With the development of electronic technology in the past two years, more and more electronic products have emerged, which has increased electromagnetic interference, and some even affected our normal lives. Therefore, shielded products have emerged, and shielded boxes can be seen in various processing factories. So what is the purpose of shielding box detection Simply put, shielding boxes are mainly products that reduce the impact of personnel, save time, isolate external base station signals, and isolate interference from adjacent test stations. Therefore, in order to ensure the quality of the shielding box, testing is indispensable What are the functions of shielding box detection< p> 1. The shielding box isolates external base station signals and external interference signals 2. Absorb the RF signal inside the box, reduce interference
3. Reduce the impact of personnel, and make shielding testing more accurate 4. Save operation time and improve work efficiency. 5. The shielding box can isolate interference from adjacent testing equipment
2. Precautions for shielded box detection1. The receiving antenna should be kept vertical.
. When moving horizontally, it should be gentle and about 2cm away from the edge 2. RF cables should be made of high-quality original RF cables, otherwise measurement errors may occur 3. The peak value after closing the door should be more than 10dB higher than the noise. Only in this way can the difference (shielding rate) be accurately calculated 4. The edges and interfaces of the shielding box (such as DB9/DB25/USB) should be measured
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