CN219795971U - Main control device with transient electromagnetic detection and receiving functions - Google Patents
Main control device with transient electromagnetic detection and receiving functions Download PDFInfo
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- CN219795971U CN219795971U CN202321118572.0U CN202321118572U CN219795971U CN 219795971 U CN219795971 U CN 219795971U CN 202321118572 U CN202321118572 U CN 202321118572U CN 219795971 U CN219795971 U CN 219795971U
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- 230000001052 transient effect Effects 0.000 title claims abstract description 82
- 238000001514 detection method Methods 0.000 title claims abstract description 65
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052742 iron Inorganic materials 0.000 claims abstract description 18
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 2
- 238000013016 damping Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 239000000523 sample Substances 0.000 description 1
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Abstract
The utility model discloses a transient electromagnetic detection and reception function main control device which comprises a transient electromagnetic detection and reception main control device body, wherein a loop-shaped rod is arranged below the transient electromagnetic detection and reception main control device body. According to the utility model, through the arranged loop bar, the limiting support block, the iron sheet and the rotary outer inclined support component, four support legs are conveniently and outwards inclined to be turned out to form a splayed shape when in use, the transient electromagnetic detection receiving main control device body is integrally supported up, the phenomenon that personnel are directly placed on the ground and need to bow the waist for a long time is prevented, the convenience and comfort of use are improved, the support legs can be stored and fixed after use, the transportation and carrying are convenient, the shock-proof buffer component is arranged, the shock-proof force-relieving force is conveniently buffered when the transient electromagnetic detection receiving main control device body generates jolt vibration in the transportation, the relatively hard vibration impact force is flexibly relieved, the risk of damage caused by the hard vibration impact is reduced, and the transportation and carrying safety is improved.
Description
Technical Field
The utility model relates to the technical field of transient electromagnetic detection, in particular to a main control device with a transient electromagnetic detection receiving function.
Background
The transient electromagnetic method is a time domain artificial source electromagnetic exploration means, is widely applied to resource exploration and engineering investigation by only observing a secondary field because of sensitivity to low resistance, is a detection and reception master control instrument for receiving and controlling in transient electromagnetic detection work, such as a transient electromagnetic instrument with the model of RS-TEM28 on the market, and the receiving-transmitting-integrating coil of the instrument is the lightest-integrating coil, has the weight of 1.5 kg and is about one third of the receiving-transmitting coil of the similar instrument on the market, and can receive detection data of a probe magnetic rod and master control; the number of turns of the receiving coil is as many as 150 turns, which is 3-5 times that of the existing commercial instrument, and the receiving coil is provided with shielding and has strong anti-human electromagnetic interference capability; the maximum effective depth can reach more than 150 meters; the emission current is large, the receiving signal is strong, the anti-interference capability is strong, and the device can work in a strong background noise environment; in addition, for the transient electromagnetic detection and reception function main control device with the built-in receiving module, publication number CN202794562U also discloses a transient electromagnetic detection and reception function main control device, which comprises a transient electromagnetic signal main control module and a transient electromagnetic signal receiving module, wherein the transient electromagnetic signal main control module is connected with the transient electromagnetic signal receiving module, and the transient electromagnetic detection and reception function main control device has the advantages of wide detection range, high detection efficiency and convenient use.
The existing transient electromagnetic detection and reception function main control device is often used by simply placing a transient electromagnetic instrument on the ground when being carried to outdoor use, and in use, the main control device has some defects: 1. the device is directly placed on the ground, the position is low, a person is required to operate the bow waist for a long time, and the use is convenient and comfortable; 2. when jolting vibration occurs during transportation and carrying, the jolting vibration is easily and directly transmitted to a large hard vibration impact force of the transient electromagnetic instrument, so that the risk of damage of the transient electromagnetic instrument caused by the hard vibration impact is large during transportation and carrying; in view of this, we propose a master control device with a transient electromagnetic detection and reception function for solving the above-mentioned problems.
Disclosure of Invention
The utility model aims to provide a main control device with a transient electromagnetic detection and reception function, so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the transient electromagnetic detection and reception function main control device comprises a transient electromagnetic detection and reception main control device body, a square rod is arranged below the transient electromagnetic detection and reception main control device body, six shockproof buffer assemblies are fixedly embedded in the top of the square rod in a rectangular shape, the top of the shockproof buffer assemblies are fixedly connected with the bottom of the transient electromagnetic detection and reception main control device body, and the shockproof buffer assemblies are used for buffering and unloading force to the transient electromagnetic detection and reception main control device body when jolt vibration occurs in transportation and carrying;
the bottom of the loop bar is rectangular and fixedly connected with four spacing supporting blocks, the bottom of one side close to the left and right opposite two spacing supporting blocks is provided with an inclined plane, two rotary outer inclined support components are rotationally connected between the front side inner wall and the rear side inner wall of the loop bar, the top magnetic attraction of the two rotary outer inclined support components is fixedly provided with one iron sheet, the front side and the rear side of the iron sheet are fixedly connected with the front side inner wall and the rear side inner wall of the loop bar respectively, the rotary outer inclined support components are matched with the corresponding two spacing supporting blocks, and the rotary outer inclined support components are used for supporting the loop bar frame height in use so as to realize integral support of the main control device body frame height for transient electromagnetic detection.
Preferably, the shockproof buffer assembly comprises a fixed box embedded and fixed at the top of the square rod, the bottom of the fixed box is provided with an opening and is fixedly connected with a bottom plate, a piston is sleeved in the fixed box in a sealing sliding manner, the top of the piston is fixedly connected with two vertical guide rods, the top ends of the two vertical guide rods positioned on the same piston are respectively and slidably extended to the upper part of the corresponding fixed box and are fixedly connected with the same connecting seat, the top of the connecting seat is fixedly connected with the bottom of the transient electromagnetic detection receiving main control device body, and a buffer spring is fixedly connected between the bottom of the piston and the top of the corresponding bottom plate; the connecting seat, the vertical guide rods, the piston, the buffer spring and the bottom plate are matched, when the transient electromagnetic detection receiving main control device body is subjected to jolt vibration to drive the connecting seat to vibrate, the connecting seat vibrates to move downwards, the piston is driven to move downwards through the corresponding two vertical guide rods, the gas in the fixing box corresponding to the piston and the buffer spring are compressed, the elastic damping force generated when the gas and the buffer spring are compressed is utilized to realize buffer unloading force, and the relative hard vibration impact force is flexibly relieved.
Preferably, the rotary outer inclined support component comprises a rotating shaft rotatably arranged between the front inner wall and the rear inner wall of the square rod, two legs are fixedly connected to one sides of the two rotating shafts, two ends of the two legs which are opposite left and right are fixedly bonded with anti-skid rubber blocks, the tops of the legs are fixedly embedded with magnets, the tops of the magnets are adsorbed to the bottoms of the iron sheets, pull rings are fixedly connected to the bottoms of the legs, and the legs are matched with inclined surfaces on the corresponding limiting support blocks; the pivot, landing leg, magnet and the pull ring cooperation that set up, when the pull ring of downward pulling drove the landing leg that corresponds and roll out downwards, the landing leg drives corresponding pivot and rotates, rotates to the inclined plane contact of the spacing piece that corresponds when outwards inclining when the landing leg, is sheltered from the restriction by it, and four landing legs form splayed support this moment, realize the steady overhead support to the loop bar to this realizes when using integrative to receiving master control device body overhead support to transient electromagnetic detection.
Preferably, the top both sides of returning the shape pole all bond and are fixed with three elasticity anticollision offset, and elasticity anticollision offset is located the below of transient electromagnetic detection receipt master control device body.
Preferably, two vertical guide holes which are respectively in sliding contact with the outer sides of the corresponding vertical guide rods are formed in the inner wall of the top of the fixed box.
Preferably, the front end and the rear end of the rotating shaft are fixedly connected with pin shafts, the front side inner wall and the rear side inner wall of the loop-shaped rod are fixedly connected with two bearings, and the inner rings of the bearings are fixedly sleeved with the outer sides of the corresponding pin shafts.
Preferably, the transient electromagnetic detection receiving main control device body is a transient electromagnetic instrument, and the model of the transient electromagnetic instrument is RS-TEM28.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the transient electromagnetic detection receiving function main control device, the four supporting legs can be rotated out and limited during use through the cooperation of the arranged loop-shaped rods, the limiting supporting blocks, the iron sheet and the rotating outer inclined supporting component, the splayed overhead support can be formed, the transient electromagnetic detection receiving main control device body is integrally and stably supported, the phenomenon that personnel are directly placed on the ground and are required to bow the waist for a long time is prevented, the use convenience and the comfort are improved, the supporting legs can be stored and fixed after the use, the occupied space of the bottom is reduced when the main control device is not used, and the main control device is convenient to transport and carry;
2. this transient electromagnetic detection receives function master control device, through the buffering subassembly that takes precautions against earthquakes that sets up, can cushion when transient electromagnetic detection receives master control device body and jolt vibrations in the transportation and unload the power, the relative hard shake impact force that produces when the flexibility is alleviated and is strikeed the damage risk of damage by hard shake is reduced.
According to the utility model, through the arranged loop bar, the limiting support block, the iron sheet and the rotary outer inclined support component, four support legs are conveniently and outwards inclined to be turned out to form a splayed shape when in use, the transient electromagnetic detection receiving main control device body is integrally supported up, the phenomenon that personnel are directly placed on the ground and need to bow the waist for a long time is prevented, the convenience and comfort of use are improved, the support legs can be stored and fixed after use, the transportation and carrying are convenient, the shock-proof buffer component is arranged, the shock-proof force-relieving force is conveniently buffered when the transient electromagnetic detection receiving main control device body generates jolt vibration in the transportation, the relatively hard vibration impact force is flexibly relieved, the risk of damage caused by the hard vibration impact is reduced, and the transportation and carrying safety is improved.
Drawings
FIG. 1 is a schematic overall perspective view of the present utility model;
FIG. 2 is a schematic view of a front view, partially in section, of the present utility model;
FIG. 3 is an enlarged schematic view of the portion A of FIG. 2 according to the present utility model;
fig. 4 is a schematic view showing a structure in which the four legs of fig. 2 are rotated out of the supporting state according to the present utility model.
In the figure: 1. receiving a main control device body by transient electromagnetic detection; 2. a loop bar; 3. a fixed box; 4. a piston; 5. a vertical guide rod; 6. a connecting seat; 7. a buffer spring; 8. a bottom plate; 9. limiting support blocks; 10. a rotating shaft; 11. a support leg; 12. iron sheet; 13. a magnet; 14. a pull ring; 15. an anti-skid rubber block; 16. elastic anti-collision rubber block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 4, the transient electromagnetic detection receiving function main control device provided by the embodiment comprises a transient electromagnetic detection receiving main control device body 1, wherein the transient electromagnetic detection receiving main control device body 1 is a transient electromagnetic instrument, the model of the transient electromagnetic instrument is RS-TEM28, the transient electromagnetic instrument is used for the main control and display of transient electromagnetic detection receiving, a loop bar 2 is arranged below the transient electromagnetic detection receiving main control device body 1, six shockproof buffer assemblies are embedded and fixed on the top of the loop bar 2 in a rectangular shape, the top of the shockproof buffer assemblies are fixedly connected with the bottom of the transient electromagnetic detection receiving main control device body 1, and the shockproof buffer assemblies are used for buffering and unloading force to the transient electromagnetic detection receiving main control device body 1 when jolt vibration occurs during transportation and carrying;
the bottom of the square rod 2 is four spacing supporting blocks 9 of rectangle fixedly connected with, the top both sides of square rod 2 all bond and are fixed with three elasticity anticollision offset 16, elasticity anticollision offset 16 is located the below of transient electromagnetic detection receiving master control device body 1, play and separate the effect that hits its elasticity in transient electromagnetic detection receiving master control device body 1 below, the bottom of the one side that left and right sides is relative two spacing supporting blocks 9 are close all set up to the inclined plane, rotate between the front side inner wall and the rear side inner wall of square rod 2 and be connected with two rotatory outer bearing diagonal components, the top magnetism of two rotatory outer bearing diagonal components is inhaled and is fixed with same iron sheet 12, the front side and the rear side of iron sheet 12 respectively with the front side inner wall and the rear side inner wall fixed connection of square rod 2, rotatory outer bearing diagonal components cooperatees with two corresponding spacing supporting blocks 9, rotatory outer bearing diagonal components are used for supporting square rod 2 overhead when using, thereby realize integrative overhead support to transient electromagnetic detection receiving master control device body 1.
Specifically, the shockproof buffer assembly comprises a fixed box 3 embedded and fixed at the top of a square rod 2, wherein six embedded grooves are formed in the top of the square rod 2, the inner walls of the embedded grooves are fixedly connected with the outer sides of the corresponding fixed boxes 3, the fixed boxes 3 are embedded and fixed at the top of the square rod 2 through the corresponding embedded grooves, the bottom of the fixed boxes 3 is provided with an opening and fixedly connected with a bottom plate 8, a piston 4 is sleeved in the fixed boxes 3 in a sealing sliding manner, the sealing sliding mounting mode of the fixed boxes 3 and the piston 4 is that in the prior art, two vertical guide rods 5 are fixedly connected at the top of the piston 4, the top ends of the two vertical guide rods 5 positioned on the same piston 4 are respectively and slidably extended above the corresponding fixed boxes 3 and fixedly connected with the same connecting seat 6, two vertical guide holes which are respectively and slidably contacted with the outer sides of the corresponding vertical guide rods 5 are formed in the inner walls of the top of the fixed boxes 3, the top of the connecting seat 6 is fixedly connected with the bottom of a transient electromagnetic detection receiving main control device body 1, and a buffer spring 7 is fixedly connected between the bottom of the piston 4 and the corresponding bottom plate 8; the connecting seat 6, erect guide arm 5, piston 4, buffer spring 7 and bottom plate 8 cooperation that set up, when transient electromagnetic detection receives master control device body 1 to receive jolt vibrations to drive connecting seat 6 vibrations, wherein connecting seat 6 vibrations are down when moving through two perpendicular guide arms 5 that correspond drive piston 4 and move down, the piston 4 compresses the gas in the fixed box 3 that corresponds and buffer spring 7, utilize gas and buffer spring 7 to be produced when compressed elasticity damping force, realize buffering and unload the power, the relative hard shake impact force is alleviated to the flexibility, with this reduces transient electromagnetic detection and receives master control device body 1 and receive the risk of hard shake impact damage.
Further, the rotary outer inclined support component comprises a rotating shaft 10 rotatably arranged between the front inner wall and the rear inner wall of the square rod 2, wherein the front end and the rear end of the rotating shaft 10 are fixedly connected with pin shafts, the front inner wall and the rear inner wall of the square rod 2 are fixedly connected with two bearings, the inner rings of the bearings are fixedly sleeved with the outer sides of the corresponding pin shafts, the rotating shaft 10 is rotatably mounted, two supporting legs 11 are fixedly connected to the adjacent sides of the two rotating shafts 10, the anti-skid rubber blocks 15 are fixedly adhered to the adjacent ends of the two supporting legs 11 which are opposite left and right, the top of the supporting legs 11 are fixedly provided with magnets 13 in an embedded manner, the tops of the supporting legs 11 are provided with embedded grooves with openings, the inner walls of the embedded grooves are fixedly adhered to the outer sides of the corresponding magnets 13, the magnets 13 are embedded and fixed on the tops of the corresponding supporting legs 11 through the embedded grooves, the tops of the magnets 13 are adsorbed to the bottoms of the iron pieces 12, the bottoms of the supporting legs 11 are fixedly connected with pull rings 14, and the supporting legs 11 are matched with the inclined surfaces on the corresponding limiting supporting blocks 9; the pivot 10, landing leg 11, magnet 13 and pull ring 14 cooperation that set up, when pulling pull ring 14 downwards drives the landing leg 11 that corresponds and rolls out downwards, landing leg 11 drives corresponding pivot 10 and rotates, when landing leg 11 rotates to the inclined plane contact of spacing piece 9 that corresponds when outwards inclining, by its shielding restriction, four landing legs 11 form the splayed support this moment, realize the steady overhead support to the loop bar 2, thereby realize when using integrative to transient electromagnetic detection receiving master control device body 1 overhead support, prevent the phenomenon of directly placing lower needs personnel long-time bow waist by a wide margin on ground.
The application method of the embodiment is as follows: when the support is required to be lifted in outdoor use, the pull ring 14 is pulled downwards, the pull ring 14 drives the corresponding supporting leg 11 to rotate downwards, the supporting leg 11 drives the corresponding rotating shaft 10 to rotate, the supporting leg 11 drives the corresponding magnet 13 to be separated from the iron sheet 12, when the supporting leg 11 rotates to incline outwards and contacts with the inclined surface of the corresponding limiting support block 9, the supporting leg 11 is shielded and limited by the inclined surface, at the moment, the four supporting legs 11 form a splayed support, so that the lifting support of the loop bar 2 is realized, the lifting support of the transient electromagnetic detection receiving main control device body 1 is realized integrally, the phenomenon that personnel directly placed on the ground are required to bow and waist for a long time is prevented, and at the moment, the transient electromagnetic detection receiving main control device body 1 can be utilized to receive main control work; after the magnetic attraction type iron sheet iron support is used, the support legs 11 are rotated inwards, the support legs 11 are rotated to be stored in the return rod 2, meanwhile, the support legs 11 drive the corresponding magnets 13 to rotate upwards to be contacted and adsorbed with the bottoms of the iron sheets 12, the support legs 11 are magnetically attracted and fixedly stored, the support legs 11 are stored and fixedly, the occupied space of the bottoms is reduced when the magnetic attraction type iron support is not used, and the magnetic attraction type iron support is convenient to carry and transport;
when jolting and vibrating during transportation, the transient electromagnetic detection receiving main control device body 1 drives the connecting seat 6 to vibrate downwards, wherein the connecting seat 6 drives the piston 4 to slide downwards in the fixed box 3 through the corresponding two vertical guide rods 5 during the downward vibration, the piston 4 compresses the corresponding gas in the fixed box 3 and the buffer spring 7, the buffer unloading force is realized by utilizing the elastic damping force generated when the gas and the buffer spring 7 are compressed, and the relative hard vibration impact force is relieved flexibly, so that the risk that the transient electromagnetic detection receiving main control device body 1 is damaged by the hard vibration impact is reduced.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. Transient electromagnetic detection and reception function master control device, including transient electromagnetic detection and reception master control device body (1), its characterized in that: the transient electromagnetic detection receiving main control device comprises a transient electromagnetic detection receiving main control device body (1), wherein a square rod (2) is arranged below the transient electromagnetic detection receiving main control device body, six shockproof buffer assemblies are fixedly embedded in a rectangular shape at the top of the square rod (2), and the top of the shockproof buffer assemblies is fixedly connected with the bottom of the transient electromagnetic detection receiving main control device body (1);
the bottom of returning shape pole (2) is four spacing piece (9) of rectangle fixedly connected with, and the similar one side bottom of two spacing piece (9) of controlling relative all sets up to the inclined plane, rotates between the front side inner wall and the rear side inner wall of returning shape pole (2) and is connected with two rotatory outer bearing diagonal components, and the top magnetism of two rotatory outer bearing diagonal components is inhaled and is fixed with same iron sheet (12), and the front side and the rear side of iron sheet (12) are respectively with the front side inner wall and the rear side inner wall fixed connection of returning shape pole (2), and rotatory outer bearing diagonal components cooperatees with two spacing piece (9) that correspond.
2. The transient electromagnetic sounding and receiving function main control apparatus of claim 1, wherein: the shock-proof buffering assembly comprises a fixed box (3) which is embedded and fixed at the top of a loop-shaped rod (2), the bottom of the fixed box (3) is provided with an opening and is fixedly connected with a bottom plate (8), a piston (4) is arranged in the fixed box (3) in a sealing sliding sleeve mode, two vertical guide rods (5) are fixedly connected to the top of the piston (4), the tops of the two vertical guide rods (5) located on the same piston (4) are slidably extended to the corresponding upper portion of the fixed box (3) and are fixedly connected with the same connecting seat (6), the top of the connecting seat (6) is fixedly connected with the bottom of a transient electromagnetic detection receiving main control device body (1), and a buffering spring (7) is fixedly connected between the bottom of the piston (4) and the top of the corresponding bottom plate (8).
3. The transient electromagnetic sounding and receiving function main control apparatus of claim 2, wherein: the rotary outer inclined support assembly comprises a rotary shaft (10) rotatably mounted between the front inner wall and the rear inner wall of the square rod (2), two support legs (11) are fixedly connected to one sides of the two rotary shafts (10) in a similar mode, anti-slip rubber blocks (15) are fixedly bonded to one ends of the two support legs (11) which are opposite to each other in a left-right mode, magnets (13) are fixedly embedded in the tops of the support legs (11), the tops of the magnets (13) are adsorbed to the bottoms of iron sheets (12), pull rings (14) are fixedly connected to the bottoms of the support legs (11), and the support legs (11) are matched with inclined faces on corresponding limiting support blocks (9).
4. The transient electromagnetic sounding and receiving function main control apparatus of claim 1, wherein: the top both sides of return shape pole (2) all bond and are fixed with three elasticity anticollision gluing piece (16), and elasticity anticollision gluing piece (16) are located the below of transient electromagnetic detection receipt master control device body (1).
5. The transient electromagnetic sounding and receiving function main control apparatus of claim 2, wherein: two vertical guide holes which are respectively in sliding contact with the outer sides of the corresponding vertical guide rods (5) are formed in the inner wall of the top of the fixed box (3).
6. A transient electromagnetic sounding and receiving function main control apparatus according to claim 3, wherein: the front end and the rear end of the rotating shaft (10) are fixedly connected with pin shafts, two bearings are fixedly connected to the front side inner wall and the rear side inner wall of the square rod (2), and the inner rings of the bearings are fixedly sleeved with the outer sides of the corresponding pin shafts.
7. The transient electromagnetic sounding and receiving function main control apparatus of claim 1, wherein: the transient electromagnetic detection receiving main control device body (1) is a transient electromagnetic instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321118572.0U CN219795971U (en) | 2023-05-11 | 2023-05-11 | Main control device with transient electromagnetic detection and receiving functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321118572.0U CN219795971U (en) | 2023-05-11 | 2023-05-11 | Main control device with transient electromagnetic detection and receiving functions |
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| Publication Number | Publication Date |
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| CN219795971U true CN219795971U (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321118572.0U Active CN219795971U (en) | 2023-05-11 | 2023-05-11 | Main control device with transient electromagnetic detection and receiving functions |
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| Country | Link |
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| CN (1) | CN219795971U (en) |
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2023
- 2023-05-11 CN CN202321118572.0U patent/CN219795971U/en active Active
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