Broadband intelligent seismic sensor

Abstract

The utility model relates to a broadband intelligent seismic sensor. The seismic sensor comprises a sensor cavity, and a circuit board, a detector group and a power supply module which are sequentially arranged in the sensor cavity. The detector group comprises a detector cavity, and a longitudinal wave detector, a first transverse wave detector and a second transverse wave detector which are arranged in the detector cavity. According to the utility model, low-frequency components in earthquake induction signals generated by the detector group are amplified through the circuit board, so that the bandwidth of the intelligent earthquake sensor is effectively widened, and the acquisition range of earthquake data is enlarged, thereby improving the detection precision of the earthquake sensor and enabling the sensitivity of the earthquake sensor to be better. The broadband intelligent seismic sensor transmits data in real time through the 4G module or the 5G module, and the working efficiency is greatly improved. The earthquake sensor has the advantages of being convenient to carry, easy to use, high in transmission efficiency, high in detection precision, good in sensitivity and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of seismic exploration, in particular to a broadband intelligent seismic sensor. Background Art

[0002] Existing seismic exploration equipment, such as seismic sensors, generally only have detectors in one direction, or in three directions, to achieve seismic exploration through detection data in three directions. The existing three-directional seismic sensors have too narrow frequency bands, and cannot detect lower frequency data at the low end, resulting in low detection accuracy and poor sensitivity. Utility Model Content

[0003] In order to solve the deficiencies in the prior art, the purpose of the utility model is to provide a broadband intelligent seismic sensor.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A broadband intelligent seismic sensor, comprising a sensor cavity and a circuit board, a detector group and a power supply module arranged in the sensor cavity in sequence;

[0006] The detector group includes a detector cavity and a longitudinal wave detector, a first shear wave detector and a second shear wave detector arranged in the detector cavity.

[0007] Furthermore, the sensor cavity includes a first sensor housing and a second sensor housing.

[0008] Furthermore, the detector cavity includes a first detector cover and a second detector cover. The longitudinal wave detector, the first shear wave detector and the second shear wave detector are all provided with a shielding cover; the shielding cover is made of Permalloy.

[0009] Furthermore, the first sensor housing is provided with a digital transmission charging port, a water bubble and a waterproof cap.

[0010] Furthermore, a 4G module or a 5G module is arranged on the circuit board.

[0011] Furthermore, a gland is provided inside the first sensor housing;

[0012] The circuit board is fixed on the pressure cover.

[0013] Furthermore, a cotton pad is provided between the detector cavity and the power module.

[0014] Furthermore, a tail cone and a horizontal cone are provided on the second sensor housing.

[0015] Furthermore, a silicone plug and fixing screws are provided on the second sensor housing.

[0016] Furthermore, the power module adopts a battery pack.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] The utility model amplifies the low-frequency components in the seismic sensing signal generated by the detector group through the circuit board, effectively broadens the bandwidth of the intelligent seismic sensor, increases the acquisition range of seismic data, thereby improving the detection accuracy of the seismic sensor and making the seismic sensor more sensitive. The broadband intelligent seismic sensor transmits data in real time through a 4G module or a 5G module, greatly improving work efficiency. The seismic sensor described in the utility model has the characteristics of being easy to carry, simple to use, high in transmission efficiency, high in detection accuracy, and good in sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded structural diagram of the broadband intelligent seismic sensor of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the medium- and wide-band intelligent seismic sensor of the utility model;

[0021] Figure 3 It is a cross-sectional view of the broadband intelligent seismic sensor of the utility model.

[0022] in:

[0023] 10. Sensor housing, 11. First sensor housing, 12. Pressure cover, 13. Waterproof cap, 14. Level bubble, 15. Digital transmission charging port, 21. Circuit board, 22. 4G module or 5G module, 30. Detector group, 31. First detector cover, 32. Shear wave detector one, 33. Shear wave detector two, 34. Longitudinal wave detector, 35. Second detector cover, 41. Power module, 42. Cotton pad, 111. Second sensor housing, 112. Fixing screws, 113. Silicone plug, 114. Horizontal cone, 115. Tail cone. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1 to Figure 3 A broadband intelligent seismic sensor is shown, which includes a sensor cavity and a circuit board 21, a detector group and a power module arranged in the sensor cavity in sequence; the detector group includes a detector cavity and a longitudinal wave detector 34, a first shear wave detector 32 and a second shear wave detector 33 arranged in the detector cavity.

[0026] The receiving device that receives waves in three directions is called a three-component detector. For ease of operation, the three-directional detectors are usually installed in a shell, which is called a three-component detector. Among them, there is one vertical direction (receiving P waves), two horizontal directions (receiving SV waves and SH waves respectively), and the characteristics of the three detectors are required to be consistent. The three-component source can be excited by a vertical controllable source and a horizontal controllable source respectively. In areas where controllable sources cannot be used, explosives are often used as the source for P-wave and SV-wave exploration.

[0027] The longitudinal and transverse wave detectors in the embodiment of the utility model are composed of a detector group through the upper and lower shells of the detector, which are firmly fixed on the second sensor housing, and the power supply is fixed on the outside. The power supply and the detector group are connected to the circuit board through a harness. The circuit board and the battery gland are fixed to the first sensor housing. The low-frequency components in the seismic sensing signal generated by the detector group are amplified by the circuit board, which effectively broadens the bandwidth of the intelligent seismic sensor and increases the collection range of seismic data, thereby improving the detection accuracy of the seismic sensor and making the sensitivity of the seismic sensor better. The circuit board includes a chip ADS1283 (single-chip analog-to-digital converter) and an integrated low-noise programmable gain amplifier.

[0028] Furthermore, the sensor cavity includes a first sensor housing 11 and a second sensor housing 111 .

[0029] Furthermore, the detector cavity includes a first detector cover 31 and a second detector cover 35. The longitudinal wave and shear wave detectors are both provided with shielding covers, which are made of Permalloy and are used to shield interference signals. The shielding covers can effectively shield the magnetic field interference effect of the detectors. The three detectors transmit the seismic sensing signals to the circuit board through wires.

[0030] Furthermore, the first sensor housing 11 is provided with a data transmission charging port 15 , a water bubble 14 and a waterproof cap 13 .

[0031] Furthermore, a 4G module or a 5G module 22 is provided on the circuit board 21. The circuit board adds a 4G / 5G signal module, and is no longer limited to the data transmission charging port for data transmission.

[0032] Furthermore, a pressure cover 12 is disposed inside the first sensor housing 11 ; the circuit board 21 is fixed on the pressure cover 12 .

[0033] Furthermore, a cotton pad 42 is provided between the detector cavity and the power module 41 .

[0034] Furthermore, the second sensor housing 111 is provided with a tail cone 115 and a horizontal cone 114. The tail cone 115 is used to be buried in the soil and can be in close contact with the soil. There are three horizontal cones 114 arranged along the circumference to ensure the balance of the sensor when it is placed on the ground. When the sensor is placed on the ground, the tail cone needs to be removed. The tail cone 115 and the horizontal cone 114 are fastened to the second sensor housing 111 and are close to the detector group, and have the function of transmitting seismic waves. The tail cone 115 and the horizontal cone 114 are installed at the bottom of the second sensor housing. The tail cone 115 is installed in the middle, and the horizontal cone 114 is installed at the bottom and evenly arranged along the circumference.

[0035] Furthermore, a silicone plug 113 and a fixing screw 112 are provided on the second sensor housing 111. The fixing screw 112 is used to fasten the first sensor housing 11 and the second sensor housing 111. The silicone plug 113 is used to prevent mud and debris from entering the screw hole, making it difficult to disassemble and assemble the fixing screw 112, and to maintain a beautiful appearance. The second sensor housing 111 is provided with 6 screw holes, the first sensor housing 11 is embedded with 6 nuts, and the second sensor housing 111 is provided with 6 corresponding screw holes. The fixing screw 112 is inserted from the bottom to fasten the first sensor housing 11 and the second sensor housing 111, and then the 6 holes at the bottom are filled with silicone plugs to prevent foreign matter from entering.

[0036] Furthermore, the power module 41 adopts a battery pack.

[0037] The above-described embodiments are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A broadband intelligent seismic sensor, characterized in that: The seismic sensor comprises a sensor cavity and a circuit board (21), a detector group and a power supply module which are sequentially arranged in the sensor cavity; The detector group comprises a detector cavity and a longitudinal wave detector (34), a first shear wave detector (32) and a second shear wave detector (33) arranged in the detector cavity; The sensor cavity comprises a first sensor housing (11) and a second sensor housing (111); The detector cavity comprises a first detector cover (31) and a second detector cover (35); The longitudinal wave detector (34), the first shear wave detector (32) and the second shear wave detector (33) are all provided with a shielding cover; the shielding cover is made of Permalloy; The first sensor housing (11) is provided with a data transmission charging port (15), a level bubble (14) and a waterproof cap (13); The circuit board (21) is provided with a 4G module or a 5G module (22); A gland (12) is provided inside the first sensor housing (11); The circuit board (21) is fixed on the gland (12); A cotton pad (42) is provided between the detector cavity and the power module (41); The second sensor housing (111) is provided with a tail cone (115) and a horizontal cone (114); The second sensor housing (111) is provided with a silicone plug (113) and a fixing screw (112); and the power module (41) adopts a battery pack.

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