| Presentation | 2009-07-17 A Study on the Voltage Rise in Pd Contacts Hiroyuki ISHIDA, Shunsuke SASAKI, Shosuke SUZUKI, Masanari TANIGUCHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The contact phenomena have the relationship to the asperities on the contact surface. Dr. Harada et al. clarified experimentally and theoretically the relationship between the surface roughness and contact resistance. The authors have observed the contact voltages from the time of the current flow through Pd contacts polished by some kinds of emery papers of which granularities were different. It must be caused by the both increase of the resistivity and the thermal expansion due to the temperature rise around the contact spot due to Joule heat by the current flow. In this paper, the temperature will be estimated with using the method of concentrated heat capacitance to the simplified structure model of cylindrical bridge between the electrodes and to the simplified energy input model that the heat energy concentrates to both of the bridge and contact spot. The study on the voltage rise will be carried out from the resistivity view point and thermal expansion view point, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Electrical Contacts / Contact Voltage / Contact Resistance / Surface Asperity / Resistivity / Thermal Expansion |
| Paper # | EMD2009-22 |
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| Conference Information | |
| Committee | EMD |
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| Conference Date | 2009/7/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Electromechanical Devices (EMD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on the Voltage Rise in Pd Contacts |
| Sub Title (in English) | |
| Keyword(1) | Electrical Contacts |
| Keyword(2) | Contact Voltage |
| Keyword(3) | Contact Resistance |
| Keyword(4) | Surface Asperity |
| Keyword(5) | Resistivity |
| Keyword(6) | Thermal Expansion |
| 1st Author's Name | Hiroyuki ISHIDA |
| 1st Author's Affiliation | Tohoku Bunka Gakuen University() |
| 2nd Author's Name | Shunsuke SASAKI |
| 2nd Author's Affiliation | Tohoku Bunka Gakuen University |
| 3rd Author's Name | Shosuke SUZUKI |
| 3rd Author's Affiliation | Tohoku Bunka Gakuen University |
| 4th Author's Name | Masanari TANIGUCHI |
| 4th Author's Affiliation | Tohoku Bunka Gakuen University |
| Date | 2009-07-17 |
| Paper # | EMD2009-22 |
| Volume (vol) | vol.109 |
| Number (no) | 138 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |