Abstract
In the increasingly complex electromagnetic environment of modern electronic systems, ensuring the stable operation of electronic equipment under the influence of impulse magnetic fields has become a crucial issue. The Impulse Magnetic Field Immunity Test Method serves as an important means to evaluate the anti – interference ability of electronic equipment in such environments. This paper takes the LISUN IMF61000 – 9 Impulse Magnetic Field Immunity Tester as the research object. It first elaborates on the basic principles and significance of the Impulse Magnetic Field Immunity Test Method. Then, it introduces in detail the characteristics of the LISUN IMF61000 – 9 tester, which is specially designed according to the characteristics and requirements of this test method. Finally, it discusses the application fields and future development trends of the tester. The research shows that the LISUN IMF61000 – 9 tester, with its excellent performance and compliance with international standards, provides a reliable guarantee for the effective implementation of the Impulse Magnetic Field Immunity Test Method.
1. Introduction
With the rapid development of electronic technology, electronic equipment is widely used in various fields such as industry, communication, medical treatment, and aerospace. However, the surrounding electromagnetic environment is becoming more and more complex, and impulse magnetic fields, as a common electromagnetic interference source, may cause malfunctions, performance degradation, or even permanent damage to electronic equipment. Therefore, it is of great practical significance to evaluate the ability of electronic equipment to resist impulse magnetic field interference through scientific testing methods.
The Impulse Magnetic Field Immunity Test Method is a standardized testing procedure used to assess the immunity of electrical and electronic equipment to impulse magnetic fields. It simulates the impulse magnetic field environment that equipment may encounter in actual use, so as to detect whether the equipment can work normally under such interference. To ensure the accuracy and reliability of the test results, a high – performance and high – reliability test instrument is essential. The LISUN IMF61000 – 9 Impulse Magnetic Field Immunity Tester is such a device specially designed for the Impulse Magnetic Field Immunity Test Method. It fully complies with international standards such as IEC61000 – 4 – 9, EN61000 – 4 – 9, and GB/T17626.9, providing strong support for the effective implementation of the test method.
2. Principles of Impulse Magnetic Field Immunity Test Method
The core of the Impulse Magnetic Field Immunity Test Method is to simulate the impulse magnetic field generated by events such as lightning strikes, switching operations of power systems, and electrostatic discharges, and to apply this magnetic field to the tested electronic equipment to observe its working status. The impulse magnetic field has the characteristics of short duration, high intensity, and fast rise time, which can induce transient voltages and currents in the circuits of the equipment, thus affecting the normal operation of the equipment.
In the Impulse Magnetic Field Immunity Test Method, the key parameters to be controlled include the waveform of the impulse magnetic field, magnetic field strength, rise time, duration time, etc. These parameters must be strictly in accordance with the requirements of relevant standards to ensure the comparability and validity of the test results. For example, the standard specifies that the current waveform of the impulse magnetic field should be 6.4/16μs, where 6.4μs is the rise time and 16μs is the duration time. The magnetic field strength should be adjustable within a certain range to simulate different interference intensities.
The LISUN IMF61000 – 9 Impulse Magnetic Field Immunity Tester is carefully designed to meet the characteristics and requirements of the Impulse Magnetic Field Immunity Test Method, with the following outstanding characteristics:
The tester fully complies with IEC61000 – 4 – 9, EN61000 – 4 – 9, and GB/T17626.9 standards. This ensures that the tests conducted using this instrument are in line with international norms, and the test results are recognized globally. Compliance with standards is the basis for the application of the Impulse Magnetic Field Immunity Test Method, as it allows for consistent testing across different laboratories and regions.
It adopts an imported programmable high – voltage power supply, which provides stable and reliable power output. The intelligent control system enables precise adjustment and control of various test parameters. Operators can easily set parameters such as magnetic field strength, pulse interval, and number of pulses through the built – in interface, ensuring that the test process strictly follows the Impulse Magnetic Field Immunity Test Method.
The tester is equipped with software and can be remotely controlled via an RS232 communication port. This feature is very useful in automated testing systems, allowing operators to control the test process from a remote location, improving testing efficiency and reducing manual intervention. It also facilitates the integration of the tester into a larger test network, making the implementation of the Impulse Magnetic Field Immunity Test Method more flexible.
The modular design makes maintenance and upgrades easy. If a certain module fails, it can be replaced independently without affecting the entire instrument. At the same time, when there is a need to upgrade the performance of the tester to adapt to new versions of the Impulse Magnetic Field Immunity Test Method or new test requirements, only the relevant modules need to be upgraded, which saves costs and extends the service life of the instrument.
It is equipped with a large colorful LCD touch screen, which simplifies the operation process. The built – in IEC standard test levels allow operators to quickly select the appropriate test level according to the test requirements, reducing the possibility of operation errors. This user – friendly design ensures that the Impulse Magnetic Field Immunity Test Method can be implemented smoothly.
IMF61000-9_ Impulse Magnetic Field Immunity Tester
4. Technical Specifications of the LISUN IMF61000 – 9 Tester (Based on Impulse Magnetic Field Immunity Test Method)
The following table lists the key technical specifications of the LISUN IMF61000 – 9 Impulse Magnetic Field Immunity Tester, which are closely related to the requirements of the Impulse Magnetic Field Immunity Test Method:
| Technical Parameter | Specification |
|---|---|
| Pulse Magnetic Field Output Waveform | voltage waveform: 1.2/50μs; current waveform: 6.4/16μs |
| Magnetic Field Strength | 0A/m~3000A/m |
| Rise Time | 6.4μs±30% |
| Duration Time | 16μs±30% |
| Combined Wave Output Impedance | 2Ω±0.25Ω |
| Maximum Open Circuit Voltage | 6.0KV |
| Maximum Short Circuit Current | 3.0KA |
| Polarity | Positive and Negative |
| Pulse Trigger Mode | Manual and Automatic |
| Pulse Interval | 10s~9999s |
| Number of Pulse | 1~9999 |
These parameters are designed to meet the strict requirements of the Impulse Magnetic Field Immunity Test Method. For example, the current waveform of 6.4/16μs is exactly the standard waveform specified in the test method, ensuring that the impulse magnetic field generated by the tester is consistent with the simulated actual interference. The adjustable magnetic field strength range of 0A/m~3000A/m allows for testing under different interference intensities, which is crucial for evaluating the immunity of equipment under various conditions.
The rise time and duration time are within the allowable error range of the standard, ensuring the accuracy of the impulse magnetic field’s time characteristics. The combined wave output impedance of 2Ω±0.25Ω ensures the stability of the output signal, which is important for maintaining the consistency of the test results. The maximum open – circuit voltage of 6.0KV and maximum short – circuit current of 3.0KA provide sufficient energy to generate the required impulse magnetic field.
The ability to switch between positive and negative polarities allows for testing the equipment’s immunity to impulse magnetic fields of different polarities, which is in line with the comprehensive evaluation requirements of the Impulse Magnetic Field Immunity Test Method. The manual and automatic pulse trigger modes provide flexibility in the test process. Manual triggering is suitable for small – scale tests and debugging, while automatic triggering is more suitable for large – batch and long – term tests, improving testing efficiency.
The adjustable pulse interval (10s~9999s) and number of pulses (1~9999) allow operators to set the test parameters according to the specific requirements of the tested equipment and the test method, simulating different interference frequencies and cumulative effects.
5. Working Principle of the LISUN IMF61000 – 9 Tester in Implementing Impulse Magnetic Field Immunity Test Method
The LISUN IMF61000 – 9 tester works based on the principle of generating an impulse magnetic field through the discharge of a high – voltage capacitor. When the tester is working, the high – voltage power supply charges the capacitor to a certain voltage. Then, under the control of the trigger circuit, the capacitor discharges through the test coil, generating a strong impulse current in the coil. According to Ampère’s law, this impulse current will generate an impulse magnetic field around the coil, and the tested equipment is placed in this magnetic field to undergo the immunity test.
The key to ensuring the accuracy of the test is to accurately control the discharge process, so that the generated current waveform, amplitude, and duration meet the requirements of the Impulse Magnetic Field Immunity Test Method. The imported programmable high – voltage power supply of the LISUN IMF61000 – 9 tester can precisely control the charging voltage, thus controlling the energy stored in the capacitor. The modular control circuit ensures the stability and repeatability of the discharge process, making the generated impulse magnetic field parameters stable and reliable.
The intelligent control system of the tester monitors the entire test process in real – time, including voltage, current, and magnetic field strength. It can automatically adjust the parameters according to the set values to ensure that the test is carried out in accordance with the Impulse Magnetic Field Immunity Test Method. The remote control function enables the tester to be integrated into an automated test system, realizing unattended testing and improving the efficiency and accuracy of the test.
The LISUN IMF61000 – 9 tester, with its excellent performance in implementing the Impulse Magnetic Field Immunity Test Method, is widely used in various fields that require testing the impulse magnetic field immunity of electronic equipment:
In industrial control systems, electronic equipment such as PLCs, frequency converters, and sensors are often exposed to complex electromagnetic environments. Impulse magnetic fields generated by switching operations of motors and other equipment may interfere with their normal operation. Using the LISUN IMF61000 – 9 tester to conduct tests based on the Impulse Magnetic Field Immunity Test Method can evaluate the immunity of these industrial control equipment, ensuring the stable operation of the industrial production process.
Communication equipment such as base stations, routers, and modems needs to maintain normal communication in various electromagnetic environments. Lightning strikes and other events may generate strong impulse magnetic fields, affecting the communication quality and even causing equipment damage. The LISUN IMF61000 – 9 tester can simulate these impulse magnetic fields, and through the Impulse Magnetic Field Immunity Test Method, evaluate the immunity of communication equipment, providing a guarantee for the reliability of communication systems.
Medical equipment such as monitors, defibrillators, and MRI machines has high requirements for electromagnetic compatibility. Impulse magnetic fields may interfere with the normal operation of these equipment, endangering the lives of patients. The LISUN IMF61000 – 9 tester, in accordance with the Impulse Magnetic Field Immunity Test Method, can test the impulse magnetic field immunity of medical equipment, ensuring their safe and reliable operation.
Aerospace electronic equipment works in a harsh electromagnetic environment, and the impact of impulse magnetic fields on them is more significant. The failure of these equipment may lead to catastrophic consequences. Using the LISUN IMF61000 – 9 tester to conduct tests based on the Impulse Magnetic Field Immunity Test Method can strictly evaluate the immunity of aerospace electronic equipment, ensuring the safety of aerospace missions.
Compared with other similar impulse magnetic field immunity testers on the market, the LISUN IMF61000 – 9 tester has the following advantages in implementing the Impulse Magnetic Field Immunity Test Method:
The tester adopts high – quality components and advanced control technology, ensuring that the generated impulse magnetic field parameters (such as waveform, amplitude, rise time, and duration time) have high accuracy and stability. This makes the test results more reliable, which is crucial for the accurate evaluation of the equipment’s immunity in accordance with the Impulse Magnetic Field Immunity Test Method.
The LISUN IMF61000 – 9 tester fully complies with multiple international standards, ensuring that the test process and results are recognized globally. For enterprises engaged in international trade, using this tester can avoid the trouble of inconsistent test results caused by non – compliance with standards, facilitating the export of products.
The large colorful LCD touch screen and built – in standard test levels make the operation of the tester simple and intuitive. Even operators with little experience can quickly master the operation method, reducing the training cost and improving the test efficiency. This is very important for the popularization and application of the Impulse Magnetic Field Immunity Test Method.
The modular structure design of the tester makes it easy to upgrade and expand. With the continuous development of the Impulse Magnetic Field Immunity Test Method and the emergence of new test requirements, the tester can be upgraded by replacing or adding modules to meet the new standards and requirements, extending its service life and reducing the cost of equipment replacement.
8. Conclusion
The Impulse Magnetic Field Immunity Test Method is an important means to evaluate the anti – interference ability of electronic equipment in impulse magnetic field environments. The LISUN IMF61000 – 9 Impulse Magnetic Field Immunity Tester, as a high – reliability test instrument specially designed for this method, has excellent performance in terms of compliance with standards, technical specifications, ease of operation, and application fields.
Its compliance with international standards ensures the validity and comparability of test results. The excellent technical specifications meet the strict requirements of the Impulse Magnetic Field Immunity Test Method, providing accurate and reliable test conditions. The user – friendly operation and remote control function improve the test efficiency and flexibility. The wide application fields show that it can meet the test needs of various industries.
In the future, with the continuous development of electronic technology and the increasing complexity of the electromagnetic environment, the importance of the Impulse Magnetic Field Immunity Test Method will become more prominent. The LISUN IMF61000 – 9 tester will continue to play an important role in promoting the application and development of this method, providing strong support for ensuring the reliable operation of electronic equipment.
Enterprises and testing institutions engaged in the research, development, and production of electronic equipment should pay full attention to the Impulse Magnetic Field Immunity Test Method and choose high – quality test instruments such as the LISUN IMF61000 – 9 to conduct strict tests on their products, improving the quality and reliability of products and enhancing their competitiveness in the market. For more details about the LISUN IMF61000 – 9 Impulse Magnetic Field Immunity Tester, please visit the website: https://www.lisungroup.com/products/emi-and-emc-test-system/impulse-magnetic-field-immunity-tester.html.
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