Analysis and evaluation of uncertainty for conducted and radiated emissions tests

Whenever an EMC measurement is made, there are numerous uncertainties in different parts of the measurement system and even in the EMC performance of the equipment under test (EUT) which is being measured. It is important to be able to estimate the overall uncertainty, in particular, the test set...

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Main Author:	Abdurrahim, Mohamed Emhemed
Format:	Thesis
Language:	English English English
Published:	2013
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.uthm.edu.my/1963/1/24p%20MOHAMED%20EMHEMED%20ABDURRAHIM.pdf http://eprints.uthm.edu.my/1963/2/MOHAMED%20EMHEMED%20ABDURRAHIM%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1963/3/MOHAMED%20EMHEMED%20ABDURRAHIM%20WATERMARK.pdf
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spelling	my-uthm-ep.19632021-10-14T05:45:00Z Analysis and evaluation of uncertainty for conducted and radiated emissions tests 2013-01 Abdurrahim, Mohamed Emhemed TK Electrical engineering. Electronics Nuclear engineering TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television Whenever an EMC measurement is made, there are numerous uncertainties in different parts of the measurement system and even in the EMC performance of the equipment under test (EUT) which is being measured. It is important to be able to estimate the overall uncertainty, in particular, the test setup and measurement equipment uncertainty. However, making repetitive measurements can reduce the measurement uncertainty, but often economics of time do not permit that. Therefore, a practical process, which is used to evaluate uncertainty in EMC measurement a, according to the principle of uncertainty and conditions in EMC measurement is presented. In this study, an efficient analysis of uncertainty for both radiated and conducted emissions tests is performed. The uncertainty of each contributor had been calculated and evaluating the reported expanded uncertainty of measurement is stated as the standard uncertainty of measurement. This standard uncertainty is multiplied by the coverage factor k=2, which for a normal distribution corresponds to a coverage probability of approximately 95%. The result of calculating the uncertainty for both conducted and radiated emission tests showed that the overall uncertainty of the system is high and it must be lowered by reducing the expanded uncertainty for the dominant contributors for both tests. In addition, the result of applying the concept of CISPR uncertainty for both conducted and radiated emission tests showed that non-compliance is deemed to occur for both EUT of both tests. This is due to the result that the measured disturbances increased by ( ), above the disturbance limit. 2013-01 Thesis http://eprints.uthm.edu.my/1963/ http://eprints.uthm.edu.my/1963/1/24p%20MOHAMED%20EMHEMED%20ABDURRAHIM.pdf text en public http://eprints.uthm.edu.my/1963/2/MOHAMED%20EMHEMED%20ABDURRAHIM%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1963/3/MOHAMED%20EMHEMED%20ABDURRAHIM%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Malaysia Fakulti Kejuruteraan Elektrik dan Elektronik
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK Electrical engineering Electronics Nuclear engineering TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering TK Electrical engineering Electronics Nuclear engineering Abdurrahim, Mohamed Emhemed Analysis and evaluation of uncertainty for conducted and radiated emissions tests
description	Whenever an EMC measurement is made, there are numerous uncertainties in different parts of the measurement system and even in the EMC performance of the equipment under test (EUT) which is being measured. It is important to be able to estimate the overall uncertainty, in particular, the test setup and measurement equipment uncertainty. However, making repetitive measurements can reduce the measurement uncertainty, but often economics of time do not permit that. Therefore, a practical process, which is used to evaluate uncertainty in EMC measurement a, according to the principle of uncertainty and conditions in EMC measurement is presented. In this study, an efficient analysis of uncertainty for both radiated and conducted emissions tests is performed. The uncertainty of each contributor had been calculated and evaluating the reported expanded uncertainty of measurement is stated as the standard uncertainty of measurement. This standard uncertainty is multiplied by the coverage factor k=2, which for a normal distribution corresponds to a coverage probability of approximately 95%. The result of calculating the uncertainty for both conducted and radiated emission tests showed that the overall uncertainty of the system is high and it must be lowered by reducing the expanded uncertainty for the dominant contributors for both tests. In addition, the result of applying the concept of CISPR uncertainty for both conducted and radiated emission tests showed that non-compliance is deemed to occur for both EUT of both tests. This is due to the result that the measured disturbances increased by ( ), above the disturbance limit.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Abdurrahim, Mohamed Emhemed
author_facet	Abdurrahim, Mohamed Emhemed
author_sort	Abdurrahim, Mohamed Emhemed
title	Analysis and evaluation of uncertainty for conducted and radiated emissions tests
title_short	Analysis and evaluation of uncertainty for conducted and radiated emissions tests
title_full	Analysis and evaluation of uncertainty for conducted and radiated emissions tests
title_fullStr	Analysis and evaluation of uncertainty for conducted and radiated emissions tests
title_full_unstemmed	Analysis and evaluation of uncertainty for conducted and radiated emissions tests
title_sort	analysis and evaluation of uncertainty for conducted and radiated emissions tests
granting_institution	Universiti Tun Hussein Malaysia
granting_department	Fakulti Kejuruteraan Elektrik dan Elektronik
publishDate	2013
url	http://eprints.uthm.edu.my/1963/1/24p%20MOHAMED%20EMHEMED%20ABDURRAHIM.pdf http://eprints.uthm.edu.my/1963/2/MOHAMED%20EMHEMED%20ABDURRAHIM%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1963/3/MOHAMED%20EMHEMED%20ABDURRAHIM%20WATERMARK.pdf
_version_	1747830887785955328

Analysis and evaluation of uncertainty for conducted and radiated emissions tests

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