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A platform for research: civil engineering, architecture and urbanism
Guided wave inspection using magnetostrictive principle for cement coated pipe lines and rundown pipe lines
Guided waves (GW) or Long Range Ultrasonic Testing (LRUT) technique can be a very cost-effective technique for long-range piping and tubing inspection. Guided waves refer to mechanical waves in ultrasonic and sonic frequencies that propagate in a bounded medium (such as a pipe or rod) parallel to the plane of its boundary. These waves are called 'guided waves' because these waves are confined with the geometry and travels along the medium guided by the geometric boundaries. One of the most pronounced advantages of GW is that the technique is capable of covering 100 % of the component volume in a very short time. This work is based on use of unique method of generation of guided waves based on the magnetostrictive effect (Joule Effect) and inverse magnetostrictive effect (Villary Effect). This work provides and improves the defect detection capability of guided waves generated by magnetostrictive effect, in high temperature, cement coated pipes, rundown pipelines especially in refineries and power plants at different conditions. MATLAB has been used as a tool for averaging the signals to improve SNR (Signal to Noise Ratio). This works enables to improve sensitivity and resolution. For specific purposes in oil and power sector industries, many pipes are coated with the cement circumferentially either from inside or outside the pipe. To know the crack or working condition of cement coated pipelines guided waves have been used for defect detection.
Guided wave inspection using magnetostrictive principle for cement coated pipe lines and rundown pipe lines
Guided waves (GW) or Long Range Ultrasonic Testing (LRUT) technique can be a very cost-effective technique for long-range piping and tubing inspection. Guided waves refer to mechanical waves in ultrasonic and sonic frequencies that propagate in a bounded medium (such as a pipe or rod) parallel to the plane of its boundary. These waves are called 'guided waves' because these waves are confined with the geometry and travels along the medium guided by the geometric boundaries. One of the most pronounced advantages of GW is that the technique is capable of covering 100 % of the component volume in a very short time. This work is based on use of unique method of generation of guided waves based on the magnetostrictive effect (Joule Effect) and inverse magnetostrictive effect (Villary Effect). This work provides and improves the defect detection capability of guided waves generated by magnetostrictive effect, in high temperature, cement coated pipes, rundown pipelines especially in refineries and power plants at different conditions. MATLAB has been used as a tool for averaging the signals to improve SNR (Signal to Noise Ratio). This works enables to improve sensitivity and resolution. For specific purposes in oil and power sector industries, many pipes are coated with the cement circumferentially either from inside or outside the pipe. To know the crack or working condition of cement coated pipelines guided waves have been used for defect detection.
Guided wave inspection using magnetostrictive principle for cement coated pipe lines and rundown pipe lines
Geführte Schallwellenprüfung mittels magnetostriktiven Prinzipien für Zement beschichtete Rohrleitungen und Ablaufrohrleitungen
Singh, Dharmaveer (author) / Rao, Sudhakar R. (author)
2009
3 Seiten, 3 Bilder, 3 Quellen
Conference paper
English
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