Any laboratory, which provides credible characterization of LED products, is dependent on lighting test equipment. The first question when you are designing a LED testing program is what do you want to prove by the measurements. Many projects require that for leading to occur, performance, color quality, temporal stability and electrical efficiency be answered in ways which are repeatable and repo...
Abstract Electrostatic discharge (ESD) is a common electromagnetic interference source during the operation of electrical and electronic equipment, which may easily cause abnormal performance, functional failure, or even permanent damage to the equipment. Its immunity test has become a core link in product reliability verification. As a key instrument for standardized testing, the ESD generator pl...
A thermal chamber is a key laboratory equipment that is utilized to analyze the product behavior under temperature stress. Diminished time, duration of thermal exposure In accelerated aging and durability tests fine control of ramps of temperatures and fine control of dwell times and cycling profiles to compress years of thermal exposure in weeks and months. Where humidity is also of great concern...
Abstract Salt spray corrosion is one of the core factors leading to metal material failure and reduced product reliability in marine environments and industrial scenarios. Accurately evaluating the salt spray corrosion resistance of materials and products is crucial for ensuring product service life. As a key environmental simulation testing equipment, salt spray chambers play an irreplaceable rol...
A good and consistent EMC measurement equipment is crucial in a lab doing compliance test and product development. One component of that ecosystem, which is critical, is the LISN which will serve to fix the line impedance and decouple the equipment under test with supply noise. When the routine maintenance is not taken care of, repeatability of measurements is lost, traceability, and safety are ch...
Abstract With the upgrading of the lighting industry towards high efficiency and intelligence, the optical-color performance of LED lamps, bulb lamps, and street lamps has become a core indicator for measuring product quality. The portable spectrometer, leveraging its portability and high precision, has emerged as a key device for on-site testing and quality control. This paper takes the Lisun LMS...
One of the most widely used accelerated corrosion tests, which is used to assess the action of metals and protective coating under constant applications, is the salt fog test. When you have to budget a test system or suppliers, it may be helpful to know the salt spray chamber price can begin in the low-thousand US dollars for basic benchtop systems and escalate well beyond that amount, to large ca...
An EM Test surge generator is special equipment which replicates the high-energy transient overvoltage’s a product is likely to experience in the field enabling engineers to conduct consistent surge immunity testing. These generators are intended to model two physically different types of transient events, the high-voltage combination wave, which is fast, short lived and high-voltage and the hig...
One of the major requirements of assessing LED luminaires deployed in the commercial, industrial, and outdoor setting is an accurate photometric measurement. An LED goniophotometer will be the main testing tool when the manufacturer requires an intense data, spatial distribution of light, and total luminous flux at standardized conditions. This paper describes the minimum setup specification of LM...
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