CN203350464U - Earth electromagnetic field measuring device for field source correction - Google Patents
Earth electromagnetic field measuring device for field source correction Download PDFInfo
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- CN203350464U CN203350464U CN 201320303919 CN201320303919U CN203350464U CN 203350464 U CN203350464 U CN 203350464U CN 201320303919 CN201320303919 CN 201320303919 CN 201320303919 U CN201320303919 U CN 201320303919U CN 203350464 U CN203350464 U CN 203350464U
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Abstract
Disclosed is an earth electromagnetic field measuring device for field source correction. The device comprises a geophysical instrument (1), electrode bars (2) and a correction instrument (4). The measuring device allows the correction instrument (4) and the geophysical instrument (1) to form an instrument system. The geophysical instrument (1) and the correction instrument (4) are connected with the electrode bars (2). The lower ends of the electrode bars (2) are embedded into the field source ground (3). Each instrument is equipped with a high-precision time service including a clock and GPS, so that the correction instrument (4) and the geophysical instrument (1) remain the same high-precision clock. Correct data is obtained through correction and elimination of instable interference of the ground electromagnetic field source, artificial field source manufacture is omitted, more than 80% weight is greatly reduced, and convenience of move and usage is obtained. No matter how the natural electric field source changes, field source changing value is corrected to ensure accuracy of measured data. The device has no need to be equipped with devices with interference resistance and measurement accuracy Improvement, so that cost is saved, detection efficiency and accuracy are greatly improved, and actual tests have effective results.
Description
Technical field
The utility model relates to earth geophysical prospecting technology, especially the earth electromagnetic field measurement mechanism of field source correction.
Background technology
Geophysical detection is a kind of method and the theory that the applied physics principle is reconnoitred underground mineral, geologize structure.Be called for short physical prospecting.It has utilization more widely at aspects such as engineering construction and environmental protection.The physical property that the rock ore body that underground tax is deposited or tectonic structure have based on them, scale and residing position, have corresponding physical phenomenon to be reflected near earth's surface or earth's surface, and this physical phenomenon is the part of the whole physical phenomenon of the earth.The working contents of geophysical survey is to utilize the geological instrument adapted to measure, receive the information of the various physical phenomenons of perform region, apply effective disposal route and therefrom extract the information needed, and according to the physical difference of rock ore body or structure and country rock, in conjunction with geologic condition, analyzed, make geologic interpretation, infer position, magnitude range and occurrence that detected object is deposited in underground tax, and the physical quantity etc. that reflects corresponding physical property characteristic, the map that corresponding explanation is inferred made.Geographical physical prospecting is the indispensable a kind of measure of geologic examination and geology research.
Near the information of the various physical phenomenons that various geophysical methods are measured earth's surface or earth's surface can be referred to as the information of geophysical field.Geophysical field can be divided into naturally occurring geophysical field and artificial excitation's geophysical field.The gravity field of the earth, terrestrial magnetic field, earth electric field, Temperature Field, nuclear physics field are naturally occurring geophysical fields; By secondary reflection produce elastic wave the elastic wave field of underground propagation, to underground power supply at the internal field of underground generation, the electromagnetic field inspired to underground emitting electromagnetic wave etc., belong to the artificial geophysical field excited.Geophysical field also can be divided into normal field and anomalous field.
A large amount of resistivity prospecting quasi-instruments that use in geophysical survey, field source is used made field source and nagneto-telluric field etc. as field source, made field source is too heavy, in real process, using is not to facilitate especially, the null gravity of mt field source own is very convenient in actual use quick, but because nagneto-telluric field can be shined upon, as the distant place lightening activity, earth rotation, the impact of the factors such as geologic media, it is a field source changed at any time, unstable field source causes very large impact to geophysical measurement, solve the advantage of itself null gravity of stability recycling of mt field source, practical value that will be huge energetically.Patent document is less.
The utility model content
The purpose of this utility model is to provide the earth electromagnetic field measurement mechanism of field source correction, revises the variation of natural electric field field source and obtains measurement data accurately.
The purpose of this utility model realizes by following technical measures: surveying instrument forms instrument system by correction instrument and physical prospecting instrument, physical prospecting instrument and correction instrument connecting electrode rod, the electrode bar lower end is implanted and is measured the field source the earth, the time service mode of every high-precision clock of instrument configuration and GPS, make correction instrument and physical prospecting instrument keep high-precision identical clock.
The beneficial effects of the utility model are: thus obtain data accurately by the unstable interference that the nagneto-telluric field field source is eliminated in correction, omit the artificial heaviness of manufacturing field source, greatly reduce the weight that surpasses 80%, be easy to resettlement and use; No matter which kind of the natural electric field field source does changes, thereby changes by repairing field source the accuracy that numerical value has ensured measurement data; Instrument, without adopting the devices such as anti-interference and raising measuring accuracy, is saved cost, and detection efficiency and precision increase substantially, and actual test effect is remarkable.
The accompanying drawing explanation
Fig. 1 is apparatus structure principle schematic in the utility model
Reference numeral comprises: physical prospecting instrument 1, electrode bar 2, the earth 3, correction instrument 4.
Embodiment
The utility model is according to the characteristic changed at any time of mt field source, with a correction instrument 4 observe the mt field source with the time situation of change, record its field source Changing Pattern, re-use other physical prospecting instrument 1 simultaneously and run the data based of point measurement, the field source situation of change data measured to physical prospecting instrument 1 of measured data based correction instrument 4 records are carried out the field source correction, so just can obtain the stable field source that field source is the same to artificial manufacture field source, just equally accurate with artificial manufacture field source quasi-instrument through the revised race point data of field source.The heaviness of so not only having omitted artificial manufacture field source is difficult for determining of resettlement but also obtains equally accurate measurement result, in practical application, obtains very large practical value.
Realize that device of the present utility model comprises, physical prospecting instrument 1, electrode bar 2 and correction instrument 4.
Below in conjunction with drawings and Examples, further illustrate.
Embodiment: as shown in Figure 1, surveying instrument forms instrument system by correction instrument 4 and physical prospecting instrument 1, physical prospecting instrument 1 and correction instrument 4 connecting electrode rods 2, electrode bar 2 lower ends are implanted and are measured field source the earth 3, the time service mode of every high-precision clock of instrument configuration and GPS, make correction instrument 4 and physical prospecting instrument 1 keep high-precision identical clock.
Wherein, physical prospecting instrument 1 and correction instrument 4 are identical equipment, comprise seismic instrument, electrical method instrument, magnetometer and gravity apparatus.
Wherein, every corresponding physical prospecting instrument 1 of correction instrument 4 forms combination field source corrective.
Wherein, a correction instrument 4 and one group many physical prospecting instrument 1 form instrument system, and this correction instrument 4 is as the common field source corrective of one group many physical prospecting instrument 1.
Wherein, every corresponding one group many physical prospecting instrument 1 of correction instrument 4 form combination field source corrective, by some correction instruments 4 and some groups of physical prospecting instrument 1, form instrument system.
In aforementioned, correction instrument 4 can be measured with reference to automatic process of measurement automatically according to the time that sets, and physical prospecting instrument 1 runs the some not timing and measures.What correction instrument 4 was measured is the variation of field source itself, the measured field source of correction instrument 4 is subject to the variation that differently impact of plastid forms afterwards, when measured, because field source is unsettled, so the field source correction is carried out in the variation of measured data based field source, method is as described below:
1), because the interference on instrument itself and ground, at first correction instrument 4, at first measured data carry out level and smooth computing removal noise, 53 times average formula is as follows:
Y
0=（-3y
-2+12y
-1+17y
0+12y
1-3y
2）/35
Y wherein
0mean the data in new array, y
-2, y
-1y
0y
0, y
1, y
25 data that mean the adjacent continuous in former array.
2), physical prospecting instrument 1 runs the measured data of point and carries out the field source correction according to instrument A is measured simultaneously, method is:
A) data of the correction instrument 4 after utilizing denoising level and smooth for example, as the raw data corrected, A1, A2, A3, A4, A5, A6;
B) learnt from else's experience that to make the value that arithmetic on average obtains be T0 for the data of above-mentioned a) step process,
T0=(A1+A2+A3+A4+A5+A6)/6;
C), according to the Measuring Time of physical prospecting instrument 1 one point data, find the data T1 of same time correction instrument 4;
D) value that T1-T0 obtains is the corrected value T3 of one point data, and T3 can just can bear, that is: T1-T0=T3, and one point data T4 adds the value T5 after T3 is diurnal correction, that is: T4+T3=T5; This value T5 need to be shown as separately row at one point data, and the one point data file need to show the value after original value and correction; One point data and day parameter show respectively according to being divided into two data forms.
The outstanding progress of the utility model is, be not to provide the devices such as anti-interference and raising measuring accuracy, neither increase device by artificial method and remove to compensate the earth electromagnetic field field source, but the variation of adaptation natural electric field field source is only contrasted and obtained data accurately by the numerical value of revising field source.And being compared to instruments such as increasing means for anti-jamming, raising measuring accuracy, cost is lower, and accuracy is higher, thereby thereby solves the unstable shortcoming that causes the inaccuracy of data that instrument is surveyed of the field source of natural electric field own.
The utility model has solved in prior art, because of the unstable defect that causes the data inaccuracy of earth electromagnetic field field source, for geophysical prospecting technology, obtains important breakthrough, and detection efficiency and precision increase substantially, and actual test effect is remarkable.Compared with prior art, have the following advantages:
1), light and fast: omit the artificial heaviness of manufacturing field source, greatly reduce the weight that surpasses 80%, be easy to resettlement and use;
2), data are accurate: no matter which kind of the natural electric field field source does changes, thereby changes by repairing field source the accuracy that numerical value has ensured measurement data;
3), cost is lower: instrument, without adopting the devices such as anti-interference and raising measuring accuracy, is saved cost.
4), applied widely: as not to be subject to low-resistance geologic body shielding and the high resistant geologic body is nonconducting affects, to be suitable for the exploration in various areas.
Claims (5)
1. the earth electromagnetic field measurement mechanism of field source correction, comprise physical prospecting instrument (1), electrode bar (2) and correction instrument (4), it is characterized in that: surveying instrument forms instrument system by correction instrument (4) and physical prospecting instrument (1), physical prospecting instrument (1) and correction instrument (4) connecting electrode rod (2), electrode bar (2) lower end is implanted and is measured field source the earth (3), the time service mode of every high-precision clock of instrument configuration and GPS, make correction instrument (4) and physical prospecting instrument (1) keep high-precision identical clock.
2. the earth electromagnetic field measurement mechanism of field source correction as claimed in claim 1, is characterized in that, physical prospecting instrument (1) and correction instrument (4) are identical equipment, comprise seismic instrument, electrical method instrument, magnetometer and gravity apparatus.
3. the earth electromagnetic field measurement mechanism of field source correction as claimed in claim 1, is characterized in that, the corresponding physical prospecting instrument of every correction instrument (4) (1) forms combination field source corrective.
4. the earth electromagnetic field measurement mechanism of field source correction as claimed in claim 1, it is characterized in that, a correction instrument (4) and one group many physical prospecting instrument (1) form instrument system, and this correction instrument (4) is as the common field source corrective of one group many physical prospecting instrument (1).
5. the earth electromagnetic field measurement mechanism of field source correction as claimed in claim 1, it is characterized in that, corresponding one group many physical prospecting instrument of every correction instrument (4) (1) form combination field source corrective, by some correction instruments (4) and some groups of physical prospecting instrument (1), form instrument system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320303919 CN203350464U (en) | 2013-05-29 | 2013-05-29 | Earth electromagnetic field measuring device for field source correction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320303919 CN203350464U (en) | 2013-05-29 | 2013-05-29 | Earth electromagnetic field measuring device for field source correction |
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| CN203350464U true CN203350464U (en) | 2013-12-18 |
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| CN 201320303919 Expired - Lifetime CN203350464U (en) | 2013-05-29 | 2013-05-29 | Earth electromagnetic field measuring device for field source correction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267980A (en) * | 2013-05-29 | 2013-08-28 | 上海艾都能源科技有限公司 | Geophysical prospecting method and measuring device for earth electromagnetic field source correction |
-
2013
- 2013-05-29 CN CN 201320303919 patent/CN203350464U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267980A (en) * | 2013-05-29 | 2013-08-28 | 上海艾都能源科技有限公司 | Geophysical prospecting method and measuring device for earth electromagnetic field source correction |
| CN103267980B (en) * | 2013-05-29 | 2015-10-14 | 上海艾都能源科技有限公司 | The geophysical prospecting method of earth electromagnetic field field source correction and measurement mechanism |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
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| CX01 | Expiry of patent term |