The achievements of the science and technology projects of Fujian Provincial Quality Inspection Institute reached the domestic advanced level

[China Instrument Network Instrument R&D] Recently, the “Wire and Cable Intelligent Thickness Measurement System” project of the Fujian Provincial Bureau of Quality and Technical Supervision undertaken by the Fujian Provincial Quality Inspection Institute successfully passed the acceptance and the research results have reached the domestic advanced level.

The provisions for insulation thickness in the unified cable standards are obviously of positive significance in terms of contributing to the improvement of technical performance, ensuring product quality, and meeting the requirements for use. However, after China's accession to the WTO, domestic and foreign products of high-voltage cables The access market mainly uses the IEC standard as a guideline. In general foreign high-voltage cable insulation is relatively thin, and domestic manufacturers have the ability to improve the process and improve quality to improve the original factors that affect the insulation thickness, if the domestic implementation of the original thickness standard is still bound to make many companies will lose their participation in the international Fair competition opportunities. Therefore, real-time detection of the thickness of the insulation layer can know the thickness value in real time, and ensure the thickness uniformity of the insulating layer of the cable at each place, greatly improving the quality of the domestic cable, making it more in line with national standards.

At present, the cable thickness gauges on the market are mainly pointer thickness gauges. The data is read by manual visual inspection. The measurement error is large, and the wear of the machine during operation is large and the reliability is lacking. In order to solve the above problems, the Institute of Science and Technology of the People's Republic of China uses capacitive sensing technology to develop automatic data collection and processing functions. It has the advantages of easy operation, high precision, and reduced human influence. It has achieved a high resolution of dumbbell products and thin slices of cable products. High-accuracy measurement greatly improves detection efficiency and has strong practicality.

(Original title: Provincial Science and Technology Institute Provincial Bureau of Science and Technology Project Research Achievements have reached the domestic advanced level)