Effect of AC Interference on CP Monitoring

机译：交流干扰对CP监控的影响

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Cathodic protection monitoring in the presence of simultaneous AC and DC interferencecould lead to erroneous measurements, since IR drop contribution due to both DC and ACcould heavily affect potential readings. Therefore to know the true potential (or truepolarization level), the ohmic drop contribution has to be eliminated. In literature there is lackof agreement about the correct procedure to measure the true potential in the presence of AC.Laboratory tests on carbon steel in soil simulating conditions were carried out focusing onpotential measurement problem in the presence of AC through standard potentialmeasurement procedure and the use of a potential probe. Results suggest the need of a propermethodology for potential measurement to determine reliably corrosion or cathodic protectionconditions.

机译：在同时存在AC和DC干扰的情况下进行阴极保护监控可能会导致错误的测量，因为DC和AC造成的IR下降会严重影响潜在的读数。因此，要知道真实电势（或真实极化水平），必须消除欧姆降的影响。在文献中，关于在存在交流电的情况下测量真实电势的正确程序缺乏共识。针对土壤中模拟碳素钢的实验室测试，通过标准电势测量程序和使用交流电的存在，着重研究了在交流电存在下的电势测量问题。一个潜在的探针。结果表明需要一种适当的方法进行电势测量以确定可靠的腐蚀或阴极保护条件。

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来源
《Eurocorr 2004》|2004年|1-9|共9页
会议地点 Nice(FR)
作者
Sara Goidanich; Luciano Lazzari; Marco Ormellese; MariaPia Pedeferri;
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作者单位

Politecnico di MilanoDipartimento di Chimica Materiali e Ingegneria Chimica 'Giulio Natta'Via Mancinelli 7 - 20131 Milano Italysara.goidanich@polimi.it;

Politecnico di MilanoDipartimento di Chimica Materiali e Ingegneria Chimica 'Giulio Natta'Via Mancinelli 7 - 20131 Milano Italy luciano.lazzari@polimi.it;

Politecnico di MilanoDipartimento di Chimica Materiali e Ingegneria Chimica 'Giulio Natta'Via Mancinelli 7 - 20131 Milano Italy marco.ormellese@polimi.it;

Dipartimento di Chimica Materiali e Ingegneria Chimica 'Giulio Natta'Via Mancinelli 7 - 20131 Milano Italy mariapia.pedeferri@polimi.it;

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关键词
AC interference; IR free potential; potential probe; cathodic protection;

机译：交流干扰；无红外电位；电位探针阴极保护;

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1. Effect of AC interference on cathodic protection monitoring [J] . M. Ormellese, S. Goidanich, L. Lazzari Corrosion Engineering, Science and Technology . 2011,第5期

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机译：基于mIG / maG过程的机载声学监测的焊接干扰检测基于mIG / maG过程声学监测的焊接干扰检测
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机译：电阻焊监测半人马座坦克55-0501-22,55-0501-23（aC-21，aC-22）最终报告

Effect of AC Interference on CP Monitoring

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