CN205280955U - Exploration device - Google Patents
Exploration device Download PDFInfo
- Publication number
- CN205280955U CN205280955U CN201620021670.6U CN201620021670U CN205280955U CN 205280955 U CN205280955 U CN 205280955U CN 201620021670 U CN201620021670 U CN 201620021670U CN 205280955 U CN205280955 U CN 205280955U
- Authority
- CN
- China
- Prior art keywords
- screen unit
- loop line
- electromagnetic field
- coil
- field
- 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 utility model provides an exploration device relates to the investigation method in the subsurface investigation field, the mine transient electromagnetic method. Transition electromagnetic field of transmission and receipt in the various devices of mine transient electromagnetic method the receipts of a provocative secondary induction field of transition electromagnetic field, an antenna, still include electric magnetic field shielding antenna in the various devices, electricity magnetic field shielding antenna sets up in receiving, send out the opposite side (surveying the opposite direction of direction promptly) that the direction was surveyed to the antenna. Make from surveying electromagnetic field that orientation reverse propagation comes or to transition electromagnetic field or the conductively -closed of secondary induction field of surveying orientation back emission, avoid receiving antenna to receive electromagnetic field that reverse propagation comes or emit antenna and send transition electromagnetic field to the reversion who surveys the orientation and excite other secondary induction fields to surveying the result and leading to the fact the influence, improved the rate of accuracy of surveying.
Description
Technical field
The utility model relates to underground Exploration Domain, specifically, it relates to a kind of exploration device.
Background technology
In the preliminry basic research of underground, conventional geophysical exploration method dividing the structure on stratum, the position determining rift structure, the rolling shape finding out bedrock surface, judge underground water and situation is deposited in the tax in mineral deposit. The usual way solved the problem adopts mine transient electromagnetic method to observe the eddy current anomalous field of electrical heterogeneous body, and then infers existence and the position of the blind bodies in underground such as ore body, underground water, tectonic structure. Mine transient electromagnetic method utilizes earth-free loop line to launch a transient electromagnetic field to underground, utilizes two the inductive loop fields caused in coil observation underground medium during a transient electromagnetic field interval, thus a kind of method of probing medium resistivity. In the application of reality, two the inductive loop fields caused by full spatial domain underground medium of mine transient electromagnetic method observation, cause the accuracy rate exploring result to reduce.
Practical novel content
In view of this, the object of the utility model embodiment is to provide a kind of exploration device.
A kind of exploration device that the utility model embodiment provides, comprise for launching a transient electromagnetic field and receive the dual-mode antenna of two inducedmagnetic fields that a described transient electromagnetic field excites, described exploration device also comprises electromagnetic-field-shielded device, described electromagnetic-field-shielded device is arranged at the side of described dual-mode antenna away from detection direction, the transient electromagnetic field that described electromagnetic-field-shielded device is launched to the reverse direction of detection direction for shielding described dual-mode antenna and propagate the electromagnetic field of coming from the reverse direction of detection direction.
Preferably, described dual-mode antenna comprises transmission loop line and receives loop line, described electromagnetic-field-shielded device comprises transmission screen unit and receives screen unit, described transmission screen unit is arranged at the side of described transmission loop line away from detection direction, described reception screen unit is arranged at the side of described reception loop line away from detection direction, wherein, the transient electromagnetic field that described transmission screen unit is launched to the reverse direction of detection direction for shielding described transmission loop line, described reception screen unit propagates, from the reverse direction of detection direction, the electromagnetic field of coming for shielding.
Preferably, described transmission screen unit comprises the first coil surrounded by the first wire and the extraction head by described first coil ground connection, the plane at described first coil place and the plane parallel of described transmission loop line, described reception screen unit comprises the two coil surrounded by the first wire and by the extraction head of described two coil ground connection, the plane at described two coil place and the plane parallel of described reception loop line.
Preferably, the number of turn of described first coil is more than or equal to 3, and the number of turn of described two coil is more than or equal to 3.
Preferably, described first wire includes insulation sheath.
Preferably, described transmission screen unit comprises the first mesh sheet surrounded by the 2nd wire and the extraction head by described first mesh sheet ground connection, the plane at described first mesh sheet place and the plane parallel of described transmission loop line, described reception screen unit comprises the 2nd mesh sheet surrounded by the 2nd wire and the extraction head by described 2nd mesh sheet ground connection, the plane at described 2nd mesh sheet place and the plane parallel of described reception loop line.
Preferably, described 2nd wire is naked cable.
Preferably, described 2nd wire includes insulation sheath, and the 2nd wire is exposed at the grid node place of described first mesh sheet, and the 2nd wire is exposed at the grid node place of described 2nd mesh sheet.
Preferably, the distance of described transmission screen unit and described transmission loop line is more than or equal to 20 centimetres, and the distance of described reception screen unit and described reception loop line is more than or equal to 20 centimetres.
Preferably, described transmission screen unit is identical with the shape of described transmission loop line, the length of side of described transmission screen unit is greater than length of side 50cm of described transmission loop line or more, described reception screen unit is identical with the shape of described reception loop line, and the length of side of described reception screen unit is greater than length of side 50cm of described reception loop line or more.
The exploration device that the utility model provides, by arranging electromagnetic-field-shielded device at sending and receiving antenna place, two inductive electromagnetic fields that the electromagnetic field come from the backpropagation of detection direction or the transient electromagnetic field oppositely launched to detection direction and backpropagation are come are shielded, avoid receiving antenna to receive electromagnetic field that backpropagation comes or transmitting antenna excites to reverse transmission transient electromagnetic field of detection direction, two inductive electromagnetic fields that result of detection is impacted, it is to increase the accuracy rate of detection. Make the exploration of mine transient electromagnetic method realize semispace to measure, the data information gathered is semispace, eliminates or reduces false abnormality, covers true abnormal phenomenon, it is to increase data data is inferred and explained quality, reduce or eliminate investment, construction risk, and life, property damage.
For making above-mentioned purpose of the present utility model, feature and advantage become apparent, better embodiment cited below particularly, and coordinate appended accompanying drawing, it is described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, it is briefly described to the accompanying drawing used required in embodiment below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore should not be counted as is the restriction to scope, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings. By shown in accompanying drawing, above-mentioned and other object of the present utility model, Characteristics and advantages will be more clear. Reference numeral identical in whole accompanying drawing indicates identical part. Deliberately do not put drafting accompanying drawing by the contracting of physical size equal proportion, focus on purport of the present utility model is shown.
The structural representation of a kind of exploration device that Fig. 1 provides for the utility model embodiment.
The structural representation of another kind of exploration device that Fig. 2 provides for the utility model embodiment.
The structural representation of another exploration device that Fig. 3 provides for the utility model embodiment.
The a kind of of the exploration device that Fig. 4 provides for the utility model embodiment sends screen unit or receives the structural representation of screen unit.
Another kind of the exploration device that Fig. 5 provides for the utility model embodiment sends screen unit or receives the structural representation of screen unit.
The using method schema of the exploration device that Fig. 6 provides for the utility model embodiment.
Reference numeral:
Dual-mode antenna 101, electromagnetic-field-shielded device 102, transient electromagnetic field, 103, two inducedmagnetic fields 104, transmission loop line 201, reception loop line 202, transmission screen unit 203, reception screen unit 204, emitter 205, receiving apparatus 206, power supply 207, first coil 301, two coil 302, extraction the 303, first mesh sheet 304, the 2nd mesh sheet 305, grid node 306.
Embodiment
Below in conjunction with accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only the utility model part embodiment, instead of whole embodiments. The assembly of the utility model embodiment usually describing in accompanying drawing herein and illustrating can be arranged with various different configuration and design. Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but only represent selected embodiment of the present utility model. Based on embodiment of the present utility model, other embodiments all that those skilled in the art obtain under the prerequisite not making creative work, all belong to the scope of the utility model protection.
Consult Fig. 1, a kind of exploration device that the utility model embodiment provides, comprise for launching a transient electromagnetic field 103 and receive the dual-mode antenna 101 of two inducedmagnetic fields 104 that a described transient electromagnetic field 103 excites, described exploration device also comprises electromagnetic-field-shielded device 102, and described electromagnetic-field-shielded device 102 is arranged at the side (i.e. the opposite direction of detection direction) of described dual-mode antenna 101 away from detection direction.
When being explored by transient electromagnetic method, first dual-mode antenna 101 is set up, excite the good conductor on detection direction to produce two times corresponding inducedmagnetic fields 104 by the transient electromagnetic field 103 sent, then these two inducedmagnetic fields 104 are received, calculate result of detection. When exploring, it is only necessary to launch a transient electromagnetic field 103 to detection direction, it is not necessary to all launch to all directions in whole space. If also there is good conductor at non-detection direction, under the effect of a transient electromagnetic field 103, producing two times corresponding inducedmagnetic fields 104 equally, two inducedmagnetic fields 104 that these two inducedmagnetic fields 104 and detection direction are excited can overlap, and causes the result of detection inaccurate. Same, when receiving two inducedmagnetic fields 104, it is only necessary to the good conductor received on detection direction produces two inducedmagnetic fields 104, propagate the electromagnetic field come by other and all the result of detection can be had an impact. At dual-mode antenna 101, electromagnetic-field-shielded device 102 is set away from the side of detection direction, both the transient electromagnetic field 103 launched to the reverse direction of detection direction had been shielded, shield again and propagate, from the reverse direction of detection direction, the electromagnetic field of coming, decrease interference suffered when being received by detection direction two inducedmagnetic fields 104, it is to increase the accuracy rate of detection.
When concrete investigation and prospecting carries out, when especially the geologic framework under mine being explored, the direction of detection is downward, dual-mode antenna 101 setting parallel to the ground, electromagnetic-field-shielded device 102 is arranged at the top of dual-mode antenna 101, can shielding all electromagnetic field signals propagated from top and come, dual-mode antenna 101 can only receive all the electromagnetic field information propagated by lower section.
Specifically, as shown in Figure 2, described dual-mode antenna 101 comprises and sends loop line 201 and receive loop line 202, launches a transient electromagnetic field 103 by transmission loop line 201, by two inducedmagnetic fields 104 receiving loop line 202 and receiving a described transient electromagnetic field 103 and excite. Send loop line 201 and receive loop line 202 setting all parallel to the ground, be arranged at different positions. Corresponding, described electromagnetic-field-shielded device 102 comprises transmission screen unit 203 and receives screen unit 204, described transmission screen unit 203 is arranged at the side (i.e. the opposite direction of detection direction) of described transmission loop line 201 away from detection direction, and described reception screen unit 204 is arranged at the side (i.e. the opposite direction of detection direction) of described reception loop line 202 away from detection direction. Send the transient electromagnetic field 103 that screen unit 203 sends loop line 201 and launches to the reverse direction of detection direction for shielding, receive screen unit 204 and propagate, from the reverse direction of detection direction, the electromagnetic field of coming for shielding.
Other as the present embodiment implement modes, as shown in Figure 3, send loop line 201 and receive loop line 202 and be arranged at same position, are parallel to each other and coaxial, shield by same electromagnetic-field-shielded device 102. Wherein, the coaxial center referring to the shape that transmission loop line 201 and reception loop line 202 surround, is positioned on the vertical line of same bar with horizontal plane. Sending loop line 201 to be connected with the emitter 205 producing actuation signal, the actuation signal that emitter 205 produces is converted into a transient electromagnetic field through sending loop line 201. Receiving loop line 202 to be connected with receiving apparatus 206, two inducedmagnetic fields that reception loop line 202 senses are converted to corresponding electrical signal by receiving apparatus 206. Emitter 205 and receiving apparatus 206 are all connected with providing the power supply 207 of electric energy.
In the present embodiment, the structure sending screen unit 203 and reception screen unit 204 employing comprises two kinds. As shown in Figure 4, described transmission screen unit 203 comprises the first coil 301 surrounded by the first wire and the extraction 303 by described first coil 301 ground connection, the described plane at the first coil 301 place and the plane parallel of described transmission loop line 201, the setting coaxial with described transmission loop line 201 of described first coil 301. Described reception screen unit 204 comprises the two coil 302 surrounded by the first wire and the extraction 303 by described two coil 302 ground connection, the plane at described two coil 302 place and the plane parallel of described reception loop line 202. Shown two coil 302 setting coaxial with described reception loop line 202. Wherein, the first wire includes insulation sheath. First coil 301 and two coil 302 are respectively by drawing 303 ground connection, after the electromagnetic field come by the propagation of certain direction is received by the first coil 301 and two coil 302, the induced current that first coil 301 and two coil 302 produce is derived by the extraction 303 of ground connection, and then consume this direction electromagnetic field, reach the effect of shielding. As the preferred implementation of the present embodiment, the number of turn of described first coil 301 is more than or equal to 3, and the number of turn of described two coil 302 is more than or equal to 3. The number of turn of coil is directly proportional to the intensity of the induced current of generation, and the number of turn is more big, and the shield effectiveness of generation is also more good.
In use, to ensure that the first coil 301 is parallel with reception loop line 202 with the parallel and two coil 302 sending loop line 201, to obtain best shield effectiveness.
As shown in Figure 5, described transmission screen unit 203 comprises the first mesh sheet 304 surrounded by the 2nd wire and the extraction 303 by described first mesh sheet 304 ground connection, the described plane at the first mesh sheet 304 place and the plane parallel of described transmission loop line 201, the setting coaxial with described transmission loop line 201 of described first mesh sheet 304. Described reception screen unit 204 comprises the 2nd mesh sheet 305 surrounded by the 2nd wire and the extraction 303 by described 2nd mesh sheet 305 ground connection, the described plane at the 2nd mesh sheet 305 place and the plane parallel of described reception loop line 202, the setting coaxial with described reception loop line 202 of described 2nd mesh sheet 305.
By the mesh sheet surrounded by wire, the shielding to electromagnetic field signal can also be realized equally. Specifically, the 2nd wire of the first mesh sheet 304 and the 2nd mesh sheet 305 is surrounded, it is possible to adopt naked cable, it is also possible to adopt the wire including insulation sheath. When adopting naked cable, by the 2nd wire meshy arrangement, and carry out connecting at grid node 306 place. Adopt when having the wire of insulation sheath, in order to ensure transverse direction and erect to wire can connect at grid node 306 place, it is necessary at correspondence position, insulation sheath is cut, exposes and be included in inner metal, then connect. First mesh sheet 304 and the 2nd mesh sheet 305 need equally by drawing 303 ground connection, to be derived by the induced current produced.
In order to ensure that the induced current sending screen unit and reception screen unit 204 to produce when receiving electromagnetic field signal can be derived effectively, first coil 301 and two coil 302 produces or the first mesh sheet 304 and the 2nd mesh sheet 305 by drawing 303 ground connection time, the stake resistance of the first wire and the 2nd wire is less than 100 ohm/meter. The resistance of stake resistance is more little, and the effect of signal shielding is more good.
In use, the structure sending screen unit 203 and reception screen unit 204 employing can be the same or different. When namely sending the structure that screen unit 203 adopts the first coil 301, receive screen unit 204 and can select the structure of two coil 302 or the structure of the 2nd mesh sheet 305.
While ensureing shield effectiveness, transmission loop line 201 and reception loop line 202 can not be had an impact, as the preferred implementation of the present embodiment, described transmission screen unit 203 is more than or equal to 20 centimetres with the distance of described transmission loop line 201, and described reception screen unit 204 is more than or equal to 20 centimetres with the distance of described reception loop line 202.
Further, in order to obtain better shield effectiveness, described transmission screen unit 203 is identical with the shape of described transmission loop line 201, the length of side of described transmission screen unit 203 is greater than the length of side of described transmission loop line 201, described reception screen unit 204 is identical with the shape of described reception loop line 202, and the length of side of described reception screen unit 204 is greater than the length of side of described reception loop line 202.
Send loop line 201 and receive loop line 202 in use, situation according to reality, different shapes may be arranged to, such as trilateral, rectangle etc., in order to ensure its shield effectiveness on non-detection direction, when arranging transmission screen unit 203 and receive screen unit 204, be set to the shape identical with transmission loop line 201 or reception loop line 202, simultaneously, it is set to be greater than the length of side sending loop line 201 or receiving loop line 202 by the length of side sending screen unit 203 and reception screen unit 204 again, ensures the comprehensive covering to it. As preferred embodiment, the length of side sending screen unit 203 and reception screen unit 204 is greater than transmission loop line 201 or the length of side 50 centimetres receiving loop line 202 or more.
As shown in Figure 6, being the using method schema of the exploration device that the utility model provides, described method comprises:
Step S101, the design book carrying out exploring according to transient electromagnetic method is determined send loop line 201 and receive loop line 202 shape and size, makes and sends loop line 201 and receive loop line 202.
Step S102, makes corresponding transmission screen unit 203 according to sending loop line 201 and receive loop line 202 shape and size and receives screen unit 204.
Step S103, send loop line 201 according to the curriculum offering of design book and receive loop line 202, described transmission screen unit 203 is arranged at the side of described transmission loop line 201 away from detection direction, reception screen unit 204 is arranged at the side of described reception loop line 202 away from detection direction.
Step S104, will send screen unit 203 and receive screen unit 204 ground connection respectively.
Step S105, starts exploration device and starts to measure.
Step S106, after having gathered a measuring point data, packs up each parts of exploration device, and moves to next measuring point.
Repeating step S103-step S106, until the data of all measuring points all gather complete.
The exploration device that the utility model provides, by arranging electromagnetic-field-shielded device 102 at dual-mode antenna 101 place, the electromagnetic field come from the backpropagation of detection direction is shielded, avoid its receive two inducedmagnetic fields 104 are produced interference simultaneously dual-mode antenna 101 oppositely send a transient electromagnetic field 103 to detection direction, excite two inducedmagnetic fields 104 that result of detection is impacted by other, it is to increase the accuracy rate of detection. Make transient electromagnetic method exploration realize semispace to measure, the data information gathered is semispace, eliminates or reduces false abnormality, covers true abnormal phenomenon, it is to increase data data is inferred and explained quality, reduce or eliminate investment, construction risk, and life, property damage.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations. All within spirit of the present utility model and principle, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model. It should be noted that: similar label and letter accompanying drawing below represents similar item, therefore, once a certain Xiang Yi accompanying drawing is defined, then do not need it carries out definition further and explains in accompanying drawing subsequently.
In description of the present utility model, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", it is based on orientation shown in the drawings or position relation that the orientation of the instruction such as " outward " or position are closed, or this practicality novel product orientation usually put or position relation when using, it is only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device referred to or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model. in addition, term " first ", " the 2nd ", " the 3rd " etc. are only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, such as, it is possible to be fixedly connected with, can also be removably connect, or connect integratedly; Can be mechanically connected, it is also possible to be electrical connection; Can be directly be connected, it is also possible to be indirectly connected by intermediary, it is possible to be the connection of two element internals. For the ordinary skill in the art, it is possible to particular case understands the concrete implication of above-mentioned term in the utility model.
Claims (10)
1. an exploration device, comprise for launching a transient electromagnetic field and receive the dual-mode antenna of two inducedmagnetic fields that a described transient electromagnetic field excites, it is characterized in that, described exploration device also comprises electromagnetic-field-shielded device, described electromagnetic-field-shielded device is arranged at the side of described dual-mode antenna away from detection direction, the transient electromagnetic field that described electromagnetic-field-shielded device is launched to the reverse direction of detection direction for shielding described dual-mode antenna and propagate the electromagnetic field of coming from the reverse direction of detection direction.
2. exploration device according to claim 1, it is characterized in that, described dual-mode antenna comprises transmission loop line and receives loop line, described electromagnetic-field-shielded device comprises transmission screen unit and receives screen unit, described transmission screen unit is arranged at the side of described transmission loop line away from detection direction, described reception screen unit is arranged at the side of described reception loop line away from detection direction, wherein, the transient electromagnetic field that described transmission screen unit is launched to the reverse direction of detection direction for shielding described transmission loop line, described reception screen unit propagates, from the reverse direction of detection direction, the electromagnetic field of coming for shielding.
3. exploration device according to claim 2, it is characterized in that, described transmission screen unit comprises the first coil surrounded by the first wire and the extraction head by described first coil ground connection, the plane at described first coil place and the plane parallel of described transmission loop line, described reception screen unit comprises the two coil surrounded by the first wire and by the extraction head of described two coil ground connection, the plane at described two coil place and the plane parallel of described reception loop line.
4. exploration device according to claim 3, it is characterised in that, the number of turn of described first coil is more than or equal to 3, and the number of turn of described two coil is more than or equal to 3.
5. exploration device according to claim 3, it is characterised in that, described first wire includes insulation sheath.
6. exploration device according to claim 2, it is characterized in that, described transmission screen unit comprises the first mesh sheet surrounded by the 2nd wire and the extraction head by described first mesh sheet ground connection, the plane at described first mesh sheet place and the plane parallel of described transmission loop line, described reception screen unit comprises the 2nd mesh sheet surrounded by the 2nd wire and the extraction head by described 2nd mesh sheet ground connection, the plane at described 2nd mesh sheet place and the plane parallel of described reception loop line.
7. exploration device according to claim 6, it is characterised in that, described 2nd wire is naked cable.
8. exploration device according to claim 6, it is characterised in that, described 2nd wire includes insulation sheath, and the 2nd wire is exposed at the grid node place of described first mesh sheet, and the 2nd wire is exposed at the grid node place of described 2nd mesh sheet.
9. exploration device according to claim 3-8 any one, it is characterised in that, the distance of described transmission screen unit and described transmission loop line is more than or equal to 20 centimetres, and the distance of described reception screen unit and described reception loop line is more than or equal to 20 centimetres.
10. exploration device according to claim 3-8 any one, it is characterized in that, described transmission screen unit is identical with the shape of described transmission loop line, the length of side of described transmission screen unit is greater than length of side 50cm of described transmission loop line or more, described reception screen unit is identical with the shape of described reception loop line, and the length of side of described reception screen unit is greater than length of side 50cm of described reception loop line or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021670.6U CN205280955U (en) | 2016-01-11 | 2016-01-11 | Exploration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021670.6U CN205280955U (en) | 2016-01-11 | 2016-01-11 | Exploration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205280955U true CN205280955U (en) | 2016-06-01 |
Family
ID=56065517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620021670.6U Active CN205280955U (en) | 2016-01-11 | 2016-01-11 | Exploration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205280955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467459A (en) * | 2016-01-11 | 2016-04-06 | 卜传新 | Exploration device |
-
2016
- 2016-01-11 CN CN201620021670.6U patent/CN205280955U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467459A (en) * | 2016-01-11 | 2016-04-06 | 卜传新 | Exploration device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200003928A1 (en) | Method and device for surface-borehole transient electromagnetic detection | |
| CN104035137B (en) | Underground full-space transient electromagnetic detecting instrument and detection method | |
| CN103630946B (en) | Single hole electromagnetic wave tomography forward probe device and method | |
| CN102062876A (en) | Electrical sounding method for whole-region couple source frequency domain | |
| CN103837898A (en) | High-density electrical method near-end dipole electromagnetic sounding method | |
| CN106646142A (en) | Grounding grid broken point diagnosis method and transient electromagnetic detection device | |
| CN103777247A (en) | Transient electromagnetic radar detection system and detection method | |
| CN107272074A (en) | A kind of apparatus and method for realizing Mine transient electromagnetic focusing-detection | |
| CN107861159A (en) | Double Electric Dipole ground well transient electromagnetic detecting methods | |
| CN104267442A (en) | Transient electromagnetic simulated earthquake detection method used for coal mine underground | |
| CN106907145A (en) | A kind of apparent resistivity measuring system and method with brill advanced prediction | |
| CN108957560A (en) | A kind of electrical prospecting method suitable for the detection of the cities and towns underground space | |
| CN104407392A (en) | One-transmitting and three-receiving type detection device for water filling goaf, and detection method | |
| CN107884834A (en) | Homologous more transient electromagnetic detecting methods | |
| CN217543411U (en) | Device for exploring and fixing magnetic rod by geophysical geoelectromagnetic method | |
| CN206833669U (en) | A kind of slope geological monitoring and warning system | |
| CN103176214B (en) | Electric field leash law coal peace type roadheader carries tectonic structure detection system and method thereof | |
| CN105467459A (en) | Exploration device | |
| CN203658601U (en) | A tunnel model test device achieving multiple geophysical field advanced detection | |
| CN205280955U (en) | Exploration device | |
| CN201548702U (en) | Transmitting coil and receiving coil of mining transient electromagnetic instrument | |
| CN114217354A (en) | Electromagnetic data acquisition system and method based on optical fiber electromagnetic sensor | |
| CN103499838A (en) | Transient electromagnetic measuring device and recognizing method for anomalous body orientation recognition | |
| CN111929741A (en) | 5G + CMFT-R time domain electromagnetic field exploration system and method | |
| CN102162860A (en) | High-power extremely low frequency and ultralow frequency artificial source electromagnetic method for geological prospecting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |