Alternating current (AC) interference testing

Alternating current (AC) interference testing is a non-destructive method used to assess the integrity of pipelines and detect potential metal loss caused by corrosion or other anomalies. In this testing method, an AC voltage is induced onto the pipeline and the resulting AC current is measured to detect changes in the electromagnetic field around the pipeline. These changes indicate the presence of metal loss, corrosion, or other anomalies that could affect the pipeline's integrity. This testing is typically performed in conjunction with other non-destructive evaluation methods such as ultrasonic testing or magnetic flux leakage testing to provide a comprehensive assessment of the pipeline. The results of AC interference testing can be used to prioritize areas for further investigation and repair, as well as to monitor the effectiveness of corrosion control measures over time.