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Abstract Impedance characteristics are critical to evaluating the performance of electronic components such as ferroelectric crystals, piezoelectric ceramics, piezoelectric crystals, and ultrasonic transducers. The impedance analyzer circuit, as the core functional unit of an impedance analyzer, determines the accuracy, stability, and efficiency of impedance measurement. This paper takes the LISUN LS90 series impedance analyzer as the research object, systematically expounds the composition and working principle of its impedance analyzer circuit, and deeply explores the application of the instrument in the impedance analysis and testing of ferroelectric crystals, piezoelectric ceramics, piezoelectric crystals, and ultrasonic transducers. Through specific test data and comparative analysis, the performance advantages of the LISUN LS90 impedance analyzer in terms of measurement accuracy, frequency range, and stability are verified. The research results show that the impedance analyzer ci...
Abstract Goniometer light measurement serves as the cornerstone of accurate optical performance evaluation for solid-state lighting (SSL) products. With the 2025 release of ANSI/IES LM-79-24, the latest iteration of SSL photoelectric testing standards, manufacturers require advanced goniometric systems to meet updated regulatory demands while maintaining compatibility with prior benchmarks like LM-79-19. This paper examines the technical principles of goniometer light measurement and systematically verifies how the LISUN LSG-6000 LM-79 Moving Detector Goniophotometer (Mirror Type C) fulfills both legacy and contemporary LM-79 requirements. Through analysis of its mechanical design, measurement capabilities, and test data validation, this study confirms the instrument’s suitability for comprehensive SSL product testing across diverse applications. 1. Introduction 1.1 Significance of Goniometer Light Measurement SSL technologies, including LED and OLED lighting, have revolutionized the i...
Abstract In fields such as electrical and electronic products, new energy, and communications, lightning surge interference faced by equipment is a key factor leading to product failures and performance degradation. EMC (Electromagnetic Compatibility) compliance certification is a crucial threshold for products to enter the market. This paper takes the LISUN SG61000-5 Surge Tester Manufacturers as the research object, and based on international and domestic standards such as IEC 61000-4-5 and GB/T 17626.5, systematically expounds the modular design principle, core technical parameters, and testing process of this equipment. It focuses on analyzing its application scenarios in different fields, intuitively presents the equipment performance through constructing a standard waveform and test parameter comparison table, and verifies its practicality in EMC compliance certification with actual test cases. The research shows that the LISUN SG61000-5 Surge Tester Manufacturers, with its wide...
Abstract In industries such as electrical and electronic products, automobiles, and motorcycles, products are often exposed to the erosion of dust environments. Dust intrusion may lead to product structure damage, functional failure, and even safety hazards. This paper takes the LISUN SC-015 Dust Chamber Manufacturer as the research object, and based on international and domestic standards such as IEC 60529 and GB/T 4208, systematically expounds the design principles, core technical parameters, and testing procedures of this equipment. It focuses on analyzing its specific applications in fields such as electrical and electronic products, lamps, electrical cabinets, electrical components, automobiles, and motorcycle parts. A test parameter comparison table for different products is constructed to intuitively present the test conditions, and practical test cases are used to verify the practicability of the equipment. The research shows that the LISUN SC-015 Dust Chamber Manufacturer can...
Abstract Throughout the entire life cycle of electrical and electronic products, waterproof performance in outdoor or humid environments is a critical indicator determining product reliability and safety. This paper takes the LISUN JL-UL UL Rain Test Apparatus as the research object, and based on international authoritative standards such as UL 1598 and UL 60598, systematically analyzes the design principles, core technical parameters, and testing procedures of this apparatus. It focuses on expounding its specific applications in rain performance testing of electrical and electronic products, lamps, electrical cabinets, and electrical components. A test parameter comparison table is constructed to intuitively present the testing conditions for different products, and practical test cases are used to verify the practicability of the apparatus. The research shows that the LISUN JL-UL UL Rain Test Apparatus can accurately simulate rain climate conditions of different intensities. By dete...