Abstract The selection of thermocouple type directly impacts the accuracy, reliability, and cost-effectiveness of temperature measurement in industrial applications. Among the many standardized types, Type K and Type E thermocouples are the most widely used due to their excellent overall performance, yet they exhibit significant differences in material composition, output characteristics, and suit...
Abstract This paper systematically elucidates the technical principles and standardized methodologies for the IPX3 and IPX4 water ingress testing, which are critical assessments within the ingress protection (IP) rating system for electronic enclosures. A detailed interpretation of the stringent requirements stipulated in the international standard IEC 60529 and its national counterpart, GB/T 4208...
Abstract In the process of industrial product R&D, production quality inspection, and compliance certification, the environmental adaptability and reliability of materials and products are key factors determining their market competitiveness. As a core environmental simulation tool, the climate test chamber can accurately reproduce multiple climatic scenarios such as “low-temperature res...
Abstract As a new generation of solid-state lighting sources, LED quality directly determines lighting effect, energy efficiency, and service life. Opto-electro-color parameters are the core indicators for measuring LED quality. Lumen testers, as key equipment for detecting LED opto-electro-color parameters, play an irreplaceable role in quality control. This paper takes the LISUN LPCE-2(LMS-9000)...
Abstract EMC instruments form the core toolkit for verifying the electromagnetic compatibility (EMC) of electrical and electronic products. Their fundamental task is to precisely measure and evaluate the levels of electromagnetic interference (EMI) generated by equipment, ensuring it does not cause interference to other devices or the environment and possesses a certain degree of immunity. This a...
Abstract In the context of global market integration and harmonized technical standards, product safety and environmental durability have evolved from competitive advantages into fundamental requirements for market access. The IEC 60529:2013 standard, published by the International Electrotechnical Commission, is globally recognized for defining Ingress Protection (IP) ratings, providing a system...
Abstract Transient overvoltages and overcurrents caused by lightning strikes and grid switching operations are critical factors threatening the reliability of electrical and electronic equipment. The impulse voltage tester (also referred to as a surge generator) is a core electromagnetic compatibility (EMC) test instrument for simulating such high-energy transient interference and evaluating the ...
Abstract As a key equipment in industrial production, scientific research and testing fields, color measurement instruments directly affect product quality control and R&D efficiency with their measurement accuracy, stability and convenience. Taking the HSCD-860 Handheld Spectrophotometer (High-Precision Reflection) launched by LISUN GROUP as the research object, this paper systematically anal...
Abstract In the system of industrial product R&D, production quality inspection, and compliance certification, the environmental adaptability and reliability of materials and products are core indicators determining their market competitiveness and service life. As a key equipment for accurately simulating complex natural environments, climate chambers can accelerate the assessment of product ...
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