CN203480049U - PCB coil board for transient electromagnetic exploration - Google Patents
PCB coil board for transient electromagnetic exploration Download PDFInfo
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- CN203480049U CN203480049U CN201320580983.1U CN201320580983U CN203480049U CN 203480049 U CN203480049 U CN 203480049U CN 201320580983 U CN201320580983 U CN 201320580983U CN 203480049 U CN203480049 U CN 203480049U
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Abstract
The utility model relates to a PCB coil board for transient electromagnetic exploration. The PCB coil board comprises a PCB body which is provided with one or more layers of coils formed by coating copper in an etching mode. The coils are connected in series or in parallel to form the PCB coil board and are connected into a motivating and receiving circuit. According to the PCB coil board, a PCB technology is adopted, the manufacturing is perfect, the machining is convenient, and stability and reliability are achieved; the size and the placing number can be determined according to the shape of a fixing device, and the PCB coil board is suitable for different purposes; under the condition of the same size, the effective area of the PCB coil board is larger than that of a coil wound in a traditional mode, emitting and receiving magnetic moment can be effectively increased, later-period weak signal intensity is improved, and signal to noise ratio is improved; a certain layer thickness gap is reserved between different copper layer coils in a PCB, and the mutual inductance is low; and the positions of emitting and receiving coils can be adjusted freely, mutual inductance of the emitting and receiving coils is zero during orthogonality, and the PCB coil board is especially suitable for shallow layer whole course signal collection.
Description
Technical field
The PCB that the utility model relates to transient electromagnetic in a kind of transient electromagnetic PCB Coil technique, particularly a kind of hole excites, receiving coil apparatus.Can be applicable in the Transient Electromagnetic Technique of engineering detecting and resource exploration, for the probe designs of electromagnetic field, there is direct application value.
Background technology
Transient electromagnetic method is a kind of important method faster of electromagnetic prospecting field development in recent years, because its tool is responsive to post non of low resistance body reaction, resolution advantages of higher, has obtained the extensive approval in engineering circles and mineral resources exploration field.Underground works is surveyed with underground diaster prevention and control and is mainly adopted probing to coordinate the means such as geophysical survey to carry out at present.The daily geologic prediction of mine laneway, traffic tunnel need to carry out a large amount of horizontal drilling engineerings, coal face of gassy mine needs the firedamp taking-out discharging drilling of tens thousand of meters to carry out extraction, and mining geology structure also needs a large amount of drilling projects every day with disaster detection.In boring, transient electromagnetic equipment, by a leading inspecting hole (hydrology hole, geology hole, gas-discharging hole) test, can carry out imaging to the geologic anomaly around of holing, and is specially adapted to the diagnosis in advance of old dead zone, karst collapse col umn, water-bearing structure.
The measurement mechanism of Transient Electromagnetic Apparatus adopts overlapping loop line and two kinds of type of device of center loop line conventionally.Owing to being subject to the restriction of environmental baseline under mine, the overlapping loop line transmitting receiving coil length of side is generally all less than 3 meters, if the center of employing wire-retracting device, the length of side of receiving coil generally can be less than 1 meter.Be subject to the restriction in space in hole, the width of receiving coil is narrower, will cause like this useful area of receiving coil to reduce, and can have a strong impact on the amplitude that receives signal, thereby have influence on radius of investigation.And in engineering detecting, particularly in the reinforcing bar test of structural concrete, the exciting of transient electromagnetic, receiving coil width requirement are at grade.Therefore, in small scale, to anomalous body, carry out Measurement accuracy, just need to design the coil device of a kind of reliable and stable effective transmitting, reception magnetic moment.
Summary of the invention
The purpose of this utility model is the deficiency existing in order to solve above-mentioned background technology, proposes a kind of can increase and excites, receiving coil magnetic moment, reduces mutual inductance and PCB receiving coil apparatus easy to process.
For achieving the above object, the utility model adopts following technical scheme: a kind of PCB coil board for transient electromagnetic exploration, comprise PCB body, described PCB body is provided with single or multiple lift and covers the coil that copper forms through etching, described coil is connected and is formed PCB coil board by serial or parallel connection, and through connector access excite, in receiving circuit.
The thickness of described PCB coil board is 1-3mm, and length and width is 5-800mm.
Described coil is the back-shaped coil of quadrilateral or other not close-shaped copper etching coil that covers arbitrarily.
Described coil forms transmitting coil by parallel connection; Described coil forms receiving coil by series connection.
Described PCB coil board by be fixed on face of monohedron or multi-faceted column stationary installation or a plurality of upper, between each coil board again serial or parallel connection be combined into excite, receiving transducer system.
Described in each piece, between PCB coil board, leave clearance, described clearance is that millimeter is to meter level.
the beneficial effects of the utility model:coil adopts PCB technique, perfect in workmanship, easy to process, reliable and stable; The utility model coil can be determined yardstick and the number of putting according to the shape of stationary installation, is applicable to different purposes; Under unidimensional condition, larger than the coil useful area of traditional approach coiling, can effectively increase transmitting, receive magnetic moment, improve weak signal strength in late period, improve signal to noise ratio (S/N ratio); Between the inner different Cu layer line of pcb board circle, leave certain bed thickness space, mutual inductance is little; Excite, can adjust arbitrarily position between receiving coil, during quadrature, making transmitting, receiving coil mutual inductance is zero, is specially adapted to the omnidistance signals collecting of shallow-layer.
Accompanying drawing explanation
Fig. 1 is the structural representation of PCB coil of the present invention (a);
Fig. 2 is the structural representation of PCB coil of the present invention (b);
Fig. 3 is the structural representation of PCB coil of the present invention (c);
Fig. 4 is the combination schematic diagram that PCB coil board of the present invention forms;
Fig. 5 is that the present invention is for transmitting, the receiving coil schematic diagram of engineering detecting.
In figure, 1.PCB coil board, the 2. back-shaped single layer coil of etching, 3. stationary installation (epoxy matrix material), 4. lattice coil connecting hole, 5. fixed orifice, 6. connectivity port, 7.PCB transmitting receives a body coil (71. transmitting coils, 72. receiving coils), 8. etching spirality single layer coil.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
The utility model comprises PCB body, comprise PCB body, described PCB body is provided with single or multiple lift and covers copper, will cover copper and be etched into coil, coil can be connected and be formed PCB coil board by serial or parallel connection as required, and through connector access excite, in receiving circuit.Between the inner different Cu layer line of PCB coil board circle, leave certain bed thickness space, mutual inductance is little.The thickness 1-3mm of PCB coil board, length and width can be respectively 5-800mm, etched coil shape can adopt the back-shaped coil of quadrilateral or other not close-shaped copper etching coil that covers arbitrarily.Cover copper etching coil and form transmitting coil by parallel connection, by series connection, form receiving coil.Transmitting coil adopts parallel form more, strengthens transmitter current and increases transmitting magnetic moment; Receiving coil adopts series system more, strengthens coil useful area and increases reception magnetic moment.Cover copper etching coil convenient according to magnetic moment requirement design, by etching and processing, stable performance, convenient standardized production in batches goes out PCB coil board.PCB coil board can be fixed on face of monohedron or multi-faceted column stationary installation or a plurality of upper, between each coil board by wire again serial or parallel connection be combined into different demands and excite, receiving transducer system.Between each piece PCB coil board, leave clearance, clearance be millimeter to meter level, convenient combination, as the distance of transmitting, receiving coil, ensure excite, the signal to noise ratio (S/N ratio) of receiving coil and the unification of resolution.
Embodiment 1: as shown in Figure 1, PCB coil board 1 is positioned in a rectangular stationary installation (epoxy matrix material) 3, in PCB coil board, by the back-shaped single layer coil 2 of a plurality of etchings, formed, its two ends are fixed on PCB coil board in stationary installation 3 with fixed orifice 5, the back-shaped single layer coil of a plurality of etchings 2 series connection access 6 places, connectivity port.Multilayer copper-clad can carry out connection in series-parallel by lattice coil connecting hole 4 as required and be connected, and forms the exciting of different demands, receiving coil form, and by connector 6 accesses excite, in receiving circuit.
Embodiment 2: in PCB coil board, only have as different from Example 1 a back-shaped single layer coil 2 of etching, as shown in Figure 2.
Embodiment 3: in PCB coil board, a plurality of etching spirality single layer coils 8, consist of as different from Example 1, as shown in Figure 3.
Embodiment 4:PCB coil board can be applicable in engineering detecting Transient Electromagnetic Technique, and as shown in Figure 5, PCB transmitting receives one coil board 7 and is combined into by transmitting coil 71 and receiving coil 72, employing be transmitting coil 71 outside, receiving coil 72 is in interior form.
Above are only embodiment of the present utility model, to one skilled in the art, the utility model has multiple change and variation.Allly within invention thought of the present utility model and principle, make any modification, be equal to replacement, improve etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. the PCB coil board of exploring for transient electromagnetic, comprise PCB body, it is characterized in that: described PCB body is provided with single or multiple lift and covers the coil that copper forms through etching, described coil is connected and is formed PCB coil board by serial or parallel connection, and through connector access excite, in receiving circuit.
2. the PCB coil board for transient electromagnetic exploration according to claim 1, is characterized in that: the thickness of described PCB coil board is 1-3mm, and length and width is 5-800mm.
3. the PCB coil board for transient electromagnetic exploration according to claim 1, is characterized in that: described coil is the back-shaped coil of quadrilateral or other not close-shaped copper etching coil that covers arbitrarily.
4. the PCB coil board for transient electromagnetic exploration according to claim 1, is characterized in that: described coil forms transmitting coil by parallel connection; Described coil forms receiving coil by series connection.
5. the PCB coil board for transient electromagnetic exploration according to claim 1, it is characterized in that: described PCB coil board by be fixed on face of monohedron or multi-faceted column stationary installation or a plurality of upper, between each coil board again serial or parallel connection be combined into excite, receiving transducer system.
6. the PCB coil board for transient electromagnetic exploration according to claim 5, is characterized in that: described in each piece, between PCB coil board, leave clearance, described clearance is that millimeter is to meter level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320580983.1U CN203480049U (en) | 2013-09-18 | 2013-09-18 | PCB coil board for transient electromagnetic exploration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320580983.1U CN203480049U (en) | 2013-09-18 | 2013-09-18 | PCB coil board for transient electromagnetic exploration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203480049U true CN203480049U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320580983.1U Expired - Lifetime CN203480049U (en) | 2013-09-18 | 2013-09-18 | PCB coil board for transient electromagnetic exploration |
Country Status (1)
| Country | Link |
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| CN (1) | CN203480049U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472488A (en) * | 2013-09-18 | 2013-12-25 | 安徽惠洲地下灾害研究设计院 | PCB coil board for transient electromagnetic surveying |
| CN105759320A (en) * | 2016-04-22 | 2016-07-13 | 周丹 | Underground mineral product detector provided with magnetic field intensity detector |
| CN108089231A (en) * | 2018-02-23 | 2018-05-29 | 中南民族大学 | Three-dimensional gradient vector method Transient Electromagnetic Apparatus and its application |
| CN109490802A (en) * | 2018-11-16 | 2019-03-19 | 吉林大学 | The magnetic resonance coil system and detection method of the remote forward probe of small space |
-
2013
- 2013-09-18 CN CN201320580983.1U patent/CN203480049U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472488A (en) * | 2013-09-18 | 2013-12-25 | 安徽惠洲地下灾害研究设计院 | PCB coil board for transient electromagnetic surveying |
| CN103472488B (en) * | 2013-09-18 | 2016-02-10 | 安徽惠洲地质安全研究院股份有限公司 | For the PCB coil plate of transient electromagnetic exploration |
| CN105759320A (en) * | 2016-04-22 | 2016-07-13 | 周丹 | Underground mineral product detector provided with magnetic field intensity detector |
| CN108089231A (en) * | 2018-02-23 | 2018-05-29 | 中南民族大学 | Three-dimensional gradient vector method Transient Electromagnetic Apparatus and its application |
| CN109490802A (en) * | 2018-11-16 | 2019-03-19 | 吉林大学 | The magnetic resonance coil system and detection method of the remote forward probe of small space |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI HUIZHOU GEOLOGY SECURITY INSITUTE CO., LTD. Free format text: FORMER NAME: ANHUI HUIZHOU INSTITUTE OF SUBTERRANEAN CALAMITY |
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| CP01 | Change in the name or title of a patent holder |
Address after: No. 5 Tongchuang hi tech Zone of Anhui province Tianzhi 230088 Hefei Road, building 3 room 406 Patentee after: ANHUI HUIZHOU GEOLOGY SECURITY INSTITUTE Co.,Ltd. Address before: No. 5 Tongchuang hi tech Zone of Anhui province Tianzhi 230088 Hefei Road, building 3 room 406 Patentee before: Anhui Huizhou Institute of Subterranean Calamity |
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| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |