以波形分析法量測地下管線極化電位及管對地電位

Determination of the Pipeline Polarization Potential and Pipe-to-soil Potential by Potential Waveform Analysis

黃吉雄(J. H. Hwang) ； 黃基榮(C. J. Hwang) ； 趙憲麟(C. L. Jau) ； 吳建源(C. Y. Wu) ； 古永榮(Y. R. Gu)

《防蝕工程》 7卷3期 (1993/09) Pp. 38-44

https://doi.org/10.6376/JCCE.199309.0038

摘要

全波（或半波）整流器電輸出每秒有120（或60）次為零。波形分析法即利用整流器此一快速斷電器電象，即可不用將陰極防蝕電源斷電，而取得極化電位。

並列摘要

The current output of a full-wave (or half-wave) rectifier goes to zero 120(or 60) times every second. Thereby, the standard rectifier itself acts as a fast interruption circuit. The waveform analysis method is based on this phenomenon.
AD/DA card and microprocessor of comupter were used to read potential waveform data and a computer software was used to analyze waveform data. The pipe-to-soil potential and the polarization potential can be fastly obtained by above package.