Abstract With the rapid development of industrial electronics and power systems, electromagnetic compatibility (EMC) has become a critical criterion for ensuring the stable operation of electrical and electronic equipment. Damped oscillatory wave interference, a common electromagnetic disturbance in power grids and industrial environments, can cause malfunctions or even damage to sensitive equipme...
Abstract This paper focuses on the significance of ISTA and ASTM Drop Test Machines for packages, with a particular emphasis on the LISUN DT-60KG Automatic Double – Arms Drop Test Machine. It elaborates on how these machines measure the impact that packages endure during transportation and handling processes, such as drops. By conducting relevant tests, the impact strength of packages can...
Abstract Alloy analysis is critical in industries such as manufacturing, automotive, aerospace, and waste metal recycling, as it ensures material quality, safety compliance, and resource efficiency. Traditional alloy analysis methods (e.g., laboratory-based atomic absorption spectroscopy or inductively coupled plasma mass spectrometry) are limited by their bulkiness, high cost, and requirement for...
Abstract With the mandatory implementation of the RoHS 2.0 revised directive (EU) 2015/863 since July 22, 2019, four phthalates have been added to the list of restricted substances, supplementing the original six restricted substances (lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers). To meet the urgent need for rapid and accurate screening of ...
Abstract: This paper focuses on the EMC EFT immunity tester, especially the LISUN EFT61000 – 4 EFT Immunity Measurement product. It elaborates on the principles of electrical fast transient (EFT) and burst phenomena, the significance of EFT immunity testing, and the relevant international standards. The structure, features, and operation procedures of the LISUN EFT61000 – 4 are introd...
Abstract Conducted emissions, a critical component of electromagnetic interference (EMI), refer to the propagation of unwanted electromagnetic energy through conductive media such as power lines, cables, or connectors. Accurate measurement of conducted emissions is essential for ensuring electronic devices comply with international standards, avoiding interference with other equipment, and maintai...
Abstract With the widespread application of light-emitting diodes (LEDs) in lighting, displays, and medical devices, concerns about their potential photobiological hazards—such as retinal damage from blue light exposure—have grown significantly. The LED Photobiological Radiation Safety Test has become a critical procedure to evaluate these risks and ensure compliance with international stan...
Abstract Electrostatic discharge (ESD) poses a significant threat to the reliability and performance of semiconductor devices, such as integrated circuits (ICs), light-emitting diode (LED) chips, and transistors. To ensure these devices can withstand ESD events, standardized testing using Human Body Model (HBM) and Machine Model (MM) ESD simulator is critical. This paper focuses on the LISUN ESD-8...
Abstract Electrostatic discharge (ESD) generated by human bodies or between objects poses significant risks to electrical and electronic equipment, potentially causing malfunctions or permanent damage. To ensure the reliability of such equipment, evaluating their ESD immunity is essential. The electrostatic discharge gun, as a core testing device, simulates real-world ESD events to assess equipmen...
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