Novel sensor for seismoelectric detection

Abstract

The utility model discloses a novel sensor for seismoelectric detection. A novel sensor for seismoelectric detection comprises a seismic sensor and an electrode. The earthquake sensor comprises a bottom shell, an upper shell and a sensor body. The electrode is fixed at the bottom of the bottom shell; the upper shell is provided with a data line, and the data line is electrically connected with the electrode and the sensor body. According to the novel sensor used for seismoelectric detection provided by the utility model, the earthquake sensor and the electrode installed on the earthquake sensor are arranged, the earthquake sensor is fixed at an installation position by using the electrode, and fixation of the electric field signal acquisition device and the earthquake signal acquisition device is realized at the same time. And the installation efficiency of the signal acquisition equipment can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a novel sensor for seismic detection. Background Technology

[0002] In advanced geological exploration for underground engineering, seismic sensors are commonly used to collect seismic signals, while electrodes are used to collect electric field signals. These are two separate signal acquisition devices used to analyze underground geological conditions. It is well known that modeling and analyzing tunnels requires numerous signal acquisition points. Each point necessitates drilling holes in the rock face to fix the seismic sensor and electrodes. The current independent installation method for signal acquisition equipment undoubtedly increases the workload.

[0003] Therefore, it is necessary to provide a new type of sensor for seismic detection to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a new type of sensor for seismic detection that can improve the installation efficiency of signal acquisition equipment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A novel sensor for seismic detection includes a seismic sensor and electrodes. The seismic sensor comprises a bottom shell, an upper shell, and a sensor body. The electrodes are fixed to the bottom of the bottom shell, and a data cable is installed on the upper shell. The data cable is electrically connected to the electrodes and the sensor body.

[0007] Preferably, a threaded tube is installed on the bottom shell, and a threaded connector is installed at one end of the electrode.

[0008] Preferably, a positioning tube is installed on the upper shell, the positioning tube is connected to the data cable, and a boss is provided on the top of the sensor body.

[0009] Preferably, a spring is installed inside the positioning tube.

[0010] Preferably, a first connecting line and a second connecting line are installed on the sensor body.

[0011] Preferably, a slot is provided on the bottom shell, and an elastic buckle is installed on the top shell.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) This utility model sets up an earthquake sensor and an electrode installed on the earthquake sensor, and uses the electrode to fix the earthquake sensor in the installation position, thereby simultaneously fixing the electric field signal acquisition device and the earthquake signal acquisition device, which can effectively improve the installation efficiency of the signal acquisition device.

[0014] (2) By setting a threaded tube and a threaded connector, this utility model can facilitate the installation and disassembly of the electrode;

[0015] (3) By setting a positioning tube and a boss made of metal, this utility model can facilitate the positioning and installation of the sensor body and facilitate the transmission of signals by the electrodes.

[0016] (4) By installing a spring inside the positioning tube, this utility model can use the spring force to press the sensor body tightly against one end of the threaded tube.

[0017] (5) This utility model can conveniently transmit seismic signals and electric field signals by installing a first connecting line and a second connecting line on the sensor body;

[0018] (6) This utility model can facilitate the assembly of earthquake sensors by setting a slot and an elastic buckle. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the novel sensor for seismic detection provided by this utility model;

[0020] Figure 2 for Figure 1 The diagram shows the structure of the seismic sensor in the new type of sensor for seismic detection.

[0021] Figure 3 for Figure 1 The diagram shows the structure of the electrodes in a novel sensor for seismic detection.

[0022] Figure 4 for Figure 1 The diagram shows the structure of the bottom shell in the new sensor for seismic detection.

[0023] Figure 5 for Figure 1 The diagram shows the structure of the upper shell in the novel sensor for seismic detection.

[0024] Figure 6 for Figure 1 The diagram shows the structural schematic of the sensor body in the novel sensor for seismic detection.

[0025] The corresponding names of the attached figures are: 1-seismic sensor, 2-electrode, 11-bottom shell, 12-upper shell, 13-sensor body, 14-threaded tube, 15-positioning tube, 16-bore, 17-spring, 18-data cable, 19-first connecting line, 20-second connecting line, 21-threaded connector, 111-slot, 122-elastic buckle. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0027] Example 1:

[0028] like Figure 1-6 As shown, this utility model provides a novel sensor for seismic and electric field detection, comprising: a seismic sensor 1 and electrodes 2 mounted on the seismic sensor 1. The seismic sensor 1 includes a bottom shell 11, an upper shell 12, and a sensor body 13. The bottom shell 11 and the upper shell 12 are inserted to form an outer shell, and the sensor body 13 is fixed inside the outer shell. A data cable 18 is mounted on the upper shell 12. The electrodes 2 are fixed to the bottom of the bottom shell 11. The data cable 18 is electrically connected to the electrodes 2 and the sensor body 13, and is used to transmit the seismic signals collected by the sensor body 13 and the electric field signals collected by the electrodes 2. The signals are transmitted to the corresponding devices for subsequent research and analysis. The sensor body 13 can be a MEMS accelerometer (frequency response 0.1-2000Hz), and the electrode 2 can be a platinum-plated titanium alloy needle array, supporting DC to 10kHz wideband electric field measurement. In use, the electrode 2 is inserted into a borehole in the tunnel rock wall for fixation. The seismic sensor 1 is fixed to the rock wall using the electrode 2. A single drilling can simultaneously install and fix the seismic sensor 1 and the electrode 2, reducing the number of boreholes required for signal acquisition and greatly improving the installation efficiency of the equipment. Moreover, after the electrode 2 is inserted into the rock wall, it can collect the electric field signal within the rock wall. Furthermore, an earthquake will cause the seismic sensor 1 to vibrate through the electrode 2, and the sensor body 13 will collect the seismic signal. The seismic signal and the electric field signal are transmitted to external devices through the data line 18. After the external devices study and analyze the data, they can determine the underground geological information.

[0029] By setting up a seismic sensor 1 and an electrode 2 installed on the seismic sensor 1, the seismic sensor 1 is fixed in the installation position using the electrode 2. This simultaneously fixes the electric field signal acquisition device and the seismic signal acquisition device, effectively improving the installation efficiency of the signal acquisition device.

[0030] Example 2:

[0031] like Figure 3-4As shown, in this embodiment, a threaded tube 14 is installed on the bottom shell 11, and a threaded connector 21 is installed on one end of the electrode 2. The threaded connector 21 is screwed into the threaded tube 14, thereby fixing the electrode 2 on the bottom shell 11 (earthquake sensor 1).

[0032] By providing the threaded tube 14 and the threaded connector 21, the installation and removal of the electrode 2 can be facilitated.

[0033] Example 3:

[0034] like Figure 5-6 As shown, in this embodiment, a metal positioning tube 15 is installed on the upper shell 12. The positioning tube 15 is connected to the data cable 18. The sensor body 13 adopts a metal shell and a MEMS accelerometer is installed inside. A boss 16 is provided at the top of the sensor body 13. The boss 16 is inserted into the positioning tube 15 to position the sensor body 13. The metal shell of the sensor body 13 is pressed together with the threaded tube 14 and the positioning tube 15 to conduct electrical signals. The electrical signal 5 of the electrode 2 is transmitted to the data cable 18 through the threaded tube 14, the metal shell of the sensor body 13, and the positioning tube 15.

[0035] By setting up a positioning tube 15 and a boss 16 made of metal, the sensor body 13 can be easily positioned and installed, and the electrode 2 can easily transmit signals.

[0036] Example 4:

[0037] like Figure 5 As shown, in this embodiment, a spring 17 is installed inside the positioning tube 15. When the boss 16 is inserted into the positioning tube 15, the spring 17 is compressed. The compression of the spring 17 presses the bottom of the sensor body 13 tightly against the end of the threaded tube 14. It is worth noting that the wire in the data line 18 used to transmit the signal of the electrode 2 can also be connected to the spring 17.

[0038] By installing a spring 17 inside the positioning tube 15, the spring force of the spring 17 can be used to press the sensor body 13 tightly against one end of the threaded tube 14.

[0039] Example 5:

[0040] like Figure 6 As shown, in this embodiment, a first connecting line 19 and a second connecting line 20 are installed on the sensor body 13. The second connecting line 20 is connected to the outer shell of the sensor body 13, and one end of it is connected to the data line 18 to transmit the electric field signal collected by the electrode 2. The first connecting line 19 is electrically connected to the accelerometer inside the sensor body 13, and one end of it is connected to the data line to transmit the seismic signal collected by the seismic sensor 1.

[0041] By installing a first connecting line 19 and a second connecting line 20 on the sensor body 13, seismic signals and electric field signals can be easily transmitted.

[0042] Example 6:

[0043] like Figure 4-5 As shown in this embodiment, a slot 111 is provided on the bottom shell 11, and an elastic buckle 122 is installed on the upper shell 12. During installation, the elastic buckle 122 of the upper shell 12 is inserted into the slot 111, and the limiting protrusion on the inner side of the elastic buckle 122 is engaged with the bottom edge of the slot 111, realizing the snap-fit ​​installation of the upper shell 12 and the bottom shell 11. Compared with the screw installation method, this structure facilitates the assembly of the seismic sensor 1 and the replacement of the sensor body 13. It is worth noting that a sealing ring should be installed on the contact surface between the upper shell 12 and the bottom shell 11 for sealing.

[0044] The assembly of the seismic sensor 1 can be facilitated by setting the slot 111 and the elastic buckle 122.

[0045] Working principle: When in use, electrode 2 is inserted into the borehole in the tunnel rock wall and fixed. Electrode 2 is used to fix seismic sensor 1 to the rock wall. One drilling can realize the synchronous installation and fixing of seismic sensor 1 and electrode 2 at the same time, which reduces the number of boreholes required for signal acquisition and can greatly improve the installation efficiency of the equipment.

Claims

1. A novel sensor for seismic detection, characterized in that, include: Seismic sensor (1) and electrode (2); The earthquake sensor (1) includes a bottom shell (11), an upper shell (12), and a sensor body (13); The electrode (2) is fixed to the bottom of the base shell (11); A data cable (18) is installed on the upper shell (12), and the data cable (18) is electrically connected to the electrode (2) and the sensor body (13).

2. The novel sensor for seismic detection according to claim 1, characterized in that, A threaded tube (14) is installed on the bottom shell (11), and a threaded connector (21) is installed at one end of the electrode (2).

3. A novel sensor for seismic detection according to claim 1, characterized in that, A positioning tube (15) is installed on the upper shell (12), the positioning tube (15) is connected to the data line (18), and a boss (16) is provided on the top of the sensor body (13).

4. A novel sensor for seismic detection according to claim 3, characterized in that, A spring (17) is installed inside the positioning tube (15).

5. A novel sensor for seismic detection according to claim 1, characterized in that, The sensor body (13) is equipped with a first connecting line (19) and a second connecting line (20).

6. A novel sensor for seismic detection according to claim 1, characterized in that, The bottom shell (11) is provided with a slot (111), and the upper shell (12) is provided with an elastic buckle (122).

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