
Electromagnetic compatibility (EMC) includes two parts: electromagnetic interference (EVI) and electromagnetic immunity (EUS). Simply put, EMI refers to the disturbance of electronic devices to the external electromagnetic environment, while EMS refers to the ability of electronic devices to resist local electromagnetic environment disturbances. Both EMI and EVS include radiation and conduction. EMC certification is a mandatory requirement for any electronic device, and EMI is an important part of EMC p>
What is the use of EMI certification:In other circuits or devices, EMI circuits are often used or other measures are taken to prevent and suppress EMI, such as the terminal resistance of communication cables, computer chassis, transformer shielding, using paramagnetic or diamagnetic materials to guide or prevent the passage of electromagnetic fields, and so on.
. EMI is a mandatory requirement for electrical certification (such as CCC certification) before the product is launched on the market. We often see reports or complaints about some products that fail due to EMI. Our common switch power supply has a two winding inductance at the entrance, which is a common mode suppression inductance and also plays a role in reducing EMI. In addition, some data cables come with a large bag at both ends (such as the data cable for computer color displays or some digital cameras), which actually contains a magnetic ring to reduce EMI P>
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China