An experimental study is performed on the measuring characteristics of BOTDR for structural health monitoring, including dead weight tension test and optical fiber compression-tension test.
应用BOTDR检测技术对用于结构物健康监测的光纤变形检出特性进行了试验研究，包括光纤锥重拉伸试验和光纤压缩与拉张试验。
Due to the Fresnel reflection in optical fiber links there will be dead zone existing in the measurement using OTDR. This paper gives a quantitative analysis of this so called dead zone.
光纤线路中的菲涅尔反射使OTDR测试有盲区，文章对该盲区进行了定量分析。
First, the steel fiber reinforced concrete and the lightweight aggregate concrete can make up the deficiencies of common concrete such as low tensile strength and large dead weight.
首先，钢纤维和轻骨料能弥补普通混凝土存在的抗拉强度低和自重大等方面的不足。
First, the steel fiber reinforced concrete and the lightweight aggregate concrete can make up the deficiencies of common concrete such as low tensile strength and large dead weight.
首先，钢纤维和轻骨料能弥补普通混凝土存在的抗拉强度低和自重大等方面的不足。
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