| Presentation | 2020-07-03 Measurement of transient electric field at the occurrence of electrostatic discharge when a charged object approaches a grounded object Hajime Tomita, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Electrostatic discharge (ESD) is one of electromagnetic wave noise sources which affect the function of mechatronics equipment. Spark lengths, discharge currents and electric fields at the occurrence of ESD were measured when a charged object approached a grounded object. It was confirmed that spark lengths tended to shorten when approach speeds of the charged object increased. It was also confirmed that peak discharge currents tended to increase and rise times of discharge current tended to shorten when spark lengths shortened. Time change rates of electric field tended to become faster and amplitude spectra of electric field tended to increase when spark lengths shortened. Maximum values of time change rate of electric field at 138 mm away from the point where ESD occured correlated with peak discharge current, maximum values of time change rate of discharge current, and maximum second order differential values of discharge current; quasi electric field was dominant among components of electric field measured in this experiment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | electrostatic discharge / spark length / discharge current / transient electric field / optical electric-field sensor |
| Paper # | EMCJ2020-19 |
| Date of Issue | 2020-06-26 (EMCJ) |
| Conference Information | |
| Committee | EMCJ / EMD / WPT |
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| Conference Date | 2020/7/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kensei Oh(Nagoya Inst. of Tech.) / Shinichi Wada(TMC System) / Toshio Ishizaki(Ryukoku Univ.) |
| Vice Chair | Atsuhiro Nishikata(Tokyo Inst. of Tech.) / Yoshiki Kayano(Univ. of Electro-Comm.) |
| Secretary | Atsuhiro Nishikata(Denso) / Yoshiki Kayano(NAIST) / (Fuji Electric) |
| Assistant | Nami Sasaki(Seiwa Electric MFG) / Hiroyoshi Shida(Tokin EMC Engineering) / Sho Muroga(Akita Univ.) / Yuichi Hayashi(ＮＡＩＳＴ) / Osamu Kagaya(AGC) / Yoshiaki Narusue(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Compatibility / Technical Committee on Electromechanical Devices / Technical Committee on Wireless Power Transfer |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement of transient electric field at the occurrence of electrostatic discharge when a charged object approaches a grounded object |
| Sub Title (in English) | |
| Keyword(1) | electrostatic discharge |
| Keyword(2) | spark length |
| Keyword(3) | discharge current |
| Keyword(4) | transient electric field |
| Keyword(5) | optical electric-field sensor |
| 1st Author's Name | Hajime Tomita |
| 1st Author's Affiliation | National Institute of Occupational Safety and Health(JNIOSH) |
| Date | 2020-07-03 |
| Paper # | EMCJ2020-19 |
| Volume (vol) | vol.120 |
| Number (no) | EMCJ-84 |
| Page | pp.pp.7-12(EMCJ), |
| #Pages | 6 |
| Date of Issue | 2020-06-26 (EMCJ) |