Design and development of a new strain measuring method based on smartphone and machine vision

Botao Xie,Xixian Chen,Mingwei Ding,Guangyi Zhou,Xuefeng Zhao

Measurement（2021）

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摘要

•This paper presents a new strain measuring method based on smartphones.•A piston-type sensor to complement this method was designed and manufactured.•The automatic calibration of the pixel size of images was achieved.•The experimental results of the sensor matched well with those from FBG.

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关键词

Strain measuring method,Smartphone,Circle detection,Machine vision,Temperature compensation

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