I-touch based phase shift reflectometry for shape measurement

In most industry, inspection is the key in producing quality products. As demand for quality products has been progressively vital to end-users, it is a must to have a top-notch quality control requirements and this can be done using Non Destructive Testing (NDT). There are many ways to conduct NDT...

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Main Author: Ahmad Zaki Jama Ludin
Other Authors: Anand Krishna Asundi
Format: Final Year Project
Language:English
Published: 2014
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Online Access:http://hdl.handle.net/10356/60947
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-609472023-03-04T18:29:17Z I-touch based phase shift reflectometry for shape measurement Ahmad Zaki Jama Ludin Anand Krishna Asundi School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering In most industry, inspection is the key in producing quality products. As demand for quality products has been progressively vital to end-users, it is a must to have a top-notch quality control requirements and this can be done using Non Destructive Testing (NDT). There are many ways to conduct NDT and the common methods are visual, liquid penetrant, magnetic, ultrasonic, eddy current and X-ray. However, the use of non-contact based method, like visual, has been attracting interest in recent development due to their merits. Visual method includes using tools like optical or laser instruments. This visual method, or also known as optical technique, introduces the reconstruction of three-dimensional profile (3D) of the object. This technique has been the focus of recent development. With development of reflective three-dimensional computer-vision method, specular reflective objects can be inspected by NDT. This method is also known as fringe reflection technique where fringe pattern that is displayed will be reflected by the specular reflective object. This has become an effective tool for three-dimensional measurement in specular reflective objects, as it is simple, robust and is appropriate for industrial environment. A technique used to measure the three-dimensional (3D) shape is a non-contact, fast and easy to implement technique. As been said earlier, it uses the principle of a generalized fringe reflection technique. It also employs the random phase-shifting, multi-frequency phase unwrapping and calibration system in order to determine the 3D shape with as much accuracy as possible. Most system that uses this technique is usually catered for huge objects. Therefore, a compact fringe reflection system has been developed. However, there is a need to make the system works and modify it in order to obtain a perfect fringe reflection system. It will be explored and experimented on to find the possible abilities of the compact fringe reflection system. Bachelor of Engineering (Mechanical Engineering) 2014-06-03T07:00:57Z 2014-06-03T07:00:57Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60947 en Nanyang Technological University 117 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering
spellingShingle DRNTU::Engineering::Mechanical engineering
Ahmad Zaki Jama Ludin
I-touch based phase shift reflectometry for shape measurement
description In most industry, inspection is the key in producing quality products. As demand for quality products has been progressively vital to end-users, it is a must to have a top-notch quality control requirements and this can be done using Non Destructive Testing (NDT). There are many ways to conduct NDT and the common methods are visual, liquid penetrant, magnetic, ultrasonic, eddy current and X-ray. However, the use of non-contact based method, like visual, has been attracting interest in recent development due to their merits. Visual method includes using tools like optical or laser instruments. This visual method, or also known as optical technique, introduces the reconstruction of three-dimensional profile (3D) of the object. This technique has been the focus of recent development. With development of reflective three-dimensional computer-vision method, specular reflective objects can be inspected by NDT. This method is also known as fringe reflection technique where fringe pattern that is displayed will be reflected by the specular reflective object. This has become an effective tool for three-dimensional measurement in specular reflective objects, as it is simple, robust and is appropriate for industrial environment. A technique used to measure the three-dimensional (3D) shape is a non-contact, fast and easy to implement technique. As been said earlier, it uses the principle of a generalized fringe reflection technique. It also employs the random phase-shifting, multi-frequency phase unwrapping and calibration system in order to determine the 3D shape with as much accuracy as possible. Most system that uses this technique is usually catered for huge objects. Therefore, a compact fringe reflection system has been developed. However, there is a need to make the system works and modify it in order to obtain a perfect fringe reflection system. It will be explored and experimented on to find the possible abilities of the compact fringe reflection system.
author2 Anand Krishna Asundi
author_facet Anand Krishna Asundi
Ahmad Zaki Jama Ludin
format Final Year Project
author Ahmad Zaki Jama Ludin
author_sort Ahmad Zaki Jama Ludin
title I-touch based phase shift reflectometry for shape measurement
title_short I-touch based phase shift reflectometry for shape measurement
title_full I-touch based phase shift reflectometry for shape measurement
title_fullStr I-touch based phase shift reflectometry for shape measurement
title_full_unstemmed I-touch based phase shift reflectometry for shape measurement
title_sort i-touch based phase shift reflectometry for shape measurement
publishDate 2014
url http://hdl.handle.net/10356/60947
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