Selection of Shear Horizontal Wave Transducers for Robotic Nondestructive Inspection in Harsh Environments
Harsh environments and confined spaces require that nondestructive inspections be conducted with robotic systems. Ultrasonic guided waves are well suited for robotic systems because they can provide efficient volumetric coverage when inspecting for various types of damage, including cracks and corro...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2016-12-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/17/1/5 |
| _version_ | 1828353820327936000 |
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| author | Sungho Choi Hwanjeong Cho Cliff J. Lissenden |
| author_facet | Sungho Choi Hwanjeong Cho Cliff J. Lissenden |
| author_sort | Sungho Choi |
| collection | DOAJ |
| description | Harsh environments and confined spaces require that nondestructive inspections be conducted with robotic systems. Ultrasonic guided waves are well suited for robotic systems because they can provide efficient volumetric coverage when inspecting for various types of damage, including cracks and corrosion. Shear horizontal guided waves are especially well suited for robotic inspection because they are sensitive to cracks oriented perpendicular or parallel to the wave propagation direction and can be generated with electromagnetic acoustic transducers (EMATs) and magnetostrictive transducers (MSTs). Both types of transducers are investigated for crack detection in a stainless steel plate. The MSTs require the robot to apply a compressive normal force that creates frictional force coupling. However, the coupling is observed to be very dependent upon surface roughness and surface debris. The EMATs are coupled through the Lorentz force and are thus noncontact, although they depend on the lift off between transducer and substrate. After comparing advantages and disadvantages of each transducer for robotic inspection the EMATs are selected for application to canisters that store used nuclear fuel. |
| first_indexed | 2024-04-14T02:13:57Z |
| format | Article |
| id | doaj.art-0d52278ad1cb43448d4d09318ba6964f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T02:13:57Z |
| publishDate | 2016-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-0d52278ad1cb43448d4d09318ba6964f2022-12-22T02:18:16ZengMDPI AGSensors1424-82202016-12-01171510.3390/s17010005s17010005Selection of Shear Horizontal Wave Transducers for Robotic Nondestructive Inspection in Harsh EnvironmentsSungho Choi0Hwanjeong Cho1Cliff J. Lissenden2Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USADepartment of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USADepartment of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USAHarsh environments and confined spaces require that nondestructive inspections be conducted with robotic systems. Ultrasonic guided waves are well suited for robotic systems because they can provide efficient volumetric coverage when inspecting for various types of damage, including cracks and corrosion. Shear horizontal guided waves are especially well suited for robotic inspection because they are sensitive to cracks oriented perpendicular or parallel to the wave propagation direction and can be generated with electromagnetic acoustic transducers (EMATs) and magnetostrictive transducers (MSTs). Both types of transducers are investigated for crack detection in a stainless steel plate. The MSTs require the robot to apply a compressive normal force that creates frictional force coupling. However, the coupling is observed to be very dependent upon surface roughness and surface debris. The EMATs are coupled through the Lorentz force and are thus noncontact, although they depend on the lift off between transducer and substrate. After comparing advantages and disadvantages of each transducer for robotic inspection the EMATs are selected for application to canisters that store used nuclear fuel.http://www.mdpi.com/1424-8220/17/1/5electromagnetic acoustic transducers (EMATs)magnetostrictive transducers (MSTs)shear horizontal (SH) guided wavesrobotic nondestructive inspection |
| spellingShingle | Sungho Choi Hwanjeong Cho Cliff J. Lissenden Selection of Shear Horizontal Wave Transducers for Robotic Nondestructive Inspection in Harsh Environments Sensors electromagnetic acoustic transducers (EMATs) magnetostrictive transducers (MSTs) shear horizontal (SH) guided waves robotic nondestructive inspection |
| title | Selection of Shear Horizontal Wave Transducers for Robotic Nondestructive Inspection in Harsh Environments |
| title_full | Selection of Shear Horizontal Wave Transducers for Robotic Nondestructive Inspection in Harsh Environments |
| title_fullStr | Selection of Shear Horizontal Wave Transducers for Robotic Nondestructive Inspection in Harsh Environments |
| title_full_unstemmed | Selection of Shear Horizontal Wave Transducers for Robotic Nondestructive Inspection in Harsh Environments |
| title_short | Selection of Shear Horizontal Wave Transducers for Robotic Nondestructive Inspection in Harsh Environments |
| title_sort | selection of shear horizontal wave transducers for robotic nondestructive inspection in harsh environments |
| topic | electromagnetic acoustic transducers (EMATs) magnetostrictive transducers (MSTs) shear horizontal (SH) guided waves robotic nondestructive inspection |
| url | http://www.mdpi.com/1424-8220/17/1/5 |
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