发明名称 |
Local electrochemical impedance spectroscopy (LEIS) for detecting coating defects in buried pipelines |
摘要 |
A system and associated methods for acquiring and analyzing LEIS data from a buried structure, such as a pipeline. A special probe having adjustable electrodes is placed in the soil above the structure. A voltage is applied to the structure, causing more current to emanate from a coating defect than from intact coating. The probe electrodes acquire a response signal, which is analyzed to detect the defect. |
申请公布号 |
US8310243(B2) |
申请公布日期 |
2012.11.13 |
申请号 |
US20100853986 |
申请日期 |
2010.08.10 |
申请人 |
SHUKLA PAVAN K.;MINTZ TODD S.;DASGUPTA BISWAJIT;FISHER JAY L.;PENSADO-RODRIGUEZ OSVALDO;SOUTHWEST RESEARCH INSTITUTE |
发明人 |
SHUKLA PAVAN K.;MINTZ TODD S.;DASGUPTA BISWAJIT;FISHER JAY L.;PENSADO-RODRIGUEZ OSVALDO |
分类号 |
G01R31/08;G01R27/08 |
主分类号 |
G01R31/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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