Establishment of magnetic sensors in above ground marking system

Magnetic sensors used in Above Ground Markers (AGM) to measure the magnetic field signals are one of the main parts of AGM. By collecting the change of magnetic field parameter using magnetic sensors, AGM can record the precise time when MFL_PIG is passing by the AGM. In this paper, the magnetic sen...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2017-07, Vol.220 (1), p.12024
Main Authors: Sun, L Y, Li, Y B, Wu, Y T, Li, W P, Wu, P Q
Format: Article
Language:English
Subjects:
Ability tests
Coils
Magnetic fields
Sensors
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Summary:Magnetic sensors used in Above Ground Markers (AGM) to measure the magnetic field signals are one of the main parts of AGM. By collecting the change of magnetic field parameter using magnetic sensors, AGM can record the precise time when MFL_PIG is passing by the AGM. In this paper, the magnetic sensors, such as induced coil and magneto-resistive sensor, are investigated in characteristics and performance of measurement. With advantages of low cost, high resolution and wide range of measurement, the induced coil is adopted in a novel AGM. The traction test, seal ability test and temperature test show that the AGM with induced coil as magnetic sensor works well under extreme condition and reacts to change the magnetic field with high sensibility.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/220/1/012024