CN203480045U - Roadway hole transient electromagnetic device - Google Patents
Roadway hole transient electromagnetic device Download PDFInfo
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- CN203480045U CN203480045U CN201320579632.9U CN201320579632U CN203480045U CN 203480045 U CN203480045 U CN 203480045U CN 201320579632 U CN201320579632 U CN 201320579632U CN 203480045 U CN203480045 U CN 203480045U
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- transient electromagnetic
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- roadway
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Abstract
The utility model relates to a roadway hole transient electromagnetic device. The device comprises a transmitting device and a receiving device, wherein the transmitting device and the receiving device are separately arranged and are respectively connected with a host; a drill hole and a roadway are taken as a whole, the transmitting device and the receiving device are separately arranged therein when the roadway hole transient electromagnetic device is used for measurement, the host controls the time of the transmitting device and the receiving device to be synchronized, and adopts a transient electromagnetic method for measuring an anomalous body. When the roadway hole transient electromagnetic device is used for measurement, the roadway hole transient electromagnetic device is closer to the anomalous body, is less affected by man-made conductors, and is high in signal to noise ratio; a transmitting coil is arranged in the roadway, parameters such as turn number and side length of the transmitting coil can be increased relative to a narrow drill hole space, the transmitting magnetic moment can be increased, and the coefficient of mutual induction is almost zero; the volume effect influence of roadway transient electromagnetic not-contact type detection can be effectively reduced; and the design of the multi-component receiving coil is variety in assembling forms, such as the adoption of a PCB receiving coil form, the effective receiving area can be enlarged, and the detection radius can be increased, thereby being capable of effectively obtaining geologic body information within a certain range around the drill hole, and improving the discrimination accuracy of the anomalous body.
Description
Technical field
The utility model relates to geophysical survey device and measuring method field, particularly hole, a kind of lane transient electromagnetic device.
Background technology
Transient electromagnetic method (TEM) is a kind of important method faster of Exploration Domain development in recent years, for other geophysical methods, it has the advantages such as investigation depth is large, resolution is high, abundant information, and its range of application relates to the every field such as ore deposit, ground, oil, water conservancy.Mine TEM working method is varied, as sending and receiving apparatus in coincide-loop, center wire-retracting device, hole etc., they have its relative merits separately, shortcoming is mainly reflected in the following aspects: overlapping or center wire-retracting device resolution is relatively low, and be exposed in mine, be subject to the interference of the humanistic environment such as various extractive equipments, ventilation equipment in mine, had a strong impact on detection accuracy and the accuracy of instrument; Boring instantaneous change device is owing to launching in hole, and its shortcoming is that generally to launch magnetic moment little, and depth of exploration is less.During underground works is surveyed at present, main probing and the geophysical prospecting method of relying on detected disaster.Probing has the limitation of " a peephole view "; And underground space transient electromagnetic method is subject to bulk effect impact, contactless detection geologic anomaly body precision is limited, while particularly surveying more remote anomalous body, therefore, in conjunction with probing, physical prospecting feature, proposes hole, lane transient electromagnetic detecting very necessary.
Summary of the invention
The purpose of this utility model is the deficiency existing in order to solve above-mentioned background technology, propose a kind ofly at tunnel drilling orifice, to carry out the transmitting of the large coil of multiturn, in boring, carry out the reception of multiturn small coil, use transient electromagnetic method to carry out to anomalous body around boring hole, lane transient electromagnetic device and the measuring method effectively surveyed, thereby reach the objects such as antijamming capability is strong, transmitting magnetic moment is large, detection accuracy is high.
For achieving the above object, the utility model adopts following technical scheme: hole, lane transient electromagnetic device, comprise emitter and receiving trap, and both split and are connected with main frame respectively; Described emitter comprises multifrequency transmitter, transmitting coil, an A/D collecting unit and the primary scene programmable logic cells (hereinafter to be referred as a FPGA) connecting successively, through first interface, is connected with main frame; Described receiving trap comprises receiving coil, the 2nd A/D collecting unit and the secondary scene programmable logic cells (hereinafter to be referred as the 2nd FPGA) connecting successively, through the second interface, is connected with main frame; Described main frame carries out time synchronized, parameter setting and the data of receiving is shown and pre-service transmitting, receiving trap.
A described FPGA also accesses the first random access memory (hereinafter to be referred as a RAM), and the data that a described RAM processes a FPGA are stored, then read by first interface and deposit main frame in it.Described transmitting coil is powered by excitation power supply.
Described the 2nd FPGA also accesses respectively the second random access memory (hereinafter to be referred as the 2nd RAM) and for the electronic compass of real time record receiving trap angle information.
Described receiving coil can be single or many components receiving coil, list or many components receiving transducer, and each component receiving coil or component receiving transducer are separately fixed on one of them face of pedestal.Described single or many components receiving coil employing PCB receiving coil.
Described first and second interface adopts RS485 or network interface.
Transient electromagnetic measuring method of the present utility model, comprises the following steps:
(1) emitter is positioned in tunnel, wherein, the normal direction of transmitting coil is parallel to drilling axis direction; By pvc pipe (as Φ 50 or Φ 40), receiving trap is sent in specified measurement boring;
(2) transmitting is set in main frame, receives parameter and to time synchronized order under main frame;
(3) by electronic compass, measure the angle information of one-component receiving coil or one-component receiving transducer, the angle of other coil is obtained by structural relation;
(4) by excitation power supply, to transmitting coil, power, list/many components receiving coil obtains anomalous body secondary field induced signal by the 2nd A/D collecting unit, signal is sent into primary scene programmable logic cells and deposited the first random access memory in, and read after the first random access memory data with primary scene programmable logic cells, through RS485 or network interface, deposit main frame in, by main frame, show and pre-service;
(5) in boring, receiving trap is sent into diverse location by pvc pipe (as Φ 50 or Φ 40), according to above-mentioned (3)-(4) step, carry out work, obtain the corresponding induced signal of different depth, form the physical property infomation of diverse location.
In step (2), described transmitting, reception parameter are transmission frequency, emitting voltage, sampling interval ,Ce road number, stacking fold, sampling time; Described main frame shows and pre-service the data of receiving.
In step (3), described angle information be position angle, roll angle and bow, elevation information.
From above-mentioned technical approach; The utility model is done boring, tunnel as a whole, and transmitting, receiving trap are separated, and by host computer control transmitting, receiving trap time synchronized, uses transient electromagnetic method to measure anomalous body.
the beneficial effects of the utility model:with respect to tunnel device (as coincide-loop, center wire-retracting device), the utility model device is more close to anomalous body, and receiving trap is positioned in boring, affected by artificial conductor little, and signal to noise ratio (S/N ratio) is high; Transmitting coil is positioned in tunnel, with respect to very narrow and small borehole space, can strengthen the parameters such as the number of turn, the length of side of transmitting coil, improves transmitting magnetic moment, and transmitting coil normal direction is perpendicular to drilling axis direction, and coefficient of mutual inductance is almost nil; The design of transmitting, receiving trap, can effectively reduce the bulk effect impact of the contactless detection of tunnel transient electromagnetic; The design of many components receiving coil, its array configuration can be various, as adopted PCB receiving coil form, can increase capture area, improve radius of investigation, thereby can effectively obtain the boring geologic body information in certain limit around, greatly improve the precision that anomalous body is differentiated.
Accompanying drawing explanation
Fig. 1 is the utility model theory diagram.
Fig. 2 is the structural representation of the utility model embodiment mono-.
Fig. 3 is receiving trap structural representation in the utility model embodiment mono-.
In figure, 1. tunnel, 2. emitter (each device label of emitter: 21. multifrequency transmitters, 22. excitation power supplies, 23. transmitting coils, 24. the one A/D collecting units, 25. the one FPGA, 26. the one RAM, 27. power supply A, 28. first interfaces), 3. boring, 4. receiving trap, (each device label of receiving trap: 41. receiving coil 42. electronic compasss, 43. the 2nd RAM, 44. the 2nd A/D collecting units, 45. the 2nd FPGA, 46. power supply B, 47. second interfaces), 5. transmitting loop cable, 6. pedestal, 7. drilling depth scale mark, 8. transmitting goes between, 9. main frame.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
Embodiment mono-:
As shown in Figure 1, Figure 2 and Figure 3, hole, lane transient electromagnetic device comprises main frame 9 and is attached thereto respectively emitter 2 and receiving trap 4.When measuring, emitter 2 and receiving trap 4 are positioned over respectively in tunnel 1 and boring 3.The utility model is done boring, tunnel as a whole, and transmitting, receiving trap are separated, and by host computer control transmitting, receiving trap time synchronized, uses transient electromagnetic method to measure anomalous body.
Emitter comprises multifrequency transmitter 21, excitation power supply 22, transmitting coil 23, an A/D collecting unit 24, a FPGA25 and the first interface 28 connecting successively.The one FPGA also accesses a RAM26 and power supply A27.Excitation power supply 22 is to transmitting coil 23 power supplies, and power supply A27 powers to a FPGA25.
Receiving trap 4 comprises receiving coil 41, the 2nd A/D collecting unit 44, the 2nd FPGA45 and the second interface 47 connecting successively.The 2nd FPGA also accesses electronic compass 42, the 2nd RAM43 and power supply B46.Access electronic compass 42 is for the angle information of real time record stationary installation, as position angle, roll angle and the angle of pitch etc.Excitation power supply 22 is to transmitting coil 23 power supplies, and power supply B46 powers to the 2nd FPGA.First interface 28 and the second interface 47 all adopt RS485 or network interface.Receiving coil 41 adopts many components receiving coil, and each component receiving coil is separately fixed on one of them face of pedestal 6.The number of the component that the 2nd A/D collecting unit can adopt according to receiving coil is determined the number of A/D acquisition channel.The design of many components receiving coil, its array configuration can be various, as adopted PCB receiving coil form, can increase capture area, improve radius of investigation, thereby can effectively obtain the boring geologic body information in certain limit around, improve the discrimination precision to anomalous body.
PCB receiving coil is on PCB body, to be provided with the coil that single or multiple lift cloth copper forms through etching, and coil is connected and is formed PCB coil board by serial or parallel connection, and through connector access excite, in receiving circuit.
In transmitter-receiver device, FPGA is used for controlling A/D collecting unit, as controlled sampling rate, filter factor etc.; A/D collecting unit is sent the signal of collection into FPGA and is processed; RAM stores for the data that FPGA is processed, then through RS485 interface, deposits main frame in after reading with FPGA.
Main frame 9 is for carrying out time synchronized, parameter setting, the data that receive being shown and pre-service etc. to transmitting, receiving trap.
Embodiment bis-:
Be receiving trap with the difference of embodiment mono-, receiving coil is receiving transducer, adopts three-component form.Also can adopt simple component receiving transducer form.
Embodiment tri-: be the design of simple component receiving coil with the difference of embodiment mono-, as adopt PCB receiving coil form, and can increase capture area, improve radius of investigation, thereby can effectively obtain the geologic body information in certain limit around holing, greatly improve the precision that anomalous body is differentiated.
Embodiment tetra-: be the parallel placement of many components receiving coil with the difference of embodiment mono-, corresponding, the pedestal of fixed reception coil has two faces at least, and according to real work needs, pedestal can be tetrahedron, hexahedron, octahedron, even more polyhedron.
Hole, lane transient electromagnetic measuring method, comprises the following steps:
(1) emitter is positioned in tunnel, wherein, the normal direction of transmitting coil is parallel to drilling axis direction; By pvc pipe (as Φ 50 or Φ 40), receiving trap is sent in specified measurement boring;
(2) transmitting is set in main frame, receives parameter and to time synchronized order under main frame;
(3) by electronic compass, measure the angle information of one-component receiving coil or one-component receiving transducer, the angle of other coil is obtained by structural relation;
(4) by excitation power supply, to transmitting coil, power, list/many components receiving coil obtains anomalous body secondary field induced signal by the 2nd A/D collecting unit, signal is sent into primary scene programmable logic cells and deposited the first random access memory in, and read after the first random access memory data with primary scene programmable logic cells, through RS485 or network interface, deposit main frame in, by main frame, show and pre-service;
(5) in boring, receiving trap is sent into diverse location by pvc pipe (as Φ 50 or Φ 40), according to above-mentioned (3)-(4) step, carry out work, obtain the corresponding induced signal of different depth, form the physical property infomation of diverse location.
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. hole, lane transient electromagnetic device, is characterized in that: comprise emitter and receiving trap, both split and are connected with main frame respectively; Described emitter comprises multifrequency transmitter, transmitting coil, an A/D collecting unit and the primary scene programmable logic cells connecting successively, through first interface, is connected with main frame; Described receiving trap comprises receiving coil, the 2nd A/D collecting unit and the secondary scene programmable logic cells connecting successively, through the second interface, is connected with main frame.
2. hole, lane according to claim 1 transient electromagnetic device, it is characterized in that: described primary scene programmable logic cells also accesses the first random access memory, the data that described the first random access memory is processed primary scene programmable logic cells are stored, then read by first interface and deposit main frame in it.
3. hole, lane according to claim 1 transient electromagnetic device, is characterized in that: described secondary scene programmable logic cells also accesses respectively the second random access memory and for the electronic compass of real time record receiving trap angle information.
4. hole, lane according to claim 1 transient electromagnetic device, is characterized in that: described first and second interface adopts RS485 or network interface.
5. hole, lane according to claim 1 transient electromagnetic device, it is characterized in that: described receiving coil is single or many components receiving coil, or adopting single or many components receiving transducer, each component receiving coil/probe of described many components receiving coil/probe is separately fixed on one of them face of pedestal.
6. hole, lane according to claim 5 transient electromagnetic device, is characterized in that: described single or many components receiving coil employing PCB receiving coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579632.9U CN203480045U (en) | 2013-09-18 | 2013-09-18 | Roadway hole transient electromagnetic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579632.9U CN203480045U (en) | 2013-09-18 | 2013-09-18 | Roadway hole transient electromagnetic device |
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| Publication Number | Publication Date |
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| CN203480045U true CN203480045U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320579632.9U Expired - Lifetime CN203480045U (en) | 2013-09-18 | 2013-09-18 | Roadway hole transient electromagnetic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499841A (en) * | 2013-09-18 | 2014-01-08 | 安徽惠洲地下灾害研究设计院 | Roadway-hole transient electromagnetic device and measuring method |
-
2013
- 2013-09-18 CN CN201320579632.9U patent/CN203480045U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499841A (en) * | 2013-09-18 | 2014-01-08 | 安徽惠洲地下灾害研究设计院 | Roadway-hole transient electromagnetic device and measuring method |
| CN103499841B (en) * | 2013-09-18 | 2016-04-13 | 安徽惠洲地质安全研究院股份有限公司 | Hole, lane transient electromagnetic device and measuring method |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |