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".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
A película superficial de um anel coletor é importante para o fenômeno de contato deslizante. O filme superficial é afetado pela temperatura atmosférica, umidade e pressão do ar. O principal objetivo do nosso estudo é examinar o efeito do gás oxigênio no fenômeno do contato deslizante. No presente experimento, examinamos a queda de tensão de contato para deslizamento contínuo quando a atmosfera muda de baixa pressão para pressão atmosférica pela introdução de oxigênio (O2 20%+N2 80%) ou gás nitrogênio. Como resultado, a queda de tensão do contato aumenta rapidamente com o aumento da pressão do gás e sua flutuação também se torna grande. Esses fenômenos são observados em ambos os casos de oxigênio (O2 20%+N2 80%) e introdução de nitrogênio. Os resultados mostram claramente que o aumento repentino da queda de tensão do contato é afetado por outros fatores além do filme de óxido. Na verdade, o filme de óxido não se forma na atmosfera de nitrogênio. Além disso, o coeficiente de atrito do anel de carbono e cobre é alterado na atmosfera ambiente. Infere-se a partir destes dados que a queda de tensão do contato pode ser afetada pelo coeficiente de atrito. Quando a pressão do gás diminui novamente, a queda de tensão de contato não sofre o efeito do gás ambiente. Portanto, apenas a resistência do filme de óxido parece afetar a queda de tensão no contato. Neste artigo, foi examinado o efeito do fenômeno de contato deslizante na queda de tensão de contato por adsorção de gás e geração de filme.
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Takahiro UENO, Koichiro SAWA, "Effect of Atmosphere Change on Contact Voltage Drop at Sliding Contact" in IEICE TRANSACTIONS on Electronics,
vol. E85-C, no. 7, pp. 1478-1485, July 2002, doi: .
Abstract: The surface film of a slip ring is important for the sliding contact phenomenon. The surface film is affected by atmospheric temperature, humidity and air pressure. The main objective of our study is to examine the effect of oxygen gas on the sliding contact phenomenon. In the present experiment, we examined the contact voltage drop for continuous sliding when the atmosphere is changed from low pressure to atmospheric pressure by introducing oxygen (O2 20%+N2 80%) or nitrogen gas. As a result, the contact voltage drop increases rapidly with increasing gas pressure, and its fluctuation also becomes large. These phenomena are observed in both cases of oxygen (O2 20%+N2 80%) and nitrogen introduction. The results clearly show that the sudden increase of contact voltage drop is affected by factors other than the oxide film. Actually, the oxide film is not formed in the nitrogen atmosphere. Furthermore, the frictional coefficient of carbon and copper ring is changed at ambient atmosphere. It is inferred from these data that the contact voltage drop may be affected by the frictional coefficient. When the gas pressure decreases again, the contact voltage drop does not suffer from the effect of ambient gas. Therefore, only the resistance of the oxide film appears to affect contact voltage drop. In this paper, the effect of sliding contact phenomenon on the contact voltage drop by gas adsorption and film generation was examined.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e85-c_7_1478/_p
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@ARTICLE{e85-c_7_1478,
author={Takahiro UENO, Koichiro SAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Effect of Atmosphere Change on Contact Voltage Drop at Sliding Contact},
year={2002},
volume={E85-C},
number={7},
pages={1478-1485},
abstract={The surface film of a slip ring is important for the sliding contact phenomenon. The surface film is affected by atmospheric temperature, humidity and air pressure. The main objective of our study is to examine the effect of oxygen gas on the sliding contact phenomenon. In the present experiment, we examined the contact voltage drop for continuous sliding when the atmosphere is changed from low pressure to atmospheric pressure by introducing oxygen (O2 20%+N2 80%) or nitrogen gas. As a result, the contact voltage drop increases rapidly with increasing gas pressure, and its fluctuation also becomes large. These phenomena are observed in both cases of oxygen (O2 20%+N2 80%) and nitrogen introduction. The results clearly show that the sudden increase of contact voltage drop is affected by factors other than the oxide film. Actually, the oxide film is not formed in the nitrogen atmosphere. Furthermore, the frictional coefficient of carbon and copper ring is changed at ambient atmosphere. It is inferred from these data that the contact voltage drop may be affected by the frictional coefficient. When the gas pressure decreases again, the contact voltage drop does not suffer from the effect of ambient gas. Therefore, only the resistance of the oxide film appears to affect contact voltage drop. In this paper, the effect of sliding contact phenomenon on the contact voltage drop by gas adsorption and film generation was examined.},
keywords={},
doi={},
ISSN={},
month={July},}
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TY - JOUR
TI - Effect of Atmosphere Change on Contact Voltage Drop at Sliding Contact
T2 - IEICE TRANSACTIONS on Electronics
SP - 1478
EP - 1485
AU - Takahiro UENO
AU - Koichiro SAWA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E85-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 2002
AB - The surface film of a slip ring is important for the sliding contact phenomenon. The surface film is affected by atmospheric temperature, humidity and air pressure. The main objective of our study is to examine the effect of oxygen gas on the sliding contact phenomenon. In the present experiment, we examined the contact voltage drop for continuous sliding when the atmosphere is changed from low pressure to atmospheric pressure by introducing oxygen (O2 20%+N2 80%) or nitrogen gas. As a result, the contact voltage drop increases rapidly with increasing gas pressure, and its fluctuation also becomes large. These phenomena are observed in both cases of oxygen (O2 20%+N2 80%) and nitrogen introduction. The results clearly show that the sudden increase of contact voltage drop is affected by factors other than the oxide film. Actually, the oxide film is not formed in the nitrogen atmosphere. Furthermore, the frictional coefficient of carbon and copper ring is changed at ambient atmosphere. It is inferred from these data that the contact voltage drop may be affected by the frictional coefficient. When the gas pressure decreases again, the contact voltage drop does not suffer from the effect of ambient gas. Therefore, only the resistance of the oxide film appears to affect contact voltage drop. In this paper, the effect of sliding contact phenomenon on the contact voltage drop by gas adsorption and film generation was examined.
ER -