Method and system for processing electromagnetic leakage interference of electromagnetic vibration table
By monitoring the electromagnetic signal of the electromagnetic vibration table in real time, identifying the interference frequency and installing filters, the problem of electromagnetic leakage interference from the electromagnetic vibration table is solved, and high-precision, damage-free vibration testing is achieved.
Patent Information
- Application Number
- CN202411475280.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-01-21
AI Technical Summary
In the prior art, when dealing with electromagnetic leakage interference of electromagnetic vibration tables, commonly used shielding methods will affect the functional performance test of the sample and may cause damage to the sample in a vibrating environment.
Through real-time monitoring of the electromagnetic signals generated by the electromagnetic vibration table, identify the interference frequency range, select or design appropriate filters, and install filters on power lines and signal lines to eliminate or reduce electromagnetic interference.
This method can effectively reduce or eliminate electromagnetic interference without affecting the performance of the sample, improve the accuracy and reliability of the test, and avoid sample damage.
Smart Images

Figure HDA0005095919060000011 
Figure HDA0005095919060000021
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of eliminating electromagnetic interference, and in particular relates to a method and system for processing electromagnetic leakage interference of an electromagnetic vibration table. Background Art
[0002] The electromagnetic vibration test bench currently used in the laboratory works by passing an alternating current through the moving coil, which generates a magnetic force that interacts with the internal fixed magnet to achieve vibration of the table body at a specific frequency, simulating the vibration environment that the sample is actually subjected to during work. Because of the mechanism of action of the electromagnetic vibration table, electromagnetic signals will inevitably be generated. The electromagnetic shielding method of the vibration table itself ensures that its electromagnetic signals do not exceed the regulatory requirements. However, for some magnetically sensitive samples, they will still be affected by magnetic interference during the test, resulting in inaccurate test results.
[0003] For such problems, the commonly used solution is to shield the interfered samples through shielding nets, etc. to protect them from electromagnetic interference. However, during the vibration test, the shielding method affects the functional performance test of the test samples during the test, and causes the test samples to be damaged due to collision or friction with the shielding material in a vibration environment. This method uses filtering to clarify the interference frequency range, and then add filters of corresponding frequencies to the power amplifier power line, signal transmission line, etc., to eliminate the electromagnetic interference generated by the power supply or signal light itself, thereby fundamentally reducing or eliminating the electromagnetic interference problem.
[0004] Through the above analysis, the problems and defects of the prior art are as follows:
[0005] The commonly used treatment method is to adopt shielding, which affects the functional performance test of the test sample during the test process and causes the test sample to be damaged due to collision or friction with the shielding material in a vibration environment. Summary of the invention
[0006] In view of the problems existing in the prior art, the present invention provides a method and system for processing electromagnetic leakage interference of an electromagnetic vibration table.
[0007] The present invention is implemented as follows: a method for processing electromagnetic leakage interference of an electromagnetic vibration table, comprising:
[0008] Step 1: Start the signal acquisition and analysis module to monitor the electromagnetic signals generated by the electromagnetic vibration table in real time during operation and identify the interference frequency range;
[0009] Step 2: Select or design a suitable filter based on the identified frequency range through the filter selection and design module;
[0010] Step 3: Using the filtering processing unit, filters are installed on necessary power lines and signal lines to implement interference suppression measures;
[0011] Step 4: Run the test and optimization module to evaluate the filtering effect, adjust the filter configuration as needed, and optimize the electromagnetic interference suppression effect;
[0012] Step 5: Continuously execute the monitoring and adjustment module to adapt to changes in the experimental environment and ensure long-term and effective electromagnetic interference control.
[0013] Furthermore, in step three, a filter is installed on the power supply line of the power amplifier of the electromagnetic vibration table to eliminate the electromagnetic interference generated by the power supply itself, and a filter is installed on the signal transmission line to eliminate the electromagnetic interference generated during the signal transmission process.
[0014] Furthermore, in step four, after the filter is installed, electromagnetic signals are collected and analyzed again to verify whether the interference signal has been effectively reduced or eliminated; according to the test results, the parameters or position of the filter are adjusted until a satisfactory electromagnetic interference suppression effect is achieved.
[0015] Another object of the present invention is to provide a system for processing electromagnetic leakage interference of an electromagnetic vibration table, the system for processing electromagnetic leakage interference of an electromagnetic vibration table comprising:
[0016] The signal acquisition and analysis module is used to collect the electromagnetic signals generated by the electromagnetic vibration table in real time and perform preliminary analysis to identify the interference frequency range;
[0017] A filter selection and design module is used to automatically select or design a suitable filter based on the identified interference frequency range;
[0018] A filtering processing module is used to filter the power supply line and signal transmission line of the electromagnetic vibration table to eliminate or reduce electromagnetic interference;
[0019] The test and optimization module is used to test the filtering effect, adjust the parameters or position of the filter according to the results, and optimize the electromagnetic interference suppression effect;
[0020] The monitoring and adjustment module is used to continuously monitor the electromagnetic environment and adjust the filtering strategy according to changes in actual applications.
[0021] Furthermore, the signal acquisition and analysis module includes:
[0022] An electromagnetic field detector or sensor, fixed near the electromagnetic vibration table, is used to capture electromagnetic signals;
[0023] The spectrum analyzer, connected to the detector, analyzes the collected electromagnetic signals and identifies the interference frequencies.
[0024] Furthermore, the filter selection and design module includes:
[0025] Database, storing parameters and applicable frequency ranges of various types of filters;
[0026] Design software that recommends or designs filter solutions based on the identified interference frequencies and database information. Different types of filters (such as low-pass, high-pass, band-pass, and band-stop filters) are required for different interference frequencies.
[0027] Furthermore, the filtering processing module includes:
[0028] filter components, configured according to a selected or designed solution;
[0029] Mounting kit for mounting filters on power and signal lines.
[0030] Furthermore, the testing and optimization module includes:
[0031] A secondary signal acquisition device, used for acquiring the filtered electromagnetic signal;
[0032] Analysis software to evaluate filtering effects and provide adjustment suggestions.
[0033] Furthermore, the monitoring and adjustment module includes:
[0034] Monitor equipment in real time and continuously track changes in the electromagnetic environment.
[0035] The adjustment control unit automatically adjusts the filter configuration according to the monitoring results or reminds the operator to make manual adjustments.
[0036] Another object of the present invention is to provide a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for processing electromagnetic leakage interference of an electromagnetic vibration table.
[0037] Another object of the present invention is to provide a computer-readable storage medium storing a computer program, which, when executed by a processor, enables the processor to execute the steps of the method for processing electromagnetic leakage interference of an electromagnetic vibration table.
[0038] Another object of the present invention is to provide an information data processing terminal, which is used to implement the system for processing electromagnetic leakage interference of an electromagnetic vibration table.
[0039] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:
[0040] First, some creative technical effects are achieved after solving the technical problems existing in the above-mentioned prior art.
[0041] No interference with the test process: Compared with the physical shielding method, the filtering method does not affect the functional performance test of the tested sample, nor does it increase the risk of sample damage due to collision or friction.
[0042] (1) Highly targeted: By accurately identifying the interference frequency and using the corresponding filter, specific electromagnetic interference can be more effectively suppressed, improving the accuracy and reliability of the overall test.
[0043] (2) Flexibility and adjustability: The filtering scheme can be flexibly adjusted according to test requirements and environmental changes, providing better adaptability.
[0044] The present invention uses filtering to process electromagnetic leakage interference of the electromagnetic vibration table, which can effectively reduce or eliminate the electromagnetic interference problem without affecting the performance of the test equipment and samples. This method provides a more accurate, effective and flexible solution compared to traditional physical shielding, and is suitable for high-precision vibration testing of magnetically sensitive samples.
[0045] Second, the significant technical progress of the method provided by the present invention in dealing with electromagnetic leakage interference of electromagnetic vibration tables is mainly reflected in the following aspects:
[0046] 1) Real-time monitoring and frequency identification technology: By starting the signal acquisition and analysis module, this method can monitor the electromagnetic signals generated by the electromagnetic vibration table in real time during operation and accurately identify the interference frequency range. The introduction of this real-time monitoring and frequency identification technology greatly improves the accuracy and timeliness of electromagnetic interference processing, and provides reliable data support for subsequent filter selection and design.
[0047] 2) Intelligent filter selection and design: Based on the identified frequency range, through the filter selection and design module, this method can automatically select or design a suitable filter. This intelligent filter selection and design method avoids the shortcomings of traditional methods that rely on manual experience and trial and error, and improves the matching degree and filtering effect of the filter.
[0048] 3) Accuracy and flexibility of filtering: Using the filtering processing unit, filters are installed on the necessary power lines and signal lines to implement interference suppression measures. This method not only ensures the accuracy of filtering, but also has high flexibility. It can select appropriate filtering methods according to different interference frequency ranges to achieve the best electromagnetic interference suppression effect.
[0049] 4) Effect evaluation and optimization: By running the test and optimization module, the method can evaluate the filtering effect and adjust the filter configuration as needed to optimize the electromagnetic interference suppression effect. This closed-loop optimization mechanism enables the electromagnetic interference treatment method to be continuously improved to adapt to different experimental environments and changes in requirements.
[0050] 5) Long-term monitoring and adaptive adjustment: Continuously execute the monitoring and adjustment module to adapt to changes in the experimental environment and ensure long-term effective electromagnetic interference control. This long-term monitoring and adaptive adjustment capability enables the method to cope with various changes in the experimental environment and maintain the stability and effectiveness of electromagnetic interference control.
[0051] In summary, the method provided by the present invention significantly improves the effect and efficiency of processing electromagnetic leakage interference of electromagnetic vibration tables by introducing technical means such as real-time monitoring and frequency recognition technology, intelligent filter selection and design, precise filtering processing, effect evaluation and optimization, and long-term monitoring and adaptive adjustment, thus bringing important technological progress to the field of electromagnetic interference control.
[0052] Third, the technical solution of the present invention effectively solves the problem of electromagnetic leakage interference in the existing electromagnetic vibration table system in industrial applications. In the prior art, during the operation of the electromagnetic vibration table, the electromagnetic interference generated by it easily affects the normal operation of surrounding equipment, and even causes serious problems such as signal distortion and system malfunction. The present invention significantly improves the suppression effect of electromagnetic interference through a series of measures such as real-time monitoring, filtering suppression, and dynamic optimization, and realizes the stable operation of the system.
[0053] First, the present invention solves the problem of inaccurate identification of the frequency range of electromagnetic interference in the prior art. Through real-time monitoring of the signal acquisition and analysis module, the frequency range of interference can be accurately identified to ensure that the suppression measures can be targeted. Compared with the traditional method that relies on experience or fixed frequency processing, the present invention realizes accurate identification of different interference sources and improves the flexibility and accuracy of electromagnetic interference suppression.
[0054] Secondly, the present invention has made significant progress in filter design and selection. By introducing the filter selection and design module, it is possible to select or customize a suitable filter according to the specific interference frequency band, effectively solving the limitation of the prior art that over-relies on a single filter design and is difficult to cope with complex electromagnetic environments. The customized filter design not only improves the suppression effect, but also enhances the adaptability of the system, ensuring that it can operate effectively in different electromagnetic environments.
[0055] In addition, the present invention also realizes dynamic evaluation and adjustment of the filtering effect through the test and optimization module, overcoming the problem of difficulty in continuous optimization in traditional systems. In the prior art, once the filter is installed, it is usually difficult to adjust and optimize. However, the present invention can optimize the filtering configuration according to environmental changes at any time through real-time monitoring and automatic adjustment mechanism to ensure the long-term effectiveness of interference suppression.
[0056] In summary, the present invention not only solves the problem of electromagnetic leakage interference of the electromagnetic vibration table in the prior art, but also significantly improves the electromagnetic compatibility and stability of the system through real-time monitoring and dynamic optimization technical means, and promotes the reliability and technological progress of the electromagnetic vibration table in practical applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0057] Figure 1 is a flow chart of a method for processing electromagnetic leakage interference of an electromagnetic vibration table provided by an embodiment of the present invention;
[0058] Figure 2 It is a system module diagram for processing electromagnetic leakage interference of an electromagnetic vibration table provided in an embodiment of the present invention. DETAILED DESCRIPTION
[0059] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0060] Example 1: Electromagnetic Interference Treatment in Vibration Testing of Automotive Components
[0061] Background: During the vibration test of automobile parts, electromagnetic vibration tables are often used to simulate different road conditions. However, during the test, electromagnetic vibration tables generate electromagnetic interference, which affects the accuracy of the test results.
[0062] 1) Start the signal acquisition and analysis module: Before the test begins, start the signal acquisition and analysis module to monitor the electromagnetic signals generated by the electromagnetic vibration table in real time when simulating different road conditions, and identify the main interference frequency range.
[0063] 2) Through the filter selection and design module: According to the identified interference frequency range, select an existing filter or design a new filter to adapt to the specific interference frequency, such as using a bandpass filter to reduce interference in a specific frequency band.
[0064] 3) Utilize filtering processing units: Install selected filters on the power lines of the electromagnetic vibration table and the signal lines of the test equipment to reduce the impact of electromagnetic interference on the test results.
[0065] 4) Run the test and optimization module: After completing the filter installation, perform a vibration test, evaluate the filtering effect through data analysis, and if necessary, adjust the filter configuration or parameters to optimize the electromagnetic interference suppression effect.
[0066] 5) Continuous monitoring and adjustment module: Continuously perform monitoring and adjustment in subsequent tests, and adjust the filter configuration in time according to changes in the test environment to ensure long-term and effective electromagnetic interference control.
[0067] Example 2: Electromagnetic Interference Processing in Vibration Durability Testing of Aerospace Equipment
[0068] Background: In the vibration durability test of aerospace equipment, electromagnetic vibration tables are used to simulate the vibration environment during flight. Due to the high requirements of the test, the control of electromagnetic interference is particularly important.
[0069] 1) Start the signal acquisition and analysis module: Before the test begins, monitor the electromagnetic signals generated during the operation of the electromagnetic vibration table in real time to accurately identify the frequency range of the interference.
[0070] 2) Through the filter selection and design module: According to the identified frequency range, select high-performance filters or design customized filters for specific interference frequencies to ensure effective interference suppression.
[0071] 3) Utilize filtering processing units: Install selected filters on power lines and signal lines of various test instruments, especially for those sensitive measuring equipment, to ensure that interference is minimized.
[0072] 4) Run the test and optimization module: After filtering, perform a series of vibration durability tests to evaluate the filtering effect, and adjust the filter configuration or redesign the filter accordingly until the best interference suppression effect is achieved.
[0073] 5) Continuous execution of monitoring and adjustment module: Continuously monitor electromagnetic signals during and after the test, and adjust the filter configuration in a timely manner according to changes in equipment performance and environmental changes to ensure the long-term effectiveness of electromagnetic interference control.
[0074] These two embodiments fully demonstrate the applicability and effectiveness of the method of the present invention in different application scenarios, and through multi-step comprehensive measures, effective processing of electromagnetic leakage interference of the electromagnetic vibration table is achieved.
[0075] like Figure 1 As shown, the method for processing electromagnetic leakage interference of an electromagnetic vibration table provided by an embodiment of the present invention includes the following steps:
[0076] S101, start the signal acquisition and analysis module, monitor the electromagnetic signals generated by the electromagnetic vibration table in real time during operation, and identify the interference frequency range;
[0077] S102, selecting or designing a suitable filter based on the identified frequency range through a filter selection and design module;
[0078] S103, using a filtering processing unit, installing filters on necessary power lines and signal lines to perform interference suppression measures;
[0079] S104, running the test and optimization module, evaluating the filtering effect, adjusting the filter configuration as needed, and optimizing the electromagnetic interference suppression effect;
[0080] S105, continuously executes the monitoring and adjustment module to adapt to changes in the experimental environment and ensure long-term and effective electromagnetic interference control.
[0081] The method for processing electromagnetic leakage interference of an electromagnetic vibration table provided in an embodiment of the present invention first starts the signal acquisition and analysis module to monitor the electromagnetic signal generated by the electromagnetic vibration table in real time during operation. The core of this step is to identify the electromagnetic interference frequency range generated by the electromagnetic vibration table by collecting and analyzing the signal. Through this real-time monitoring, the frequency band that may cause interference can be accurately captured, laying the foundation for subsequent interference suppression.
[0082] Next, the system starts the filter selection and design module based on the identified interference frequency range. This step selects or designs a suitable filter to process the specific interference frequency band by analyzing the specific interference frequency band. The filter design can be customized according to different interference strengths and frequency characteristics to ensure that it can effectively suppress electromagnetic interference signals in a specific frequency band, thereby ensuring the stability and anti-interference ability of the system.
[0083] The third step is to use the filter processing unit to install the designed filter on the necessary power lines and signal lines. By installing the filter, the electromagnetic interference signal within a specific frequency range can be effectively filtered out and interference suppression measures can be implemented. This process can select the appropriate installation location and filter type according to actual needs to ensure that the interference signal is suppressed to the lowest level during transmission and ensure the electromagnetic compatibility of the electromagnetic vibration table and its surrounding environment.
[0084] Finally, the system starts the test and optimization module to evaluate the filtering effect and make necessary adjustments to the filter configuration based on the test results to further optimize the electromagnetic interference suppression effect. At the same time, the system will continue to run the monitoring and adjustment module to automatically adjust the filter configuration as the experimental environment changes, ensuring that a good electromagnetic interference control effect can be maintained in long-term operation.
[0085] In step three provided in an embodiment of the present invention, a filter is installed on the power line of the power amplifier of the electromagnetic vibration table to eliminate the electromagnetic interference generated by the power supply itself; and a filter is installed on the signal transmission line to eliminate the electromagnetic interference generated during the signal transmission process.
[0086] In step 4 provided in the embodiment of the present invention, after the filter is installed, electromagnetic signals are collected and analyzed again to verify whether the interference signal has been effectively reduced or eliminated; according to the test results, the parameters or position of the filter are adjusted until a satisfactory electromagnetic interference suppression effect is achieved.
[0087] like Figure 2 As shown, the system for processing electromagnetic leakage interference of an electromagnetic vibration table provided by an embodiment of the present invention includes:
[0088] The signal acquisition and analysis module is used to collect the electromagnetic signals generated by the electromagnetic vibration table in real time and perform preliminary analysis to identify the interference frequency range;
[0089] A filter selection and design module is used to automatically select or design a suitable filter based on the identified interference frequency range;
[0090] A filtering processing module is used to filter the power supply line and signal transmission line of the electromagnetic vibration table to eliminate or reduce electromagnetic interference;
[0091] The test and optimization module is used to test the filtering effect, adjust the parameters or position of the filter according to the results, and optimize the electromagnetic interference suppression effect;
[0092] The monitoring and adjustment module is used to continuously monitor the electromagnetic environment and adjust the filtering strategy according to changes in actual applications.
[0093] The signal acquisition and analysis module provided by the embodiment of the present invention includes:
[0094] An electromagnetic field detector or sensor, fixed near the electromagnetic vibration table, is used to capture electromagnetic signals;
[0095] The spectrum analyzer, connected to the detector, analyzes the collected electromagnetic signals and identifies the interference frequencies.
[0096] The system for processing electromagnetic leakage interference of an electromagnetic vibration table provided in an embodiment of the present invention suppresses and optimizes electromagnetic interference through the collaborative work of multiple modules. First, the signal acquisition and analysis module is the starting point of the entire system. The module includes electromagnetic field detectors or sensors, which are fixed near the electromagnetic vibration table and are used to capture the electromagnetic signals generated by the electromagnetic vibration table in real time when it is running. These captured signals are transmitted to the spectrum analyzer, which performs a preliminary analysis of the signals and identifies the interference frequency range to provide data support for subsequent filtering processing.
[0097] Secondly, the filter selection and design module automatically selects or designs the appropriate filter based on the interference frequency information obtained from the signal acquisition and analysis module. This module relies on the built-in filter database and design software to select the most suitable filter type (such as low-pass, high-pass, band-pass or band-stop filter) for different interference frequency ranges. Through this automated selection process, the system can quickly respond to the characteristics of the interference signal and ensure that the filter can effectively suppress electromagnetic interference in a specific frequency band.
[0098] Next, the filter processing module performs actual filtering according to the solution provided by the filter selection and design module. The filter processing module mainly filters the power supply line and signal transmission line of the electromagnetic vibration table, and eliminates or reduces electromagnetic interference by installing filters at these key locations. The function of the filter is to filter out interference signals within a specific frequency range to ensure that the impact of electromagnetic leakage on the system and its peripheral equipment is minimized, thereby improving the electromagnetic compatibility and stability of the system.
[0099] Finally, the system continuously optimizes the interference suppression effect through the test and optimization module and the monitoring and adjustment module. The test and optimization module detects the electromagnetic signal after filtering through the secondary signal acquisition device, and evaluates the filtering effect through the analysis software. If the suppression effect is found to be poor, the system will automatically adjust the parameters or position of the filter according to the evaluation results to optimize the effect. At the same time, the monitoring and adjustment module monitors the electromagnetic environment in real time, and can adjust the filtering strategy according to changes in the application environment to ensure the long-term stable operation of the system and maintain efficient electromagnetic interference suppression capabilities.
[0100] The filter selection and design module provided by the embodiment of the present invention includes:
[0101] Database, storing parameters and applicable frequency ranges of various types of filters;
[0102] Design software that recommends or designs filter solutions based on the identified interference frequencies and database information. Different types of filters (such as low-pass, high-pass, band-pass, and band-stop filters) are required for different interference frequencies.
[0103] The filtering processing module provided by the embodiment of the present invention includes:
[0104] filter components, configured according to a selected or designed solution;
[0105] Mounting kit for mounting filters on power and signal lines.
[0106] The test and optimization module provided by the embodiment of the present invention includes:
[0107] A secondary signal acquisition device, used for acquiring the filtered electromagnetic signal;
[0108] Analysis software to evaluate filtering effects and provide adjustment suggestions.
[0109] The monitoring and adjustment module provided in the embodiment of the present invention includes:
[0110] Monitor equipment in real time and continuously track changes in the electromagnetic environment.
[0111] The adjustment control unit automatically adjusts the filter configuration according to the monitoring results or reminds the operator to make manual adjustments.
[0112] The signal acquisition and analysis module provided in the embodiment of the present invention mainly includes an electromagnetic field detector or sensor and a spectrum analyzer. The electromagnetic field detector or sensor is fixed near the electromagnetic vibration table and can capture the electromagnetic signals generated during the operation of the vibration table. The captured signals are transmitted to the spectrum analyzer, which performs spectrum analysis on these signals to identify the frequency range of the interference signal. This step lays the foundation for subsequent filtering processing, ensuring that corresponding measures can be taken for specific interference frequencies.
[0113] The function of the filter selection and design module is to select or design a suitable filter solution based on the identified interference frequency. The module includes a database that stores the parameters and applicable frequency ranges of various types of filters, such as low-pass, high-pass, band-pass and band-stop filters. Based on the interference frequency information obtained from the spectrum analyzer and the filter parameters in the database, the design software recommends or designs the best filter solution to deal with interference of different frequencies and ensure that electromagnetic signal interference can be effectively suppressed.
[0114] Next, the filter processing module implements interference suppression by configuring and installing filter components. According to the scheme provided by the filter selection and design module, the filter components are precisely configured and installed on the power line and signal line through the installation kit. The installation position and type of the filter determine its working efficiency, which can effectively filter out electromagnetic interference signals within a specific frequency range, thereby reducing the impact of electromagnetic leakage on the system or peripheral equipment.
[0115] Finally, the test and optimization module and the monitoring and adjustment module are responsible for evaluating and dynamically adjusting the filtering effect. The secondary signal acquisition device is used to collect electromagnetic signals after filtering and evaluate the suppression effect of the filter through analysis software. If the suppression effect of the interference signal is not good, the system will make optimization suggestions through analysis software. At the same time, the monitoring and adjustment module continuously tracks the changes in the electromagnetic environment through real-time monitoring equipment, and the adjustment control unit automatically adjusts the filter configuration according to the real-time monitoring results, or reminds the operator to make manual adjustments to ensure that the suppression of electromagnetic interference can operate effectively for a long time.
[0116] The embodiments of the present invention mainly rely on effectively filtering out interference signals to ensure the accuracy and reliability of magnetically sensitive samples during vibration testing. This method avoids the negative effects of traditional shielding methods by identifying the frequency range of interference signals and applying filters of corresponding frequencies to key locations. Through the embodiments of the present invention, electromagnetic interference generated during the operation of the electromagnetic vibration table can be efficiently identified and eliminated, ensuring the accuracy and reliability of the experiment.
[0117] The method for processing electromagnetic leakage interference of an electromagnetic vibration table provided in an application embodiment of the present invention is applied to a computer device, wherein the computer device includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for processing electromagnetic leakage interference of an electromagnetic vibration table.
[0118] The method for processing electromagnetic leakage interference of an electromagnetic vibration table provided in an application embodiment of the present invention is applied to an information data processing terminal, and the information data processing terminal is used to implement the system for processing electromagnetic leakage interference of an electromagnetic vibration table.
[0119] The following are two specific embodiments of the method for processing electromagnetic leakage interference of an electromagnetic vibration table, which show how to use filtering strategies to solve electromagnetic interference problems in different application scenarios.
[0120] Application Example 1: Vibration Testing of Avionics Equipment
[0121] When conducting vibration tests on avionics equipment, electromagnetic interference (EMI) can affect sensitive electronic components, leading to inaccurate test results. These devices typically include sophisticated navigation systems, communication systems, etc., which are extremely sensitive to EMI.
[0122] 1. Identification of the interference frequency range: Through laboratory testing, using a spectrum analyzer to collect electromagnetic signals while the electromagnetic vibration table was running, the main interference frequencies were identified as signals in the range of 300MHz to 3GHz.
[0123] 2. Filter selection and design: For the identified frequency range, select a high-performance band-stop filter, which is specially designed to filter out signals in the range of 300MHz to 3GHz.
[0124] 3. Filtering: Install the selected band-stop filter on the power amplifier power line and all signal transmission lines of the electromagnetic vibration table.
[0125] 4. Testing and optimization: After installing the filter, re-perform the electromagnetic environment test to confirm that the interference signal has been effectively filtered out and ensure that the test environment meets the requirements for avionics equipment testing.
[0126] By implementing this filtering strategy, electromagnetic interference is effectively controlled within the critical frequency range, ensuring that the performance of avionics equipment during vibration testing is not disturbed and the test results are more accurate and reliable.
[0127] Application Example 2: Vibration Resistance Testing of Medical Equipment
[0128] Medical devices, such as pacemakers and other implantable devices, need to be designed to verify their stability and reliability in vibration environments. These devices are often very small and extremely sensitive to electromagnetic interference.
[0129] 1. Identification of interference frequency range: Preliminary tests show that the interference is mainly concentrated in the low-frequency range of 50Hz to 1kHz, which is closely related to the operating frequency of the electromagnetic vibration table.
[0130] 2. Filter selection and design: Based on the identified interference frequency, select a low-pass filter suitable for the low-frequency range to effectively filter out frequencies above 1kHz.
[0131] 3. Filtering: Install low-pass filters on the power lines and signal transmission lines of the electromagnetic vibration table to reduce electromagnetic interference to medical equipment.
[0132] 4. Testing and optimization: After installing the filter, perform testing to verify that low-frequency interference is effectively controlled and meets the environmental requirements for vibration resistance testing of medical equipment.
[0133] After adopting the filtering strategy, the medical equipment was not affected by electromagnetic interference during the vibration resistance test, and the electromagnetic interference in the test environment was effectively controlled, thus ensuring the accuracy of the test and the safety of the equipment.
[0134] Through these two examples, it is demonstrated how to select and apply appropriate filters according to the specific conditions of the interference frequency in different application scenarios to solve the electromagnetic leakage interference problem of the electromagnetic vibration table. This method improves the accuracy and reliability of the test process while avoiding the negative effects of traditional shielding methods.
[0135] It should be noted that the embodiments of the present invention can be implemented by hardware, software, or a combination of software and hardware. The hardware part can be implemented using dedicated logic; the software part can be stored in a memory and executed by an appropriate instruction execution system, such as a microprocessor or dedicated design hardware. It can be understood by a person of ordinary skill in the art that the above-mentioned devices and methods can be implemented using computer executable instructions and / or contained in a processor control code, such as a carrier medium such as a disk, CD or DVD-ROM, a programmable memory such as a read-only memory (firmware), or a data carrier such as an optical or electronic signal carrier. Such code is provided on the carrier medium. The device and its modules of the present invention can be implemented by hardware circuits such as very large-scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, etc., or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., can also be implemented by software executed by various types of processors, and can also be implemented by a combination of the above-mentioned hardware circuits and software, such as firmware.
[0136] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.
Claims
1. A method for processing electromagnetic leakage interference of an electromagnetic vibration table, characterized in that: include: Step 1: Start the signal acquisition and analysis module to monitor the electromagnetic signals generated by the electromagnetic vibration table in real time during operation and identify the interference frequency range; Step 2: Select or design a suitable filter based on the identified frequency range through the filter selection and design module; Step 3: Using the filtering processing unit, filters are installed on necessary power lines and signal lines to implement interference suppression measures; Step 4: Run the test and optimization module to evaluate the filtering effect, adjust the filter configuration as needed, and optimize the electromagnetic interference suppression effect; Step 5: Continuously execute the monitoring and adjustment module to adapt to changes in the experimental environment and ensure long-term and effective electromagnetic interference control.
2. The method for processing electromagnetic leakage interference of an electromagnetic vibration table according to claim 1, characterized in that: In the step three, a filter is installed on the power supply line of the electromagnetic vibration table to eliminate the electromagnetic interference generated by the power supply itself, and a filter is installed on the signal transmission line to eliminate the electromagnetic interference generated during the signal transmission process.
3. The method for processing electromagnetic leakage interference of an electromagnetic vibration table according to claim 1, characterized in that: In step 4, after the filter is installed, the electromagnetic signal is collected and analyzed again to verify whether the interference signal has been effectively reduced or eliminated. According to the test results, the parameters or position of the filter are adjusted until a satisfactory electromagnetic interference suppression effect is achieved.
4. A system for processing electromagnetic leakage interference of an electromagnetic vibration table according to any one of claims 1 to 3, characterized in that: The system for processing electromagnetic leakage interference of an electromagnetic vibration table comprises: The signal acquisition and analysis module is used to collect the electromagnetic signals generated by the electromagnetic vibration table in real time and perform preliminary analysis to identify the interference frequency range; A filter selection and design module is used to automatically select or design a suitable filter based on the identified interference frequency range; A filtering processing module is used to filter the power supply line and signal transmission line of the electromagnetic vibration table to eliminate or reduce electromagnetic interference; The test and optimization module is used to test the filtering effect, adjust the parameters or position of the filter according to the results, and optimize the electromagnetic interference suppression effect; The monitoring and adjustment module is used to continuously monitor the electromagnetic environment and adjust the filtering strategy according to changes in actual applications.
5. The system for processing electromagnetic leakage interference of an electromagnetic vibration table according to claim 4, characterized in that: The signal acquisition and analysis module comprises: An electromagnetic field detector or sensor, fixed near the electromagnetic vibration table, is used to capture electromagnetic signals; A spectrum analyzer, connected to the detector, analyzes the collected electromagnetic signals and identifies the interfering frequencies; The filter selection and design module comprises: Database, storing parameters and applicable frequency ranges of various types of filters; Design software that recommends or designs filter solutions based on the identified interference frequencies and database information. Different types of filters (such as low-pass, high-pass, band-pass, and band-stop filters) are required for different interference frequencies.
6. The system for processing electromagnetic leakage interference of an electromagnetic vibration table according to claim 4, characterized in that: The filtering processing module comprises: filter components, configured according to a selected or designed solution; Mounting kit for mounting filters on power and signal lines.
7. The system for processing electromagnetic leakage interference of an electromagnetic vibration table according to claim 4, characterized in that: The testing and optimization module includes: A secondary signal acquisition device, used for acquiring the filtered electromagnetic signal; Analysis software to evaluate filtering effects and provide adjustment suggestions.
8. The system for processing electromagnetic leakage interference of an electromagnetic vibration table according to claim 4, characterized in that: The monitoring and adjustment module includes: Monitor equipment in real time and continuously track changes in the electromagnetic environment. The adjustment control unit automatically adjusts the filter configuration according to the monitoring results or reminds the operator to make manual adjustments.
9. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the processor executes the steps of the method for processing electromagnetic leakage interference of an electromagnetic vibration table according to any one of claims 1 to 3.
10. An information data processing terminal, characterized in that: The information data processing terminal is used to implement the system for processing electromagnetic leakage interference of an electromagnetic vibration table as described in any one of claims 4-8.
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