection mode Kernel Function in Fig. 3；
The structure chart for a kind of electronic equipment that Fig. 5 provides for the present invention.
Embodiment
The embodiment of the present invention provides a kind of forward probe method, system and the electronic equipment of nuclear magnetic resonance, existing to solve
There is the not high technical problem of the precision for the water body distribution situation that there is detection in technology.
Technical scheme in the embodiment of the present application, general thought is as follows：
A kind of forward probe method of nuclear magnetic resonance, methods described includes：The current spy of nuclear magnetic resonance device is obtained first
Survey signal；And the kernel function distributed intelligence of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling；
Then according to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and the water-bearing layer being obtained ahead of time
Prior information, obtains the porous media in the front of tunnel heading region.
In the above method, due in nuclear magnetic resonance forward probe method is carried out, when calculating the porous media in tunnel,
The detectable signal being obtained ahead of time and the porous media being obtained ahead of time are make use of, has taken into full account that each detectable signal and detection are tied
Association between fruit, it is possible to the duplicate message that repeatedly measures of comprehensive utilization, can be with the case where not increasing detection operations amount
The accuracy and validity of detection are lifted, so as to obtain accurate water body distribution situation, the detection method of prior art is solved
The not high technical problem of precision in the presence of the water body distribution situation of detection.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment one
A kind of forward probe method of nuclear magnetic resonance is present embodiments provided, Fig. 1 is referred to, methods described includes：
Step S101：Obtain the current detectable signal of nuclear magnetic resonance device；
Step S102：The kernel function point of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling
Cloth information；
Step S103：According to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and in advance
The porous media of acquisition, obtains the porous media in the front of tunnel heading region.
In the above method, due in nuclear magnetic resonance forward probe method is carried out, when calculating the porous media in tunnel,
The detectable signal being obtained ahead of time and the porous media being obtained ahead of time are make use of, has taken into full account that each detectable signal and detection are tied
Association between fruit, it is possible to the duplicate message that repeatedly measures of comprehensive utilization, can be with the case where not increasing detection operations amount
The accuracy and validity of detection are lifted, so as to obtain accurate water body distribution situation, the detection method of prior art is solved
The not high technical problem of precision in the presence of the water body distribution situation of detection.
It should be noted that above-mentioned steps S101 and step S102 execution sequence are in no particular order, can first carry out step
S101 or first carry out step S102.
Below, described in detail with reference to the forward probe method of Fig. 1 nuclear magnetic resonance provided the application：
First, step S101 is performed, the current detectable signal of nuclear magnetic resonance device is obtained.
In specific implementation process, it can be detected using nuclear magnetic resonance device, nuclear magnetic resonance device is used and excited
The mode that coil and receiving coil are separated, and because the space of detection is generally narrow tunnel or mine, receiving coil is adopted
Use less coil.
Then step S102 is performed：The receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling
Kernel function distributed intelligence.
Specifically, the kernel function of the receiving coil that the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling
Distributed intelligence, including：
The resistivity environment in the tunnel is obtained in advance；
According to the resistivity environment, the kernel function for obtaining each receiving coil using nuclear magnetic resonance forward modelling is distributed,
Forward modelling method is specially：
Wherein, qiIt is current duration t and current amplitude I in transmitting coil for excitation pulse square0Product；For meter
Calculate point position；ForMesh volume at position；The forward direction of the perpendicualr field somewhere produced for excitation variable winding point
Amount；The reverse component of the imaginary vertical somewhere produced for receiving coil；Respectively swash
Hair and receiving coil somewhere produce the phase of vertical magnetic field； Respectively stationary magnetic field, exciting field vertical component,
The unit vector of the vertical component of receiving coil fictitious magnetic field somewhere；
The kernel function of each receiving coil is distributed and merged, amalgamation result is obtained, institute is used as using the amalgamation result
State kernel function distributed intelligence.
During concrete implementation, it can be provided according to the method for spot sampling measurement or directly using the detection of early stage
Material, determines the resistivity around tunnel, then obtains kernel function distribution through nuclear magnetic resonance forward modelling according to resistivity；It is specific next
Say, in order to which the kernel function for obtaining diverse location is distributed, typically using multiple receiving coils, each receiving coil is distributed in tunnel
Diverse location, it is above-mentionedWhat is represented is when the excitation pulse square of excitation variable winding is qiWhen, it is located undergroundThe core letter of position
Number.When actually calculating, the underground space (i.e. tunnel) can be carried out to gridding, distribution calculates the core letter on each grid node
Number,Represent the position of j-th of grid node.Deng circular be：
Wherein：
Wherein：Above-mentioned above parameter can be tried to achieve by finite element algorithm.
Finally perform step S103：According to the current detectable signal, the kernel function distributed intelligence, advance detection letter
Number and the porous media that is obtained ahead of time, obtain the porous media in the front of tunnel heading region.
Specifically, it is described according to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and pre-
The porous media first obtained, obtains the porous media in the front of tunnel heading region, specifically includes：
The kernel function distributed intelligence is decomposed, decomposition amount is obtained；
Inverting is carried out to the decomposition amount, the advance detectable signal and the porous media being obtained ahead of time, obtains anti-
Result is drilled, using the inversion result as the porous media in the front of tunnel heading region, wherein inversion formula is specially：
Wherein, mestFor inversion result, K1、K2、K3、 K4
For decomposition amount, d1、d2For advance detectable signal, m1、m2To detect the porous media of acquisition, d before3For current detection letter
Number.
Alternatively, in order to further improve the precision of result of detection, described according to the current detectable signal, the core
Function distributed intelligence, advance detectable signal and the porous media being obtained ahead of time, obtain containing for the front of tunnel heading region
Before the distribution of water rate, in addition to：
Obtain the noise signal for detecting obtain in advance；
Using the noise signal as advance detectable signal a part.
In specific implementation process, noise signal can be obtained by the way of coil is arranged vertically.
In order to introduce a kind of forward probe method of nuclear magnetic resonance provided in an embodiment of the present invention in more detail, below by
Specific example is illustrated.
Fig. 3 is referred to, the detection of heading end is that segmentation is carried out, and the distance that heading end advances is less than investigation depth, and right
During the calculating for the information that heading end is obtained, the length of zoning can be more than investigation depth, for example, this implementation Li Zhong heading ends
Investigation depth is 75m, and the distance that heading end advances is 25m, and the length of zoning is often advanced 25m for 100m, i.e. heading end, real
The length that border is calculated is 100m, can so be caused before driving every time, the region to be tunneled in front of heading end will be multiple by early stage
Detection is covered, and the information for being covered region in each measurement by repetition detection can not be comprehensively utilized in existing method, is caused
The precision of obtained water body distribution situation is not high, and causes redundancy and the waste of investigation and prospecting.In the present embodiment, face
Front 0-25m scope can all be covered by 3 measurements, and 25-50m scope can be covered by 2 measurements.
For continuous three times observation, the zoning of its kernel function is all with 100 meters in front of coil of region.Such as Fig. 4
Shown, the detecting strategy includes three coils：Coil 1, coil 2 and coil 3, by taking coil 3 as an example, its two-dimentional kernel function is existed
Horizontal direction is decomposed into K1To K4.For coil 1 to coil 3, because local electric condition is substantially similar, then their kernel function
The distribution of size and opposed coil is all identical, therefore when coil 2 is excited, K1To K4Positioned at m2To m5Position；When coil 1 is excited
When, K1To K4Positioned at m1To m4Position, can then obtain following formula：
Wherein, d1For the detectable signal of first time, m1-m4The porous media drawn for coil 1, n1To detect for the first time
Noise signal, d2For secondary detectable signal, m2-m5The porous media drawn for coil 2, n2For second of detection
Noise signal, d3For the detectable signal of third time, as when previous detectable signal, m3-m6The moisture content point drawn for coil 3
Cloth, n3For the noise signal detected for the third time.
When coil 3 is measured, due to m1、m2Region has been excavated and surveyed, the preceding result that detects twice be, it is known that
So above-mentioned formula (1)-(3) can be integrated into following form：
Then visit advanced to nuclear magnetic resonance carries out inverting, can obtain inversion result：
Embodiment two
Based on the inventive concept same with embodiment one, the embodiment of the present invention two provides a kind of advanced spy of nuclear magnetic resonance
Examining system, refers to Fig. 2, and the system includes：
First obtains mould, 201, the current detectable signal for obtaining nuclear magnetic resonance device；
Computing module 202, for the receiving coil according to the nuclear magnetic resonance forward modelling acquisition nuclear magnetic resonance device
Kernel function distributed intelligence；
Second obtains module 203, for according to the current detectable signal, the kernel function distributed intelligence, advance spy
Signal and the porous media being obtained ahead of time are surveyed, the porous media in the front of tunnel heading region is obtained.
In the forward probe system of nuclear magnetic resonance provided in an embodiment of the present invention, the computing module 202 is additionally operable to：
The resistivity environment in the tunnel is obtained in advance；
According to the resistivity environment, the kernel function for obtaining each receiving coil using nuclear magnetic resonance forward modelling is distributed,
Forward modelling method is specially：
Wherein, qiIt is current duration t and current amplitude I in transmitting coil for excitation pulse square0Product；For meter
Calculate point position；ForMesh volume at position；The forward direction of the perpendicualr field somewhere produced for excitation variable winding point
Amount；The reverse component of the imaginary vertical somewhere produced for receiving coil；Respectively swash
Hair and receiving coil somewhere produce the phase of vertical magnetic field； Respectively stationary magnetic field, exciting field vertical component,
The unit vector of the vertical component of receiving coil fictitious magnetic field somewhere；
The kernel function of each receiving coil is distributed and merged, amalgamation result is obtained, institute is used as using the amalgamation result
State kernel function distributed intelligence.
In the forward probe system of nuclear magnetic resonance provided in an embodiment of the present invention, the system also includes processing module, institute
Stating processing module is used for：It is described according to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and
Before the porous media being obtained ahead of time, the porous media for obtaining the front of tunnel heading region,
Obtain the noise signal for detecting obtain in advance；
Using the noise signal as advance detectable signal a part.
In the forward probe system of nuclear magnetic resonance provided in an embodiment of the present invention, the second acquisition module 203 is also used
In：
The kernel function distributed intelligence is decomposed, decomposition amount is obtained；
Inverting is carried out to the decomposition amount, the advance detectable signal and the porous media being obtained ahead of time, obtains anti-
Result is drilled, using the inversion result as the porous media in the front of tunnel heading region, wherein inversion formula is specially：
Wherein, mestFor inversion result, K1、K2、K3、 K4
For decomposition amount, d1、d2For advance detectable signal, m1、m2To detect the porous media of acquisition, d before3For current detection letter
Number.
The various change mode and instantiation of the forward probe method of nuclear magnetic resonance in embodiment one are equally applicable to
The forward probe system of the nuclear magnetic resonance of the present embodiment, by the detailed description of the foregoing forward probe method to nuclear magnetic resonance,
Those skilled in the art be clear that in the present embodiment in nuclear magnetic resonance forward probe system, so in order to illustrate
Book it is succinct, will not be described in detail herein.
Embodiment three
Based on the inventive concept same with embodiment one, the embodiment of the present invention three provides a kind of electronic equipment, referred to
Fig. 5, including memory 301, processor 302 and are stored in the computer journey that can be run on memory 301 and on processor 302
Sequence, the processor 302 realizes following steps when performing described program：
Obtain the current detectable signal of nuclear magnetic resonance device；
The kernel function distributed intelligence of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling；
According to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and containing of being obtained ahead of time
Water rate is distributed, and obtains the porous media in the front of tunnel heading region.
For convenience of description, Fig. 5 illustrate only the part related to the embodiment of the present invention, and particular technique details is not disclosed
, it refer to present invention method part.Wherein, memory 301 can be used for storage software program and module, processor
302 perform the software program and module that are stored in memory 301 by running, so that the various functions for performing mobile terminal should
With and data processing.
Memory 301 can mainly include storing program area and storage data field, wherein, storing program area can store operation system
Application program needed for system, at least one function etc.；Storage data field can be stored uses created number according to electronic equipment
According to etc..The control centre of the mobile communication terminal of processor 302, utilizes various interfaces and the whole mobile communication terminal of connection
Various pieces, by operation or perform and are stored in software program and/or module in memory 301, and call and be stored in
Data in reservoir 301, perform the various functions and processing data of mobile phone, so as to carry out overall prison to mobile phone
Control.Optionally, processor 302 may include one or more processing units.
The various change mode and instantiation of the forward probe method of nuclear magnetic resonance in embodiment one are equally applicable to
The electronic equipment of the present embodiment, passes through the detailed description of the foregoing forward probe method to nuclear magnetic resonance, those skilled in the art
The electronic equipment for the nuclear magnetic resonance being clear that in the present embodiment, thus it is succinct for specification, it is no longer detailed herein
State.
The one or more technical schemes provided in the embodiment of the present invention, have at least the following technical effects or advantages：
The forward probe method of a kind of nuclear magnetic resonance disclosed by the invention, by the current detection for obtaining nuclear magnetic resonance device
Signal；And the kernel function distributed intelligence of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling；So
Afterwards according to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and the moisture content point being obtained ahead of time
Cloth, obtains the porous media in the front of tunnel heading region.Due in nuclear magnetic resonance forward probe method is carried out, calculating
During the porous media in tunnel, the detectable signal being obtained ahead of time and the porous media being obtained ahead of time are make use of, is taken into full account
Each association between detectable signal and result of detection, it is possible to the duplicate message that comprehensive utilization is repeatedly measured, is not increasing spy
In the case of surveying workload, the accuracy and validity of detection can be lifted, so as to obtain accurate water body distribution situation, is solved
There is the high technical problem of precision of the water body distribution situation of detection in the detection method of prior art.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.So, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to comprising including these changes and modification.
Claims (9)
1. a kind of forward probe method of nuclear magnetic resonance, it is characterised in that methods described includes：
Obtain the current detectable signal of nuclear magnetic resonance device；
The kernel function distributed intelligence of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling；
According to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and water-bearing layer prior information, obtain
Obtain the porous media in the front of tunnel heading region.
2. the method as described in claim 1, it is characterised in that described to be total to according to the nuclear magnetic resonance forward modelling acquisition nuclear-magnetism
The kernel function distributed intelligence of the receiving coil of vibrating device, including：
The resistivity environment in the tunnel is obtained in advance；
According to the resistivity environment, the kernel function for obtaining each receiving coil using nuclear magnetic resonance forward modelling is distributed, forward modeling
Computational methods are specially：
Wherein, qiIt is current duration t and current amplitude I in transmitting coil for excitation pulse square0Product；To calculate point
Position；ForMesh volume at position；The forward component of the perpendicualr field somewhere produced for excitation variable winding；The reverse component of the imaginary vertical somewhere produced for receiving coil；Respectively excite and
Receiving coil somewhere produces the phase of vertical magnetic field； Respectively stationary magnetic field, exciting field vertical component, reception
The unit vector of the vertical component of coil fictitious magnetic field somewhere；
The kernel function of each receiving coil is distributed and merged, amalgamation result is obtained, the core is used as using the amalgamation result
Function distributed intelligence.
3. the method as described in claim 1, it is characterised in that described according to the current detectable signal, the kernel function
Distributed intelligence, advance detectable signal and the water-bearing layer prior information being obtained ahead of time, obtain containing for the front of tunnel heading region
Before the distribution of water rate, in addition to：
Obtain the noise signal for detecting obtain in advance；
Using the noise signal as advance detectable signal a part.
4. the method as described in claim 1, it is characterised in that described according to the current detectable signal, the kernel function point
Cloth information, advance detectable signal and the water-bearing layer prior information being obtained ahead of time, obtain the aqueous of the front of tunnel heading region
Rate is distributed, and specifically includes：
The kernel function distributed intelligence is decomposed, decomposition amount is obtained；
Inverting is carried out to the decomposition amount, the advance detectable signal and the porous media being obtained ahead of time, inverting knot is obtained
Really, using the inversion result as the porous media in the front of tunnel heading region, wherein inversion formula is specially：
Wherein, mestFor inversion result, K1、K2、K3、K4To divide
Xie Liang, d1、d2For advance detectable signal, m1、m2The porous media being obtained ahead of time, d3For current detectable signal.
5. the forward probe system of a kind of nuclear magnetic resonance, it is characterised in that the system includes：
First obtains module, the current detectable signal for obtaining nuclear magnetic resonance device；
Computing module, the kernel function point of the receiving coil for obtaining the nuclear magnetic resonance device according to nuclear magnetic resonance forward modelling
Cloth information；
Second obtain module, for according to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and
The porous media being obtained ahead of time, obtains the porous media in the front of tunnel heading region.
6. system as claimed in claim 5, it is characterised in that the computing module is additionally operable to：
The resistivity environment in the tunnel is obtained in advance；
According to the resistivity environment, the kernel function for obtaining each receiving coil using nuclear magnetic resonance forward modelling is distributed, forward modeling
Computational methods are specially：
Wherein, qiIt is current duration t and current amplitude I in transmitting coil for excitation pulse square0Product；To calculate point
Position；ForMesh volume at position；The forward component of the perpendicualr field somewhere produced for excitation variable winding；The reverse component of the imaginary vertical somewhere produced for receiving coil；Respectively excite and
Receiving coil somewhere produces the phase of vertical magnetic field； Respectively stationary magnetic field, exciting field vertical component, reception
The unit vector of the vertical component of coil fictitious magnetic field somewhere；
The kernel function of each receiving coil is distributed and merged, amalgamation result is obtained, the core is used as using the amalgamation result
Function distributed intelligence.
7. system as claimed in claim 5, it is characterised in that the system also includes processing module, the processing module is used
In：Described according to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and containing of being obtained ahead of time
Before water layer prior information, the porous media for obtaining the front of tunnel heading region, the noise letter for detecting obtain in advance is obtained
Number；
Using the noise signal as advance detectable signal a part.
8. system as claimed in claim 5, it is characterised in that the second acquisition module is additionally operable to：
The kernel function distributed intelligence is decomposed, decomposition amount is obtained；
Inverting is carried out to the decomposition amount, the advance detectable signal and the porous media for detecting acquisition before, obtains anti-
Result is drilled, using the inversion result as the porous media in the front of tunnel heading region, wherein inversion formula is specially：
Wherein, mestFor inversion result, K1、K2、K3、K4To divide
Xie Liang, d1、d2For advance detectable signal, m1、m2To detect the porous media of acquisition, d before3For current detectable signal.
9. a kind of electronic equipment, including memory, processor and storage are on a memory and the calculating that can run on a processor
Machine program, it is characterised in that realize following steps during the computing device described program：
Obtain the current detectable signal of nuclear magnetic resonance device；
The kernel function distributed intelligence of the receiving coil of the nuclear magnetic resonance device is obtained according to nuclear magnetic resonance forward modelling；
According to the current detectable signal, the kernel function distributed intelligence, advance detectable signal and the water-bearing layer being obtained ahead of time
Prior information, obtains the porous media in the front of tunnel heading region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444249.5A CN107179556B (en) | 2017-06-13 | 2017-06-13 | A kind of forward probe method, system and the electronic equipment of nuclear magnetic resonance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444249.5A CN107179556B (en) | 2017-06-13 | 2017-06-13 | A kind of forward probe method, system and the electronic equipment of nuclear magnetic resonance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107179556A true CN107179556A (en) | 2017-09-19 |
| CN107179556B CN107179556B (en) | 2019-05-10 |
Family
ID=59836388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710444249.5A Active CN107179556B (en) | 2017-06-13 | 2017-06-13 | A kind of forward probe method, system and the electronic equipment of nuclear magnetic resonance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107179556B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515131A (en) * | 2019-08-13 | 2019-11-29 | 吉林大学 | A kind of ground magnetic resonance inversion method based on time lapse technique |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120074934A1 (en) * | 2010-09-29 | 2012-03-29 | Derrick Green | Nmr measurements and methods of analyzing nmr data |
| WO2012103397A3 (en) * | 2011-01-28 | 2012-10-04 | Schlumberger Technology B.V. | Two dimensional nmr of diffusion and relaxation for material characterization |
| CN104199114A (en) * | 2014-09-03 | 2014-12-10 | 长安大学 | Transient electromagnetic and nuclear magnetic resonance joint interpretation based tunnel advanced prediction technology |
| CN106707351A (en) * | 2017-01-11 | 2017-05-24 | 吉林大学 | Advanced detection magnetic resonance device system for TMB construction tunnel |
| CN106772645A (en) * | 2016-12-15 | 2017-05-31 | 中国石油大学(北京) | Nuclear magnetic resonance data inversion method and device based on the constraint of general prior information |
-
2017
- 2017-06-13 CN CN201710444249.5A patent/CN107179556B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120074934A1 (en) * | 2010-09-29 | 2012-03-29 | Derrick Green | Nmr measurements and methods of analyzing nmr data |
| WO2012103397A3 (en) * | 2011-01-28 | 2012-10-04 | Schlumberger Technology B.V. | Two dimensional nmr of diffusion and relaxation for material characterization |
| CN104199114A (en) * | 2014-09-03 | 2014-12-10 | 长安大学 | Transient electromagnetic and nuclear magnetic resonance joint interpretation based tunnel advanced prediction technology |
| CN106772645A (en) * | 2016-12-15 | 2017-05-31 | 中国石油大学(北京) | Nuclear magnetic resonance data inversion method and device based on the constraint of general prior information |
| CN106707351A (en) * | 2017-01-11 | 2017-05-24 | 吉林大学 | Advanced detection magnetic resonance device system for TMB construction tunnel |
Non-Patent Citations (1)
| Title |
|---|
| 张楠: "核磁共振探测隧道掌子面前方含水体方法及应用研究", 《中国优秀硕士学位论文全文数据库•工程科技Ⅱ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515131A (en) * | 2019-08-13 | 2019-11-29 | 吉林大学 | A kind of ground magnetic resonance inversion method based on time lapse technique |
| CN110515131B (en) * | 2019-08-13 | 2021-04-20 | 吉林大学 | Ground magnetic resonance inversion method based on time lapse technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107179556B (en) | 2019-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2671434C (en) | Systems and methods for measuring sea-bed resistivity | |
| CN104656153B (en) | With brill Borehole Electromagnetic Wave Techniques tomography forward probe device and method | |
| CN103454678B (en) | Method and system for determining seismic slice isochronism | |
| CN105492723A (en) | Electroseismic surveying in exploration and production environments | |
| CN105259584B (en) | A kind of waters electrical prospecting system | |
| CN104656157B (en) | A kind of method and device in identification shale gas dessert area | |
| Lin et al. | Enabling surface nuclear magnetic resonance at high-noise environments using a pre-polarization pulse | |
| CN104714254B (en) | A kind of method and apparatus that colliery ponding goaf is detected based on transient electromagnetic method | |
| CN105467460B (en) | electromagnetic exploration method and device | |
| CN108037490A (en) | Ground Penetrating Radar Linear Positioning Accuracy Measurement Methods and system | |
| CN110320576A (en) | Method for forecasting advanced geology, device and storage medium | |
| CN113341467A (en) | Mine transient electromagnetic three-dimensional display method based on multi-interpolation method | |
| Qin et al. | Predicting pore-water pressure in front of a TBM using a deep learning approach | |
| Xue et al. | Extracting pseudo wave fields from transient electromagnetic fields using a weighting coefficients approach | |
| CN107179556B (en) | A kind of forward probe method, system and the electronic equipment of nuclear magnetic resonance | |
| CN105093300B (en) | Geologic body boundary identification method and device | |
| CN115929292A (en) | Logging method, device and equipment based on fusion of imaging logging and conventional logging | |
| CN109884714A (en) | A kind of controllable source method for electromagnetically measuring, device and its storage medium | |
| CN115522914A (en) | Radial long-distance high-precision detection method and system for cased reservoir | |
| Guoqiang et al. | Detecting shallow caverns in China using TEM | |
| KR101993102B1 (en) | Shape detection system in concrete foundation file, and method thereof | |
| CN103195408B (en) | Oil/gas Well flow imaging measuring method | |
| CN104533405A (en) | Method and device for detecting total organic carbon of shale reservoir | |
| CN112285782B (en) | Near-surface seismic wave absorption attenuation investigation method and device | |
| Schaa | Rapid approximate 3D inversion of transient electromagnetic data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |