How to do the test report? Why do you need to do product inspection? Third-party testing institutions provide product testing services in various industries, and there are many cooperative laboratories across the country, mainly serving companies, enterprises, individual businesses, universities and scientific research.
Sample size: according to the size of the sample to choose the sample or door-to-door
display style: electronic
version of the detection cycle: 3-15 working days (expedited).
DC/DC converters for electric vehicles are a type of machine used in electric vehicles. In electric vehicles powered by fuel cells, due to their soft output characteristics and unstable output voltage, a DC/DC converter needs to be added between the fuel cell and the inverter. The DC/DC converter mainly plays the following roles in fuel cell electric vehicles: (I) Voltage conversion: The output voltage of the fuel cell is transformed by the DC/DC converter and then supplied to the motor driver. (2) Stable voltage: The output voltage of the fuel cell is unstable, and it is regulated by a DC/DC converter closed-loop control system. Performance requirements for DC/DC converters: Based on the role and special operating requirements of DC/DC converters in fuel cell electric vehicles, DC/DC converters must meet the following requirements: (1) The converter is an energy transfer component, so it needs to meet the requirements of high conversion efficiency in order to improve energy utilization efficiency. (2) Due to the slow output response of the fuel cell, it is necessary to have good dynamic adjustment ability for the conversion device. (3) In order to improve the power density ratio of automobiles, small size and light weight of automotive components are required to enhance the transportation capacity of fuel cell electric vehicles and make them more practical. Therefore, DC/DC converters need to meet the requirements of small size and light weight
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 problems100% inspection 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 Chinarole of the test report:
1. Project bidding: issue an 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: issue a test report with legal effect to make consumers more assured;
4. Papers and scientific research: provide professional personalized testing needs;
5. Judicial services: provide scientific, fair and accurate testing data;
6. Diagnosis of industrial problems: verification and correction of problems in industrial production;