Measurement of the Length of Installed Rock Bolt Based on Stress Wave Reflection by Using a Giant Magnetostrictive (GMS) Actuator and a PZT Sensor

Measurement of the Length of Installed Rock Bolt Based on Stress Wave Reflection by Using a Giant Magnetostrictive (GMS) Actuator and a PZT Sensor

Rock bolts, as a type of reinforcing element, are widely adopted in underground excavations and civil engineering structures. Given the importance of rock bolts, the research outlined in this paper attempts to develop a portable non-destructive evaluation method for assessing the length of installed...

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Bibliographic Details
Main Authors: Mingzhang Luo, Weijie Li, Bo Wang, Qingqing Fu, Gangbing Song
Format: Article
Language:English
Published: MDPI AG 2017-02-01
Series:Sensors
Subjects:
rock bolt monitoring
determination of installed rock bolt length
giant magnetostrictive actuator
stress wave reflection
instant phases
non-destructive evaluation
Online Access:http://www.mdpi.com/1424-8220/17/3/444

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