A coil usually refers to a circular wire winding, and the most common coil applications include motors, inductors, transformers, and circular antennas. The coil in a circuit refers to an inductor. Guide wires are wound one by one, and the wires are insulated from each other. Insulating tubes can be hollow or contain iron or magnetic particle cores, abbreviated as inductors. Inductance can also be divided into fixed inductance and variable inductance, and fixed inductance coil is abbreviated as inductance or coil. Represented by L, the units are Henry (H), milliHenry (mH), and microHenry (uH), with 1H=10 ^ 3mH=10 ^ 6uH
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