The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Vues en texte intégral
85
Cet article décrit une méthode de mesure de la tension asymétrique du bruit conduit à l'aide d'un système de mesure flottant. Ici, flottant signifie qu’il n’y a aucune connexion physique avec la masse de référence. La méthode fonctionne en corrigeant la tension mesurée à la tension asymétrique souhaitée en utilisant la capacité entre l'instrument de mesure et le plan de masse de référence agissant comme chemin de retour du bruit électromagnétique conduit. L'instrument de mesure de capacité existant nécessite une sonde en contact avec le sol, il est donc difficile à utiliser pour mesurer sur site la capacité parasite à la terre sur les sites de dépannage où le plan de masse n'est pas exposé ou où aucun point de connexion à la terre n'est disponible. Les auteurs ont développé une méthode de mesure de la capacité parasite à la terre qui ne nécessite pas de connexion physique de la sonde au plan de masse. La méthode développée peut être utilisée pour estimer la capacité entre l'instrument de mesure et le plan du sol même si la distance et la permittivité relative de l'espace sont inconnues. Et un procédé est proposé pour corriger la tension mesurée avec le système de mesure flottant afin d'obtenir la tension asymétrique du bruit en utilisant la capacité mesurée à la terre. Dans l'expérience, la tension asymétrique d'une onde sinusoïdale transmise sur un câble coaxial a été mesurée avec un oscilloscope flottant dans une salle blindée et la tension mesurée a été corrigée à 2 dB près de la tension attendue en utilisant la capacité mesurée avec la méthode développée. De plus, la tension d'une onde rectangulaire mesurée avec l'oscilloscope flottant, qui affiche l'affaissement provoqué par la capacité parasite à la terre, a été corrigée pour obtenir une onde rectangulaire sans affaissement. Cela signifie que la phase de la tension asymétrique peut également être corrigée par la capacité parasite mesurée. A partir de ces résultats, l’efficacité des méthodes proposées est démontrée.
Naruto ARAI
NTT Network Technology Laboratories
Ken OKAMOTO
NTT Network Technology Laboratories
Jun KATO
NTT Network Technology Laboratories
Yoshiharu AKIYAMA
NTT Advanced Technology Corp.
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Copier
Naruto ARAI, Ken OKAMOTO, Jun KATO, Yoshiharu AKIYAMA, "Method of Measuring Conducted Noise Voltage with a Floating Measurement System to Ground" in IEICE TRANSACTIONS on Communications,
vol. E103-B, no. 9, pp. 903-910, September 2020, doi: 10.1587/transcom.2019MCP0001.
Abstract: This paper describes a method of measuring the unsymmetric voltage of conducted noise using a floating measurement system. Here, floating means that there is no physical connection to the reference ground. The method works by correcting the measured voltage to the desired unsymmetric voltage using the capacitance between the measurement instrument and the reference ground plane acting as the return path of the conducted electromagnetic noise. The existing capacitance measurement instrument needs a probe in contact with the ground, so it is difficult to use for on-site measurement of stray capacitance to ground at troubleshooting sites where the ground plane is not exposed or no ground connection point is available. The authors have developed a method of measuring stray capacitance to ground that does not require physical connection of the probe to the ground plane. The developed method can be used to estimate the capacitance between the measurement instrument and ground plane even if the distance and relative permittivity of the space are unknown. And a method is proposed for correcting the voltage measured with the floating measurement system to obtain the unsymmetric voltage of the noise by using the measured capacitance to ground. In the experiment, the unsymmetric voltage of a sinusoidal wave transmitting on a co-axial cable was measured with a floating oscilloscope in a shield room and the measured voltage was corrected to within 2dB of expected voltage by using the capacitance measured with the developed method. In addition, the voltage of a rectangular wave measured with the floating oscilloscope, which displays sag caused by the stray capacitance to ground, was corrected to a rectangular wave without sag. This means that the phase of the unsymmetric voltage can also be corrected by the measured stray capacitance. From these results, the effectiveness of the proposed methods is shown.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2019MCP0001/_p
Copier
@ARTICLE{e103-b_9_903,
author={Naruto ARAI, Ken OKAMOTO, Jun KATO, Yoshiharu AKIYAMA, },
journal={IEICE TRANSACTIONS on Communications},
title={Method of Measuring Conducted Noise Voltage with a Floating Measurement System to Ground},
year={2020},
volume={E103-B},
number={9},
pages={903-910},
abstract={This paper describes a method of measuring the unsymmetric voltage of conducted noise using a floating measurement system. Here, floating means that there is no physical connection to the reference ground. The method works by correcting the measured voltage to the desired unsymmetric voltage using the capacitance between the measurement instrument and the reference ground plane acting as the return path of the conducted electromagnetic noise. The existing capacitance measurement instrument needs a probe in contact with the ground, so it is difficult to use for on-site measurement of stray capacitance to ground at troubleshooting sites where the ground plane is not exposed or no ground connection point is available. The authors have developed a method of measuring stray capacitance to ground that does not require physical connection of the probe to the ground plane. The developed method can be used to estimate the capacitance between the measurement instrument and ground plane even if the distance and relative permittivity of the space are unknown. And a method is proposed for correcting the voltage measured with the floating measurement system to obtain the unsymmetric voltage of the noise by using the measured capacitance to ground. In the experiment, the unsymmetric voltage of a sinusoidal wave transmitting on a co-axial cable was measured with a floating oscilloscope in a shield room and the measured voltage was corrected to within 2dB of expected voltage by using the capacitance measured with the developed method. In addition, the voltage of a rectangular wave measured with the floating oscilloscope, which displays sag caused by the stray capacitance to ground, was corrected to a rectangular wave without sag. This means that the phase of the unsymmetric voltage can also be corrected by the measured stray capacitance. From these results, the effectiveness of the proposed methods is shown.},
keywords={},
doi={10.1587/transcom.2019MCP0001},
ISSN={1745-1345},
month={September},}
Copier
TY - JOUR
TI - Method of Measuring Conducted Noise Voltage with a Floating Measurement System to Ground
T2 - IEICE TRANSACTIONS on Communications
SP - 903
EP - 910
AU - Naruto ARAI
AU - Ken OKAMOTO
AU - Jun KATO
AU - Yoshiharu AKIYAMA
PY - 2020
DO - 10.1587/transcom.2019MCP0001
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E103-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2020
AB - This paper describes a method of measuring the unsymmetric voltage of conducted noise using a floating measurement system. Here, floating means that there is no physical connection to the reference ground. The method works by correcting the measured voltage to the desired unsymmetric voltage using the capacitance between the measurement instrument and the reference ground plane acting as the return path of the conducted electromagnetic noise. The existing capacitance measurement instrument needs a probe in contact with the ground, so it is difficult to use for on-site measurement of stray capacitance to ground at troubleshooting sites where the ground plane is not exposed or no ground connection point is available. The authors have developed a method of measuring stray capacitance to ground that does not require physical connection of the probe to the ground plane. The developed method can be used to estimate the capacitance between the measurement instrument and ground plane even if the distance and relative permittivity of the space are unknown. And a method is proposed for correcting the voltage measured with the floating measurement system to obtain the unsymmetric voltage of the noise by using the measured capacitance to ground. In the experiment, the unsymmetric voltage of a sinusoidal wave transmitting on a co-axial cable was measured with a floating oscilloscope in a shield room and the measured voltage was corrected to within 2dB of expected voltage by using the capacitance measured with the developed method. In addition, the voltage of a rectangular wave measured with the floating oscilloscope, which displays sag caused by the stray capacitance to ground, was corrected to a rectangular wave without sag. This means that the phase of the unsymmetric voltage can also be corrected by the measured stray capacitance. From these results, the effectiveness of the proposed methods is shown.
ER -