CN204302509U - A kind of transient electromagnetic method multiturn small coil dipole sniffer - Google Patents
A kind of transient electromagnetic method multiturn small coil dipole sniffer Download PDFInfo
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- CN204302509U CN204302509U CN201420622104.1U CN201420622104U CN204302509U CN 204302509 U CN204302509 U CN 204302509U CN 201420622104 U CN201420622104 U CN 201420622104U CN 204302509 U CN204302509 U CN 204302509U
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- 230000001052 transient effect Effects 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000000541 pulsatile effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a kind of transient electromagnetic method multiturn small coil dipole sniffer, comprise: emitter, transmission wire frame, receiver and reception wire frame, emitter is connected with transmission wire frame by signal cable, receiver is connected with reception wire frame by signal cable, and transmitter and receiver connects by reference to cable; Wherein send wire frame and receive wire frame and be multiturn wire frame; And sending wire frame is rectangular wire frame, and reception wire frame is circular coil.Utilize the utility model can obtain underground ore bed induced electromotive force easily.
Description
Technical field
The utility model relates to transient electromagnetic method technical field, is specifically related to a kind of transient electromagnetic method multiturn small coil dipole sniffer.
Background technology
Transient electromagnetic method utilizes earth-free loop line or ground connection line source to launch pulsatile once magnetic field to underground, at pulsatile once magnetic field tempus intercalare, utilizes the secondary inductive loop field caused in coil or earth electrode observation underground medium, thus probing medium resistivity.Transient electromagnetic method has more application because of the advantage of its uniqueness in the geophysical exploration of land.
Transient electromagnetic method is with the secondary inductive loop field of sniffer observation underground medium, and conventional sniffer has Coincident loop, Genter loop, dipole device, large loop line (great Ding Yuan), is separated loop line etc.Various sniffer has himself feature, and wherein conventional in exploration is in the wild Coincident loop and Genter loop sniffer.But, under some detection condition, owing to limiting by environment, the device such as Coincident loop and Genter loop of the transmitting coil length of side up to a hundred meters should not be used, and need to reduce coil dimension or adopt dipole device just can complete exploration object, research relevant at present and the rare report of spendable apparatus.
Summary of the invention
In view of this, the utility model proposes a kind of transient electromagnetic method multiturn small coil dipole sniffer, it sends wire frame and receives wire frame and is multiturn wire frame.
The utility model provides a kind of transient electromagnetic method multiturn small coil dipole sniffer, comprise: emitter, transmission wire frame, receiver and reception wire frame, emitter is connected with transmission wire frame by signal cable, receiver is connected with reception wire frame by signal cable, and transmitter and receiver connects by reference to cable; Wherein send wire frame and receive wire frame and be multiturn wire frame; Further, transmission wire frame is rectangular wire frame, and reception wire frame is circular coil.
Preferably, the length of side sending wire frame is 2 × 2m, and the diameter receiving wire frame is 67cm.
Preferably, the number of turn wherein sending wire frame is 8 circles, and the number of turn receiving wire frame is 64 circles.
Preferably, also comprise the power supply be connected with emitter, described power supply is EP500 type power supply.
The utility model also provides a kind of transient electromagnetic method multiturn small coil dipole sniffer, comprise: emitter, transmission wire frame, receiver and reception wire frame, emitter is connected with transmission wire frame by signal cable, receiver is connected with reception wire frame by signal cable, and transmitter and receiver connects by reference to cable; Wherein send wire frame and receive wire frame and be multiturn wire frame; Further, send wire frame and receive wire frame and be rectangular wire frame.
Preferably, the length of side sending wire frame is 2 × 2m, and the length of side receiving wire frame is 1 × 1m.
Preferably, the number of turn sending wire frame is 8 circles, and the number of turn receiving wire frame is 64 circles.
The beneficial effects of the utility model: send wire frame in transient electromagnetic method dipole sniffer of the present utility model and be multiturn wire frame with reception wire frame, by the size to transmission wire frame and reception wire frame, the number of turn, transmitting-receiving apart from isoparametric reasonable setting, make device can obtain underground ore bed induced electromotive force easily, for resistivity measurement is provided convenience, this device wire frame size is less, is applicable to the exploration operation under various environmental condition.
Accompanying drawing explanation
Fig. 1 is the easy structure schematic diagram of transient electromagnetic method dipole sniffer of the present utility model.
Fig. 2 is the concrete structure schematic diagram of transient electromagnetic method dipole sniffer of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is described in detail.
Based on transient electromagnetic method, when transmission loop line Tx and reception loop line Rx are separated, keep fixing sending and receiving apart from r, the device along side line pointwise movement is called magnetic couple source dipole device.The utility model adopts multiturn small coil dipole device as transient electromagnetic exploration device.Fig. 1 shows the easy structure of transient electromagnetic method multiturn small coil dipole sniffer of the present utility model, comprise: to the emission part of underground emitting radio frequency signal, the acceptance division receiving the back wave that emission part transmits and power supply, acceptance division is connected by reference to cable with emission part, and power supply is connected with emission part.
Pass to the emission part such as transmitting coil of certain waveform-shaped current on ground or aerial setting, thus produce an electromagnetic field at its surrounding space, in the conduction rock ore body of underground, can induced electromotive force be produced; Acceptance division such as receiving coil receives induced electromotive force, and this electromotive force contains the electrical property feature of underground medium, by suitable interpretation algorithms as one-dimensional inversion or apparent resistivity etc., obtains the structure of subterranean strata.
Fig. 2 shows the concrete structure of transient electromagnetic method dipole sniffer of the present utility model, comprises position and the direction of transmitting/receiving.Wherein emission part is rectangular wire frame Tx, is connected with emitter; Acceptance division is circular reception coil Rx, is connected with receiver, and emission part and acceptance division are multiturn wire frame.
Particularly, launch wire frame Tx and receiving coil Rx and be positioned on survey line, after a measuring point is measured, keep transmitting-receiving apart from immobilizing, Tx and Rx moves along line direction simultaneously, to the next measuring point on survey line, measures next time.
Utilize transient electromagnetic method multiturn small coil dipole sniffer of the present utility model to carry out Resistivity testing, carry out following operation:
1. apparatus suitability test.Carry out twice repeated measures in same point identical parameters, compare the uniformity of the data obtained.
2. the wire frame length of side, the number of turn, effective area is received and dispatched, transmitting-receiving distance and tranmitting frequency test.Send the wire frame length of side and directly can affect prospecting depth, under same frequency, the wire frame length of side is larger, and investigation depth is darker.Therefore, should determine to send wire frame relevant parameter according to target zone buried depth and regionally detecting experience in reality.In certain one-time detection of the present utility model, send the wire frame length of side and select 2 × 2m, totally 8 circles, receiving wire frame is 64 circles, and its effective area is 31.4m
2, meet prospecting requirement.
3. for the setting of transmitting-receiving distance, rationally should determine according to the detection of a target.When receiving coil to be positioned at outside transmitting coil remotely, its primary field received is very little, and inner at transmitting coil, and especially when sideline, primary field is larger.In certain one-time detection of the present utility model, test transmitting-receiving, apart from being set as 7-8m, meets exploration requirement.
In an embodiment of the present utility model, power acquisition EP500 type power supply, when power transit line is 50Hz, tranmitting frequency is 2.5,6.25,25Hz tri-class are optional, the lower investigation depth of frequency is larger.The test of multiple combination can be carried out before detection, determine that optimal parameter carries out data acquisition.
In an embodiment of the present utility model, power supply is external EP500 type power supply, maximum output voltage/electric current: 768Vpp/3App, and the pulse pattern that voltage exports is square wave, and pulse length can be selected in 1 second, 2 seconds, 3 seconds and 4 seconds.
In an embodiment of the present utility model, receiver is connected with computer, to carry out storage and process further by computer to the data collected, acceptance division comprises digit receiver and receiving coil.
In an embodiment of the present utility model, adopt following parameter: receiving coil effective area: 31.4m2; The number of turn: 64 circles; Diameter: 67cm; Repetition rate: 6.25Hz; Turn-off time: 260 is delicate.Transmitting coil: 2 × 2m; The number of turn: 8 circles; Emission current: 2.6 amperes.
Above, be described in detail in conjunction with specific embodiments to the technical solution of the utility model, described specific embodiment understands thought of the present utility model for helping.The derivation that those skilled in the art make on the basis of the utility model specific embodiment and modification also belong within the utility model protection domain.
Claims (7)
1. a transient electromagnetic method multiturn small coil dipole sniffer, it is characterized in that, comprise: emitter, transmission wire frame, receiver and reception wire frame, emitter is connected with transmission wire frame by signal cable, receiver is connected with reception wire frame by signal cable, and transmitter and receiver connects by reference to cable; Wherein send wire frame and receive wire frame and be multiturn wire frame; Further, transmission wire frame is rectangular wire frame, and reception wire frame is circular coil.
2. transient electromagnetic method multiturn small coil dipole sniffer as claimed in claim 1, it is characterized in that, the length of side wherein sending wire frame is 2 × 2m, and the diameter receiving wire frame is 67cm.
3. transient electromagnetic method multiturn small coil dipole sniffer as claimed in claim 2, it is characterized in that, the number of turn wherein sending wire frame is 8 circles, and the number of turn receiving wire frame is 64 circles.
4. transient electromagnetic method multiturn small coil dipole sniffer as claimed in claim 1, it is characterized in that, also comprise the power supply be connected with emitter, described power supply is EP500 type power supply.
5. a transient electromagnetic method multiturn small coil dipole sniffer, it is characterized in that, comprise: emitter, transmission wire frame, receiver and reception wire frame, emitter is connected with transmission wire frame by signal cable, receiver is connected with reception wire frame by signal cable, and transmitter and receiver connects by reference to cable; Wherein send wire frame and receive wire frame and be multiturn wire frame; Further, send wire frame and receive wire frame and be rectangular wire frame.
6. transient electromagnetic method multiturn small coil dipole sniffer as claimed in claim 5, is characterized in that, wherein, the length of side sending wire frame is 2 × 2m, and the length of side receiving wire frame is 1 × 1m.
7. transient electromagnetic method multiturn small coil dipole sniffer as claimed in claim 6, is characterized in that, wherein, the number of turn sending wire frame is 8 circles, and the number of turn receiving wire frame is 64 circles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420622104.1U CN204302509U (en) | 2014-10-24 | 2014-10-24 | A kind of transient electromagnetic method multiturn small coil dipole sniffer |
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| CN201420622104.1U CN204302509U (en) | 2014-10-24 | 2014-10-24 | A kind of transient electromagnetic method multiturn small coil dipole sniffer |
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| CN204302509U true CN204302509U (en) | 2015-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114675337A (en) * | 2022-03-22 | 2022-06-28 | 扬州蓝德森科技有限公司 | Underground depth sounding method based on multi-turn coil and transient electromagnetic method |
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2014
- 2014-10-24 CN CN201420622104.1U patent/CN204302509U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114675337A (en) * | 2022-03-22 | 2022-06-28 | 扬州蓝德森科技有限公司 | Underground depth sounding method based on multi-turn coil and transient electromagnetic method |
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