A high-density depth sounding device

Abstract

This invention discloses a high-density depth sounding device, relating to the field of measurement. The device includes electrodes and cables. The electrodes include at least one set of power supply electrodes and their corresponding measuring electrodes. A first, second, and third power supply electrode are configured as a set of power supply electrodes. A current focusing effect is formed between the first, second, and third power supply electrodes. This current focusing effect enhances the electric field generated by the power supply electrodes, increases the current density, reduces the device's susceptibility to external environmental influences, improves the signal-to-noise ratio and anti-interference capability, and ensures the accuracy and reliability of the measurement results. The cables include power supply cables and measuring cables. Separating the power supply cables from the measuring cables enhances measurement flexibility and makes it easier to meet the high-precision measurement needs during construction.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of measurement, in particular to a high-density sounding device. BACKGROUND

[0002] With the rapid development of China's economy, road, bridge, tunnel and dam infrastructure projects have also been widely developed. In the construction of these infrastructure projects, the geological conditions of the construction area need to be understood in detail to make a detailed assessment of the subsequent construction work. Electrical prospecting is an effective method for measuring geological conditions. This method is based on the electrical difference of geological bodies as the basis for detection, which can detect the position and distribution range of geological bodies. The high-density electrical method is the most commonly used detection method. The existing high-density electrical method sets the power supply electrode and the measurement electrode used for detection on the same cable. The electrical properties under the power supply electrode are determined by the potential difference between multiple measurement electrodes, so as to further confirm the sounding curve. The position of the power supply electrode and the measurement electrode is changed by moving the cable or lengthening the cable, so as to determine the three-dimensional geological conditions at the bottom.

[0003] In the prior art, two power supply electrodes A and B are generally provided. A and B can be used as two separate power supply electrodes, or they can be used as a whole. One electrode has a higher power supply voltage, and the other electrode has a lower power supply voltage. However, the electric field generated by these two methods is relatively weak, and the current density is low. The entire electric field is easily affected by external environment and other interference factors, resulting in a large error in the final measurement result. Moreover, since only one cable is used in the sounding process, the flexibility of the measurement is poor, and it is difficult to meet the demand for high-precision measurement in the construction process. SUMMARY

[0004] The purpose of the present application is to provide a high-density sounding device. The entire device is less affected by the external environment, improves the signal-to-noise ratio and anti-interference ability, ensures the accuracy and reliability of the measurement result, enhances the flexibility of the measurement, and more easily meets the demand for high-precision measurement in the construction process.

[0005] To solve the above technical problems, the present application provides a high-density sounding device, which comprises electrodes and a cable, wherein the cable comprises a power supply cable and a measurement cable.

[0006] The electrodes comprise at least one group of power supply electrodes and their corresponding n pairs of measurement electrodes, wherein n is a positive integer.

[0007] The power supply electrodes of the group include a first power supply electrode, a second power supply electrode and a third power supply electrode, the first power supply electrode and the third power supply electrode are arranged on the power supply cable, and the power supply voltage of the first power supply electrode and the power supply voltage of the third power supply electrode are both greater than the power supply voltage of the second power supply electrode;

[0008] n pairs of the measurement electrodes are arranged on the measurement cable;

[0009] The second power supply electrode is arranged on the power supply cable or the measurement cable, the position of the second power supply electrode is the intersection position of the measurement cable and the neutral line, and the neutral line is the neutral line of the first power supply electrode and the third power supply electrode.

[0010] Preferably, the power supply electrodes are multiple groups, and the second power supply electrodes in each group of the power supply electrodes are arranged in a rectangular array.

[0011] Preferably, the power supply electrodes are multiple groups, and the second power supply electrodes in each group of the power supply electrodes are arranged in a circular array.

[0012] Preferably, the measurement electrodes are non-polarization electrodes.

[0013] Preferably, the measurement cable and the power supply cable are overlapped.

[0014] Preferably, the first power supply electrode and the third power supply electrode are symmetrical about the second power supply electrode.

[0015] Preferably, the power supply voltages of the first power supply electrode and the third power supply electrode are equal.

[0016] The application provides a high-density depth measuring device, which includes electrodes and a cable. The electrodes include at least one group of power supply electrodes and corresponding measurement electrodes. The first power supply electrode, the second power supply electrode and the third power supply electrode are arranged as a group of power supply electrodes. The first power supply electrode, the second power supply electrode and the third power supply electrode form a current focusing effect, which can enhance the electric field generated by the power supply electrode, improve the current density, make the whole device less affected by the external environment, improve the signal-to-noise ratio and anti-interference ability, and ensure the accuracy and reliability of the measurement results. The cable includes a power supply cable and a measurement cable. The power supply cable and the measurement cable are separated, which enhances the flexibility of measurement and makes it easier to meet the demand for high-precision measurement in the construction process. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the prior art and embodiments. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 A structural schematic diagram of a high-density sounding device provided by the present application;

[0019] Figure 2 A structural schematic diagram of another high-density sounding device provided by the present application;

[0020] Figure 3 A structural schematic diagram of another high-density sounding device provided by the present application;

[0021] Figure 4 A schematic diagram of current focusing effect formed by a high-density sounding device provided by the present application. DETAILED DESCRIPTION

[0022] The core of the present application is to provide a high-density sounding device, which is less affected by external environment, improves signal-to-noise ratio and anti-interference ability, ensures accuracy and reliability of measurement results, and enhances flexibility of measurement, which is more likely to meet the demand of high-precision measurement in construction process.

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0024] Please refer to Figure 1 , Figure 1 A structural schematic diagram of a high-density sounding device provided by the present application; a high-density sounding device, comprising an electrode and a cable, the cable comprising a power supply cable 11 and a measurement cable 12;

[0025] The electrode comprises at least one group of power supply electrodes and n pairs of corresponding measurement electrodes, n being a positive integer;

[0026] The group of power supply electrodes comprises a first power supply electrode A1, a second power supply electrode B and a third power supply electrode A2, the first power supply electrode A1 and the third power supply electrode A2 are arranged on the power supply cable 11, and the power supply voltage of the first power supply electrode A1 and the power supply voltage of the third power supply electrode A2 are both greater than the power supply voltage of the second power supply electrode B;

[0027] n pairs of measuring electrodes are arranged on the measuring cable 12;

[0028] The second power supply electrode B is arranged on the power supply cable 11 or the measuring cable 12, and the position of the second power supply electrode B is the intersection position of the measuring cable 12 and the middle line of the first power supply electrode A1 and the third power supply electrode A2.

[0029] In practical applications, the depth measurement process needs to be realized by the power supply electrode and the measuring electrode, and different power supply electrodes have corresponding measuring electrodes, Figure 1 M and N shown in the middle are a pair of measuring electrodes, the power supply electrode in the high-density depth measurement device provided by the application includes the first power supply electrode A1, the second power supply electrode B and the third power supply electrode A2, the first power supply electrode A1, the second power supply electrode B and the third power supply electrode A2 are the power supply electrode as a group, and the power supply voltage of the first power supply electrode A1 and the power supply voltage of the third power supply electrode A2 are both greater than the power supply voltage of the second power supply electrode B, because the power supply voltage of the second power supply electrode B is small, the direction of the electric field generated by the first power supply electrode A1 and the third power supply electrode A2 is opposite to the direction of the electric field generated by the second power supply electrode B, the current lines flow from the first power supply electrode A1 and the third power supply electrode A2 to the second power supply electrode B, the current density is greater when it is closer to the second power supply electrode B, the current density is greater, the electric field signal is stronger, so as to form the current focusing effect and enhance the electric field around the second power supply electrode B, please refer to Figure 4 , Figure 4 The current focusing effect formed by the high-density depth measurement device provided by the application is shown in the schematic diagram; when power supply, the current flows out from the first power supply electrode A1 and the third power supply electrode A2, flows to the second power supply electrode B after passing through the geological body below, the measuring electrode takes the second power supply electrode B as the center, measures the electric potential at different distances from the second power supply electrode B by gradually moving away from the second power supply electrode B, and the electric potential at different distances from the second power supply electrode B measured is used to represent the electric field distribution at different depths below the second power supply electrode B, so as to obtain the electrical properties of the second power supply electrode B, so as to further confirm the depth curve for subsequent further analysis of the geological conditions by subsequent workers.

[0030] It should be noted that the electrical property of the second power supply electrode B can be obtained by measuring the potential signal detected by the measuring electrode, or the electrical property of the second power supply electrode B can be obtained by measuring the current signal and resistance signal and other electrical signals detected by the measuring electrode to represent the electrical field distribution at different depths below the second power supply electrode B. The electrical property of the second power supply electrode B can also be obtained, and a plurality of electrical signals can be measured and comprehensively analyzed to obtain the electrical property of the second power supply electrode B. The specific implementation manner of how to obtain the electrical property of the second power supply electrode B by the measuring electrode and the corresponding depth measurement curve is not particularly limited herein. The electrical property at the same depth can be measured for different power supply electrodes, or the electrical property at different depths can be measured. The change step of the depth during the electrical property confirmation process is not excessively limited. The depth measured by the power supply electrode and the interval between different depths are not particularly limited herein, and can be adjusted according to the actual measurement situation.

[0031] Considering that the measuring electrode will also cause certain interference to the electrical field generated by the power supply electrode, the cable is divided into a power supply cable 11 and a measuring cable 12. The first power supply electrode A1 and the third power supply electrode A2 are arranged on the power supply cable 11, and the measuring electrode is arranged on the measuring cable 12. The second power supply electrode B is the intersection of the power supply cable 11 and the measuring cable 12, and can be arranged on the power supply cable 11 or the measuring cable 12. Generally, the power supply voltages of the first power supply electrode A1 and the third power supply electrode A2 are very small and almost equal, so as to ensure that the electrical field intensity formed by the power supply electrodes is stable, and it is basically ensured that the intersection of the current lines formed by the first power supply electrode A1 and the third power supply electrode A2 is at the midpoint of the two, and the second power supply electrode B is located on the midline of the first power supply electrode A1 and the third power supply electrode A2.

[0032] Specifically, the separation of the power supply cable 11 and the measurement cable 12 can realize the measurement of the electrical properties of the second power supply electrode B at different angles by adjusting the included angle between the power supply cable 11 and the measurement cable 12, or multiple measurement cables 12 can be arranged for the same second power supply electrode B to realize the measurement of the electrical properties of the second power supply electrode B in all directions, realize the precise scanning of the geological conditions in a large range and multiple angles, meet the precise scanning of the target body, and the flexible measurement mode can be selected according to the specific situation to reduce the waste of manpower and improve the work efficiency. The separation of the power supply cable 11 and the measurement cable 12 can further ensure that the measurement depth under the second power supply electrode B can be further increased, which can be realized by separately growing the measurement cable 12 or translating the measurement cable 12. The specific arrangement of the power supply cable 11 and the measurement cable 12, the type, number and length of the cable, etc. are not particularly limited in the present application, and the cable can be a large wire cable. Generally, the measurement process is based on the equipotential surface of the second power supply electrode B to represent the electrical field distribution at different depths under the second power supply electrode B by measuring the electrical potential at different distances from the second power supply electrode B. Considering the shape of the equipotential line of the second power supply electrode B, the power supply cable 11 and the measurement cable 12 can be arranged vertically.

[0033] In actual application, a pair of measurement electrodes can be composed of two adjacent electrodes or two electrodes separated by one electrode. Generally, the distance between the two electrodes in a pair of measurement electrodes is as small as possible to ensure the accuracy of the measurement results. The spacing of a pair of measurement electrodes and the specific measurement process are not particularly limited in the present application.

[0034] It can be understood that many electrodes are arranged on the cable. At the beginning of the depth measurement process, an electrode is determined as the second power supply electrode B, and the power supply cable 11 and the measurement cable 12 are determined with the second power supply electrode B as the intersection. Two electrodes on the power supply cable 11 are determined as the first power supply electrode A1 and the third power supply electrode A2 according to the positional relationship, and the electrodes on the measurement cable 12 can all be measurement electrodes. The specific selection depends on the depth requirement to be measured. Therefore, the selection of the power supply cable 11 and the measurement cable 12 is not fixed. One cable can be used as a power supply cable 11 or a measurement cable 12. The power supply cable 11 in one measurement process can also be used as a measurement cable 12 in other measurement processes. The material, size and length of the cable are not particularly limited in the present application.

[0035] It can be understood that the selection of the power supply electrode and the measurement electrode is not fixed, one electrode can be used as a power supply electrode and a measurement electrode, a power supply electrode in one measurement process, and a measurement electrode in other measurement processes. In actual application, the measurement electrode can be a pair of different electrodes or a pair of electrodes. When the measurement electrode is a pair of different electrodes, the electrical property of the second power supply electrode B can be obtained directly according to the measurement results of the different pairs of measurement electrodes. When the measurement electrode is a pair of electrodes, after obtaining a measurement result, the potential of the second power supply electrode B at different depths can be measured by translating the pair of measurement electrodes or the corresponding measurement cable 12, and the electrical property of the second power supply electrode B can also be obtained. Specifically, the material, size and shape of the electrode are not particularly limited in the present application.

[0036] It can be understood that when the power supply electrode is multiple groups, the electrical properties of multiple second power supply electrodes B are measured to obtain the three-dimensional geological conditions of the corresponding bottom. The present application separates the power supply cable 11 and the measurement cable 12 to realize the detection of the geological conditions of the bottom of any shape, and the measurement process is more flexible. More data can be obtained to meet the accuracy requirements of measurement. The arrangement shape and arrangement area size of the electrode and the cable are not particularly limited in the present application, and can be flexibly changed according to the geological area to be detected.

[0037] The present application provides a high-density sounding device, which comprises an electrode and a cable. The electrode comprises at least one group of power supply electrodes and corresponding measurement electrodes. The first power supply electrode A1, the second power supply electrode B and the third power supply electrode A2 are arranged as a group of power supply electrodes. The current focusing effect is formed between the first power supply electrode A1, the second power supply electrode B and the third power supply electrode A2. The current focusing effect can enhance the electric field generated by the power supply electrode, improve the current density, make the whole device less affected by the external environment, improve the signal-to-noise ratio and anti-interference ability, and ensure the accuracy and reliability of the measurement result. The cable comprises a power supply cable 11 and a measurement cable 12. The power supply cable 11 and the measurement cable 12 are separated to enhance the flexibility of measurement and more easily meet the demand for high-precision measurement in the construction process.

[0038] On the basis of the above embodiment,

[0039] As a preferred embodiment, the power supply electrode is multiple groups, and the second power supply electrode B in each group of power supply electrodes is arranged in a rectangular array.

[0040] In practical applications, not only the electrical properties of a single point need to be analyzed, multiple groups of power supply electrodes can be set, the second power supply electrodes B in each group of power supply electrodes are arranged in a rectangular array, the electrical properties under each second power supply electrode B can be obtained, and thus the geological conditions of a cube under the ground can be obtained. The measurement process of the electrical properties of the second power supply electrodes B in the multiple groups of power supply electrodes is a repeated process of the measurement process of a single second power supply electrode B in the above embodiment.

[0041] Specifically, the second power supply electrodes B in each group of power supply electrodes are arranged in a rectangular array, multiple power supply cables 11 and measurement cables 12 need to be set, and the specific arrangement shape and arrangement area size are not particularly limited in the present application and can be flexibly changed according to the geological area to be detected.

[0042] For example, taking a rectangular measurement area as an example, please refer to Figure 2 , Figure 2 Another structure diagram of a high-density sounding device provided by the present application is shown in the figure; multiple power supply cables 11 are arranged in parallel at the same interval, multiple measurement cables 12 are arranged in parallel at the same interval, and there is an intersection point between each measurement cable 12 and each power supply cable 11, and these intersection points can all be used as second power supply electrodes B. When one of the intersection points is selected as a second power supply electrode B as shown in the figure, the intersection points of the corresponding power supply cable 11 and the measurement cables 12 on both sides of the point can be used as first power supply electrodes A1 and third power supply electrodes A2, and the intersection points of the corresponding measurement cable 12 and other power supply cables 11 can be used as measurement electrodes. It can be understood that when a certain intersection point is selected as a second power supply electrode B, the electrodes on the corresponding power supply cable 11 can all be used as first power supply electrodes A1 and third power supply electrodes A2, and only these two electrodes need to be substantially symmetrical about the intersection point, and the electrodes on the corresponding measurement cable 12 can all be used as measurement electrodes. The specific selection of the first power supply electrodes A1 and the third power supply electrodes A2 is not particularly limited in the present application.

[0043] In practical applications, multiple cables can be laid at the same time, and then the measurement of multiple groups of power supply electrodes can be performed, the large-scale and multi-angle precision scanning of the geological conditions can be realized, the manual waste can be reduced, and the work efficiency can be improved. The more dense the multiple groups of power supply electrodes are, the more accurate the final measurement result is. The density of the power supply electrodes and the number of groups are not particularly limited in the present application.

[0044] When the power supply electrodes are multiple groups, the second power supply electrodes B in each group of power supply electrodes can be arranged in a rectangular array, the geological conditions under a rectangle can be detected, the geological conditions of a three-dimensional area can be detected by the multiple groups of power supply electrodes, the detection result of the geological conditions is more comprehensive, the detection range of the entire device is larger, the applicable environment is wider, and the measurement accuracy of the entire device is improved.

[0045] As a preferred embodiment, the power supply electrodes are in multiple groups, and the second power supply electrodes B in each group of power supply electrodes are arranged in a circular array.

[0046] In practical applications, not only the electrical properties of a single point need to be analyzed, multiple groups of power supply electrodes can be set, and the second power supply electrodes B in each group of power supply electrodes are arranged in a circular array, so that the electrical properties under each second power supply electrode B can be obtained, thereby obtaining the geological conditions of a cylindrical body underground. The measurement process of the electrical properties of the second power supply electrodes B in multiple groups of power supply electrodes is a repeated process of the measurement process of a single second power supply electrode B in the above embodiment.

[0047] Specifically, the second power supply electrodes B in each group of power supply electrodes are arranged in a circular array, which requires multiple cables. The specific arrangement shape and arrangement area size are not particularly limited in the present application and can be flexibly changed according to the geological area to be detected.

[0048] Taking a measurement area as a regular circle as an example, please refer to Figure 3 , Figure 3 Another structure diagram of a high-density sounding device provided by the present application is shown in the figure, and the sounding points marked in the figure can all be used as second power supply electrodes B. The sounding curves marked in the figure represent all the sounding curves obtained after each sounding point is used as a second power supply electrode B for measurement, which can represent the geological conditions of the cylindrical body. Multiple cables are arranged radially from the same endpoint, and the included angles between adjacent two cables are the same. Multiple concentric circles are drawn with the endpoint as the center, and the intersection points of these concentric circles and the cables can all be used as second power supply electrodes B. When three adjacent cables are determined as shown in the figure, the electrodes at the same position on the two side cables are used as first power supply electrodes A1 and third power supply electrodes A2. The position where the fan-shaped arc length between the first power supply electrodes A1 and the third power supply electrodes A2 intersects with the middle cable is the second power supply electrode B, and the electrodes on the middle cable can all be used as measurement electrodes. At this time, the two side cables are called power supply cables 11, and the middle cable is called a measurement cable 12. For the measurement electrodes, the specific selection of the first power supply electrodes A1 and the third power supply electrodes A2 is not particularly limited in the present application.

[0049] In practical applications, multiple cables can be laid at the same time, and then multiple groups of power supply electrodes can be measured, so as to realize large-scale and multi-angle precision scanning of the geological conditions, reduce the waste of manpower, and improve the work efficiency. The more dense the multiple groups of power supply electrodes are, the more accurate the final measurement results will be. The density of the power supply electrodes and the number of groups are not particularly limited in the present application.

[0050] When the power supply electrodes are multiple groups, the second power supply electrodes B in each group of power supply electrodes can be arranged in a circular array to detect the geological conditions below a circle, and multiple groups of power supply electrodes can detect the geological conditions of a three-dimensional area, so that the detection results of the geological conditions are more comprehensive, the detection range of the entire device is larger, the applicable environment is wider, and the measurement accuracy of the entire device is improved.

[0051] As a preferred embodiment, the measurement electrode is a non-polarization electrode.

[0052] Considering that when the material of the electrode is a polar material, the electrode will charge and discharge during the power-on measurement, which will interfere with the electric field generated by the power supply electrode and affect the accuracy of the detection results, a non-polarization electrode can be used as a measurement electrode. When the measurement electrode is a non-polarization electrode, the measurement value for representing the electric field distribution at different depths below the second power supply electrode B can be the corresponding measurement polarization rate Ms, half-life Th, attenuation degree D, comprehensive induced polarization parameter Zp, and deviation R, etc. parameters, further realizing the measurement of multiple parameters.

[0053] It can be understood that the power supply electrode can also use a non-polarization electrode to further ensure the accuracy of the measurement results. The specific electrodes and the number of electrodes that use non-polarization electrodes are not particularly limited in this application.

[0054] The measurement electrode uses a non-polarization electrode to reduce errors caused by the material of the electrode itself on the measurement results, making the measurement results more accurate, ensuring the reliability of the measurement results, improving the signal-to-noise ratio of the measurement data, improving the accuracy of the depth measurement process, improving the measurement accuracy and anti-interference ability of the entire device. At the same time, the non-polarization electrode also includes multiple parameters, which can further represent the electric field distribution at different depths below the second power supply electrode B, and improve the accuracy of the measurement results.

[0055] As a preferred embodiment, the measurement cable 12 and the power supply cable 11 are overlapped.

[0056] Considering that the measurement cable 12 and the power supply cable 11 intersect, when the measurement cable 12 and the power supply cable 11 intersect, the measurement cable 12 and the power supply cable 11 are overlapped, which can ensure that the intersection of the measurement cable 12 and the power supply cable 11 and the second power supply electrode B coincide as much as possible, further ensuring the accuracy of the measurement results. At the same time, the overlapping method can avoid the position deviation of the cable caused by external factors.

[0057] The overlapping of the measuring cable 12 and the power supply cable 11 can make the intersection of the measuring cable 12 and the power supply cable 11 substantially coincide with the second power supply electrode B, so as to make the measurement result more accurate, ensure the reliability of the measurement result, improve the accuracy of the depth measurement process, and improve the measurement accuracy and anti-interference ability of the whole device.

[0058] As a preferred embodiment, the first power supply electrode A1 and the third power supply electrode A2 are symmetrical about the second power supply electrode B.

[0059] It can be understood that when the first power supply electrode A1 and the third power supply electrode A2 are symmetrical about the second power supply electrode B, the three are on the same line, and the voltage of the first power supply electrode A1 and the third power supply electrode A2, the distance between the second power supply electrode B, the potential direction, etc. are symmetrical about the second power supply electrode B. At this time, the current focusing effect of the group of power supply electrodes is better, so that the second power supply electrode B can fully utilize the electric field formed by the first power supply electrode A1 and the third power supply electrode A2, improve the signal-to-noise ratio of the measurement data, and further ensure the accuracy of the measurement result.

[0060] When the first power supply electrode A1 and the third power supply electrode A2 are symmetrical about the second power supply electrode B, the current focusing effect is better, the measurement result is more accurate, the signal-to-noise ratio of the measurement data is improved, the reliability of the measurement result is ensured, the accuracy of the depth measurement process is improved, and the measurement accuracy and anti-interference ability of the whole device are improved.

[0061] As a preferred embodiment, the power supply voltage of the first power supply electrode A1 and the third power supply electrode A2 is equal.

[0062] Specifically, when the power supply voltage of the first power supply electrode A1 and the third power supply electrode A2 is completely equal, the electric field intensity formed by the first power supply electrode A1 and the third power supply electrode A2 is the same, etc. At this time, the current focusing effect of the group of power supply electrodes is better, so that the second power supply electrode B can fully utilize the electric field formed by the first power supply electrode A1 and the third power supply electrode A2, improve the signal-to-noise ratio of the measurement data, and further ensure the accuracy of the measurement result. It can be understood that when the first power supply electrode A1 and the third power supply electrode A2 are symmetrical about the second power supply electrode B and the power supply voltage of the first power supply electrode A1 and the third power supply electrode A2 is completely equal, the current focusing effect of the group of power supply electrodes is the best.

[0063] When the power supply voltage of the first power supply electrode A1 and the third power supply electrode A2 is equal, the current focusing effect is better, the measurement result is more accurate, the signal-to-noise ratio of the measurement data is improved, the reliability of the measurement result is ensured, the accuracy of the depth measurement process is improved, and the measurement accuracy and anti-interference ability of the whole device are improved.

[0064] It is also to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components, and the term "an element" can include comparable reference to a plurality of elements. Additionally, the term "or" as used herein in the context of a list of items prefaced by "at least one of' means any single one of the items in the list and any combination of two or more of the items in the list. Further, the term "comprises" or "comprising" as used herein is intended to have a broad meaning in its conventional sense, specifically to mean that the item or items listed following the term are included, but not to the exclusion of any additional item or items. Additionally, the term "comprises" or "comprising" as used herein is intended to have a broad meaning in its conventional sense, specifically to mean that the item or items listed following the term are included, but not to the exclusion of any additional item or items. Additionally, the term "comprises" or "comprising" as used herein is intended to have a broad meaning in its conventional sense, specifically to mean that the item or items listed following the term are included, but not to the exclusion of any additional item or items. Additionally, the term "comprises" or "comprising" as used herein is intended to have a broad meaning in its conventional sense, specifically to mean that the item or items listed following the term are included, but not to the exclusion of any additional item or items.

[0065] The foregoing description of the disclosed embodiments will allow one of ordinary skill in the art to make or utilize the application. The mere fact that certain modifications can be made will not depart from the spirit of the application, and the scope of protection is therefore not to be limited to the description of the embodiments contained herein, but is to be accorded the full scope of the claims, and the entire scope of equivalents thereof, in which the application resides.

Claims

1. A high-density depth sounding device, characterized by, The electrode and the cable, the cable including a power supply cable and a measurement cable; The electrode includes at least one set of power supply electrodes and its corresponding n pairs of measurement electrodes, n being a positive integer; The set of power supply electrodes includes a first power supply electrode, a second power supply electrode and a third power supply electrode, the first power supply electrode and the third power supply electrode are arranged on the power supply cable, the power supply voltage of the first power supply electrode and the power supply voltage of the third power supply electrode are both greater than the power supply voltage of the second power supply electrode; The n pairs of measurement electrodes are arranged on the measurement cable; The second power supply electrode is arranged on the power supply cable or the measurement cable, the position of the second power supply electrode is the intersection position of the measurement cable and the center line, the center line is the center line of the first power supply electrode and the third power supply electrode; The measurement cable and the power supply cable are overlapped.

2. The high-density sub-bottom profiling apparatus of claim 1, wherein The electrode includes: The power supply electrodes are multiple groups, and the second power supply electrode in each group of the power supply electrodes is arranged in a rectangular array.

3. The high-density sub-bottom profiling apparatus of claim 1, wherein The electrode includes: The power supply electrodes are multiple groups, and the second power supply electrode in each group of the power supply electrodes is arranged in a circular array.

4. The high-density sub-bottom profiling apparatus of claim 1, wherein, The measurement electrode is a non-polarizable electrode.

5. The high-density sonar apparatus of any one of claims 1 to 4, wherein, The first power supply electrode and the third power supply electrode are symmetrical about the second power supply electrode.

6. The high-density sub-bottom profiling apparatus of claim 5, wherein, The power supply voltage of the first power supply electrode and the third power supply electrode is equal.

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