文献类型：期刊文献

中文题名：Magnification Ratio of Mechanical Displacement Amplifier in Sensing Device

英文题名：Magnification Ratio of Mechanical Displacement Amplifier in Sensing Device

作者：Jia, Jiuhong[1]; Liao, Zuoyu[1]; Hu, Xiaoyin[1]; Tu, Shandong[1]

机构：[1] Key Laboratory of Pressure Systems and Safety of Ministry of Education, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2017

卷号：34

期号：3

起止页码：302

中文期刊名：Transactions of Nanjing University of Aeronautics and Astronautics

外文期刊名：Transactions of Nanjing University of Aeronautics and Astronautics

收录：CSTPCD;;EI(收录号：20173304049040);Scopus;CSCD:【CSCD2017_2018】；

基金：supported by the 111 Project of China(No.B13020);the Shanghai Pujiang Program(No.15PJD010)

语种：英文

中文关键词：amplifier shaped bottleneck monitor agree validate manufactured correction corner integrating

外文关键词：Light amplifiers - Structural design - Amplifiers (electronic)

摘要：In order to monitor deformation of high temperature components for a long time,a sensing device integrating a bridge-shaped mechanical displacement amplifier has been designed.This sensing device has higher resolution and accuracy than conventional extensometers.However,the relation between the magnification ratio and the structure size of the displacement amplifier is a bottleneck of sensing device design.Addressing this,the magnification ratio of a mechanical displacement amplifier is analytically derived based on its geometry structure.Six prototypes of the displacement amplifier made in propathene are manufactured,and an experimental system is set up to validate the accuracy of the established magnification ratio equation.Theoretical magnification ratios and experimental magnification ratios are compared and agree well,which verifies that the proposed equation is reliable.This analytical equation provides an effective design method for bridge-shaped mechanical displacement amplifiers with an expected magnification ratio.
In order to monitor deformation of high temperature components for a long time, a sensing device integrating a bridge-shaped mechanical displacement amplifier has been designed. This sensing device has higher resolution and accuracy than conventional extensometers. However, the relation between the magnification ratio and the structure size of the displacement amplifier is a bottleneck of sensing device design. Addressing this, the magnification ratio of a mechanical displacement amplifier is analytically derived based on its geometry structure. Six prototypes of the displacement amplifier made in propathene are manufactured, and an experimental system is set up to validate the accuracy of the established magnification ratio equation. Theoretical magnification ratios and experimental magnification ratios are compared and agree well, which verifies that the proposed equation is reliable. This analytical equation provides an effective design method for bridge-shaped mechanical displacement amplifiers with an expected magnification ratio. ? 2017, Editorial Department of Transactions of NUAA. All right reserved.