文献类型：期刊文献

英文题名：Test verification of an extensometer for deformation measurement of high temperature straight pipes

作者：Jia, J. H.[1];Hu, X. Y.[1];Wang, N.[1];Tu, S. T.[1]

机构：[1]E China Univ Sci & Technol, Sch Mech Engn, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China

年份：2012

卷号：45

期号：7

起止页码：1933

外文期刊名：MEASUREMENT

收录：;EI(收录号：20122315101595);WOS:【SCI-EXPANDED(收录号:WOS:000305714500031)】；

基金：The authors are grateful for the support of China Projects (No. 2009AA044803 and No. 51175178). And Help discussions with Prof. F.Z. Xuan are greatly appreciated. Mr. D. Wang, Mr. S.Z. Zhang and Mr. D.L. Wu joined the on-site test of the monitoring system.

语种：英文

外文关键词：High temperature pipes; Power plants; Deformation; Extensometer

摘要：In order to measure deformations of high temperature pipes, an extensometer is designed and verified by experiments. Firstly, the structure and working principle of the extensometer are described. Then experiments both in the laboratory and on site are carried out to prove stability and accuracy of the extensometer. Results from experiments are compared with the calibrating values, and they are in good agreement. The operating condition of the main steam pipe is evaluated by the on-site test. Conclusions can be drawn that the designed extensometer has reliable stability and high accuracy and can be used for measuring deformations of high temperature pipes in power plants. (C) 2012 Elsevier Ltd. All rights reserved.