Focusing on the problem of detecting metal tube's gap on continuous cold tube rolling line, this paper describes the necessity and advantages of detecting by eddy current leakage measure.
本文针对连续冷轧管生产线上的管缝探测这一实际课题，阐述用电涡流法实现监测的必要性与优越性。
2
The calculating formulas in the paper are available and convenient for computer aided design of focusing magnetic field of camera tube.
文中计算公式对于计算机辅助设计摄像管聚焦磁场是适用和方便的。
3
This paper introduces many advantages about fhe focusing system witha grid electrode for DGS LLLTV camera tube.