The Experts below are selected from a list of 7650 Experts worldwide ranked by ideXlab platform
Jaehwan Kim - One of the best experts on this subject based on the ideXlab platform.
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frequency selective surface based chipless passive rfid sensor for detecting Damage Location
Structural Control & Health Monitoring, 2017Co-Authors: M.d. Imdul Reza Shishir, Seongcheol Mun, Hyun Chan Kim, Jeong Woong Kim, Jaehwan KimAbstract:Summary Various types of wireless sensor systems are used for structural health monitoring. Especially, chipless wireless sensors are useful in harsh environmental conditions of high temperature and toxic chemicals. This paper reports a chipless passive structural health monitoring sensor made with frequency-selective surface (FSS) array for detecting Damage Location. FSS is a kind of microwave meta-material antenna that is selective by its electromagnetic characteristics associated with geometrical shape and electrical impedance. An FSS-array-based wireless sensor was made on a flexible substrate that can be easily attached to arbitrary structures. When microwaves are applied to the FSS via a single horn antenna, the sensor senses its reflection changes, and by scanning the horn antenna, the Location of Damage is detected. Design, fabrication, and characterization of cross-type FSS array are carried out, and a computer simulation is performed for comparison.
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Frequency‐selective surface‐based chipless passive RFID sensor for detecting Damage Location
Structural Control and Health Monitoring, 2017Co-Authors: M.d. Imdul Reza Shishir, Seongcheol Mun, Hyun Chan Kim, Jeong Woong Kim, Jaehwan KimAbstract:Summary Various types of wireless sensor systems are used for structural health monitoring. Especially, chipless wireless sensors are useful in harsh environmental conditions of high temperature and toxic chemicals. This paper reports a chipless passive structural health monitoring sensor made with frequency-selective surface (FSS) array for detecting Damage Location. FSS is a kind of microwave meta-material antenna that is selective by its electromagnetic characteristics associated with geometrical shape and electrical impedance. An FSS-array-based wireless sensor was made on a flexible substrate that can be easily attached to arbitrary structures. When microwaves are applied to the FSS via a single horn antenna, the sensor senses its reflection changes, and by scanning the horn antenna, the Location of Damage is detected. Design, fabrication, and characterization of cross-type FSS array are carried out, and a computer simulation is performed for comparison.
M.d. Imdul Reza Shishir - One of the best experts on this subject based on the ideXlab platform.
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frequency selective surface based chipless passive rfid sensor for detecting Damage Location
Structural Control & Health Monitoring, 2017Co-Authors: M.d. Imdul Reza Shishir, Seongcheol Mun, Hyun Chan Kim, Jeong Woong Kim, Jaehwan KimAbstract:Summary Various types of wireless sensor systems are used for structural health monitoring. Especially, chipless wireless sensors are useful in harsh environmental conditions of high temperature and toxic chemicals. This paper reports a chipless passive structural health monitoring sensor made with frequency-selective surface (FSS) array for detecting Damage Location. FSS is a kind of microwave meta-material antenna that is selective by its electromagnetic characteristics associated with geometrical shape and electrical impedance. An FSS-array-based wireless sensor was made on a flexible substrate that can be easily attached to arbitrary structures. When microwaves are applied to the FSS via a single horn antenna, the sensor senses its reflection changes, and by scanning the horn antenna, the Location of Damage is detected. Design, fabrication, and characterization of cross-type FSS array are carried out, and a computer simulation is performed for comparison.
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Frequency‐selective surface‐based chipless passive RFID sensor for detecting Damage Location
Structural Control and Health Monitoring, 2017Co-Authors: M.d. Imdul Reza Shishir, Seongcheol Mun, Hyun Chan Kim, Jeong Woong Kim, Jaehwan KimAbstract:Summary Various types of wireless sensor systems are used for structural health monitoring. Especially, chipless wireless sensors are useful in harsh environmental conditions of high temperature and toxic chemicals. This paper reports a chipless passive structural health monitoring sensor made with frequency-selective surface (FSS) array for detecting Damage Location. FSS is a kind of microwave meta-material antenna that is selective by its electromagnetic characteristics associated with geometrical shape and electrical impedance. An FSS-array-based wireless sensor was made on a flexible substrate that can be easily attached to arbitrary structures. When microwaves are applied to the FSS via a single horn antenna, the sensor senses its reflection changes, and by scanning the horn antenna, the Location of Damage is detected. Design, fabrication, and characterization of cross-type FSS array are carried out, and a computer simulation is performed for comparison.
Wieslaw J. Staszewski - One of the best experts on this subject based on the ideXlab platform.
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Damage Location by ultrasonic Lamb waves and piezoelectric rosettes
Journal of Intelligent Material Systems and Structures, 2014Co-Authors: Piotr Kijanka, Arun Manohar, Francesco Lanza Di Scalea, Wieslaw J. StaszewskiAbstract:An approach based on macro-fiber composite transducer rosettes and ultrasonic guided waves is proposed for Damage Location in plate-like structures. By using the directivity behaviour of the three macro-fiber composite sensors in each rosette, the direction of an incoming wave generated by scattering from Damage can be estimated without knowledge of the wave velocity in the structure. Two rosettes suffice to identify the Location of a scatterer in a planar structure. The technique does not have the drawbacks of time-of-flight triangulation, requiring information on wave velocity that complicates the Damage Location when testing anisotropic materials, tapered sections or any structure under temperature fluctuations. The effectiveness of the piezoelectric rosette method is tested experimentally on an aluminium plate with a simulated Damage subjected to temperature variation.
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Damage Location by ultrasonic Lamb waves and piezoelectric rosettes
Health Monitoring of Structural and Biological Systems 2014, 2014Co-Authors: Piotr Kijanka, Arun Manohar, Francesco Lanza Di Scalea, Wieslaw J. StaszewskiAbstract:An approach based on Macro-Fiber Composite (MFC) transducer rosettes and ultrasonic guided waves is proposed for Damage Location in plate-like structures. By using the directivity behaviour of the three MFC sensors in each rosette, the direction of an incoming wave generated by scattering from Damage can be estimated without knowledge of the wave velocity in monitored structures. Two rosettes suffice to identify the Location of a scatterer in a planar structure. The technique does not have any drawbacks of time-of-flight triangulation that requires information on wave velocity and thus complicates Damage Location when testing anisotropic materials, tapered sections, or any structure under temperature fluctuations. The effectiveness of the piezoelectric rosette method is tested experimentally using an aluminium plate with a simulated Damage subjected to temperature variation.
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impact Damage Location in composite structures using optimized sensor triangulation procedure
Smart Materials and Structures, 2003Co-Authors: P T Coverley, Wieslaw J. StaszewskiAbstract:Impacts, which may occur during manufacture, service or maintenance, are the major cause of in-service Damage to composite structures. Many investigations have been undertaken in order to assess and locate impact Damage. A new method of impact Location in composite materials is proposed in this paper. It based on a classical sensor triangulation methodology and combines experimental strain wave velocity analysis with an optimization genetic algorithm procedure. The method is validated on a composite panel with embedded piezoceramic sensors. The paper shows that the new method has potential for effective impact Damage Location. Strain data from only three piezoceramic sensors provide good impact Location results, avoiding learning and modelling difficulties associated with other techniques.
Jeong Woong Kim - One of the best experts on this subject based on the ideXlab platform.
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frequency selective surface based chipless passive rfid sensor for detecting Damage Location
Structural Control & Health Monitoring, 2017Co-Authors: M.d. Imdul Reza Shishir, Seongcheol Mun, Hyun Chan Kim, Jeong Woong Kim, Jaehwan KimAbstract:Summary Various types of wireless sensor systems are used for structural health monitoring. Especially, chipless wireless sensors are useful in harsh environmental conditions of high temperature and toxic chemicals. This paper reports a chipless passive structural health monitoring sensor made with frequency-selective surface (FSS) array for detecting Damage Location. FSS is a kind of microwave meta-material antenna that is selective by its electromagnetic characteristics associated with geometrical shape and electrical impedance. An FSS-array-based wireless sensor was made on a flexible substrate that can be easily attached to arbitrary structures. When microwaves are applied to the FSS via a single horn antenna, the sensor senses its reflection changes, and by scanning the horn antenna, the Location of Damage is detected. Design, fabrication, and characterization of cross-type FSS array are carried out, and a computer simulation is performed for comparison.
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Frequency‐selective surface‐based chipless passive RFID sensor for detecting Damage Location
Structural Control and Health Monitoring, 2017Co-Authors: M.d. Imdul Reza Shishir, Seongcheol Mun, Hyun Chan Kim, Jeong Woong Kim, Jaehwan KimAbstract:Summary Various types of wireless sensor systems are used for structural health monitoring. Especially, chipless wireless sensors are useful in harsh environmental conditions of high temperature and toxic chemicals. This paper reports a chipless passive structural health monitoring sensor made with frequency-selective surface (FSS) array for detecting Damage Location. FSS is a kind of microwave meta-material antenna that is selective by its electromagnetic characteristics associated with geometrical shape and electrical impedance. An FSS-array-based wireless sensor was made on a flexible substrate that can be easily attached to arbitrary structures. When microwaves are applied to the FSS via a single horn antenna, the sensor senses its reflection changes, and by scanning the horn antenna, the Location of Damage is detected. Design, fabrication, and characterization of cross-type FSS array are carried out, and a computer simulation is performed for comparison.
Hyun Chan Kim - One of the best experts on this subject based on the ideXlab platform.
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frequency selective surface based chipless passive rfid sensor for detecting Damage Location
Structural Control & Health Monitoring, 2017Co-Authors: M.d. Imdul Reza Shishir, Seongcheol Mun, Hyun Chan Kim, Jeong Woong Kim, Jaehwan KimAbstract:Summary Various types of wireless sensor systems are used for structural health monitoring. Especially, chipless wireless sensors are useful in harsh environmental conditions of high temperature and toxic chemicals. This paper reports a chipless passive structural health monitoring sensor made with frequency-selective surface (FSS) array for detecting Damage Location. FSS is a kind of microwave meta-material antenna that is selective by its electromagnetic characteristics associated with geometrical shape and electrical impedance. An FSS-array-based wireless sensor was made on a flexible substrate that can be easily attached to arbitrary structures. When microwaves are applied to the FSS via a single horn antenna, the sensor senses its reflection changes, and by scanning the horn antenna, the Location of Damage is detected. Design, fabrication, and characterization of cross-type FSS array are carried out, and a computer simulation is performed for comparison.
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Frequency‐selective surface‐based chipless passive RFID sensor for detecting Damage Location
Structural Control and Health Monitoring, 2017Co-Authors: M.d. Imdul Reza Shishir, Seongcheol Mun, Hyun Chan Kim, Jeong Woong Kim, Jaehwan KimAbstract:Summary Various types of wireless sensor systems are used for structural health monitoring. Especially, chipless wireless sensors are useful in harsh environmental conditions of high temperature and toxic chemicals. This paper reports a chipless passive structural health monitoring sensor made with frequency-selective surface (FSS) array for detecting Damage Location. FSS is a kind of microwave meta-material antenna that is selective by its electromagnetic characteristics associated with geometrical shape and electrical impedance. An FSS-array-based wireless sensor was made on a flexible substrate that can be easily attached to arbitrary structures. When microwaves are applied to the FSS via a single horn antenna, the sensor senses its reflection changes, and by scanning the horn antenna, the Location of Damage is detected. Design, fabrication, and characterization of cross-type FSS array are carried out, and a computer simulation is performed for comparison.
