A Magnetic Flux Leakage and Magnetostrictive Guided Wave Hybrid Transducer for Detecting Bridge Cables

Condition assessment of cables has gained considerable attention for the bridge safety. A magnetic flux leakage and magnetostrictive guided wave hybrid transducer is provided to inspect bridge cables. The similarities and differences between the two methods are investigated. The hybrid transducer fo...

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Main Authors: Jiang Xu, Xinjun Wu, Cheng Cheng, Anran Ben
Format: Article
Language:English
Published: MDPI AG 2012-01-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/12/1/518/
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author Jiang Xu
Xinjun Wu
Cheng Cheng
Anran Ben
author_facet Jiang Xu
Xinjun Wu
Cheng Cheng
Anran Ben
author_sort Jiang Xu
collection DOAJ
description Condition assessment of cables has gained considerable attention for the bridge safety. A magnetic flux leakage and magnetostrictive guided wave hybrid transducer is provided to inspect bridge cables. The similarities and differences between the two methods are investigated. The hybrid transducer for bridge cables consists of an aluminum framework, climbing modules, embedded magnetizers and a ribbon coil. The static axial magnetic field provided by the magnetizers meets the needs of the magnetic flux leakage testing and the magnetostrictive guided wave testing. The magnetizers also provide the attraction for the climbing modules. In the magnetic flux leakage testing for the free length of cable, the coil induces the axial leakage magnetic field. In the magnetostrictive guided wave testing for the anchorage zone, the coil provides a pulse high power variational magnetic field for generating guided waves; the coil induces the magnetic field variation for receiving guided waves. The experimental results show that the transducer with the corresponding inspection system could be applied to detect the broken wires in the free length and in the anchorage zone of bridge cables.
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spelling doaj.art-a3f8456efd024ac7bb645305c9bf54182022-12-22T03:19:30ZengMDPI AGSensors1424-82202012-01-0112151853310.3390/s120100518A Magnetic Flux Leakage and Magnetostrictive Guided Wave Hybrid Transducer for Detecting Bridge CablesJiang XuXinjun WuCheng ChengAnran BenCondition assessment of cables has gained considerable attention for the bridge safety. A magnetic flux leakage and magnetostrictive guided wave hybrid transducer is provided to inspect bridge cables. The similarities and differences between the two methods are investigated. The hybrid transducer for bridge cables consists of an aluminum framework, climbing modules, embedded magnetizers and a ribbon coil. The static axial magnetic field provided by the magnetizers meets the needs of the magnetic flux leakage testing and the magnetostrictive guided wave testing. The magnetizers also provide the attraction for the climbing modules. In the magnetic flux leakage testing for the free length of cable, the coil induces the axial leakage magnetic field. In the magnetostrictive guided wave testing for the anchorage zone, the coil provides a pulse high power variational magnetic field for generating guided waves; the coil induces the magnetic field variation for receiving guided waves. The experimental results show that the transducer with the corresponding inspection system could be applied to detect the broken wires in the free length and in the anchorage zone of bridge cables.http://www.mdpi.com/1424-8220/12/1/518/hybrid transducermagnetic flux leakage testingguided wavemagnetostrictive effectbridge cablenondestructive testing
spellingShingle Jiang Xu
Xinjun Wu
Cheng Cheng
Anran Ben
A Magnetic Flux Leakage and Magnetostrictive Guided Wave Hybrid Transducer for Detecting Bridge Cables
Sensors
hybrid transducer
magnetic flux leakage testing
guided wave
magnetostrictive effect
bridge cable
nondestructive testing
title A Magnetic Flux Leakage and Magnetostrictive Guided Wave Hybrid Transducer for Detecting Bridge Cables
title_full A Magnetic Flux Leakage and Magnetostrictive Guided Wave Hybrid Transducer for Detecting Bridge Cables
title_fullStr A Magnetic Flux Leakage and Magnetostrictive Guided Wave Hybrid Transducer for Detecting Bridge Cables
title_full_unstemmed A Magnetic Flux Leakage and Magnetostrictive Guided Wave Hybrid Transducer for Detecting Bridge Cables
title_short A Magnetic Flux Leakage and Magnetostrictive Guided Wave Hybrid Transducer for Detecting Bridge Cables
title_sort magnetic flux leakage and magnetostrictive guided wave hybrid transducer for detecting bridge cables
topic hybrid transducer
magnetic flux leakage testing
guided wave
magnetostrictive effect
bridge cable
nondestructive testing
url http://www.mdpi.com/1424-8220/12/1/518/
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