Field Validation of a Magnetic Sensor to Monitor Borehole Deviation during Tunnel Excavation
In this article, a magnetic sensor is proposed to monitor borehole deviation during tunnel excavation. It is made by piling four super-strong N42 NdFeB cylinder magnets and then encasing them in an aluminum alloy hollow cylinder. The distribution of the magnetic field produced by the magnetic sensor...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-08-01
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| Series: | Materials |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1944/11/9/1511 |