A low-cost, accurate strain measurement using multi-view amplification mechanism and visual polydimethylsiloxane lens

被引：0

作者：

Du, Qiu-Yue ^{[1
]}

Tian, Bin ^{[1
]}

机构：

[1] Beijing Technol & Business Univ, Sch Mat Sci & Mech Engn, Beijing 100048, Peoples R China

来源：

JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION | 2019年 / 59卷

基金：

中国国家自然科学基金;

关键词：

Strain measurement; Amplification mechanism; Visual PDMS lens; Smart-phone microscope; DIGITAL IMAGE CORRELATION; FIBER; SENSORS;

D O I：

10.1016/j.jvcir.2019.01.036

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Strain sensors are widely applied in the industry requiring specific signal amplifiers and signal readers. However, the devices are unable to read data quickly and intuitively. The present study introduces a highly accurate, repeatable, mold-free strain sensor comprising of an amplification mechanism and a smart-phone microscope. Generation of the amplification mechanism using rapid prototyping especially 3D printing is summarized and evaluated. The sensitivity of the proposed amplifier is (39.47 +/- 1.34) for nylon and (37.74 +/- 2.41) for ABS. A visual polydimethylsiloxane (PDMS) lens with a focal length of 7.23 mm is attached to the iphone6 camera, performing as a microscope for image acquisition, which provides an equivalent focal length of 6.7 mm and a resolution of 0.691 mu m. (C) 2019 Elsevier Inc. All rights reserved.

引用

页码：380 / 386

页数：7