-
https://www.lisungroup.com/news/%new%/why-is-it-difficult-to-shield-low-frequency-magnetic-fields.html

Comments

Post a Comment

Popular posts from this blog

-
Image
The ipx6 Waterproof Test Chamber can also be called an ipx6 strong flushing device. It uses a distance of 2.5-3 meters from the spray gun to conduct strong flushing test testing on various electronic products. IPX6 refers to preventing the invasion of large waves and damage to equipment soaked in water due to the invasion of large waves. Automobile headlights generally need to meet the IPx56 waterproof test. The test condition of IPX6 waterproof test chamber is that the nozzle inner diameter of the spray gun is 12.5mm; The water flow needs to reach 100 L/min; The water pressure needs to be adjusted according to the specified water flow; The water spraying distance needs to be 2.5m-3 meters from the shell; The water spraying time per square meter of its shell surface is about 1 minute; The shell test time should not be at least 3 minutes; The ipx6 water spray test chamber is divided into two different shapes of instruments: open type and chamber type, which can be used to test sampl...
Read more
-
Image
The UL94 horizontal and vertical burning tester is a precision device used to evaluate the combustion performance of materials. It is applicable in research, production, and quality inspection across a wide range of electrical and electronic products and components, including lighting equipment, low-voltage electrical appliances, household appliances, machine tool electrical devices, motors, power tools, electronic instruments, electrical instruments, IT equipment, office electrical equipment, electrical connectors, and accessories. This equipment is also suitable for industries involving insulation materials, engineering plastics, or other solid combustible materials. Main Testing Methods The UL94 horizontal and vertical burning tester supports five primary testing methods: Horizontal Burning Test (HB): The material is placed horizontally, and after burning for a specific duration, the burn rate and flame extinguishing time are measured. It is used to assess the flammability of materi...
Read more

LM-80 LED light measurement using LISUN goniophotometer

-
Image
The Illuminating Engineering Society (IES) developed the LM-80 testing standard as a means of assessing the efficiency of light-emitting diodes (LEDs) and other solid-state lighting devices. When measuring the lumen maintenance of an LED light source over time, the circumstances of the test, the methods to follow, and the criteria for reporting are all specified by the standard. The LM-80 test was developed with the intention of furnishing LED producers as well as end users with data that is dependable and consistent about the LEDs' long-term performance. The results of the tests are often presented as the average lumen maintenance at various intervals, such as 6,000 hours, 12,000 hours, and so on, up to a maximum of 50,000 hours. For example, a 6,000-hour test may report the average lumen maintenance after 12,000 hours. After that, the data from the test is utilized to make a prediction of the LED product's lifespan, which is referred to as L70. This standard is acknowledged...
Read more