CN201548701U - Mining transient electromagnetic instrument - Google Patents
Mining transient electromagnetic instrument Download PDFInfo
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- CN201548701U CN201548701U CN2009201816384U CN200920181638U CN201548701U CN 201548701 U CN201548701 U CN 201548701U CN 2009201816384 U CN2009201816384 U CN 2009201816384U CN 200920181638 U CN200920181638 U CN 200920181638U CN 201548701 U CN201548701 U CN 201548701U
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Abstract
The utility model relates to a mining geology detecting instrument, in particular to a mining transient electromagnetic instrument, which comprises a mining transient electromagnetic main machine, a transmitting coil and a receiving coil. The transmitting coil and the receiving coil are respectively connected with the mining transient electromagnetic main machine; and the transmitting coil and the receiving coil are made of multi-core cables with the same length and the same core number; and an insulating protective sleeve is arranged outside each multi-core cable. The mining transient electromagnetic instrument has water-proof function, is suitable for being used in mines, and turn ratio of the transmitting coil and the receiving coil is 1:2, thereby transmitting strength of a magnetic field is ensured. The transmitting coil and the receiving coil are tightly fixed integrally through a fixing block, thereby reliability of transient secondary field receiving can be ensured.
Description
[technical field]
The utility model relates to mining geology detecting instrument, particularly a kind of mining transient electromagnetic instrument.
[background technology]
Water damage is one of major casualty in mining construction and the production run, and therefore, the forward probe of structure water content is one of main demand of guaranteeing the ore deposit safe working.Transient electromagnetic method is to utilize earth-free coil to electromagnetic field of underground transmission, at an electromagnetic field tempus intercalare, use the method in earth-free coil or ground-electrode observation secondary vortices flow field, its physical basis is an electromagnetic induction principle, be conducting medium produces the vortex field under the exciting of the excitation field that step changes problem, from the physical difference analysis on different lithology stratum, ore deposit.General Changing Pattern be from mud stone, siltstone, packsand, sandstone, sandstone grit, conglomerate to layer, resistivity value increases gradually, promptly relative its top of layer, base plate are rendered as relative resistive formation.The structure development district, or it is moving layer dislocation to occur, or cranny development, tangible water-bearing structure appears in local meeting, because the electric conductivity of mine crack water body is good, all can break electrically intrinsic continuous Changing Pattern of original vertical and horizontal, can present the local electrically variation characteristic of anomalous body.The enforcement that exists for the transient electromagnetic method of exploration that above-mentioned rerum natura changes provides good geophysics precondition.In addition, transient electromagnetic method is observed pure secondary field, to contain, low-resistance precursor reactant sensitivity such as permeable structure, bulk effect is little, the resolution height.At present, the domestic Transient Electromagnetic Apparatus that only has in the ground use, in order to reduce the semispace electromagnetic interference (EMI), increase investigation depth, the high voltages (greater than 12V) that adopt more, the mode of big electric current (more than the 50A) produces pulsatile once magnetic field, and transmitting coil and receiving coil that the cable that all adopts the braiding of common single turn or multicore is made, and the described coil that transmits and receives is and directly exposes in air, and being not suitable for the essential safety requirement of use instrument under the mine, market presses for to develop and can be fit to the mining Transient Electromagnetic Apparatus that effect is used under the mine.
[summary of the invention]
The technical problems to be solved in the utility model is to provide the mining Transient Electromagnetic Apparatus that a kind of essential safety that can meet use instrument under the mine requires, reception reliability is good, be easy to carry and move.
The utility model is achieved in that a kind of mine Transient Electromagnetic Apparatus, comprise mining transient electromagnetic main frame, transmitting coil and receiving coil, described transmitting coil links to each other with mining transient electromagnetic main frame respectively with receiving coil, and adopt the polycore cable of same length, same core number to make, there is insulating sheath the outside of described polycore cable.
Described transmitting coil and receiving coil closely are fixed together with fixed block.
Described transmitting coil and receiving coil surround square, and described fixed block is for being distributed in the end of two sides of square symmetrically.
The turn ratio of described receiving coil and transmitting coil is 2: 1.
Described receiving coil adopts core core serial connection, forms multiturn coil.
Described transmitting coil is connected in series after adopting 2 core parallel connections again, forms multiturn coil.
Described mining transient electromagnetic main frame is by two of ground groups of direct supplys, MCU, internal memory, USB interface, liquid crystal display circuit, optocoupler, radiating circuit and receiving circuits are not formed altogether, receiving circuit, internal memory, liquid crystal display circuit, optocoupler, USB interface are connected with MCU respectively, wherein one group of direct supply is the MCU power supply, another group power supply is the radiating circuit power supply, optocoupler is used to isolate radiating circuit and receiving circuit, and radiating circuit is connected with receiving coil with transmitting coil respectively with receiving circuit.
Advantage of the present utility model is:
1, the transmitting coil of mining Transient Electromagnetic Apparatus of the present utility model and receiving coil adopt the outside polycore cable making that insulating sheath is arranged, and possess water-proof function, are fit to mine and use.
2, the transmitting coil of mining Transient Electromagnetic Apparatus of the present utility model is connected in series after adopting 2 core parallel connections again, form multiturn coil, receiving coil adopts core core serial connection, forms multiturn coil, therefore the turn ratio of transmitting coil and receiving coil is 1: 2, can guarantee the emissive porwer in magnetic field.
3, the transmitting coil of mining Transient Electromagnetic Apparatus of the present utility model and receiving coil closely are fixed together by fixed block, can guarantee the reliability that the transition secondary field receives.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the general system set-up synoptic diagram of Transient Electromagnetic Apparatus of the present utility model.
Fig. 2 is the transmitting coil of Transient Electromagnetic Apparatus of the present utility model and the structural representation of receiving coil.
Fig. 3 is the structural representation of the transmitting coil of Transient Electromagnetic Apparatus of the present utility model.
Fig. 4 is the synoptic diagram of connected mode of the transmitting coil of Transient Electromagnetic Apparatus of the present utility model.
Fig. 5 is the structural representation of the receiving coil of Transient Electromagnetic Apparatus of the present utility model.
Fig. 6 is the synoptic diagram of connected mode of the receiving coil of Transient Electromagnetic Apparatus of the present utility model.
[embodiment]
Seeing also Fig. 1, is the general system set-up synoptic diagram of mining Transient Electromagnetic Apparatus of the present utility model.A kind of mining Transient Electromagnetic Apparatus, comprise mining transient electromagnetic main frame 1, transmitting coil 2 and receiving coil 3, described mining transient electromagnetic main frame 1 is by two of ground groups of direct supplys altogether not, MCU, internal memory, USB interface, liquid crystal display circuit, optocoupler, radiating circuit and receiving circuit are formed, receiving circuit, internal memory, liquid crystal display circuit, USB interface, optocoupler is connected with MCU respectively, wherein one group of direct supply is the MCU power supply, another group power supply is the radiating circuit power supply, optocoupler is used to isolate radiating circuit and accepts circuit, and radiating circuit is connected with receiving coil with transmitting coil respectively with receiving circuit.
See also Fig. 2, described transmitting coil 2 and receiving coil 3 adopt the polycore cable of same length, same core number to make, and there is insulating sheath the outside of described polycore cable, and described transmitting coil and receiving coil closely are fixed together with fixed block 4.Described transmitting coil 2 and receiving coil 3 surround square, and described fixed block 4 is for being distributed in the end of two sides of square symmetrically.
Please consult Fig. 3 to 6 simultaneously, in order to guarantee the emissive porwer in magnetic field, described receiving coil adopts core core serial connection, forms multiturn coil; Described transmitting coil is connected in series after adopting 2 core parallel connections again, forms multiturn coil, and the turn ratio that makes receiving coil and transmitting coil is 2: 1.
During use, mining transient electromagnetic main frame 1 is launched pulsatile once magnetic field by transmitting coil 2 to probing medium (ore bed or country rock), after the electric current in the transmitting coil 1 disconnects suddenly, being detected medium can encourage the secondary vortices flow field to return, receive induction secondary vortices flow field by receiving coil 3, mining transient electromagnetic main frame is again the faint secondary vortices flow field that is received, convert data such as apparent resistivity to by professional algorithm, and with data storage in the instrument internal memory, measurement data being transferred in the computing machine, carry out DATA PROCESSING and analysis by special software on computers then again by USB interface.
Under the normal condition, if geologic horizon is stable, be not subjected to water enrichment area and contain the influence of permeable structure, then apparent resistivity value will not have significantly unusual, otherwise, if there is water enrichment area in geological stratification and contains, permeable structure, electrically the regularity of distribution is broken, and the exceptions area of characteristics such as apparent resistivity value reduces will occur.By professional algorithm, just can determine the tax of water enrichment area intuitively and deposit the degree of depth and position.
Owing to have unsafe factors such as dust, gas under the mine, country has strict requirement to mine with the electronic device essential safety, the utility model patent adopts emission pulsatile once magnetic field, high precision, low noise receive induction secondary vortices flow field, realized safe transient electromagnetic detecting under the mine, and, obtain mining product safety sign certificate by pacifying the detection that testing agency is formulated at the national mining product safety sign of mark center, be fit to very much the detection operation under the mine.
Claims (7)
1. mining Transient Electromagnetic Apparatus, comprise mining transient electromagnetic main frame, transmitting coil and receiving coil, described transmitting coil links to each other with mining transient electromagnetic main frame respectively with receiving coil, and adopt the polycore cable of same length, same core number to make, it is characterized in that: there is insulating sheath the outside of described polycore cable.
2. mining Transient Electromagnetic Apparatus according to claim 1 is characterized in that: described transmitting coil and receiving coil closely are fixed together with fixed block.
3. mining Transient Electromagnetic Apparatus according to claim 2 is characterized in that: described transmitting coil and receiving coil surround square, and described fixed block is for being distributed in the end of two sides of square symmetrically.
4. mining Transient Electromagnetic Apparatus according to claim 1 is characterized in that: the turn ratio of described receiving coil and transmitting coil is 2: 1.
5. mining Transient Electromagnetic Apparatus according to claim 1 is characterized in that: described receiving coil adopts core core serial connection, forms multiturn coil.
6. mining Transient Electromagnetic Apparatus according to claim 1 is characterized in that: described transmitting coil is connected in series after adopting 2 core parallel connections again, forms multiturn coil.
7. mining Transient Electromagnetic Apparatus according to claim 1, it is characterized in that: described mining transient electromagnetic main frame is by two of ground groups of direct supplys altogether not, MCU, internal memory, USB interface, liquid crystal display circuit, optocoupler, radiating circuit and receiving circuit are formed, receiving circuit, internal memory, liquid crystal display circuit, optocoupler, USB interface is connected with MCU respectively, wherein one group of direct supply is the MCU power supply, another group power supply is the radiating circuit power supply, optocoupler is used to isolate radiating circuit and receiving circuit, and radiating circuit is connected with receiving coil with transmitting coil respectively with receiving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201816384U CN201548701U (en) | 2009-12-09 | 2009-12-09 | Mining transient electromagnetic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201816384U CN201548701U (en) | 2009-12-09 | 2009-12-09 | Mining transient electromagnetic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201548701U true CN201548701U (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201816384U Expired - Fee Related CN201548701U (en) | 2009-12-09 | 2009-12-09 | Mining transient electromagnetic instrument |
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| CN (1) | CN201548701U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050769A (en) * | 2013-01-18 | 2013-04-17 | 山东大学 | Array type antenna of tunnel transient electromagnetic advanced detection for physical simulation test |
| CN103792461A (en) * | 2013-11-21 | 2014-05-14 | 国家电网公司 | Grounding grid breakpoint diagnostic method for transient electromagnetic method |
-
2009
- 2009-12-09 CN CN2009201816384U patent/CN201548701U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050769A (en) * | 2013-01-18 | 2013-04-17 | 山东大学 | Array type antenna of tunnel transient electromagnetic advanced detection for physical simulation test |
| CN103792461A (en) * | 2013-11-21 | 2014-05-14 | 国家电网公司 | Grounding grid breakpoint diagnostic method for transient electromagnetic method |
| CN103792461B (en) * | 2013-11-21 | 2016-08-17 | 国家电网公司 | A kind of grounded screen breaking point diagnosis method of transient electromagnetic method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUZHOU HUAHONG SMART SCIENCE + TECHNOLOGY CO., LTD Free format text: FORMER NAME: FUZHOU HUAHONG INTELLIGENT TECHNOLOGY DEVELOPMENT CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 350003, Fujian Fuzhou Gulou District software Avenue 89, Fuzhou Software Park industrial base two, building 9, 2 floor Patentee after: FUZHOU HUAHONG INTELLIGENT TECHNOLOGY CO., LTD. Address before: 350005, 3F, building 3, West Science Park, 8 Changting Road, Fuzhou Road, Taijiang District, Fujian, China Patentee before: Fuzhou Huahong Intelligent Technology Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| DD01 | Delivery of document by public notice |
Addressee: Yang Meixian Document name: Notification of Passing Examination on Formalities |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20151209 |
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| EXPY | Termination of patent right or utility model |