Highly Sensitive Planar Hall Magnetoresistive Sensor for Magnetic Flux Leakage Pipeline Inspection
| Autor: | Van Sy Le, Hong Quang Pham, Duy Tuan Doan, Quang Hung Tran, Quang Ngan Pham, CheolGi Kim, Bang Viet Tran, Ferial Terki, Kunwoo Kim |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Magnetoresistance Acoustics Pipeline (computing) 010401 analytical chemistry Magnetic flux leakage Giant magnetoresistance 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Magnetic field Pipeline transport Planar Sensitivity (control systems) Electrical and Electronic Engineering 0210 nano-technology |
| Zdroj: | IEEE Transactions on Magnetics. 54:1-5 |
| ISSN: | 1941-0069 0018-9464 |
| Popis: | Magnetic flux leakage (MFL) detection is frequently used for oil and gas pipeline inspection, especially for evaluation of the integrity of pipelines. The success of the MFL technique depends on many parameters. However, a sensitive magnetic sensor is an important requirement. Therefore, magnetic field sensors based on different mechanisms have been developed and applied to the MFL technique. In this paper, we evidence for the first time the capability of an innovative device based on a planar Hall magnetoresistance sensor devoted to MFL detection. This promising prototype combines all the required qualifications such as high sensitivity, low thermal drift, and bipolar and linear responses to the magnetic field. New achievements are carried out on embedded sensors in a testing platform reflecting pipeline environments. The ultrasensitive magnetic mapping concludes to a convincing technical approach with a high potential application toward MFL inspection, especially for the detection of shallow defects appearing at near side, far side, and sub-surface of a pipe wall. |
| Databáze: | OpenAIRE |
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