Micro-seismic detection device for anti-seismic detection and detection method thereof

Abstract

The invention provides a micro-seismic detection device for anti-seismic detection and a detection method thereof.The micro-seismic detection device for anti-seismic detection comprises a vibration source, a supporting structure, a platform and a control system, the supporting structure is arranged on the peripheral side of the vibration source with the vibration source as the center, and the platform is borne on the supporting structure in a liftable mode and is supported by the supporting structure in a constant supporting force mode; the top end of the vibration source is provided with a vibration membrane, the vibration membrane is connected to the bottom surface of the platform and used for driving the platform to vibrate, the top surface of the platform is used for placing a test body needing anti-seismic detection, and the platform is provided with a plurality of first sensors which are electrically connected with the control system so that the control system can receive vibration data fed back by the platform. According to the micro-seismic detection device for anti-seismic detection, a small-power vibration source can drive a large-weight object to simulate vibration, and the manufacturing cost is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of earthquake-resistant equipment technology, specifically to a microseismic detection device and its detection method for earthquake-resistant testing. Background Technology

[0002] Microseismic testing simulates real vibrations for seismic resistance testing. The amplitude of microseismic vibrations is generally within 20mm, and the vibration frequency is between 1-1000Hz. By using the seismic performance data of objects obtained through microseismic testing, it can be amplified to larger-scale vibrations to determine the object's seismic resistance performance under high-intensity vibrations such as earthquakes. During microseismic testing, the object is placed on a platform, and then the platform vibrates to determine the object's response to the vibration and observe the object's stability, such as whether it shakes violently or collapses, thereby testing the object's seismic resistance. Microseismic testing is widely used in industries such as construction, equipment manufacturing, and geological monitoring. Existing microseismic testing devices mainly consist of an integrated vibration source and platform, with the platform mounted on top of the vibration source. The vibrating element of the vibration source connects to and supports the platform. Therefore, the vibrating element needs to bear the weight of the object and have sufficient driving force to vibrate it. Such vibration testing devices have limited load-bearing capacity; for example, a 10-ton object requires a vibrating element capable of supporting 10 tons to vibrate. Currently, there are few devices in the industry capable of supporting heavy objects for vibration testing, especially those exceeding 10 tons, and these devices are also very expensive. For example, the vibration table and vibration testing device disclosed in CN202010606448.3 test by placing the object on a pressure-bearing platform. If a certain tonnage weight is placed on it, microseismic testing cannot be performed. Furthermore, the seismic testing equipment for buildings disclosed in CN202120784257 also uses a single body and cannot achieve high-frequency microseismic testing of large-tonnage objects.

[0003] In addition, for micro-vibration detection devices where the vibration source and platform are integrated, the vibration source is located below the center of the platform, and the size of the platform cannot be too large. Otherwise, if the center of gravity of the object being tested is not aligned with the vibration source, the micro-vibration detection device may collapse during vibration. Furthermore, for larger objects, if the platform is not large enough to accommodate them, it is impossible to conduct seismic tests on large objects. Summary of the Invention

[0004] In view of the above, it is necessary for the present invention to provide a micro-vibration detection device that can reduce costs and enable seismic testing of heavy objects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A micro-vibration detection device for seismic testing includes: a vibration source, a support structure, a platform, and a control system. The support structure is arranged around the vibration source, and the platform is supported on the support structure by a constant supporting force. The top of the vibration source has a vibration diaphragm connected to the bottom surface of the platform to drive the platform to vibrate. The top surface of the platform is for placing the test object to be tested for seismic resistance. The platform is equipped with a plurality of first sensors, which are electrically connected to the control system so that the control system can receive the vibration data fed back by the platform.

[0006] Furthermore, the support structure includes a support column, a cylinder, an air film, and a connector. The support column has a chamber, and an air source is connected to the chamber. The cylinder is installed at the top of the support column and includes an air pressure chamber with its opening end facing upward. The air pressure chamber is connected to the chamber. The air film is fixed at the opening end of the air pressure chamber. The connector is installed in the central area of ​​the upper surface of the air film. Pressure changes in the chamber cause the air film to vibrate and are transmitted to the connector.

[0007] Furthermore, the air pressure chamber is equipped with a telescopic guide column, which includes a sleeve with the open end facing upward and a lifting rod inserted into the sleeve. The sleeve is fixed at the bottom end of the air pressure chamber, the lower end of the lifting rod is inserted into the sleeve, and the top end extends upward to abut against the air film. An air hole is provided on the sleeve, which connects the sleeve to the air pressure chamber.

[0008] Furthermore, the air membrane is configured as a flexible air membrane, and a corrugated ring is formed on the air membrane. The connector is fixed at the center of the corrugated ring. The connector includes a connecting block and a connecting plate. The bottom surface of the connecting block is fixedly connected to the upper surface of the air membrane and is located inside the corrugated ring of the air membrane. The connecting plate is set at the top of the connecting block so that the platform can support it and be fixed to the connecting plate.

[0009] Furthermore, a third sensor is installed on the connecting plate to sense the position of the connecting plate, and the third sensor is electrically connected to the control system.

[0010] Furthermore, the vibration source includes a main body and an elastic frame for supporting the main body. The top of the main body is provided with a vibration mechanism, the top surface of the vibration mechanism is a vibration membrane, the elastic frame includes a side wall, the side wall is provided with an upper and lower double-layer structure, the upper plate and the lower plate are connected by an elastic element, and the upper layer is provided with a shaft hole. The main body is provided with a rotating shaft, which is inserted into the shaft hole to drive the main body to rotate.

[0011] Furthermore, it also includes a vibration source located on the outside of the platform, so that the vibration source can drive the platform to vibrate in the horizontal direction.

[0012] Furthermore, the present invention also provides a detection method for the aforementioned microseismic detection device for seismic testing. The detection method is as follows: when testing the seismic performance of the test object, Several second sensors are installed on the test object, and each second sensor is electrically connected to the control system. The test object is then installed on the platform. The accuracy of the platform's vibration feedback is calibrated to ensure that the collected data feedback is accurate. Vibration parameters are input into the control system, and the vibration data fed back by the first sensor on the platform is compared with the input vibration parameters. After the comparison, the platform's vibration is calibrated. Vibration tests are conducted on the test object. The second sensor on the test object feeds back the vibration data of the test object, which is compared with the input vibration parameters to analyze the seismic performance of the test object.

[0013] Furthermore, when performing seismic performance analysis, the vibration parameters are changed, and any time period within the vibration time is selected for seismic analysis.

[0014] Furthermore, a third sensor is provided on the support structure and electrically connected to the control system to sense changes in the support position. After the test object is replaced, the third sensor senses a change in the support position and feeds it back to the control system. The control system then issues a command to adjust the support force of the support structure so that the support position returns to its original equilibrium position.

[0015] The beneficial effects of this invention are as follows: The micro-vibration detection device for seismic testing provided by this invention uses a support structure to support the platform with a constant supporting force, thereby offsetting the weight of the platform and the test object. This enables a low-power vibration source to drive a large, heavy object to simulate vibration. The support structure also improves the platform's stability. Furthermore, the platform's size can be adjusted as needed to meet the requirements for vibration testing of large objects. In addition, the control system can receive vibration data from the platform and the test object in real time and control the vibration source to change the simulated vibration environment in real time, facilitating vibration analysis for any vibration environment and improving the accuracy of seismic testing. Attached Figure Description

[0016] Figure 1 A three-dimensional schematic diagram of a microseismic detection device for seismic testing; Figure 2 Exploded view of a microseismic detection device for seismic testing (control system not shown); Figure 3 This is a sectional view of the supporting structure; Figure 4 This is a perspective view of another embodiment of a microseismic detection device for seismic testing.

[0017] Explanation of reference numerals in the attached figures: 10. Vibration source; 11. Main body; 12. Elastic frame; 121. Side wall; 20. Support structure; 21. Support column; 211. Chamber; 22. Cylinder; 221. Air pressure chamber; 222. Pressure gauge; 223. Telescopic guide column; 2231. Air hole; 23. Air film; 24. Connector; 241. Connecting block; 242. Connecting plate; 30. Platform; 40. Test body; 101. First sensor; 102. Second sensor. Detailed Implementation

[0018] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0019] like Figure 1 As shown, this embodiment of the invention provides a micro-vibration detection device for seismic testing, including a vibration source 10, a support structure 20, a platform 30, and a control system. The vibration source 10 is commercially available and is commonly an electromagnetic vibrator. The vibration source 10 is placed on a horizontal plane. The support structure 20 is arranged around the vibration source 10. The platform 30 is located at the top of the vibration source 10 and the support structure 20 and is supported by the support structure 20. The bottom surface of the platform 30 is connected to the vibration source 10, and the top surface of the platform 30 is used to place the test object 40 to be tested for seismic resistance.

[0020] The vibration source 10 has a vibration diaphragm (not shown) at its top. The vibration diaphragm is connected to the bottom surface of the platform 30 to generate vibration, thereby applying vibration to the platform 30. The platform 30 then transmits the vibration to the test body 40 on the platform 30.

[0021] The support structure 20 maintains constant support for the platform 30 and the test object 40 placed on the platform 30, so that the platform 30 is as if it is suspended on the water surface. Its weight does not need to be supported by the vibration source 10. Thus, when the vibration source 10 vibrates, the platform 30 can be driven to vibrate slightly with a small driving force, realizing the vibration simulation experiment of a large weight object by the low-power output vibration source 10. For example, applying a force of 500 kg is enough to place a 10-ton weight on the platform 30 for a micro-vibration experiment.

[0022] The control system is used to collect data from the platform 30 and the test body 40 and to control the vibration of the vibration source 10. Specifically, the platform 30 is provided with a number of first sensors 101 and the test body 40 is provided with a number of second sensors 102. The first sensors 101 and the second sensors 102 are electrically connected to the control system so that the control system can receive vibration data fed back from the platform 30 and the test body 40, such as vibration amplitude, acceleration, frequency, etc.

[0023] The control system has a human-machine interface, such as a computer screen or control panel. The control system inputs simulated vibration parameters to the vibration source 10, such as different frequencies, accelerations, and displacements corresponding to different levels of vibration, to simulate the environment of earthquake-level vibration in order to test the seismic resistance of the test body 40.

[0024] When conducting seismic tests on the test body 40, the accuracy of the vibration feedback of the platform 30 must first be calibrated to ensure the accuracy of the collected data feedback. For example, if vibration parameters, such as acceleration of 100, are input into the control system, the vibration source 10 will perform vibration with the corresponding acceleration value. Considering the energy loss during vibration transmission, if the platform acceleration data fed back by the first sensor 101 on the platform 30 is 90, the vibration isolation rate can be calculated. Then, the platform data is calibrated. The calibration method can be through numerical compensation or structural adjustment. The compensation algorithm will not be described here. This ensures that the acceleration fed back by the platform 30 also reaches 100, thereby ensuring the accuracy of the data fed back by the platform 30.

[0025] After platform 30 is vibrated and calibrated, vibration testing is performed on test body 40. The second sensor 102 on test body 40 provides feedback on the acceleration of test body 40. For example, if the acceleration input in the control system is 100, the acceleration fed back on test body 40 is 10, which can be considered as test body 40 absorbing 90% of the vibration energy, indicating good seismic resistance, i.e., a vibration isolation rate of 90%. It is understandable that the more vibration energy a seismic-resistant structure absorbs, the better its seismic performance.

[0026] The micro-seismic detection device for seismic testing of this invention employs a control system that promptly feeds back vibration data from the platform 30 and the test body 40 to the control system. The control system then issues corresponding control commands to the vibration source 10, such as adjusting the vibration frequency, vibration amplitude, and vibration acceleration. Different vibration environments can be switched in real time. Through vibration, vibration waveforms within the corresponding vibration time period can be obtained, such as sine waves or chaotic composite waveforms. When performing seismic performance analysis, any time period within the vibration time can be selected for seismic analysis, such as selecting 10 minutes for analysis. Compared to traditional micro-seismic detection devices, where data acquisition and vibration source control are set up as two separate execution systems rather than under the same control system, and rapid switching of vibration environments is not possible, the overall accuracy of vibration analysis is relatively low. The micro-seismic detection device for seismic testing provided by this invention can greatly improve the accuracy of seismic performance analysis.

[0027] Furthermore, the micro-vibration testing device for seismic testing of the present invention maintains constant support for the platform 30 and the test object 40 placed on the platform 30 through the support structure 20. This allows a low-power vibration source 10 to push heavy objects for vibration testing without the need for the vibration source 10 to support the weight of the object. This makes the testing device an open-loop structure, requiring only a sufficiently large site and a sufficient number of support structures 20. Theoretically, micro-vibration experiments can be conducted on an infinitely large area. Compared to traditional vibration testing devices where the platform and vibration source are integrated, the vibration load is limited and can be considered an improvement on a closed-loop structure. The larger the test object, the greater the corresponding support force, the more complex the structure, and the higher the cost. Moreover, the support structure 20 supports the four corners of the platform 30, ensuring the stability of the platform 30. The dimensions of the platform 30 are designed entirely according to the testing requirements, fully accommodating vibration testing of large, heavy objects. Secondly, the support structure 20 can be equipped with a lifting guide structure to cooperate with the platform 30, preventing the platform 30 from collapsing during vibration.

[0028] Understandably, before the test, the support structure 20 can adjust the balance of the support force according to the weight of the platform 30 and the test body 40 placed on the platform 30, so as to maintain the support structure 20 in a constant position. For example, when a heavy test body 40 is placed, the balance force of the support structure 20 is increased, and when a lighter test body 40 is placed, the balance force in the support structure 20 is reduced.

[0029] After providing the principle of the above-mentioned microseismic detection, the present invention further elaborates on the structure of the microseismic detection device for seismic detection and provides a support structure 20 for maintaining the balance of gravity.

[0030] Please see Figure 2 The vibration source 10 includes a main body 11 and an elastic frame 12 for supporting the main body 11. The main body 11 is cylindrical and has a vibration mechanism at the top to emit vibrations of a set frequency and intensity. The top surface of the vibration mechanism is a vibration diaphragm, which is connected to the bottom surface of the platform 30. Two opposing rotating shafts are also fixed on the outer circumference of the main body 11 so that the main body 11 can be rotatably mounted on the elastic frame 12.

[0031] The elastic frame 12 includes two opposing side walls 121 and a flat plate connected to the bottom of the two side walls 121. The main body 11 is located between the two side walls 121. The side walls 121 have an upper and lower double-layer structure, with the upper and lower plates connected by an elastic element. The upper plate has a shaft hole for the rotating shaft of the main body 11 to be inserted into the shaft hole. When the main body 11 vibrates, the reaction force generated is transmitted to the elastic element through the upper plate. The elastic element absorbs the vibration, preventing it from being transmitted to any position other than the top of the main body 11. The two ends of the flat plate are fixed to the two side walls 121 respectively, so as to improve the stability of the side walls 121 in supporting the main body 11.

[0032] like Figure 3 As shown, multiple support structures 20 are provided and are located at the four corners of the perimeter of the platform 30 to share the weight of the platform 30. The support structure 20 includes a support column 21, a cylinder 22, an air film 23, and a connector 24. The support column 21 has a chamber 211, which is connected to an air supply source (not shown). The air supply source fills the chamber 211 with gas, so that the chamber 211 has a constant pressure. The cylinder 22 is installed at the top of the support column 21 and includes a pressure chamber 221 with the opening end facing upward. The pressure chamber 221 is connected to the chamber 211 through an air pipe so that the gas in the chamber 211 can enter the pressure chamber 221 and the gas pressure in the pressure chamber 221 can be balanced by increasing or decreasing the gas pressure in the chamber 211. The air film 23 is a flexible air film, which is fixed to the opening end of the pressure chamber 221 to seal the pressure chamber 221 so that the air film 23 can be pushed when the gas pressure in the pressure chamber 221 changes. Specifically, a wave ring is formed on the air film 23 so that the middle part of the air film 23 can rise and fall smoothly. The connector 24 is installed in the central area of ​​the upper surface of the air film 23. When the air film 23 rises or falls, it drives the connector 24 to rise or fall.

[0033] The connector 24 includes a connecting block 241 and a connecting plate 242. The connecting block 241 is a frame with an open top, and its bottom surface is fixedly connected to the upper surface of the air film 23 and located within the corrugated ring of the air film 23. The connecting plate 242 can be fixedly connected or ball joint connected to the top of the connecting block 241. The platform 30 is supported on the connecting plate 242, which is equivalent to air buoyancy support. When the platform 30 vibrates slightly, it will cause the air film 23 to vibrate slightly as well. Since the amplitude of the vibration is very small, within 10mm, it will not affect the gas pressure in the air pressure chamber 221. Therefore, it can maintain stable and constant support for the platform 30 and the test body 40 on the platform 30. If the test body 40 is replaced, such as a heavy test body, it is only necessary to inflate the air pressure chamber 221 to increase the support pressure.

[0034] Furthermore, a third sensor (not shown) is installed on the connecting plate 242 to sense the position of the connecting plate 242. The third sensor is electrically connected to the control system. After the test body 40 is replaced, the gravity increases and the connecting plate 242 senses that the balance position has shifted downward. It then feeds back to the control system, which issues an inflation command, causing the air pressure chamber 221 to increase and the connecting plate 242 to return to the balance position.

[0035] Furthermore, the volume of the pressure chamber 221 is smaller than that of the chamber 211. This is beneficial because the pressure deviation caused by rapid changes in gas pressure within the chamber 211 can be compensated for by the pressure chamber 221 when balancing the pressure within the chamber 211, thus improving the accuracy of gas pressure regulation. A pressure gauge 222 is also installed on the cylinder 22 to display the gas pressure within the pressure chamber 221.

[0036] Furthermore, the pneumatic chamber 221 is equipped with a telescopic guide post 223 to support the air film 23 in a stable horizontal position for lifting and lowering. The telescopic guide post 223 includes a sleeve with its open end facing upward and a lifting rod inserted into the sleeve. The sleeve is fixed to the bottom end of the pneumatic chamber 221, the lower end of the lifting rod is inserted into the sleeve, and the top end extends upward to abut against the air film 23. The sleeve is provided with an air hole 2231, which connects the sleeve and the pneumatic chamber 221, allowing pressurized gas in the pneumatic chamber 221 to enter the sleeve and push the lifting rod upward to abut against the air film 23. At the same time, the gas pressure in the sleeve is balanced with the gas pressure in the pneumatic chamber 221. When the gas pressure in the pneumatic chamber 221 changes, the gas pressure in the sleeve changes synchronously. The lifting rod only provides a guiding function for the air film 23.

[0037] Furthermore, the present invention provides another implementation method for providing vibration force from a vibration source, such as... Figure 4 As shown, when simulating horizontal vibration, a vibration source 10 is further set on the outside of the platform 30, and the support structure 20 is supported at equal intervals below the platform 30. The vibration data of the vibration source 10 is set by the control system, and the vibration source 10 is controlled to drive the platform 30 to vibrate.

[0038] In this embodiment, the vibration source 10 can be set as one or more as needed, and the main body 11 of the vibration source 10 rotates relative to the elastic frame 12 so that the vibration mechanism of the main body 11 is connected to the platform 30 for transmission. The vibration mechanism is activated to push the side of the platform 30 and drive the platform 30 to vibrate.

[0039] Furthermore, the support structure 20 is fixed in front of the vibration mechanism of the main body 11. The bottom surface of the platform 30 can be slidably connected to the top of the support structure 20, or the platform 30 can be fixed to the top of the support structure 20. Then the connecting block 241 of the connector 24 is slidably connected to the connecting plate 242 so that when the vibration source 10 drives the platform 30 to vibrate, the platform 30 drives the connecting plate 242 to move against the connecting block 241.

[0040] After the above installation is completed, the test body 40 is fixed on the platform 30. Vibration data is then input into the control system, causing the main body 11 of the vibration source 10 to vibrate, pushing the platform 30 to vibrate horizontally. The support structure 20 supports the platform 30 in mid-air, reducing friction during vibration displacement. The first sensor 101 installed on the platform 30 detects the vibration data generated by the platform 30 under the action of the main body 11 and feeds the vibration data back to the control system. The vibration data from the first sensor 101 is compared with the input vibration data to ensure accurate feedback of the platform 30's vibration data and improve the realism of the vibration environment simulation. The second sensor 102 installed on the test body 40 detects the vibration data of the test body 40 and transmits it back to the control system. The vibration data from the second sensor 102 is compared with the vibration data from the platform 30 to determine the horizontal vibration resistance of the test body 40.

[0041] In summary, the micro-vibration detection device for seismic testing of the present invention, by setting up a support structure 20 to support the platform 30, offsets the weight of the platform 30 and the test body 40, and realizes the simulation of vibration of a heavy object driven by a low-power vibration source 10. This can reduce costs and enable seismic testing of heavy objects. In addition, by installing the vibration source 10 and the support structure 20 in different ways, multi-angle simulated vibration experiments can be realized, which greatly improves the applicability of the vibration platform.

[0042] The embodiments described above merely illustrate implementation methods of the present invention and should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A microseismic detection device for seismic testing, characterized in that, include: The vibration source (10), the support structure (20), the platform (30) and the control system are arranged around the vibration source (10). The platform (30) is supported on the support structure (20) in a lifting manner and is supported by the constant support force of the support structure (20). The top of the vibration source (10) has a vibration membrane, which is connected to the bottom surface of the platform (30) to drive the platform (30) to vibrate. The top surface of the platform (30) is used to place the test body (40) that needs to be tested for vibration resistance. The platform (30) is provided with several first sensors (101). The first sensors (101) are electrically connected to the control system so that the control system can receive the vibration data fed back by the platform (30).

2. The microseismic detection device for seismic testing according to claim 1, characterized in that, The support structure (20) includes a support column (21), a cylinder (22), an air film (23), and a connector (24). The support column (21) has a chamber (211) for communication between the air source and the chamber (211). The cylinder (22) is installed at the top of the support column (21) and includes an air pressure chamber (221) with the opening end facing upward. The air pressure chamber (221) is connected to the chamber (211). The air film (23) is fixed at the opening end of the air pressure chamber (221). The connector (24) is installed in the central area of ​​the upper surface of the air film (23). The pressure change in the chamber (211) causes the air film (23) to vibrate and is transmitted to the connector (24).

3. The microseismic detection device for seismic testing according to claim 2, characterized in that, The air pressure chamber (221) is equipped with a telescopic guide post (223). The telescopic guide post (223) includes a sleeve with the open end facing upward and a lifting rod inserted into the sleeve. The sleeve is fixed at the bottom end of the air pressure chamber (221). The lower end of the lifting rod is inserted into the sleeve, and the top end extends upward to abut against the air film (23). An air hole (2231) is provided on the sleeve, and the air hole (2231) connects the sleeve and the air pressure chamber (221).

4. The microseismic detection device for seismic testing according to claim 2, characterized in that, The air membrane (23) is a flexible air membrane, and a wave ring is formed on the air membrane (23). The connector (24) is fixed at the center of the wave ring. The connector (24) includes a connecting block (241) and a connecting plate (242). The bottom surface of the connecting block (241) is fixedly connected to the upper surface of the air membrane (23) and located inside the wave ring of the air membrane (23). The connecting plate (242) is set at the top of the connecting block (241) so that the platform (30) can be supported and fixed on the connecting plate (242).

5. The microseismic detection device for seismic testing according to claim 4, characterized in that, A third sensor is installed on the connecting plate (242) to sense the position of the connecting plate (242), and the third sensor is electrically connected to the control system.

6. The microseismic detection device for seismic testing according to claim 1, characterized in that, The vibration source (10) includes a main body (11) and an elastic frame (12) for supporting the main body (11). The top of the main body (11) is provided with a vibration mechanism, the top surface of which is a vibration membrane. The elastic frame (12) includes a side wall (121), which is a double-layer structure with upper and lower layers. The upper and lower layers are connected by an elastic element, and the upper layer has a shaft hole. The main body (11) is provided with a rotating shaft, which is inserted into the shaft hole to drive the main body (11) to rotate.

7. The microseismic detection device for seismic testing according to claim 1, characterized in that, It also includes a vibration source (10) located on the outside of the platform (30) so that the vibration source (10) can drive the platform (30) to vibrate in the horizontal direction.

8. A detection method for a microseismic detection device for seismic testing according to any one of claims 1-7, characterized in that, When testing the seismic performance of the test body (40), Several second sensors (102) are installed on the test body (40), and the second sensors (102) are electrically connected to the control system. The test body (40) is then installed on the platform (30). The accuracy of the vibration feedback of the platform (30) is calibrated to ensure that the collected data feedback is accurate. The vibration parameters are input into the control system. The vibration data fed back by the first sensor (101) on the platform (30) is compared with the input vibration parameters. After comparison, the vibration of the platform (30) is calibrated. Vibration test is performed on the test body (40). The second sensor (102) on the test body (40) feeds back the vibration data of the test body (40), compares it with the input vibration parameters, and analyzes the seismic performance of the test body (40).

9. A detection method for a microseismic detection device for seismic testing according to claim 8, characterized in that, When performing seismic performance analysis, the vibration parameters are changed, and any time period of the vibration time is selected for seismic analysis.

10. A detection method for a microseismic detection device for seismic testing according to claim 8, characterized in that, A third sensor is provided on the support structure (20) and electrically connected to the control system. It is used to sense changes in the support position. After the test body (40) is replaced, the third sensor senses that the support position has changed and feeds back to the control system. The control system issues a command to adjust the support force of the support structure (20) so that the support position returns to the original equilibrium position.

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