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Title: Method of measuring length and mass of brad and pile
Other Titles: 测量土钉与桩的长度与质量的方法
Authors: Yin, JH 
Jin, W 
Issue Date: 5-Dec-2007
Publisher: 中华人民共和国国家知识产权局
Source: 中国专利 ZL 200510006316.2 How to cite?
Abstract: The method of measuring length and mass of brad and pile includes the following steps: setting sensors on the sensing optical fiber; embedding the fiber axially inside the pile or brad, with the fiber being in the same arranged length as the pile or brad; connecting the fiber with to the light source and the reflected wave receiver; connecting the reflected wave receiver connected successively to the data collecting recorder and the data treating circuit; applying axial load to the exposed head of the pile or brad with some loading unit; obtaining the physical quantity for calculating the strain of the sensor under the action of the axial load with the reflected wave receiver; and calculating the strain distribution, length and mass of the pile or brad with the physical quantity in the data treating circuit. The present invention has wide measurement application, high reliability, low cost, high electromagnetic interference resistance and other advantages.
Rights: 专利权人: The Hong Kong Polytechnic University.
Appears in Collections:Patent

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