Development of Ultrasonic Technique for Detection of Decay in Wooden Cross-Arms

Development of Ultrasonic Technique for Detection of Decay in Wooden Cross-Arms

A simple, economic, and accurate nondestructive measurement method has been developed to determine the quality of in-service wooden cross-arms. A wooden cross-arm is part of the pylon normally used to support high-power transmission line. The measurement system uses an ultrasonic pulse, 45kHz, to...

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Bibliographic Details
Main Author: Lai, Sook Kean
Format: Thesis
Language:English
English
Published: 2002
Subjects:
Ultrasonic waves - Industrial applications
Ultrasonic equipment
Online Access:http://psasir.upm.edu.my/id/eprint/9515/1/FSAS_2002_44.pdf
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spelling my-upm-ir.95152024-03-06T07:30:28Z Development of Ultrasonic Technique for Detection of Decay in Wooden Cross-Arms 2002-05 Lai, Sook Kean A simple, economic, and accurate nondestructive measurement method has been developed to determine the quality of in-service wooden cross-arms. A wooden cross-arm is part of the pylon normally used to support high-power transmission line. The measurement system uses an ultrasonic pulse, 45kHz, to propagate from transmitter to receiver. The transit time of the pulse is the basic parameter. Investigations show that the transit time is dependent on the distance between two transducers and needs a continuum medium. Other factors such as density, moisture content, fiber direction, continui1y of the medium. and sample thickness also influence the propagation of ultrasound An investigation has been done to find out the optimum condition for detection methods. The optimum condition was determined through various experimental methods such as C-Method, Upper Method, Direct Method, Indirect Method, and Semi-Direct Method. Ultrasonic waves - Industrial applications Ultrasonic equipment 2002-05 Thesis http://psasir.upm.edu.my/id/eprint/9515/ http://psasir.upm.edu.my/id/eprint/9515/1/FSAS_2002_44.pdf text en public masters Universiti Putra Malaysia Ultrasonic waves - Industrial applications Ultrasonic equipment Faculty of Science and Environmental Studies Khalid, Kaida English
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
English
advisor Khalid, Kaida
topic Ultrasonic waves - Industrial applications
Ultrasonic equipment
spellingShingle Ultrasonic waves - Industrial applications
Ultrasonic equipment

Lai, Sook Kean
Development of Ultrasonic Technique for Detection of Decay in Wooden Cross-Arms
description A simple, economic, and accurate nondestructive measurement method has been developed to determine the quality of in-service wooden cross-arms. A wooden cross-arm is part of the pylon normally used to support high-power transmission line. The measurement system uses an ultrasonic pulse, 45kHz, to propagate from transmitter to receiver. The transit time of the pulse is the basic parameter. Investigations show that the transit time is dependent on the distance between two transducers and needs a continuum medium. Other factors such as density, moisture content, fiber direction, continui1y of the medium. and sample thickness also influence the propagation of ultrasound An investigation has been done to find out the optimum condition for detection methods. The optimum condition was determined through various experimental methods such as C-Method, Upper Method, Direct Method, Indirect Method, and Semi-Direct Method.
format Thesis
qualification_level Master's degree
author Lai, Sook Kean
author_facet Lai, Sook Kean
author_sort Lai, Sook Kean
title Development of Ultrasonic Technique for Detection of Decay in Wooden Cross-Arms
title_short Development of Ultrasonic Technique for Detection of Decay in Wooden Cross-Arms
title_full Development of Ultrasonic Technique for Detection of Decay in Wooden Cross-Arms
title_fullStr Development of Ultrasonic Technique for Detection of Decay in Wooden Cross-Arms
title_full_unstemmed Development of Ultrasonic Technique for Detection of Decay in Wooden Cross-Arms
title_sort development of ultrasonic technique for detection of decay in wooden cross-arms
granting_institution Universiti Putra Malaysia
granting_department Faculty of Science and Environmental Studies
publishDate 2002
url http://psasir.upm.edu.my/id/eprint/9515/1/FSAS_2002_44.pdf
_version_ 1794018846051401728

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