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鉄筋およびコンクリートがワイヤレスコンクリートセンサの通信性に与える影響
https://doi.org/10.24514/0002001422
https://doi.org/10.24514/0002001422a239c9a5-1fbd-4099-97ee-2ef5afe9148c
| 名前 / ファイル | ライセンス | アクション |
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TRNIRE211_187-203.pdf (1.2 MB)
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(c) 国立研究開発法人 農業・食品産業技術総合研究機構
National Agriculture and Food Research Organization, Japan |
| Item type | 紀要論文 / Departmental Bulletin Paper_03(1) | |||||||||||||||||||||||||||||||||||||
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| 公開日 | 2025-10-31 | |||||||||||||||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||||||||||||||
| タイトル | 鉄筋およびコンクリートがワイヤレスコンクリートセンサの通信性に与える影響 | |||||||||||||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||||||||||||||
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| タイトル | Effects of Concrete and Reinforcing Bar on The Wireless Transmission With Low Frequency Electromagnetic Wave | |||||||||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||||||||||
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| 言語 | jpn | |||||||||||||||||||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||||||||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||||||||||||||||||||||||||||
| ID登録 | ||||||||||||||||||||||||||||||||||||||
| ID登録 | 10.24514/0002001422 | |||||||||||||||||||||||||||||||||||||
| ID登録タイプ | JaLC | |||||||||||||||||||||||||||||||||||||
| 著者 |
中嶋, 勇
× 中嶋, 勇
× 増川, 晋
× 田頭, 秀和
× 林田, 洋一
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| 抄録 | ||||||||||||||||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||||||||||||
| 内容記述 | We have developed wireless transducers using a low frequency electromagnetic wave to measure pore water pressure in fill dams. We call them“Wireless Pore Water Pressure Transducers”. This transducer is available to use Structural Health Monitoring (SHM) in reinforced concrete structures because it has no wire cables and it is easy to make the size smaller. However, few studies have been carried out on the communication characteristic of a low frequency electromagnetic wave through reinforced concrete. The aim of this paper is to investigate the communication characteristic of a low frequency electromagnetic wave through reinforced concrete. Some experimental tests were conducted to investigate the effects of concrete and reinforcing bar on the wireless transmission. (1) The attenuation characteristics of a low frequency electromagnetic wave in air. (2) The attenuation effects of electromagnetic waves by reinforcing bar. (3) The attenuation characteristics of a low frequency electromagnetic wave in reinforced concrete specimens. The results are as follows: (1) The received voltage changes by arranging the transmission coil. When the both axes of the transmission and receiving coil are corresponding, the received voltage becomes maximum. When two axes are orthogonal, the received voltage becomes minimum. (2) The effect of main reinforcing bar on the attenuation of the low frequency electromagnetic wave is small. (3) The hoop attenuates the low-frequency electromagnetic wave when the axis of the transmission coil is corresponding to the axis of hoop axis. (4) The low frequency electromagnetic wave attenuates when the reinforcing bar exists within about 3cm by the transmission coil. (5) The communication examination was done by setting up the transmission coil in a cylindrical test piece of 60cm in the diameter, steel ratio 1.5％. As a result, it was confirmed a wireless transducer using a low frequency electromagnetic wave was capable of communicating in reinforced concrete structure by the distance of 30-40m. In conclusion, it was confirmed a wireless communication using a low frequency electromagnetic wave was to communicate in reinforced concrete structure. |
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| 言語 | en | |||||||||||||||||||||||||||||||||||||
| 書誌情報 |
ja : 農村工学研究所技報 en : Technical report of the National Institute for Rural Engineering 巻 211, p. 187-203, 発行日 2011-03-31 |
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| 出版者 | ||||||||||||||||||||||||||||||||||||||
| 出版者 | 独立行政法人 農業・食品産業技術総合研究機構 農村工学研究所 | |||||||||||||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||||||||||||||||
| 出版者 | National Agriculture and Food Research Organization, National Institute for Rural Engineering | |||||||||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||||||||||
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| 収録物識別子タイプ | PISSN | |||||||||||||||||||||||||||||||||||||
| 収録物識別子 | 1882-3289 | |||||||||||||||||||||||||||||||||||||
