An integrating sphere is a sphere having a reflecting covering on the interior, as implied by the name. It is designed to have a light source inside of it, at which point it can calculate the overall flux output of the light. Hence 2pi and 4pi integrating spheres are one of its types. It amasses all the rays that leave the item and are reflected by the coating on the interior of the sphere. As it...
Defining Voltage dip generator NEMA MG1-16.48 defines voltage dip as the greatest voltage difference from the rated generator output voltage. Inrush currents at motor start-up or large block loads limit engine speed and lower excitation to the main field generate these dips. Because the causes and solutions for instantaneous voltage dips differ from those for block loads, they are measured and ana...
It’s important to run testing on LED aging. Without an aging test, it is impossible to ensure the product’s quality, and unreliable elements will show up during the earliest stages of construction, which would significantly raise maintenance costs and safety incidents in the future. Instead, professionally aging a product before it leaves production and performing an inspection check i...
UL94 UL 94is one of the most used flammability tests for determining the relative flammability of plastic materials (Underwriters Laboratories test standard UL 94). Under carefully controlled laboratory circumstances, it evaluates a plastic part’s capacity to put out a flame after it has started, as well as how it will leak in response to a little open flame or radiant heat source. UL94 is a...
I. Salt spray test chamber| Salt spray testing simulates a corrosive salty environment in the laboratory. It is used to speed the testing of surface coatings’ capacity to withstand air corrosion. It is one of the oldest testing procedures used in the HVAC-R coatings business and, as such, is frequently referred to when selecting HVAC-R coatings. YWXQ-010 Salt Spray Test Chamber II. Slat spra...
Socket Tester A socket tester is a portable electrical gadget used to quickly determine whether wall sockets are properly wired and functioning properly. They are hooked into a power outlet directly or through an attached plug connected by a lead. Once installed, most versions employ three LEDs on the rear of the device as its signaling method. These will be illuminated in various combinations, ge...
The Thermal Shock Chamber from LISUN is an efficient tool for subjecting products to thermal shock testing. A product carrier basket in Thermal Shock Environmental Chambers automatically moves a product under test between individually controlled temperature zones. Users may easily monitor the product as it is transported between temperature zones thanks to built-in viewing windows. Thermal Shock C...
Electromagnetic Interference (EMI) Testing is electronic noise that interferes with cable signals and reduces signal integrity. EMI is typically generated by sources of electromagnetic radiation such as motors and machines. Electromagnetic interference is an electromagnetic phenomenon that has been discovered for a long time. It was discovered almost at the same time as the phenomenon of electroma...
With the popularity of LED lighting, the photobiological safety testing issues caused by its light radiation have attracted public attention, the most important of which is the blue light hazard. Optical radiation not only adversely affects the human retina, but may also harm the cornea, conjunctiva, lens and skin of our eyes. This paper intends to analyze and elaborate on photobiosafety from the ...
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