CN102944799B - Device for measuring electrical property of rock/ore specimen - Google Patents
Device for measuring electrical property of rock/ore specimen Download PDFInfo
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- CN102944799B CN102944799B CN201210499961.2A CN201210499961A CN102944799B CN 102944799 B CN102944799 B CN 102944799B CN 201210499961 A CN201210499961 A CN 201210499961A CN 102944799 B CN102944799 B CN 102944799B
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Abstract
The invention discloses a device for measuring electrical property of a rock/ore specimen. The device comprises two Cu-CuSO4 non-polarizing electrodes, insulating screw rods (2) and a measuring instrument (11), wherein the Cu-CuSO4 non-polarizing electrodes are measuring specimen racks (1); the two measuring specimen racks (1) are connected through at least three insulating screw rods (2); at least one insulating screw rod (2) is provided with scales; the receiving electrode ends of the two measuring specimen racks (1) are opposite to each other; and during measurement, the receiving electrode ends of the two measuring specimen racks (1) are respectively and fixedly connected with a measured specimen (10) through a specimen coupling object (9). According to the device, the overpotential influence of a two-electrode device can be eliminated; an IP effect is eliminated by filling saturated copper sulfate solution into a liquid accommodating conducting tube (6) and forming the Cu-CuSO4 non-polarizing surfaces on two sides of the measuring electrodes; the length of the measured specimen can be read; and moreover, the device can be used for measuring various electrical parameters such as the rock/ore specimen resistivity, polarizability, charging rate, complex resistivity and phase.
Description
Technical field
Patent of the present invention belongs to the petrophysics field in geophysics, relates to the electrical measurement mechanism of a kind of rock or specimen of ore, particularly the electrical measurement mechanism of a kind of boring or ground surface sample sample.
Background technology
Rock or ore electric characteristics are the ties of survey data, formation information and geological anomalous body trinity contact, are also the foundations that the process of resistivity prospecting measured data is explained.Measure the electrical method of rock sample and mainly contain little four poles of outcrop, the measurement of indoor sample and geophysical well logging, but because outcrop is fewer and geophysical well logging influence factor is many.Indoor sample measurement becomes the main method understanding rock resistivity.Generally collection ground or drilling rock sample cut into regular regular hexahedron or right cylinder, then soak, dry rear use resistivity instrument or other electrical instrument adopt two poles or four pole devices to measure.Four pole device operations relatively bother, and when potential electrode two ends, are difficult to again find and measure its accurate location, and affect by rock texture huge; Two pole devices are easy and simple to handle, but owing to measuring and shared existence " overpotential " impact of transmitting electrode, easily cause measurement inaccurate.
Summary of the invention
The object of the invention is to overcome the defect of prior art in two poles of above-mentioned rock or specimen of ore and four pole devices, the measurement of two pole devices is separated with transmitting electrode; The rock of feature or the electrical measurement mechanisms of specimen of ore such as a kind of compact conformation, small and exquisite, easy to use, operability are provided.
Design proposal of the present invention is: it comprises two Cu-CuSO
4non-polarizing electrode, insulation blanket stud and surveying instrument, described Cu-CuSO
4the structure of non-polarizing electrode is for measuring specimen holder, and measure between specimen holder for two and connected by least three insulation blanket studs, wherein at least one is provided with scale, measures the receiving electrode end position of specimen holder in opposite directions for two; During measurement, two receiving electrode ends measuring specimen holder are fixedly connected with tested sample respectively by sample couplings.
Preferred: described measurement specimen holder comprises base, powered stent and measurement support, described powered stent and measurement mid-stent correspondence position are provided with groove, transmitting electrode is connected with powered stent by groove, the electrode contact bar of transmitting electrode passes from the aperture powered stent, receiving electrode is connected with measurement support by another groove, the electrode contact bar of receiving electrode passes from the aperture measured support, contain liquid contact tube two ends and the encapsulated coil at two ends and the transmitting electrode on both sides and powered stent and receiving electrode and measure between support and be tightly connected, described powered stent is connected with the both sides of base respectively with measurement support.
Fill with copper/saturated copper sulphate solution in described Sheng liquid contact tube, contain in liquid contact tube cylinder after closing the opening containing liquid contact tube and do not interspace, described Sheng liquid contact tube upper end is provided with opening and mouth plug, and lower end is provided with water valve.Conveniently can inject and release copper/saturated copper sulphate solution.
Described sample couplings is degreasing sponge after copper/saturated copper sulphate soaks or adds the dough that copper/saturated copper sulphate solution is kneaded into.Described receiving electrode is red copper material, can form Cu-CuSO with saturated copper-bath in Sheng liquid contact tube and sample couplings
4non-polarizing electrode, eliminates and swashs film sound.
The each level in upper end of described powered stent and measurement support is provided with two screw rod interfaces, lower end is respectively provided with a screw rod interface, the screw rod interface horizontal level one_to_one corresponding that powered stent and measurement support are provided with, three insulation blanket studs measure powered stent on specimen holder respectively with two and the corresponding screw rod interface measured on support connects, and the insulation blanket stud being positioned at lower end is provided with scale.
Described base is provided with a groove, and this groove notch is corresponding with the water valve valve port position of top.The copper-bath flowed out in experimentation can be collected, avoid contaminated environment.
Described measurement for a pair in specimen holder is slidably connected with slide rail below at least one measurement specimen holder.During measurement, conveniently moving is installed.
Feature of the present invention is:
1., in conjunction with the advantage of two pole devices and four pole devices, the potential electrode of two pole devices is separated the impact of elimination " overpotential " with transmitting electrode;
2. inject copper/saturated copper sulphate solution and potential electrode two sides formation Cu-CuSO by containing liquid contact tube 6
4plane of polarization is not eliminated and is swashed electrical effect;
3. utilize a fixed plastics bar can freely adjust coordinate at zero point, read the length of tested sample;
4. this device can be used in the various electrical parameter measurement such as rock or specimen of ore resistivity, polarizability, charge rate, complex resistivity, phase place.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the plan structure schematic diagram of the embodiment of the present invention 1.
Fig. 3 is measurement mechanism and the instrumentation plan of the embodiment of the present invention 1.
Embodiment
The present invention is by the following examples can the invention will be further described, but scope of the present invention is not limited to following embodiment.
Embodiment 1
1. the assembling of rock or the electrical measurement specimen holder 1 of ore
As shown in Figure 1, 2: rock or the electrical measurement specimen holder 1 of ore comprise base 3, powered stent 4, measure support 5, contain liquid contact tube 6, transmitting electrode 7 and receiving electrode 8.
Transmitting electrode 7 and receiving electrode 8 be placed in respectively powered stent 4 and measure on the groove of support 5 correspondence, and the electrode contact bar of transmitting electrode 7 and receiving electrode 8 passes respectively from aperture the powered stent 4 of correspondence and measurement support 5; In electrode groove, put into envelope line coil respectively, then Sheng liquid contact tube 6 is placed in powered stent 4 and powers in extreme groove with measurement support 5, fixedly make it sealing with surrounding four screws; Finally place it on base 3, and be screwed reinforcing.Check each contact portion sealing, especially at electrode, contain between liquid contact tube and support.Then close and contain liquid contact tube 6 lower end water valve, inject copper/saturated copper sulphate solution at upper end open place and make not interspace in its whole Sheng liquid contact tube 6 right cylinder, then use stopper jam-pack.Rock or the electrical measurement specimen holder surface of ore is dried with the cloth of drying or paper.
2. the assembling of rock or the electrical measurement mechanism of ore
As shown in Fig. 3: rock or the electrical measurement mechanism of specimen of ore it comprise a pair rock or the electrical measurement specimen holder 1 of ore, three insulation blanket stud 2(wherein one with scale), insulation blanket stud is plastics standing screw, sample couplings 9, tested sample 10, surveying instrument 11.
According to assembling a pair rock or the electrical measurement specimen holder 1 of ore are described above, then respectively measure the support other end put into sample couplings (copper/saturated copper sulphate soak after degreasing sponge or the saturated dough adding copper/saturated copper sulphate solution and be kneaded into); As shown in Figure 3 the rock after cutting or specimen of ore are measured specimen holder 1 by three insulation blanket studs 2 and a pair to fix, and coordinate screw rod zeromark will be had to adjust to tested sample 10 1 end position.Read and record the length of sample, select shielding line to settle to be connected to as shown in Figure 3 on surveying instrument, two transmitting electrodes 7 to be held with A, the B on surveying instrument 11 by shielding line and are connected, and two receiving electrodes 8 to be held with M, the N on surveying instrument 11 by shielding line and are connected.Then the corresponding parameter record that need to measure is measured.
Measure for a pair described in other embodiment in specimen holder 1 and be slidably connected with slide rail below at least one measurement specimen holder.Mainly consider, when measuring, conveniently moving is installed.
3. rock or specimen of ore electrically measure operation steps
1. rock or specimen of ore cutting.Adopt makita 4100NH that ground or drilling rock or specimen of ore are cut into regular body, be generally right cylinder or rectangular parallelepiped, must ensure that square section is smooth and complete.
2. rock or specimen of ore soak and dry.In order to the occurrence status in the nature of simulated samples as far as possible, first soak tested rock or specimen of ore more than 12 hours, then dry 1 ~ 3 hour, sample dry tack free must be ensured.
3. rock or specimen of ore are numbered and are measured.Each sample is numbered, and measures and record its cross-sectional area and length.
4. copper/saturated copper sulphate solution and the making of sample couplings is configured.Copper/saturated copper sulphate solution all will adopt in Sheng liquid contact tube and sample couplings.Contain one glass of distilled water with container, then add copper sulfate crystal and constantly stir until saturated (bottom also has a small amount of copper sulfate crystal).
5. rock or the electrical measurement mechanism of ore assembling (see above illustrate).Tested sample is settled on measurement mechanism, and is connected on the corresponding binding post of surveying instrument with shielding line.
6. device inspection.Whether the drying of check measurement device, and whether wiring is correct.
7. measure and record.Adjusting instrument, adopts corresponding instrument measure and record correlation parameter and data.
Claims (6)
1. an electrical measurement mechanism for rock or specimen of ore, it comprises two Cu-CuSO
4non-polarizing electrode, insulation blanket stud (2) and surveying instrument (11), is characterized in that described Cu-CuSO
4the structure of non-polarizing electrode is for measuring specimen holder (1), and measure between specimen holder (1) for two and connected by least three insulation blanket studs (2), wherein at least one is provided with scale, measures the receiving electrode end position of specimen holder (1) in opposite directions for two, during measurement, two receiving electrode ends measuring specimen holder (1) are fixedly connected with tested sample (10) respectively by sample couplings (9), described measurement specimen holder (1) comprises base (3), powered stent (4) and measurement support (5), described powered stent (4) and measurement support (5) middle part correspondence position are provided with groove, transmitting electrode (7) is connected with powered stent (4) by groove, the electrode contact bar of transmitting electrode (7) passes from the aperture powered stent (4), receiving electrode (8) is connected with measurement support (5) by another groove, the electrode contact bar of receiving electrode (8) passes from the aperture measured support (5), contain liquid contact tube (6) two ends and the encapsulated coil at two ends and the transmitting electrode (7) on both sides and powered stent (4) and receiving electrode (8) and measure between support (5) and be tightly connected, described powered stent (4) is connected with the both sides of base (3) respectively with measurement support (5).
2. the electrical measurement mechanism of a kind of rock according to claim 1 or specimen of ore, it is characterized in that filling with copper/saturated copper sulphate solution in described Sheng liquid contact tube (6), contain in liquid contact tube (6) cylinder after closing the opening containing liquid contact tube (6) and do not interspace, described Sheng liquid contact tube (6) upper end is provided with opening and mouth plug, and lower end is provided with water valve.
3. the electrical measurement mechanism of a kind of rock according to claim 1 or specimen of ore, it is characterized in that described sample couplings (9) for copper/saturated copper sulphate soak after degreasing sponge or add the dough that copper/saturated copper sulphate solution is kneaded into.
4. the electrical measurement mechanism of a kind of rock according to claim 1 or specimen of ore, it is characterized in that each level in upper end of described powered stent (4) and measurement support (5) is provided with two screw rod interfaces, lower end is respectively provided with a screw rod interface, the screw rod interface horizontal level one_to_one corresponding that powered stent (4) and measurement support (5) are provided with, three insulation blanket studs (2) measure the powered stent (4) on specimen holder (1) respectively with two and the corresponding screw rod interface measured on support (5) connects, and the insulation blanket stud (2) being positioned at lower end is provided with scale.
5. the electrical measurement mechanism of a kind of rock according to claim 2 or specimen of ore, is characterized in that described base (3) is provided with a groove, and this groove notch is corresponding with the water valve valve port position of top.
6. the electrical measurement mechanism of a kind of rock according to claim 1 or specimen of ore, is characterized in that being slidably connected with slide rail below at least one measurement specimen holder in described two measurements specimen holder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499961.2A CN102944799B (en) | 2012-11-30 | 2012-11-30 | Device for measuring electrical property of rock/ore specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499961.2A CN102944799B (en) | 2012-11-30 | 2012-11-30 | Device for measuring electrical property of rock/ore specimen |
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| Publication Number | Publication Date |
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| CN102944799A CN102944799A (en) | 2013-02-27 |
| CN102944799B true CN102944799B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210499961.2A Expired - Fee Related CN102944799B (en) | 2012-11-30 | 2012-11-30 | Device for measuring electrical property of rock/ore specimen |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181394B (en) * | 2013-05-23 | 2017-04-05 | 中国石油天然气集团公司 | A kind of rock and ore sample method of measuring resistivity |
| CN105738954B (en) * | 2014-12-11 | 2017-11-03 | 安徽惠洲地质安全研究院股份有限公司 | One kind need not embedded and direct-coupled unpolarizable electrode device |
| CN106646620B (en) * | 2016-12-27 | 2019-12-24 | 山东大学 | Three-direction controllable resistivity method experiment electrode device and method |
| CN107991347A (en) * | 2017-11-23 | 2018-05-04 | 广东惠利普路桥信息工程有限公司 | A kind of rock and ore electrical detection device |
| CN110132821A (en) * | 2019-06-19 | 2019-08-16 | 山东大学 | A kind of rock mass complex resistivity signal measurement apparatus, structure and method |
| CN114296508B (en) * | 2021-12-30 | 2024-04-23 | 长沙巨杉智能科技有限公司 | Rock ore specimen impedance measurement signal source generating device |
Citations (4)
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|---|---|---|---|---|
| US7084616B1 (en) * | 1997-03-05 | 2006-08-01 | Kommanditgesellschaft Ritz Messwandler Gmbh & Co. | Method and device for measuring an electrical voltage |
| CN101881837A (en) * | 2010-06-09 | 2010-11-10 | 中国地质大学（武汉） | Double-frequency induced polarization method water tank physical simulation experiment device |
| CN202383201U (en) * | 2011-12-22 | 2012-08-15 | 中国地质科学院地球物理地球化学勘查研究所 | Electrical measuring instrument for rock ore |
| CN203164316U (en) * | 2012-11-30 | 2013-08-28 | 东华理工大学 | Rock and ore specimen electrical measuring device |
-
2012
- 2012-11-30 CN CN201210499961.2A patent/CN102944799B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7084616B1 (en) * | 1997-03-05 | 2006-08-01 | Kommanditgesellschaft Ritz Messwandler Gmbh & Co. | Method and device for measuring an electrical voltage |
| CN101881837A (en) * | 2010-06-09 | 2010-11-10 | 中国地质大学（武汉） | Double-frequency induced polarization method water tank physical simulation experiment device |
| CN202383201U (en) * | 2011-12-22 | 2012-08-15 | 中国地质科学院地球物理地球化学勘查研究所 | Electrical measuring instrument for rock ore |
| CN203164316U (en) * | 2012-11-30 | 2013-08-28 | 东华理工大学 | Rock and ore specimen electrical measuring device |
Non-Patent Citations (2)
| Title |
|---|
| Numerical simulation of electrode process in Cu/CuSO4 + H2SO4 system;B.Ya. Pirogov et al;《Electrochimica Acta》;20041231;3283–3292 * |
| 电性源发射端接地电阻的理论计算及影响因素分析;刘俊峰等;《工程地球物理学报》;20120731;第9卷(第4期);第380-384页 * |
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