| Presentation | 2018-11-16 Loss affect to the Estimation of a Rebar Ryo Sakamoto, Toshiyuki Tanaka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Rebar can be easily detected by using concrete radar. However, the covering depth and rebar diameter required for safety inspection is not accurately estimated. We have proposed a method to simultaneously estimate the relative permittivity of concrete, the position of rebar and the diameter of rebar using electromagnetic wave pulse. Using the proposed method, it was not possible to estimate the diameter of the rebar with sufficient accuracy for the measured data.In this paper, when the conductivity exists, the pulse width widens according to the propagation distance, so it is clarified that the arrival time changes. We discuss the method of correcting the arrival time and estimating the diameter of the rebar. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Detection a rebar / Nondestructive test / Pulse width / Conductivity |
| Paper # | MW2018-106 |
| Date of Issue | 2018-11-08 (MW) |
| Conference Information | |
| Committee | MW |
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| Conference Date | 2018/11/15(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukue Cultural Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Chair | Masahiro Muraguchi(TUS) |
| Vice Chair | Yoshinori Kogami(Utsunomiya Univ.) / Hiroshi Okazaki(NTT DOCOMO) / Kenichi Tajima(Mitsubishi Electric) |
| Secretary | Yoshinori Kogami(HITACHI) / Hiroshi Okazaki(Utsunomiya Univ.) / Kenichi Tajima |
| Assistant | Mizuki Motoyoshi(Tohoku Univ.) / Satoshi Yoshida(Kagoshima Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Microwaves |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Loss affect to the Estimation of a Rebar |
| Sub Title (in English) | |
| Keyword(1) | Detection a rebar |
| Keyword(2) | Nondestructive test |
| Keyword(3) | Pulse width |
| Keyword(4) | Conductivity |
| Keyword(5) | |
| 1st Author's Name | Ryo Sakamoto |
| 1st Author's Affiliation | Nagasaki University(Nagasaki Univ.) |
| 2nd Author's Name | Toshiyuki Tanaka |
| 2nd Author's Affiliation | Nagasaki University(Nagasaki Univ.) |
| Date | 2018-11-16 |
| Paper # | MW2018-106 |
| Volume (vol) | vol.118 |
| Number (no) | MW-308 |
| Page | pp.pp.71-76(MW), |
| #Pages | 6 |
| Date of Issue | 2018-11-08 (MW) |