CN103576205B - Air-ground transient electromagnetic exploration method based on composite magnetic source technology - Google Patents
Air-ground transient electromagnetic exploration method based on composite magnetic source technology Download PDFInfo
- Publication number
- CN103576205B CN103576205B CN201310574207.5A CN201310574207A CN103576205B CN 103576205 B CN103576205 B CN 103576205B CN 201310574207 A CN201310574207 A CN 201310574207A CN 103576205 B CN103576205 B CN 103576205B
- Authority
- CN
- China
- Prior art keywords
- source
- combination
- forcing
- time
- ground
- 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.)
- Active
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of air-ground transient electromagnetic exploration method based on composite magnetic source technology, the method proposes air-ground transient electromagnetic exploration engineering based on combination source technology first, specifically 4,6 or 8 magnetic source of equally spaced layout on a big circumference on the ground centered by exploration targets region, in the unmanned plane collection of survey area overhead by the induced electromotive force transient response under each combination source forcing.Due to the fact that used combination source is multi-source and is symmetrical, therefore the problems such as uncertain are explained in the response results amplitude difference position big, local non-homogeneous body greatly reducing the nearly far field point using stationary source to be brought, the multi-angle observation information about subsurface anomaly body can be obtained, reduce the impact of inverting multi-solution, it is achieved efficient, high-resolution, the large area of complex region and the exploration of the big degree of depth.
Description
Technical field
The present invention relates to a kind of air-ground transient electromagnetic side of reconnoitring received based on combination source transmitting-unmanned plane
Method, belongs to geophysics electromagnetism exploitation method category.
Background technology:
Transient electromagnetic method is a kind of traditional ore deposit water detection electromagnetic exploration method of looking for, and uses and arranges on the ground
Transmitting loop, is provided with current pulse signal, and receiving coil also is disposed on ground, receives and vertically inducts
Electromotive force transient signal.Then explain that underground electrically constructs to reach geology and surveys according to observation data inversion
The purpose visited.The method is difficult to construction area in a varied topography, ground physical prospecting, and work efficiency is relatively low,
Even cannot be carried out work.Then, it is thought that application aviation transient electromagnetic exploration technique realizes greatly
Area, over long distances Geophysical Work.Aviation transient electromagnetic method has with fixed-wing as platform and with directly
The machine of liter is two kinds of methods of platform, and the former operating speed is fast, launch that magnetic moment is big, depth of exploration relatively
Greatly, latter space resolution is high, and depth of exploration is relatively small.This kind of method due to need airborne transmitter,
The equipment such as receiver, main frame and power supply, therefore aviation transient electromagnetic depth of exploration is the most limited, Gu
Determine the depth of exploration of wing aviation transient electromagnetic typically at 400～800 meters, surveying of helicopter aviation transient electromagnetic
Depth sounding degree is typically at about 300 meters.All cannot realize from the aforegoing it can be seen that existing transient electromagnetic reconnoitres method
Efficient, high-resolution, the large area of complex region and big degree of depth exploration.
Summary of the invention
It is an object of the invention to provide a kind of air-ground transient electromagnetic based on composite magnetic source technology to reconnoitre
Method, the method can realize carrying out efficiently at ground surface environment complex region, high-resolution, large area and
The exploration of the big degree of depth.
Based on composite magnetic source technology the air-ground transient electromagnetic exploration method that the present invention provides, is included in
Arrange the magnetic source launching periodic bipolar current pulse signal on ground, receive, with coil, electricity of inducting
Kinetic potential transient signal, described magnetic source is 4,6 or 8, evenly spaced is distributed in exploration targets
On a ground circumference centered by region, each magnetic source can be considered vertical magnetic dipole component；Connect
Take-up circle is loaded on unmanned plane, and unmanned plane flies at exploration targets overlying regions, gathers various combination source
Induced electromotive force transient response data under Ji Li, described combination source refer to by symmetrical several or
The driving source that all magnetic source is constituted.
The above-mentioned unmanned plane route that edge is parallel to each other above survey area is by end to end reciprocating manner
Flight, after a kind of combination source is measured, changes another kind of combination source forcing signal, again shuttle flight
Carry out the flight measurement under new combination of stimulation source signal, till various combination sources are all measured.
Above-mentioned magnetic source is 4, if the labelling in each source is followed successively by A, B, C, D, enters for the first time
Rower is designated as the flight measurement under the combination source forcing of A, C；Second time is marked the group into B, D
Close the flight measurement under source forcing；Third time is marked as under the combination source forcing of A, B, C, D
Flight measurement, finally give three kinds combination sources measurement data.
Above-mentioned magnetic source is 6, if the labelling in each source is followed successively by A, B, C, D, E, F, the
Once it is marked as the flight measurement under the combination source forcing of A, C, E；Second time be marked into
Flight measurement under the combination source forcing of B, D, F；Third time be marked into A, B, C, D, E,
Flight measurement under the combination source forcing of F, finally gives the measurement data in three kinds of combination sources.
Above-mentioned magnetic source is 8, if the labelling in each source be followed successively by A, B, C, D, E, F, G,
H, is marked for the first time as the flight measurement under the combination source forcing of A, C, E, G；For the second time
It is marked as the flight measurement under the combination source forcing of B, D, F, H；Third time be marked into
Flight measurement under the combination source forcing of A, B, C, D, E, F, G, H, finally gives three kinds of groups
The measurement data in conjunction source.
The present invention uses and arranges multiple magnetic source on the ground, launches pulsed current signal, aloft uses
Unmanned plane carries receiving coil and measures three-component induced electromotive force response signal, and unmanned plane is the most permissible
Flight measurement efficiently.Owing to survey area is in the central area of multiple magnetic source, therefore each magnetic
Source can be considered vertical magnetic dipole, simultaneously because multiple magnetic source is arranged on the ground, therefore observes number
According to intensity relatively large, signal to noise ratio is the most of a relatively high.In traditional ground transient electromagnetic method,
If doing area exploration, if the method using moving source, such as Genter loop or Coincident loop method,
If needing pointwise collection on the netted measuring point in ground, hypsography or ground surface environment severe, not only work
Work amount is big, and inefficiency even cannot be carried out the work；If using and determining wire-retracting device,
When the offset distance of measuring point is bigger, with a driving source to determine Loop source Transient electromagnetic response amplitude less.
If it addition, have local non-homogeneous body to be positioned near emission source or below, such as ground CSAMT
The field source print-throughs of method etc. are similar to, and the response data of observation area, outside can be uneven by local
The impact of body.When exploring with a traditional driving source, the uneven cognition impact in nearly source is the biggest
A panel region, the delineation to subsurface anomaly causes very adverse influence.Use combination source forcing skill
Art, a big approximation circumference around exploration targets region is arranged driving source, not only can increase
The response signal intensity of survey area, increases depth of exploration, weakens local non-homogeneous body to whole simultaneously
The impact that the response data in region causes.Combination source forcing technology it is a further advantage that, it is possible to obtain
The multi collect data in various combination source, thus obtain the multi-angle observation information about subsurface anomaly body,
Reduce the impact of inverting multi-solution.Therefore the inventive method can overcome large area region exploration to be faced
Many difficulties, it is achieved efficient, high-resolution, the large area of complex region and the exploration of the big degree of depth.
With the combination source-air-ground Transient electromagnetic response of unmanned plane of simple three layers of dielectric model it is below
Example carries out simulation calculation, and the concrete effect of the present invention is explained further.
If the layer resistivity of three layer model is 100,20 and 100 ohm meters, layer thickness is 300 meters.
Each magnetic source laid on ground is parameter identical vertical magnetic dipole (Vertical Magnetic
Dipole, VMD) source, magnetic moment is 1Am2, it is placed on the different point on the circumference of one, ground.Connect
Take-up circle is 1m2, its height is 100 meters.If transmitting signal is step pulse, measure after power-off 32
The induced electromotive force transient response of individual moment point.
Response results during relatively five kinds combination emission source distributions, the first is 1 vertical magnetic dipole
Emission source is positioned at (-2000,0,0) m, and the second is also 1 VMD emission source, be positioned at (2000,0,
0), at m, the third is that 2 VMD emission sources lay respectively at (-2000,0,0) m and (2000,0,0) m
Place, the 4th kind be 4 VMD emission sources lay respectively at (-2000,0,0) m, (2000,0,0) m, (0 ,-2000,
0), at m, (0,2000,0) m, the 5th kind is 8 VMD emission sources, their position respectively with
Centered by geographical coordinates initial point, radius be eight points on the circumference of 2000m, wherein the first source be positioned at (2000,
0,0) at m, the position in other source and the line of initial point with x positive direction angle be respectively 45 degree, 90
Degree, 135 degree, 180 degree, 225 degree, 270 degree and 315 degree.
Fig. 1～Fig. 5 is powered off during rear 4.32ms flying surface (z=-100m) under five kinds of combination source forcings
The scattergram of upper three component response.Observe each figure to understand, time only with a driving source, dividing of response
Cloth has directivity, and distance driving source is the most remote, and the amplitude of response is the least.When using combination source forcing
Time, exploration targets region gradually becomes uniform, and driving source number symmetrical in combination source is the most,
Middle section response distribution is the most uniform, and response amplitude is the biggest, the most favourable to exploring subsurface structure.
Fig. 6 is the z of flying surface overhead corresponding point (0,0 ,-100) m at survey area center under five kinds of combination sources
Component transition curve comparison figure.It can be seen that during a source, no matter be arranged in survey area
The position of left or right, response is consistent, and during multiple combination source, transient response form is consistent, source
Number is the most, and the amplitude of response is the biggest.
Fig. 7 is the z-component response section curve on three moment point y=0m flight surveys line, it can be seen that
When traditional ground single source encourages, each instantaneous section response curve is to decline to direction, remote source dullness
Subtract.And when using the Symmetric Composite source forcing of the present invention, each temporal profile curve middle body becomes
Obtain the mildest, be beneficial to detection.
Knowable to above-mentioned analog result, symmetrical combination source can overcome the remote source decay in single source
Problem, strengthens the signal to noise ratio of data, reduces the multi-solution impact of inverting, improves the reliable of explanation results
Property.It addition, use the repetitive measurement technology of multi-source combination, it is possible to obtain the detection information of multi-angle,
The most higher to the resolution capability of local objective body.
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is that three-component during 4.32ms on the first driving source (a left source) reception height face rings
Should be distributed, wherein figure a～c is x respectively, y, the scattergram of z-component induced electromotive force response.
Fig. 2 is that three-component during 4.32ms on the second driving source (a right source) reception height face rings
Should be distributed, wherein figure a～c is x respectively, y, the scattergram of z-component induced electromotive force response.
Fig. 3 is three-component during 4.32ms on the third driving source (source, two, left and right) reception height face
Response distribution, wherein figure a～c is x respectively, y, the scattergram of z-component induced electromotive force response.
Fig. 4 is three during 4.32ms on the 4th kind of driving source (four sources up and down) reception height face
Component response is distributed, and wherein figure a～c is x respectively, y, the scattergram of z-component induced electromotive force response.
Fig. 5 is that the 5th kind of driving source (be spacedly distributed on circumference 8 sources) receives 4.32ms on height face
Time three-component response distribution, wherein figure a～c be x respectively, y, z-component induced electromotive force response distribution
Figure.
Fig. 6 is under five kinds of emission sources, the Vz component transient response curve comparison diagram at (0,0 ,-100) m.
Fig. 7 is the z-component response section curve on three moment point y=0m flight surveys line.
Fig. 8 is 4 magnetic source scattergrams on ground.
Fig. 9 is unmanned plane during flying route schematic diagram.
Figure 10 is 6 magnetic source scattergrams on ground.
Figure 11 is 8 magnetic source scattergrams on ground.
Detailed description of the invention
When the present invention implements, first need to determine that the radius size of magnetic source place circumference, magnetic source are adopted
Number, transmitting pulse waveform, sampling time sequence, flying height, course line etc., enter the most again
Row data acquisition, illustrates with 4 sources, 6 sources and 8 sources separately below.
Embodiment 1
Magnetic source is 4, is the vertical magnetic dipole component that parameter is identical, if the labelling in each source depends on
Secondary for A, B, C, D, as shown in Figure 8, it is marked the combination source forcing into A, C for the first time
Under flight measurement；Second time is marked as the flight measurement under the combination source forcing of B, D；3rd
Secondary be marked into A, B, C, D combination source forcing under flight measurement, finally give three kinds of groups
The measurement data in conjunction source.
Unmanned plane carries three-component receiving coil, in overhead, exploration targets region along the route shown in Fig. 9
Flight, for purposes of illustration only, route is indicated with 1,2,3,4, unmanned plane elder generation flight path during measurement
1, then opposite direction flight path 2, then return along route 3, and so on, whole routes are flown
Complete, i.e. complete a kind of measurement combining source.Then, lower a kind of combination source is come back for along former route
Flight measurement, till all combination sources are all measured.
After data acquisition, carry out data process, inversion solution by the workflow of air-ground transient electromagnetic
The work such as release.
Embodiment 2
Magnetic source is 6, is the vertical magnetic dipole component that parameter is identical, if the labelling in each source depends on
Secondary for A, B, C, D, E, F, as shown in Figure 10, it is marked as A, C, E for the first time
Flight measurement under combination source forcing；Second time is marked as under the combination source forcing of B, D, F
Flight measurement；Third time is marked as the flight under the combination source forcing of A, B, C, D, E, F
Measure, finally give the measurement data in three kinds of combination sources.
The flight path of unmanned plane is same as in Example 1.After data acquisition, by air-ground transient electrical
The workflow of magnetic carries out the work such as data process, inversion interpretation.
Embodiment 3
Magnetic source is 8, is the vertical magnetic dipole component that parameter is identical, if the labelling in each source depends on
Secondary for A, B, C, D, E, F, G, H, as shown in figure 11, be marked for the first time into A, C,
Flight measurement under the combination source forcing of E, G；Second time is marked the combination into B, D, F, H
Flight measurement under source forcing；Third time carries out the flight measurement under whole 8 combination source forcings,
Obtain the measurement data in three kinds of combination sources eventually.
The flight path of unmanned plane is same as in Example 1.After data acquisition, by air-ground transient electrical
The workflow of magnetic carries out the work such as data process, inversion interpretation.
Claims (4)
1. air-ground transient electromagnetic exploration method based on composite magnetic source technology, including arranging on the ground
Launch the magnetic source of periodic bipolar current pulse signal, receive induced electromotive force transition letter with coil
Number, it is characterised in that: described magnetic source is 4,6 or 8, and each magnetic source is evenly spaced to be distributed in
On a circumference centered by exploration targets region；Receiving coil is loaded on unmanned plane, and unmanned plane exists
Exploration targets overlying regions flies along the route being parallel to each other by end to end reciprocating manner, gathers each
Plant the induced electromotive force transient response data under combination source forcing, after a kind of combination source is measured, change
Another kind of combination source forcing signal, the flight under shuttle flight carries out new combination of stimulation source signal again
Measuring, till all combination sources are all measured, described combination source refers to by symmetrical several
Or the driving source that all magnetic source is constituted.
The air-ground transient electromagnetic side of reconnoitring based on composite magnetic source technology the most according to claim 1
Method, it is characterised in that: magnetic source is 4, if the labelling in each source is followed successively by A, B, C, D,
It is marked for the first time as the flight measurement under the combination source forcing of A, C；Second time be marked into B,
Flight measurement under the combination source forcing of D；Third time is marked the combination source into A, B, C, D
Flight measurement under Ji Li, finally gives the measurement data in three kinds of combination sources.
The air-ground transient electromagnetic side of reconnoitring based on composite magnetic source technology the most according to claim 1
Method, it is characterised in that: magnetic source is 6, if the labelling in each source be followed successively by A, B, C, D, E,
F, is marked for the first time as the flight measurement under the combination source forcing of A, C, E；Second time is carried out
It is labeled as the flight measurement under the combination source forcing of B, D, F；Third time be marked into A, B, C,
Flight measurement under the combination source forcing of D, E, F, finally gives the measurement data in three kinds of combination sources.
The air-ground transient electromagnetic side of reconnoitring based on composite magnetic source technology the most according to claim 1
Method, it is characterised in that: magnetic source is 8, if the labelling in each source be followed successively by A, B, C, D, E,
F, G, H, be marked for the first time as the flight measurement under the combination source forcing of A, C, E, G；
Second time is marked as the flight measurement under the combination source forcing of B, D, F, H；Third time is carried out
It is labeled as the flight measurement under the combination source forcing of A, B, C, D, E, F, G, H, finally gives
The measurement data in three kinds of combination sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574207.5A CN103576205B (en) | 2013-11-17 | 2013-11-17 | Air-ground transient electromagnetic exploration method based on composite magnetic source technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574207.5A CN103576205B (en) | 2013-11-17 | 2013-11-17 | Air-ground transient electromagnetic exploration method based on composite magnetic source technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103576205A CN103576205A (en) | 2014-02-12 |
| CN103576205B true CN103576205B (en) | 2016-12-07 |
Family
ID=50048368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310574207.5A Active CN103576205B (en) | 2013-11-17 | 2013-11-17 | Air-ground transient electromagnetic exploration method based on composite magnetic source technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103576205B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375195B (en) * | 2013-08-15 | 2017-03-15 | 中国石油天然气集团公司 | Many source multi-component three-dimensional joint inversion methods of time-frequency electromagnetism |
| CN104237956B (en) * | 2014-03-06 | 2017-07-04 | 长安大学 | The air-ground detection method of grounded source transient electromagnetic |
| CN104360401B (en) * | 2014-12-10 | 2016-10-12 | 中国科学院地质与地球物理研究所 | A kind of transient electromagnetic B field descends objective body geological information method definitely |
| CN107209521A (en) * | 2015-04-30 | 2017-09-26 | 深圳市大疆创新科技有限公司 | Pass through the system and method for magnetic field landing mobile platform |
| RU2676556C1 (en) * | 2017-10-10 | 2019-01-09 | Публичное акционерное общество "Газпром" | Method of pulsed ground geological exploration (options) |
| CN111796328B (en) * | 2020-07-09 | 2023-08-15 | 长安大学 | Multi-source frequency domain ground-air electromagnetic detection acquisition system and method |
| CN112068211A (en) * | 2020-07-30 | 2020-12-11 | 成都理工大学 | Half time domain electromagnetic prospecting system of aviation of unmanned aerial vehicle |
| CN112363248B (en) * | 2020-11-24 | 2021-07-27 | 吉林大学 | Three-dimensional coil-based field ground-air electromagnetic environment simulation device and method |
| CN113204051B (en) * | 2021-06-10 | 2022-04-15 | 成都理工大学 | Low-rank tensor seismic data denoising method based on variational modal decomposition |
| CN115128680B (en) * | 2022-06-28 | 2023-06-02 | 吉林大学 | Transient electromagnetic targeting measurement method for magnetic source multi-waveform combination |
| CN118091767B (en) * | 2024-04-19 | 2024-07-26 | 吉林大学 | Coding method and detection method for ground space-time frequency electromagnetic synchronous pulse excitation sequence |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610523A (en) * | 1991-05-06 | 1997-03-11 | Elliot; Peter J. | Method and apparatus of interrogating a volume of material beneath the ground including an airborne vehicle with a detector being synchronized with a generator in a ground loop |
| CN102096113A (en) * | 2010-12-03 | 2011-06-15 | 吉林大学 | Time-domain ground-air electromagnetic detection system and calibration method |
| CN102419453A (en) * | 2011-07-15 | 2012-04-18 | 中国科学院地质与地球物理研究所 | Long-lead source transient electromagnetic ground-air detecting method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7681831B2 (en) * | 2006-12-14 | 2010-03-23 | Geotech Airborne Limited | Suspension net for airborne surveying |
-
2013
- 2013-11-17 CN CN201310574207.5A patent/CN103576205B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610523A (en) * | 1991-05-06 | 1997-03-11 | Elliot; Peter J. | Method and apparatus of interrogating a volume of material beneath the ground including an airborne vehicle with a detector being synchronized with a generator in a ground loop |
| CN102096113A (en) * | 2010-12-03 | 2011-06-15 | 吉林大学 | Time-domain ground-air electromagnetic detection system and calibration method |
| CN102419453A (en) * | 2011-07-15 | 2012-04-18 | 中国科学院地质与地球物理研究所 | Long-lead source transient electromagnetic ground-air detecting method |
Non-Patent Citations (2)
| Title |
|---|
| 激励信号对地-空瞬变电磁响应的影响分析;关珊珊 等;《电波科学学报》;20120831;第27卷(第4期);第767页第1栏第2段倒数第3-6行，及图1、3 * |
| 瞬变电磁法理论与应用研究进展;薛国强 等;《地球物理学进展》;20070831;第22卷(第4期);第1199页第1栏倒数第3段第4行 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103576205A (en) | 2014-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103576205B (en) | Air-ground transient electromagnetic exploration method based on composite magnetic source technology | |
| CN104597506B (en) | The air-ground electromagnetic exploration method of frequency domain | |
| CN106908847B (en) | A kind of air-ground nuclear magnetic resonance underground water detection system and detection method | |
| US10809412B2 (en) | WEM-based method for deep resource detection using sky waves | |
| CN207833034U (en) | A kind of unmanned plane-geological radar integrally descends object detection device | |
| CN104360399B (en) | Transient electromagnetic detecting method and device under long wired earth seedbed | |
| Legault | Airborne electromagnetic systems–state of the art and future directions | |
| CN111257951B (en) | Ground-air short-offset electromagnetic detection system and multi-source emission signal separation method | |
| US2531088A (en) | Electrical prospecting method | |
| CN104749640B (en) | Multi-source multi-frequency ground-air electromagnetic detection emission method | |
| CN105807325B (en) | A kind of frequency domain aviation Extremely Low Frequency Electromagnetic method | |
| CN107102367B (en) | A kind of helicopter prepolarizing field magnetic resonance hydrocarbon exploration device and detection method | |
| CN102736114A (en) | Electromagnetic and its combined surveying apparatus and method | |
| CN110231659A (en) | Buried depth changes railway tunnel aviation electromagnetic detection method greatly | |
| CN104081227A (en) | Super-resolution formation fluid imaging | |
| CN106896415A (en) | A kind of short offset distance transient electromagnetic detecting method of ground well grounded source | |
| CN110471117A (en) | A kind of aviation electromagnetic detection system and method | |
| CN105301663A (en) | Time-frequency electromagnetic exploration data air acquisition device and system | |
| CN103777247A (en) | Transient electromagnetic radar detection system and detection method | |
| CN104656157A (en) | Method and device for identifying shale gas sweet-spot area | |
| CN104297807A (en) | Magnetic resonance imaging device for underground disaster water source detection and detection and imaging method | |
| Wu et al. | Full field apparent resistivity definition of borehole TEM with electric source | |
| CN104020496A (en) | Ground controlled source magnetotelluric method based on axial collinear manner | |
| CN103809204A (en) | Field audio magnetotelluric data acquisition method | |
| CN114910968A (en) | Orthogonal source frequency domain ground-air electromagnetic dip divergence detection and imaging method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: XI'AN RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY Effective date: 20140123 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Mao Lifeng Inventor after: Wang Xuben Inventor after: Qin Qingyan Inventor before: Mao Lifeng Inventor before: Wang Xuben |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: MAO LIFENG WANG XUBEN TO: MAO LIFENG WANG XUBEN QIN QINGYAN |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20140123 Address after: Three road 610059 Sichuan city of Chengdu province Chenghua District Erxian Qiaodong No. 1 Applicant after: Chengdu University of Technology Applicant after: Xi'an Research Institute, CCTEG Address before: Three road 610059 Sichuan city of Chengdu province Chenghua District Erxian Qiaodong No. 1 Applicant before: Chengdu University of Technology |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Xuben Inventor after: Mao Lifeng Inventor after: Gao Song Inventor after: Li Linlin Inventor after: Qin Qingyan Inventor before: Mao Lifeng Inventor before: Wang Xuben Inventor before: Qin Qingyan |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |