CN202075424U - Transient electromagnetic method central loop three-component and overlap loop receiving device - Google Patents
Transient electromagnetic method central loop three-component and overlap loop receiving device Download PDFInfo
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- CN202075424U CN202075424U CN2011200538213U CN201120053821U CN202075424U CN 202075424 U CN202075424 U CN 202075424U CN 2011200538213 U CN2011200538213 U CN 2011200538213U CN 201120053821 U CN201120053821 U CN 201120053821U CN 202075424 U CN202075424 U CN 202075424U
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Abstract
The utility model discloses a transient electromagnetic method central loop three-component and overlap loop receiving device, comprising a transmitting coil. An overlap loop receiving device is arranged in the transmitting coil, and a central loop three-component receiving device is arranged in the central position of the overlap loop receiving device. By using the transient electromagnetic method central loop three-component and overlap loop receiving device of the utility model, the problem is solved effectively that the conventional receiving device is interfered easily by low resistance geological bodies of which the shallow layers are exposed out the earth surface.
Description
Technical field
The utility model geophysics transient electromagnetic prospecting instrument technical field is specifically related to transient electromagnetic method center loop line three-component and adds overlapping loop line receiving trap.
Background technology
Transient electromagnetic method is in engineering investigation, need to determine accurately the position and the trend of structure, observe the distribution situation that can obtain the semispace transient electromagnetic field by Z, X and three quadrature components of Y,, the center and the trend of structure are made comparatively accurately judgement by three-component data processing.
Existing center loop line three-component receiving trap is single form, and the tubulose multiturn coils that magnetic core is housed that adopt constitute more, and area coil is little, and dependence increases the number of turn and improves signal intensity.This receiving trap volume is little, and work is convenient.But on yeath exposure stratum or magnetic iron ore exposure stratum and metallic conduit area, the shallow face of land, often be subjected to ferromagnetism easily and disturb, have a strong impact on the measurement quality.
Summary of the invention
The purpose of this utility model provides a kind of transient electromagnetic method center loop line three-component and adds overlapping loop line receiving trap, has solved the problem that existing receiving trap is subjected to the low-resistance geologic body interference of shallow-layer crop out easily effectively.
The technical scheme that the utility model adopted is, transient electromagnetic method center loop line three-component adds overlapping loop line receiving trap, comprise transmitting coil, transmitting coil is the single turn rectangle frame loop construction of 3 meters of the length of sides, the inside that is positioned at transmitting coil is provided with overlapping loop line receiving coil, overlapping loop line receiving coil is 4 circle rectangle frame loop constructions of 3 meters of difference modes and the length of sides, the center that is positioned at overlapping loop line receiving coil inside is provided with center loop line three-component receiving coil, and center loop line three-component receiving coil is made up of 150 circle rectangle frame coils of 0.5 meter of quadrature setting and three length of side being connected through the hinge.
The beneficial effects of the utility model are by the overlapping loop line received signal of reference group, can improve the performance of the shallow-layer measurement of transient electromagnetic method greatly, reduce the interference of shallow-layer low-resistance geologic body.
Description of drawings
Fig. 1 is that the utility model transient electromagnetic method center loop line three-component adds overlapping loop line receiving trap structural representation.
Wherein, 1. transmitting coil, 2. overlapping loop line receiving coil, 3. center loop line three-component receiving coil.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1, the utility model transient electromagnetic method center loop line three-component adds overlapping loop line receiving trap, comprise transmitting coil 1, transmitting coil 1 is the single turn rectangle frame loop construction of 3 meters of the length of sides, the inside that is positioned at transmitting coil 1 is provided with overlapping loop line receiving coil 2, overlapping loop line receiving coil 2 is 4 circle rectangle frame loop constructions of 3 meters of difference modes and the length of sides, the center that is positioned at overlapping loop line receiving coil 2 inside is provided with center loop line three-component receiving coil 3, center loop line three-component receiving coil 3 is by quadrature setting and the X coil that is connected through the hinge, Y coil and Z coil are formed, the X coil, Y coil and Z coil are 150 circle rectangle frame coils of 0.5 meter of the length of side.
When measuring, center loop line three-component receiving coil 3 will be according to magnetic north N direction location, and selected X coil or Y coil are in the N orientation (district remains unchanged in whole survey), and assurance Z coil is at horizontal level.
After transmitting coil 1 power supply finishes, in center loop line three-component receiving coil 3, produce 3 component signals of the transition secondary field that includes the generation of each layer geologic body, simultaneously, overlapping loop line receiving coil 2 has also received the Z component signal of transition secondary field, with 3 components and the overlapped signal input channel of these signals access instrument correspondences, after amplifying, gathers by instrument.
Owing to received the Z component signal of center loop line three component signal and overlapping loop line simultaneously.When two Z component signal differences are big then with the Z component signal of overlapping loop line as the main signal of measuring.So just avoided when taking place to disturb the state of Z component invalidating signal.Improved the confidence level of measuring widely.
The transient electromagnetic instrument of semaphore request 4 passages, the Z component signal of center loop line three component signal and overlapping loop line inserts the respective channel of instrument respectively, and is equipped with suitable impedance and gain.When power supply finishes to begin to measure, can receive X coil, Y coil and Z coil signal simultaneously.
Data processing: after measure finishing, at first the Z component signal data gain normalization of the overlapping loop line that receives is handled, converted inductive voltage value into real input.Then data are carried out electric current normalized data and are transferred μ v/A unit to, carry out area normalization again and handle, and make that data are μ v/A (m
2) unit.
X, Y, Z component signal data gain normalization to the center loop line that receives are handled, and convert the inductive voltage value into real input.Then data are carried out electric current normalized data and are transferred μ v/A unit to, carry out area normalization again and handle, and make that data are μ v/A (m
2) unit.
Again 2 Z component data are compared processing, observe 2 Z component signal differences and preceding signal trend and change, the judgment signal influence that whether is interfered.
The Z component signal of overlapping loop line under disturbed condition, the degree that is interfered is far smaller than the Z component signal of center loop line.The Z component signal of overlapping loop line as main signal, can be avoided the signal deletion under disturbing.
Claims (1)
1. transient electromagnetic method center loop line three-component adds overlapping loop line receiving trap, it is characterized in that, comprise transmitting coil (1), described transmitting coil (1) is the single turn rectangle frame loop construction of 3 meters of the length of sides, the inside that is positioned at described transmitting coil (1) is provided with overlapping loop line receiving coil (2), described overlapping loop line receiving coil (2) is 4 circle rectangle frame loop constructions of 3 meters of difference modes and the length of sides, be positioned at the inner center of described overlapping loop line receiving coil (2) and be provided with center loop line three-component receiving coil (3), described center loop line three-component receiving coil (3) is made up of 150 circle rectangle frame coils of 0.5 meter of quadrature setting and three length of side being connected through the hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200538213U CN202075424U (en) | 2011-03-03 | 2011-03-03 | Transient electromagnetic method central loop three-component and overlap loop receiving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200538213U CN202075424U (en) | 2011-03-03 | 2011-03-03 | Transient electromagnetic method central loop three-component and overlap loop receiving device |
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| CN202075424U true CN202075424U (en) | 2011-12-14 |
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| CN2011200538213U Expired - Fee Related CN202075424U (en) | 2011-03-03 | 2011-03-03 | Transient electromagnetic method central loop three-component and overlap loop receiving device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499839A (en) * | 2013-09-18 | 2014-01-08 | 安徽惠洲地下灾害研究设计院 | Low-noise transient electromagnetism measuring device with function of automatically eliminating interference of primary field |
| CN103499840A (en) * | 2013-09-18 | 2014-01-08 | 安徽惠洲地下灾害研究设计院 | Whole-course transient electromagnetism synchronous depth sounding device |
| CN103823244A (en) * | 2014-03-11 | 2014-05-28 | 吉林大学 | Magnetic resonance three-component noise removing device and noise removing method |
| CN106772644A (en) * | 2016-12-14 | 2017-05-31 | 中国矿业大学 | mine transient electromagnetic three-component detection method |
| CN107290790A (en) * | 2017-08-03 | 2017-10-24 | 中国水利水电科学研究院 | A kind of three-component transient electromagnetic method reception device |
| CN107367764A (en) * | 2017-07-28 | 2017-11-21 | 吉林大学 | A kind of apparatus and method of accurate measurement dud transient electromagnetic characteristic response |
-
2011
- 2011-03-03 CN CN2011200538213U patent/CN202075424U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499839A (en) * | 2013-09-18 | 2014-01-08 | 安徽惠洲地下灾害研究设计院 | Low-noise transient electromagnetism measuring device with function of automatically eliminating interference of primary field |
| CN103499840A (en) * | 2013-09-18 | 2014-01-08 | 安徽惠洲地下灾害研究设计院 | Whole-course transient electromagnetism synchronous depth sounding device |
| CN103499839B (en) * | 2013-09-18 | 2016-04-13 | 安徽惠洲地质安全研究院股份有限公司 | Primary field interference is from the low noise Transient electromagnetic measure device disappeared |
| CN103499840B (en) * | 2013-09-18 | 2016-08-31 | 安徽惠洲地质安全研究院股份有限公司 | A kind of omnidistance transient electromagnetic synchronizes sounding gear |
| CN103823244A (en) * | 2014-03-11 | 2014-05-28 | 吉林大学 | Magnetic resonance three-component noise removing device and noise removing method |
| CN103823244B (en) * | 2014-03-11 | 2015-04-22 | 吉林大学 | Magnetic resonance three-component noise removing device and noise removing method |
| CN106772644A (en) * | 2016-12-14 | 2017-05-31 | 中国矿业大学 | mine transient electromagnetic three-component detection method |
| CN107367764A (en) * | 2017-07-28 | 2017-11-21 | 吉林大学 | A kind of apparatus and method of accurate measurement dud transient electromagnetic characteristic response |
| CN107290790A (en) * | 2017-08-03 | 2017-10-24 | 中国水利水电科学研究院 | A kind of three-component transient electromagnetic method reception device |
| CN107290790B (en) * | 2017-08-03 | 2023-12-29 | 中国水利水电科学研究院 | Three-component transient electromagnetic method receiving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20140303 |