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STRUCTURE EVALUATION SYSTEM AND STRUCTURE EVALUATION METHOD

外国特許コード F200010083
整理番号 5817
掲載日 2020年5月15日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP022856
国際公開番号 WO 2018235195
国際出願日 平成29年6月21日(2017.6.21)
国際公開日 平成30年12月27日(2018.12.27)
発明の名称 (英語) STRUCTURE EVALUATION SYSTEM AND STRUCTURE EVALUATION METHOD
発明の概要(英語) The structure evaluation system according to an embodiment of the present invention comprises an impact applying unit, sensors, and a structure evaluation device. The impact applying unit applies an impact to a structure. The impact applying unit applies the impact at a frequency equal to or lower than a frequency determined according to a strength on the basis of which the impact is applied. The sensors each detect an elastic wave. The structure evaluation device evaluates the deterioration state of the structure on the basis of the detected elastic wave.
従来技術、競合技術の概要(英語) BACKGROUND ART
The surface of the structure of the AE sensor such as a bridge such as in sensors may be installed, within the structure generated from the damaged part of the elastic wave can be detected. And moreover a plurality of sensors may be installed in, from the difference between the arrival time of the acoustic wave between the sensors, acoustic wave generation source (hereinafter referred to as' elastic wave generation source ' is called.) Can be the position of the location. Sensing rain or the like of the collision to the road surface, and the same acoustic wave is generated, the occurrence position can be orientation. However, in the elastic wave propagation path when the damage, in order to prevent the propagation of the elastic wave, an occurrence position of the location cannot be correctly made. By using this, the position location of the disturbance in the distribution of the elastic wave from the source, damage to the internal structure can be detected. However, the method using only the rainfall, the measurement is intended to efficiently is difficult.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • TOSHIBA CORPORATION
  • KYOTO UNIVERSITY
  • 発明者(英語)
  • TAKAMINE, Hidefumi
  • WATABE, Kazuo
  • SHIOTANI Tomoki
  • NISHIDA Takahiro
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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