Introduction Voltage impulse generators, commonly referred to as Voltage Spike Generators, are crucial tools in electromagnetic compatibility (EMC) testing. These devices simulate high-energy voltage spikes or transients that electrical equipment might encounter during operation, such as those caused by lightning strikes, switching operations, or power-line crosses. Voltage impulse generators are used to assess the performance and robustness of electronic components and systems under these extreme conditions. This article explores the principles behind voltage impulse generators, their applications, and a detailed review of the LISUN DO160-S17 Voltage Spike Generator, a leading model designed to meet industry standards for testing and compliance. 1. Overview of Voltage Impulse Generators Voltage impulse generators are designed to produce transient voltage spikes that simulate the surges and spikes seen in real-world electrical environments. These transients, often in the form of fast-r...
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Showing posts from February, 2025
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Abstract Conducted interference testing is a critical process in evaluating the electromagnetic compatibility (EMC) of electronic devices and systems. This paper provides a comprehensive analysis of conducted interference testing, focusing on the role of the LISUN EMI-9KB EMI Test Receiver in conducting EMI conducted interference tests. We explore the principles, setup, and applications of conducted interference testing, with an emphasis on the importance of accurate measurements for regulatory compliance. The paper also presents practical data, system configurations, and theoretical insights on the conducted interference test process. 1. Introduction Electromagnetic interference (EMI) is a significant concern in modern electronics, particularly as devices become more compact and integrated. Conducted interference refers to the unwanted electromagnetic energy that is transferred along conductive paths, such as power lines, signal cables, or grounding systems. This form of interference ...
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Flammability testing plays a crucial role in ensuring the safety and compliance of electrical and electronic products. The vertical flammability test is a key method for assessing the fire resistance of various materials, particularly in electrical equipment, household appliances, and plastic components. This test is widely used to classify materials based on their flame-retardant properties, helping manufacturers ensure their products meet regulatory standards. This paper focuses on the applications of horizontal and vertical flammability tests, particularly the evaluation of HB&V level (50W) and 5V level (500W) materials, using the LISUN HVR-LS Horizontal Vertical Flame Tester. HVR-LS Horizontal Vertical Flame Tester Overview of Flammability Testing Flammability testing involves subjecting materials to controlled flame conditions and observing their behavior, such as ignition time, burning rate, and self-extinguishing ability. The results of these tests provide essential data to ...
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Introduction In today’s rapidly evolving electrical and electronic systems, ensuring the resilience of devices against voltage dips and interruptions is critical. Voltage dips and interruptions are common disturbances in power supply systems that can have a significant impact on the operation of sensitive electrical equipment. To simulate these disturbances, high-reliability equipment such as the Voltage Dips and Interruptions Generator is used to perform essential testing, ensuring devices can withstand temporary power supply interruptions and voltage dips. The Voltage Dips and Interruptions Generator, specifically the LISUN CSS61000-11, has been designed to comply with international standards for electromagnetic compatibility (EMC) and product reliability testing. This device is used to simulate power dips, short-term interruptions, and their effects on electrical equipment. In this paper, we will explore the importance of these tests, the functionality of the LISUN CSS61000-11, its ...
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Abstract The CDNE Coupling Decoupling Network is an essential tool for conducting electromagnetic compatibility (EMC) testing. By allowing precise injection and isolation of signals in compliance with international standards, the CDNE ensures reliable assessment of a device’s electromagnetic emissions. This paper focuses on the working principles, applications, and specifications of CDNE networks, with a special emphasis on the LISUN CDNE-M316 Coupling and Decoupling Network. Introduction Electromagnetic interference (EMI) poses significant challenges to modern electronic devices, necessitating rigorous EMC testing to ensure compliance with regulatory standards like CISPR 16-1-2. Coupling Decoupling Networks (CDNEs) play a crucial role in this process by enabling accurate measurement of conducted emissions and immunity. The LISUN CDNE-M316 Coupling and Decoupling Network exemplifies advanced design and compliance, supporting EMC testing for single-phase systems. Principles of CDNE Coup...
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Introduction Infrared thermometers, including ear and forehead thermometers, are widely used in medical and industrial applications for non-contact temperature measurements. These devices require periodic calibration to ensure their accuracy and reliability. The Blackbody Furnaces and Infrared Temperature Calibrators, such as the LISUN BBF-1 Black Body Furnace | Tachometer Calibrator, provide precise calibration for these instruments, as well as for infrared body surface screening devices. This article explores the principles, applications, and benefits of blackbody furnaces and infrared temperature calibrators in the calibration process. Working Principle of Blackbody Furnaces and Infrared Temperature Calibrators A blackbody furnace simulates an ideal blackbody, which absorbs all incident radiation without reflection. Its emissivity is close to 1, making it an excellent standard for temperature calibration. The furnace emits radiation corresponding to its temperature, which can be acc...
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Abstract Gloss meters are essential instruments for quantifying the glossiness of surfaces across various industries, including automotive, paint, plastic, and ceramics. Single angle technology, particularly at a 60° measurement angle, is widely adopted for its effectiveness in assessing semi-gloss surfaces. This paper provides an in-depth analysis of single angle technology in gloss meters, with a focus on the LISUN AGM-500PRO model. We discuss the principles of gloss measurement, the significance of the 60° angle, and the specific features and applications of the AGM-500PRO. 1. Introduction Gloss is a critical parameter that defines the visual appearance and quality of a product’s surface. Accurate measurement of gloss is vital for quality control and ensuring product consistency. Gloss meters, devices designed to measure the specular reflection of light from a surface, are commonly used for this purpose. Single angle technology refers to gloss meters that measure gloss at a specific...
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Introduction Corrosion is a critical challenge for many industries, particularly those working with metals and alloys. The salt spray test is one of the most widely adopted accelerated corrosion testing methods, used to evaluate the resistance of materials and coatings to corrosive environments. This article will focus on the importance of salt spray equipment, highlighting the features and applications of the LISUN YWX/Q-010 Salt Spray Test Chamber. Overview of Salt Spray Equipment Salt spray equipment, such as the LISUN YWX/Q-010, is designed to simulate highly corrosive environments by exposing samples to a mist of salt solution under controlled conditions. This process accelerates the corrosion reaction, allowing manufacturers to assess material durability, protective coatings, and product performance in a much shorter time than natural weathering tests. Key Specifications of the LISUN YWX/Q-010 The LISUN YWX/Q-010 Salt Spray Test Chamber is engineered for reliable and efficien...
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The demand for high-quality lighting solutions has led to a significant focus on testing and standardizing various light sources, including energy-saving lamps, fluorescent lamps, high-intensity discharge (HID) lamps such as high-pressure sodium and mercury lamps, cold cathode fluorescent lamps, and LEDs. To ensure compliance with international standards such as CIE 177, CIE-13.3, CIE-84, ANSI-C78.377, GB/T 24824, IESNA-LM-63-2, Optical-Engineering-49-3-033602, (EU) 2019/2015, LM-80, and LM-79, the LISUN LPCE-2 (LMS-9000C) High Precision Spectroradiometer Integrating Sphere System emerges as a critical tool. This system accurately evaluates the photometric, colorimetric, and electrical parameters of light sources, making it indispensable for quality control and R&D. LPCE 2(LMS 9000) Spectrophotometer & Integrating Sphere Test System Overview of the LISUN LPCE-2 (LMS-9000C) System The LISUN LPCE-2 system combines a high-precision spectroradiometer with an integrating sphere to d...
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In modern electrical and electronic systems, the ability to withstand high-energy transient disturbances caused by natural lightning strikes or large inductive/capacitive load switching is critical. The automatic surge generator, also known as a lightning surge generator, combination wave generator, current surge generator, or voltage surge generator, provides a standardized basis for evaluating the surge immunity of power lines and internal connection lines in various devices. Among the market-leading solutions, the LISUN SG61000-5 Surge Generator stands out as a reliable tool for compliance testing with standards like IEC 61000-4-5. This article delves into the applications, features, and benefits of using automatic surge generators for comprehensive surge immunity testing. SG61000-5_Surge Generator Overview of the Automatic Surge Generator The LISUN SG61000-5 is a state-of-the-art automatic surge generator designed to simulate transient overvoltages and currents experienced during l...
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Introduction Handheld spectrometers are increasingly popular in various fields such as lighting testing, research, and quality control. These devices offer flexibility, portability, and precision in measuring light characteristics. Among the most critical metrics when assessing light sources is the Correlated Color Temperature (CCT), a standard used to describe the color appearance of light. The LISUN LMS-6000 Portable CCD Spectroradiometer is one such device that integrates a CCT meter to accurately measure CCT and other important light parameters. This article explores the features, functionalities, and applications of handheld spectrometers, focusing on how the CCT meter in the LISUN LMS-6000 enhances light quality testing. 1. Understanding Handheld Spectrometers Handheld spectrometers are devices used for measuring light spectra, and they are widely used in industries such as lighting, display technology, and materials science. These spectrometers work by capturing light emitted fr...
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Abstract In the realm of precision measurement, the calibration of infrared thermometers, including infrared ear thermometers and forehead thermometers, is crucial for ensuring accurate body temperature readings. Black Body Calibrators play a pivotal role in this process, offering highly reliable and stable temperature sources for calibration. This paper provides an in-depth analysis of various calibration devices used for infrared thermometers, with a special focus on the LISUN BBF-1 Black Body Furnace. Through detailed explanations and data tables, this study highlights the importance of Black Body Calibrators in ensuring the accuracy and reliability of infrared temperature measurement devices. Introduction Infrared thermometers, specifically infrared ear thermometers and infrared forehead thermometers, have become increasingly popular due to their non-contact measurement capability and speed. These devices are commonly used in medical settings for quick temperature assessments. Howe...
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In the domain of high-speed production processes for electrolytic capacitors, the demand for precision testing has grown exponentially. The LISUN LS6515EN Capacitor Meter stands out as a high-accuracy capacitor tester ESR solution tailored for evaluating components used in automated taping machines. This article delves into its features, applications, and performance metrics, offering detailed insights backed by data. Introduction to LISUN LS6515EN The LISUN LS6515EN Capacitor Meter is an advanced device designed to test capacitance and Equivalent Series Resistance (ESR) with exceptional accuracy. It is widely utilized in production lines, particularly for testing electrolytic capacitors under high-speed taping machine conditions. Its precise performance ensures consistency in quality control, critical for electronic component manufacturers. Key Features of the LS6515EN Wide Measuring Range: • Capacitance: 0.1pF to 20mF • ESR: 0.001Ω to 20kΩ High-Speed Measurement: 15 ms/test, enabling...
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Abstract Water quality testing equipment is often exposed to challenging environments, including water, dust, and humidity. Ensuring the equipment’s durability and reliability requires stringent waterproof testing based on IP (Ingress Protection) standards. This article examines the waterproof testing methodologies for enclosures, focusing on the LISUN JL-X IP Waterproof Test Equipments. Through detailed analysis and illustrative data, we explore the testing procedures, IP ratings, and their implications for water quality testing equipment. 1. Introduction Water quality testing equipment plays a critical role in monitoring and ensuring water safety across industries. These devices are often deployed in harsh environments, requiring robust protection against water ingress. This necessitates rigorous waterproof testing to verify their compliance with international IP standards. The LISUN JL-X IP Waterproof Test Equipments offer a reliable solution for such evaluations. This paper delves ...
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Abstract Dust testers play a pivotal role in evaluating the resistance and durability of products exposed to dusty environments. These tests ensure that electronic components, lighting fixtures, automotive parts, and other products maintain functionality and integrity under adverse conditions. This paper focuses on the LISUN SC-015 Dustproof Testing Machine, examining its design, features, applications, and performance metrics. Using simulated dusty conditions, we analyze how products are tested for compliance with industry standards such as IEC60529 and IP5X/IP6X classifications. Relevant tables and data are included to provide a comprehensive understanding of the equipment’s capabilities and results. Introduction In environments with high concentrations of dust, products can experience functional degradation, contamination, or even failure. Dust testers, such as the LISUN SC-015 Dustproof Testing Machine, are essential for simulating dusty conditions and evaluating product performanc...