How to perform frequency component detection? What are the testing standards and items? Today, BAIJIAN will introduce the relevant content of frequency component detection to everyone
The main classification of frequency components
Slope frequency components
The circuit of slope frequency components is relatively simple, but its resonance characteristic curve is not a straight line when the circuit is detuned, so the linearity of frequency discrimination characteristics is poor.
Anchor phase frequency component
The phase frequency component includes two main parts: frequency phase converter and phase detector.
. The frequency phase converter is composed of a capacitor coupled (CM) dual tuning circuit, which converts the instantaneous frequency change of the input frequency modulation wave V12 into the phase change of Vab Anchor point ceramic frequency element is a ceramic filtering element with phase shift and frequency discrimination characteristics, mainly used in audio intermediate frequency amplification or demodulation circuits of televisions or video recorders, as well as frequency component circuits of FM radio. It is divided into two types: balanced type and differential type. The former is used for synchronous phase discriminator for balanced frequency demodulation, while the latter is used for differential peak frequency element for differential differential frequency demodulationWhere is frequency component detection done?
BAIJIAN cooperates with nearly a thousand laboratories nationwide, with complete CMA/CNAS qualifications. We can arrange and provide frequency component testing services for you nearby, and provide authentic and effective frequency component testing reports What is the testing fee
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