The Light Distribution Curve and Related Standard of Lamps
Light Distribution refers to light intensity distribution of light sources (lamps) in all directions in the space, it can be represented by the light distribution curve, space illumination curve, plane relative illumination curve, the light intensity distribution form, mathematical function and so on. In the past, the most widely used, the most convenient to calculate […]
CE test consists of EMC test and LVD safety test
CE test consists of EMC test and LVD safety test EMC = EMI + EMS EMI (Electromagnetic Interference) Test can be divided into: 1. Radiation : Space Radiation Chamber / Power Radiation Clamp / Open Field Test 2. Conduction 3. Power Harmonics 4. Voltage Flicker EMS (Electromagnetic Tolerance) Test can be divided into: 1.ESD (Anti-static […]
What is pre-compliance testing?
Pre-compliance testing can take many forms. In most cases, pre-compliance testing involves an attempt to simulate the methods (or a close approximation to it) that a full compliance lab would undertake on your product. For EMC, that means quantifying the emissions coming from the product – both radiated and conducted, and for the products that will […]
Line Impedance Stabilization Network
LISN (line impedance stabilization network) is a device used in conducted and radiated radio-frequency emission and susceptibility tests, as specified in various EMC/EMI test standards (e.g. by CISPR, IEC, CENELEC, FCC, MIL-STD, etc.). A LISN is a low-pass filter typically placed between an ac or dc power source and the EUT (Equipment Under Test) to […]
