CN111856613A - Land multi-parameter physical data acquisition device - Google Patents
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Abstract
The invention provides a land multi-parameter physical data acquisition device, which comprises: the system comprises a main control device, a data acquisition device and a data sending device; the data acquisition device and the data transmission device are connected with the main control device; the main control device receives a preset measuring point coordinate position, and the land multi-parameter physical data acquisition device performs data acquisition according to the measuring point coordinate position; the main control device controls the acquisition device to complete data acquisition and controls the acquisition device to transmit the acquired data to the data transmission device; the main control device controls the data sending device to carry out remote wireless data transmission. The land multi-parameter physical data acquisition device provided by the invention can simplify the design and manufacture of the data acquisition device to a great extent, greatly reduce the production and manufacture cost of the data acquisition device, and facilitate the use and maintenance of the data acquisition device in ground production with high degree of automation.
Description
Technical Field
The invention relates to the technical field of geophysical exploration, in particular to a land multi-parameter physical data acquisition device.
Background
Geophysical prospecting is also a science that uses differences in the physical properties of rocks (minerals) in the crust of the earth to study geological formations or to detect underground minerals. The testing instrument for obtaining the physical parameters of the rocks (minerals) in the crust is commonly called as a geophysical instrument, which comprehensively uses corresponding theories, methods and technologies of multiple subjects such as physics, electronics, material science, system science, computer technology and the like to detect various physical information of the earth, and is a main means and tool for directly obtaining information in geophysical exploration. The geophysical exploration instrument is widely applied to the fields of geology, petroleum, metallurgy, coal, traffic, railways, hydropower, constructional engineering and the like, and is an important means for knowing the exploration of the earth, energy and resources, the detection of engineering quality, the detection of environment and the monitoring and prediction of geological disasters.
The geophysical exploration instruments are various in types, a unified classification method does not exist at present, and the geophysical exploration instruments can be generally classified according to application fields, such as an aerial geophysical instrument, a ground geophysical instrument, a well logging geophysical instrument and a marine geophysical instrument; the method mainly comprises the steps of dividing an electrical prospecting instrument, a magnetic prospecting instrument, a gravity prospecting instrument, a seismic prospecting instrument, a radioactive prospecting instrument and the like according to instrument principles; the detection objects can be divided into underground pipeline detection instruments, metal mineral detection instruments, petroleum resource detection instruments and the like.
The existing land geophysical exploration instruments are respectively developed and produced according to different method principles, and respectively comprise an electrical prospecting instrument, a magnetic prospecting instrument, a gravity prospecting instrument, a seismic prospecting instrument, a radioactive prospecting instrument and the like, which are respectively independent land geophysical prospecting instruments, single geophysical parameter measurement of different principles is carried out during construction, the research and development and manufacturing costs of various types of land geophysical prospecting instruments are high, the production efficiency is low due to multiple times of multi-principle and multi-parameter respective measurement, and the comprehensive geophysical prospecting cost is extremely high. At present, no comprehensive geophysical exploration instrument system can contain different method principles to realize synchronous simultaneous position measurement of multiple principles and multiple parameters by multiple methods on one comprehensive geophysical exploration instrument system.
Disclosure of Invention
In order to improve the efficiency of land geophysical exploration and realize the synchronous simultaneous same-position measurement of multiple principles and multiple parameters by multiple methods, the invention provides a land multi-parameter physical data acquisition device, which comprises: the system comprises a main control device, a data acquisition device and a data sending device; the data acquisition device and the data sending device are connected with the main control device; wherein,
The main control device receives a preset measuring point coordinate position, and the land multi-parameter physical data acquisition device performs data acquisition according to the measuring point coordinate position; the main control device controls the acquisition device to complete data acquisition and controls the acquisition device to transmit the acquired data to the data sending device; and the main control device controls the data sending device to carry out remote wireless data transmission.
Further, the data acquisition device comprises:
a three-component seismic signal sensor, a three-component induction coil type alternating magnetic field sensor, a non-polarized electrode type electric field sensor, a three-component MEMS or cold atom gravity sensor, a three-component fluxgate or cold atom type magnetic field sensor and a three-component attitude sensor;
the three-component seismic signal sensor is used for acquiring land three-component seismic data;
the three-component induction coil type alternating magnetic field sensor and the non-polarized electrode type electric field sensor are used for acquiring three-component electromagnetic data;
the three-component gravity sensor is used for acquiring three-component gravity data;
the three-component fluxgate magnetic field sensor is used for acquiring three-component magnetic force data;
the three-component attitude sensor is used for recording the inclination angle, azimuth angle and inclination of the three-component seismic signal sensor, the three-component gravity sensor and the three-component fluxgate or cold atomic magnetic field sensor.
Further, the land multi-parameter physical data acquisition device further comprises: a coaxial cable;
the coaxial cable is connected with the non-polarized electrode type electric field sensor.
Further, the land multi-parameter physical data acquisition device further comprises: a data storage module;
the data storage module is connected with the geophysical data acquisition device and used for storing the land seismic data, the electromagnetic data, the gravity data and the magnetic data.
Further, the land multi-parameter physical data acquisition device further comprises: a data transmission module;
the data transmission module is connected with the geophysical data acquisition device and used for remotely and wirelessly transmitting the acquired data to a computer of a data processing center for data processing.
Further, the land multi-parameter physical data acquisition device further comprises: a 32-bit analog-to-digital converter;
the analog-to-digital converter is respectively connected with the seismic signal sensor, the induction coil type alternating magnetic field sensor, the non-polarized electrode type electric field sensor, the gravity sensor, the fluxgate type magnetic field sensor and the attitude sensor and is used for converting the acquired analog signals into digital signals.
Further, the land multi-parameter physical data acquisition device further comprises: a display device.
Further, the land multi-parameter physical data acquisition device further comprises: a power supply device;
the power supply device is connected with the main control device, the data acquisition device, the data transmission device and the display device and used for providing power.
Further, the seismic signal sensor includes: three-component moving-coil detectors or digital detectors or acceleration detectors or fiber detectors.
Further, the land multi-parameter physical data acquisition device further comprises: an instrument ground wire;
the ground wire of the instrument is connected with the land multi-parameter physical data acquisition device.
The land multi-parameter physical data acquisition device provided by the invention can simplify the design and manufacture of the data acquisition device to a great extent, greatly reduce the production and manufacture cost of the data acquisition device, and facilitate the use and maintenance of the data acquisition device in ground production with high degree of automation.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a land multi-parameter physical data acquisition device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a land multi-parameter physical data acquisition device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an electric field sensor junction connection of a land multi-parameter physical data acquisition device according to an embodiment of the present invention;
fig. 4 is a layout diagram of electric field and magnetic field sensors of the land multi-parameter physical data acquisition device according to the embodiment of the invention.
Description of reference numerals:
1. land multi-parameter physical data acquisition devices;
2. a three-component moving-coil detector or a digital detector or an acceleration detector or an optical fiber detector;
3. a three-component MEMS or cold atom gravity sensor;
4. A three-component fluxgate or cold atomic magnetic field sensor;
5. a multi-channel 32-bit analog-to-digital converter, a memory and a computer instrument control system;
6. a data display panel and an instrument control operation keyboard;
7. a high-energy rechargeable battery comprising a wired or wireless charging module;
8. a three-component attitude sensor;
9. a high-speed wireless data transmission module;
10. a data transmitting antenna;
11. 12, 13, 14, non-polarized electrode electric field sensor;
15. 16, 17, three-component induction coil type alternating magnetic field sensor;
18. an instrument ground wire;
19. a coaxial cable connected to the electric field sensor;
20. and a coaxial cable connected with the three-component induction coil type alternating magnetic field sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Seismic exploration is one of the fastest growing geophysical methods in recent times. The principle of the method is to explore the underground geological condition by utilizing the propagation rule of artificially excited seismic waves in the formations with different elasticity. When the seismic wave excited at some place of ground is propagated to ground, it can produce reflected wave or refracted wave when it meets the stratum interface with different elasticity, and can return to ground, and can record these waves by means of special instrument, and analyze the characteristics of obtained record, such as wave propagation time and vibration form, etc. and can utilize special calculation or instrument treatment to accurately measure the depth and form of these interfaces and judge the lithology of stratum. In recent years, various seismic exploration methods using natural or artificial sources have been developed.
The existing land geophysical exploration instruments are respectively developed and produced according to different method principles, and no geophysical exploration instrument system can realize synchronous simultaneous same-position measurement of multiple principles and multiple parameters of multiple methods on one geophysical exploration instrument system by covering different method principles.
In order to solve the above problem, an embodiment of the present invention provides a land multi-parameter physical data acquisition apparatus, including: the system comprises a main control device, a data acquisition device and a data sending device; the data acquisition device and the data transmission device are connected with the main control device; wherein,
the main control device receives preset measuring point coordinate positions in real time, and places the land multi-parameter physical data acquisition device at the measuring point coordinate positions for data acquisition; the main control device controls the data acquisition device to complete data acquisition and controls the data acquisition device to transmit the acquired data to the data transmission device; the main control device controls the data sending device to carry out remote wireless data transmission.
Specifically, in the embodiment of the present invention, the main control device may be a computer control system, and the computer control system controls synchronous acquisition, storage and data transmission of all data in real time, that is, the data acquisition device and the data transmission device are connected to the main control device, and the data acquisition and the remote wireless transmission are completed by controlling the data acquisition device and the data transmission device by the main control device.
The land multi-parameter physical data acquisition device provided by the embodiment of the invention can simplify the design and manufacture of the data acquisition device to a great extent, greatly reduce the production and manufacture cost of the data acquisition device, and facilitate the use and maintenance of the data acquisition device in ground production with high degree of automation.
Based on the content of the above embodiments, as an alternative embodiment: the data acquisition device comprises:
the sensor comprises a three-component seismic signal sensor, a three-component induction coil type alternating magnetic field sensor, a non-polarized electrode type electric field sensor, a three-component gravity sensor, a three-component fluxgate magnetic field sensor and an attitude sensor;
the three-component seismic signal sensor is used for acquiring land three-component seismic data;
the three-component induction coil type alternating magnetic field sensor and the non-polarized electrode type electric field sensor are used for acquiring three-component electromagnetic data;
the three-component gravity sensor is used for acquiring three-component gravity data;
the three-component fluxgate magnetic field sensor is used for acquiring three-component magnetic force data;
the three-component attitude sensor is used for recording the inclination angle, azimuth angle and inclination of a three-component earthquake sensor, a three-component gravity sensor, a three-component induction coil type alternating magnetic field sensor and a three-component fluxgate type magnetic field sensor.
Specifically, as shown in fig. 1 and fig. 2, in the embodiment of the present invention, it is preferable that the seismic signal sensor is a three-component geophone 2, the induction coil type alternating magnetic field sensor is a three-component induction type alternating magnetic field sensor 15, 16, 17, the gravity sensor is a three-component gravity sensor or a cold atom gravity sensor 3, the fluxgate type magnetic field sensor is a three-component fluxgate type magnetic field sensor or a cold atom type magnetic field sensor 4, and the attitude sensor is a three-component attitude sensor 8. It should be noted that the land multi-parameter physical data acquisition device can measure simultaneously Three-component seismic signal of measuring land, three-component magnetic field (H) of natural field sourceX、HY、HZ) And horizontal direction electric field (E)X、EY) Signal, time domain or frequency domain controllable source three-component magnetic field (H)X、HY、HZ) And horizontal direction electric field (E)X、EY) Signal, three-component gravity field and three-component magnetic field signal.
The three-component attitude sensor 10 is a high-performance three-dimensional motion attitude measurement system based on the MEMS technology, and includes auxiliary motion sensors such as a three-axis gyroscope, a three-axis accelerometer (i.e., IMU), a three-axis electronic compass, and the like, outputs calibrated angular velocity, acceleration, magnetic orientation data, and the like through an embedded low-power-consumption ARM processor, performs motion attitude measurement through a sensor data algorithm based on quaternion, and outputs zero-drift three-dimensional attitude data expressed in quaternion, euler angle, and the like in real time. In the embodiment of the present invention, the three-component attitude sensor 8 mainly records the inclination, azimuth and inclination of the three-component geophone 2, the three-component inductive alternating magnetic field sensors 15, 16, 17, the three-component gravity sensor 3 and the three-component fluxgate magnetic field sensor 4 for performing necessary rotation processing on the recorded three-component seismic signal, the five-component electromagnetic signal, the three-component gravity signal and the three-component magnetic field signal.
The embodiment of the invention can simultaneously carry out data acquisition of ground earthquake, ground magnetotelluric and controllable source time-frequency electromagnetism, ground gravity and ground magnetic field and high-speed data remote wireless transmission work at the same measuring point, thereby realizing the comprehensive exploration and multi-parameter multi-method comprehensive evaluation of the demands of underground geological structures, oil and gas resources, metal mineral resources, underground water and engineering geology by quickly utilizing the ground earthquake, magnetotelluric and controllable source time-frequency electromagnetism, gravity and magnetic comprehensive exploration technology. And the method can detect the geological structure, the speed, the resistivity, the density and the distribution rule of magnetic minerals in a larger range below the position to be detected, can also improve the resolving power of a target geologic body, greatly reduce the interference of various artificial noises on the comprehensive geophysical measured data, improve the signal-to-noise ratio of the comprehensive geophysical measured data, provide the occurrence information of the stratum, know the spatial distribution state of the high-density or high-magnetism geologic body, and realize the comprehensive explanation and evaluation of the speed, the resistivity, the density and the magnetic parameters of the reservoir or the minerals. The measured ground three-component seismic data, five-component magnetotelluric and controllable source electromagnetic data, three-component gravity data and three-component magnetic field data are subjected to mutual constraint inversion or combined inversion, more reliable distribution and change of geological structures, rock speeds, resistivity and density and fluid types in magnetic minerals or rock pores in a certain range below a measuring point can be obtained, and the non-uniqueness of a single geophysical data processing interpretation result is greatly reduced.
Based on the content of the above embodiments, as an alternative embodiment: the land multiparameter physical data acquisition device further comprises: a coaxial cable;
the coaxial cable is connected with the electric field sensor.
Specifically, as shown in fig. 1 and fig. 2, two pairs of orthogonal electric field sensors 11, 12, 13, 14 are installed around the terrestrial multi-parameter physical data acquisition device 1, and are connected by four electric field sensor coaxial cables 20 that can horizontally extend several tens of meters from the inside of the terrestrial multi-parameter physical data acquisition device 1, the farthest end of each coaxial cable 20 is connected with at least one non-polarized electrode type electric field sensor, and the coaxial cables 20 in fig. 1 are connected with the electric field sensors 11, 12; the coaxial cable 20 in fig. 2 is connected with the electric field sensors 13, 14. Two pairs of orthogonal non-polarized electric field sensors for measuring two horizontal electric field component data E orthogonal to each other in the undergroundX、EY。
Based on the content of the above embodiments, as an alternative embodiment: the land multiparameter physical data acquisition device further comprises: a data storage module;
the data storage module is connected with the land multi-parameter physical data acquisition device and is used for storing land seismic data, electromagnetic data, gravity data and magnetic data.
Specifically, in fig. 1 and 2, each electric field sensor is connected to an electric field data acquisition device in the instrument through a coaxial cable 20, and two pairs of electric field data acquisition devices are mutually positiveCross-unpolarized electrode electric field sensor for measuring two mutually orthogonal horizontal electric field component data (E) of the subsurfaceX、EY). The three-component induction coil type alternating magnetic field sensor 17 which is arranged near the periphery of the land multi-parameter physical data acquisition device 1 and is orthogonal in pairs is connected with the data acquisition device through a coaxial cable and is used for measuring underground three-component alternating magnetic field signals (H)X、HY、HZ) The subsurface earth electromagnetic field and the controllable source electromagnetic field signals are recorded simultaneously. All the data collected are stored in the data storage module 5.
Based on the content of the above embodiments, as an alternative embodiment: the land multiparameter physical data acquisition device further comprises: a data transmission module;
the data transmission module is connected with the geophysical data acquisition device and used for transmitting acquired data to a computer of the base data processing center through remote wireless transmission to perform data processing.
Specifically, as shown in fig. 1, a three-component attitude sensor 8 and a data transmission module 9 are arranged on the other two sides corresponding to the three-component detector 2, after the data acquisition operation is completed, the land multi-parameter physical data acquisition device 1 automatically transmits the acquired data to a remote data receiving base station in the work area or a communication satellite above the work area through the data transmission module, and the communication satellite transmits the data to a computer of a base data processing center through the data transmission module.
It should be noted that the data transmission module may transmit in a wired or wireless manner; extracting seismic wave velocity data and attenuation coefficients of rocks or strata related to elastic properties, resistivity data of rocks or strata related to electromagnetic properties, density parameters of rocks or strata related to gravity properties and magnetic parameters of rocks or strata related to stratum magnetic properties by processing the obtained ground three-component seismic data, five-component magnetotelluric and controllable source electromagnetic data, three-component gravity data and three-component magnetic field data;
performing inversion imaging according to the seismic wave velocity value and the attenuation coefficient, the resistivity value, the three-component gravity value and the three-component magnetic field value below each measuring point to obtain the distribution rules of the elastic parameters, the electrical parameters, the density values and the magnetic field intensity of the rock or the stratum within a certain distance range below the measuring points;
according to the obtained seismic wave velocity value and the distribution rule of the attenuation coefficient, the resistivity value and the density value of the rock or the stratum, the explanation and the evaluation of the distribution characteristics and the rule of the geological structure, the oil gas-containing or high-density mineral in the rock or the stratum in a certain range below the measuring point are realized;
according to the obtained distribution rule of the magnetic field intensity of the rock or the stratum, the explanation and evaluation of the distribution characteristics and the rule of the magnetic minerals of the rock or the stratum within a certain range below the measuring point are realized.
The land multi-parameter physical data acquisition device provided by the embodiment of the invention can detect the seismic wave velocity and attenuation coefficient, resistivity, density and distribution rule of magnetic minerals of a geological structure, a rock stratum or a stratum in a larger range below a position to be detected, can improve the resolution capability of a target geological body, greatly reduce the interference of various artificial noises on comprehensive geophysical measured data, improve the signal-to-noise ratio of the comprehensive geophysical measured data, provide the occurrence information of the stratum, know the spatial distribution state of a high-density or high-magnetism geological body and realize the comprehensive explanation and evaluation of the velocity, resistivity, density and magnetic parameters of the reservoir or the minerals.
Based on the content of the above embodiments, as an alternative embodiment: the land multiparameter physical data acquisition device further comprises: an analog-to-digital converter;
the analog-to-digital converter is respectively connected with the seismic signal sensor, the induction coil type alternating magnetic field sensor, the electric field sensor, the gravity sensor, the fluxgate type magnetic field sensor and the attitude sensor and is used for converting the acquired analog signals into digital signals.
Specifically, as shown in fig. 3, the electric field sensors 11 and 12 are connected to two input terminals of one analog-to-digital converter 5, and the electric field sensors 13 and 14 are connected to two input terminals of the other analog-to-digital converter 5, so that the arrangement enables the acquisition means to acquire two mutually orthogonal induced electric field components EX and EY.
The embodiment of the invention converts the seismic data received by the land multi-parameter physical data acquisition device into digital signals through the analog-to-digital converter, and stores the digital signals in the corresponding storage module, thereby realizing the extraction of the ground seismic data and facilitating the later processing and interpretation.
Based on the content of the above embodiments, as an alternative embodiment: the land multiparameter physical data acquisition device further comprises: a display device.
Specifically, as shown in fig. 1, in the embodiment of the present invention, the land multi-parameter physical data acquisition device includes a data display panel and an instrument control operation keyboard 6, and the data display and control panel 6 on the top of the instrument is connected to the intelligent computer control system 5, and is configured to display measured data and send a control instruction to the intelligent computer control system 5.
Based on the content of the above embodiments, as an alternative embodiment: the land multiparameter physical data acquisition device further comprises: a power supply device;
the power supply device is connected with the main control device, the data acquisition device, the data transmission device and the display device and used for providing power.
Specifically, in the embodiment of the present invention, the power supply device is respectively connected to all devices and modules inside the terrestrial multi-parameter physical data acquisition device 1, such as a main control device, a data acquisition device, a data transmission device, and a display device. The power supply device can be charged in a wired or wireless charging mode and comprises a battery module and a wireless charging module. As in fig. 1, the power supply means may be a high-energy rechargeable battery 7.
Based on the content of the above embodiments, as an alternative embodiment: the land multiparameter physical data acquisition device further comprises: an instrument ground wire;
the instrument grounding wire is connected with a land multi-parameter physical data acquisition device.
Specifically, as shown in fig. 1, the instrument ground wire 18 is connected to the land multiparameter physical data acquisition device 1, and mainly guides electricity on the metal casing of the charged instrument to the ground, so as to protect the instrument and reduce the noise level of the instrument.
Based on the content of the above embodiments, as an alternative embodiment: the embodiment of the invention provides an embodiment of a land multi-parameter physical data acquisition device, which comprises the following steps:
specifically, as shown in fig. 1, 2 and 4, the physical data acquisition device 1 with the land multiparameter is well arranged at the predetermined measuring point coordinate position according to the construction design requirements, and the self weight of the physical data acquisition device 1 with the land multiparameter can well couple the three-component wave detector arranged at the bottom with the ground so as to acquire high-quality three-component ground seismic data. Wherein, this land multi-parameter's physical data acquisition device 1 includes: the device comprises a three-component detector 2, three-component induction coil type alternating magnetic field sensors 15, 16 and 17, two pairs of orthogonal electric field sensors 11, 12, 13 and 14, a three-component MEMS or cold atom gravity sensor 3, a three-component fluxgate magnetic field sensor 4, a three-component attitude sensor 8 and a data transmission module 9. The three-component detector 2 is arranged at the bottom of the land multi-parameter physical data acquisition device 1, two pairs of orthogonal electric field sensors 11, 12, 13 and 14 are arranged at the periphery of the land multi-parameter physical data acquisition device 1 and are connected by four electric field sensor coaxial cables 20 which can horizontally extend for tens of meters from the inside of the land multi-parameter physical data acquisition device 1, the farthest end of each coaxial cable 20 is connected with one electric field sensor, each electric field sensor is connected with a data acquisition device in an instrument through a coaxial cable, and the two pairs of orthogonal electric field sensors are used for measuring two pieces of underground orthogonal horizontal electric field component data (EX and EY). The three-component induction coil type alternating magnetic field sensors 15, 16 and 17 which are arranged near the periphery of the land multi-parameter physical data acquisition device 1 and are orthogonal in pairs are connected with the data acquisition device in the instrument through coaxial cables 20 and are used for measuring underground three-component alternating magnetic field signals (HX, HY and HZ). The data acquisition device consisting of two pairs of orthogonal electric field sensors and three-component induction coil type alternating magnetic field sensors simultaneously records underground earth electromagnetic field signals and controllable source electromagnetic field signals. The three-component MEMS or cold atom gravity sensor 3 is arranged at two sides corresponding to the three-component flux gate type or cold atom type magnetic field sensor 4 respectively.
At this time, three induction coil type alternating magnetic field sensors 15, 16 and 17 are respectively embedded around the land multi-parameter physical data acquisition device 1, and the distance between the magnetic field sensors and the acquisition device 1 is above 10 meters, so that influence and interference on the magnetic field sensors 15, 16 and 17 when the acquisition device 1 works are eliminated. Wherein the magnetic field sensors 15 and 16 are horizontally buried underground in the north-south direction and the east-west direction, or one of the horizontal magnetic field sensors 15 is horizontally buried in the line-measuring direction, the other horizontal magnetic field sensor 16 is horizontally buried in the direction orthogonal to the horizontal magnetic field sensor 5, the vertical magnetic field sensor 17 is buried in the direction perpendicular to the ground plane, and then the three inductive magnetic field sensors 15, 16 and 17 are connected to the collecting device 1 by coaxial cables, the arrangement being such that the collecting device 1 can collect three mutually orthogonal inductive magnetic field components HX、HYAnd HZ. Then taking the acquisition device 1 as a center, symmetrically arranging two pairs of non-polarized electrode type electric field sensors 11 and 12, 13 and 14 in a north-south direction and an east-west direction in an orthogonal mode, or symmetrically arranging one pair of electric field sensors 11 and 12 on two sides of the acquisition device 1 in a direction parallel to a measuring line direction, symmetrically arranging the other pair of electric field sensors 13 and 14 in a direction perpendicular to the measuring line direction, and connecting the two pairs of electric field sensors 11 and 12, 13 and 14 with the acquisition device 1 by using a coaxial cable 19, wherein the arrangement enables the acquisition device 1 to acquire two mutually orthogonal induced electric field components E XAnd EY。
The two pairs of non-polarized electric field sensors 11 and 12, 13 and 14 are wired to the collecting device 1 in the manner shown in fig. 3, i.e. the electric field sensors 11 and 12 are connected to the two inputs of one preamplifier and the electric field sensors 13 and 14 are connected to the two inputs of the other preamplifier, in such a way that the collecting device 1 is able to collect two mutually orthogonal induced electric field components EXAnd EY。
After the three inductive magnetic field sensors 15, 16 and 17 and the two pairs of non-polarized electric field sensors 11 and 12, 13 and 14 are deployed,after the acquisition device system 1 is started to carry out initialization processes such as system self-check, GPS or Beidou position correction, battery detection, high-precision time service, remote data receiving base station communication test or satellite data transmission communication test, target setting and the like, the acquisition device 1 starts to enter a comprehensive geophysical data acquisition working state. The acquisition device 1 starts to measure five-component magnetotelluric (three-component magnetic field (H)) at the predetermined measurement pointX、HY、HZ) Horizontal electric field (E)X、EY) Three-component gravitational field (g)x、gy、gz) And three-component magnetic field (T)X、TY、TZ) A signal. If the artificial seismic sources (hammering, explosive and controllable seismic sources) in the measuring work area start to be excited at the moment, the ground high-power dipole current source also starts to be excited, and the acquisition device 1 starts to carry out ground three-component seismic signals and time frequency (time domain and frequency domain) two-domain five-component controllable source electromagnetism (three-component magnetic field (H) and frequency domain) X、HY、HZ) Horizontal electric field (E)X、EY) ) acquisition of the signal. After the data acquisition operation is completed, the acquisition device 1 automatically transmits the acquired comprehensive geophysical data to a remote data receiving base station in the work area or a communication satellite above the work area through the data transmitting antenna 10, and the communication satellite transmits the data to a computer of a base data processing center. At the moment, the small intelligent land comprehensive geophysical data acquisition system can be moved to the next preset measuring point position to repeat the comprehensive geophysical data acquisition operation. It should be noted that the above-mentioned acquisition device 1 and the land multi-parameter physical data acquisition device 1 are the same device.
The embodiment of the invention can simplify the design and manufacture of the land multi-parameter physical data acquisition station to a great extent, greatly reduce the production and manufacture cost of the land geophysical data acquisition station, and facilitate the use and maintenance in ground production with high degree of automation. The land multi-parameter physical data acquisition provided by the embodiment of the invention can simultaneously perform data acquisition of ground earthquake, ground magnetotelluric and controllable source time-frequency electromagnetism, ground gravity and ground magnetic field and high-speed data wireless transmission work at the same measuring point, and realize comprehensive exploration and multi-parameter multi-method comprehensive evaluation of underground geological structures, oil and gas resources, metal mineral resources, underground water and engineering geological requirements by quickly utilizing ground earthquake, magnetotelluric, controllable source time-frequency electromagnetism, gravity and magnetic comprehensive exploration technologies.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A land multi-parameter physical data acquisition device, comprising: the system comprises a main control device, a data acquisition device and a data sending device; the data acquisition device and the data sending device are connected with the main control device; wherein,
the main control device receives a preset measuring point coordinate position, and the land multi-parameter physical data acquisition device performs data acquisition according to the measuring point coordinate position; the main control device controls the acquisition device to complete data acquisition and controls the acquisition device to transmit the acquired data to the data sending device; and the main control device controls the data sending device to carry out remote wireless data transmission.
2. The land multi-parameter physical data acquisition device of claim 1, wherein said data acquisition device comprises:
a three-component seismic signal sensor, a three-component induction coil type alternating magnetic field sensor, a non-polarized electrode type electric field sensor, a three-component MEMS or cold atom gravity sensor, a three-component fluxgate or cold atom type magnetic field sensor and a three-component attitude sensor;
the three-component seismic signal sensor is used for acquiring land three-component seismic data;
the three-component induction coil type alternating magnetic field sensor and the non-polarized electrode type electric field sensor are used for acquiring three-component electromagnetic data;
the three-component gravity sensor is used for acquiring three-component gravity data;
the three-component fluxgate magnetic field sensor is used for acquiring three-component magnetic force data;
the three-component attitude sensor is used for recording the inclination angle, azimuth angle and inclination of the seismic sensor, the gravity sensor and the fluxgate magnetic field sensor.
3. The land multi-parameter physical data acquisition device of claim 2, further comprising: a coaxial cable;
The coaxial cable is connected with the electric field sensor.
4. The land multi-parameter physical data acquisition device of claim 2, further comprising: a data storage module;
the data storage module is connected with the data acquisition device and is used for storing the land seismic data, the electromagnetic data, the gravity data and the magnetic data.
5. The land multi-parameter physical data acquisition device of claim 4, further comprising: a data transmission module;
the data transmission module is connected with the data acquisition device and is used for remotely and wirelessly transmitting the acquired data to a computer of a data processing center for data processing.
6. The land multi-parameter physical data acquisition device of claim 2, further comprising: a 32-bit analog-to-digital converter;
the analog-to-digital converter is respectively connected with the seismic signal sensor, the induction coil type alternating magnetic field sensor, the electric field sensor, the gravity sensor, the fluxgate type magnetic field sensor and the attitude sensor and is used for converting the acquired analog signals into digital signals.
7. The land multi-parameter physical data acquisition device of claim 1, further comprising: a display device.
8. The land multi-parameter physical data acquisition device of claim 7, further comprising: a power supply device;
the power supply device is connected with the main control device, the data acquisition device, the data transmission device and the display device and used for providing power.
9. The land multiparameter physical data acquisition device of claim 2, wherein the seismic signal sensor comprises: three-component moving-coil detectors or digital detectors or acceleration detectors or fiber detectors.
10. The land multi-parameter physical data acquisition device of claim 1, further comprising: an instrument ground wire;
the ground wire of the instrument is connected with the land multi-parameter physical data acquisition device.
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