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JP2006214941A Instrument and method for measuring component contained in concrete 有权
标题翻译：用于测量混凝土中组分的仪器和方法
公开(公告)号：JP2006214941A
公开(公告)日：2006-08-17
申请号：JP2005029588
申请日：2005-02-04
申请人： Kri Inc , Takenaka Komuten Co Ltd , 株式会社Kri , 株式会社竹中工務店
发明人： UEDA TOMOAKI , TAKENAKA MAKOTO , FUJII HIDEMI , MINEGISHI SHIGEKI , HAGA AKIRA , YAMAZAKI KEITA , MITSUI TATEO , KATO KAZUO
IPC分类号： G01N27/02 , G01N27/22 , G01N33/38
摘要： PROBLEM TO BE SOLVED: To provide an instrument and a method capable of inspecting nondestructively various characteristics such as a chloride concentration, a water content, an iron oxide content and a void ratio contained in concrete, and capable of inspecting a position of a reinforcement or pipe embedded in its inside. SOLUTION: An electric conductivity σ and a relative dielectric constant εr of the concrete are measured by a step 1 for measuring a real part R1 and an imaginary part X1 of an alternating current impedance Z; a step 2 imparting a proper initial value as the electric conductivity σ and a dielectric constant ε; a step 3 for calculating a real part R2 and an imaginary part X2 of an inter-electrode complex voltage by a mathematical model; a step 4 for finding a square error from the real part R1 and the imaginary part X1, and the real part R2 and the imaginary part X2, which are calculated values of the inter-electrode complex voltage, obtained by the step 3; a step 5 for determining whether the square error is smaller than a prescribed value or not; a step 6 for finding the electric conductivity σ and the dielectric constant ε to improve the square error to a smaller value; a step 7 for finding the relative dielectric constant εr by dividing the dielectric constant ε with a vacuum dielectric constant ε0; and a step 8 for determining the electric conductivity σ and the relative dielectric constant εr as measured values in f[Hz]. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够非破坏性地检查混凝土中含有的氯化物浓度，含水量，氧化铁含量和空隙率等各种特性的仪器和方法，并且能够检查在其内部嵌入一根钢筋或钢管。解决方案：通过步骤1测量混凝土的导电率σ和相对介电常数εr，用于测量交流电阻Z的实部R1和虚部X1; 给出适当的初始值作为电导率σ和介电常数ε的步骤2; 用于通过数学模型计算电极间复合电压的实部R2和虚部X2的步骤3; 从步骤3获得的实际部分R1和虚部X1以及作为电极间复合电压的计算值的实部R2和虚部X2找到平方误差的步骤4; 用于确定平方误差是否小于规定值的步骤5; 求出导电率σ和介电常数ε的步骤6，将平方误差提高到较小值; 通过将介电常数ε除以真空介电常数ε0来求出相对介电常数εr的步骤7; 以及用于将电导率σ和相对介电常数εr确定为f [Hz]中的测量值的步骤8。版权所有（C）2006，JPO＆NCIPI

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