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Volume 23
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10.3390/s23010397
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Article

Micro-Image Strain Sensing Method for Displacement and Strain Measurement in One United Sensor

by
Lixiao Zhang
1,2,
Xixian Chen
1,2,
Weijie Li
1,2,
Botao Xie
3,
Guangyi Zhou
4 and
Xuefeng Zhao
1,2,*
1
School of Civil Engineering, Dalian University of Technology, Dalian 116024, China
2
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
3
College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 325035, China
4
Northeast Branch of China Construction Eighth Engineering Bureau Division Corp, LTD., Dalian 116021, China
*
Author to whom correspondence should be addressed.
Sensors 2023, 23(1), 397; https://doi.org/10.3390/s23010397
Submission received: 13 December 2022 / Revised: 26 December 2022 / Accepted: 28 December 2022 / Published: 30 December 2022
(This article belongs to the Section Physical Sensors)
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Abstract

Micro-image strain sensing (MISS) is an innovative technology to measure strain within a measurement range of ±8300 microstrains. It has been proved to be effective and satisfy all requirements in the field of structural health monitoring. However, there is still room for improvement and extend the range of measurement. In this paper, an improved method is proposed to increase the measurement range of strain and displacement. Moreover, various tests were conducted to verify the efficiency of the improved method. The results showed that the modified method is efficient and accurate and can be readily used to extend the measurement range of both strain and displacement. This research will likely help stimulate the development of multifunctional sensors to obtain abundant useful information about structures in the field of structural health monitoring. It will allow measuring strain and displacement, which require different levels of accuracy, using one unified sensor.
Keywords: one united sensor; improved MISS method; strain and displacement; structural health monitoring; image processing one united sensor; improved MISS method; strain and displacement; structural health monitoring; image processing

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MDPI and ACS Style

Zhang, L.; Chen, X.; Li, W.; Xie, B.; Zhou, G.; Zhao, X. Micro-Image Strain Sensing Method for Displacement and Strain Measurement in One United Sensor. Sensors 2023, 23, 397. https://doi.org/10.3390/s23010397

AMA Style

Zhang L, Chen X, Li W, Xie B, Zhou G, Zhao X. Micro-Image Strain Sensing Method for Displacement and Strain Measurement in One United Sensor. Sensors. 2023; 23(1):397. https://doi.org/10.3390/s23010397

Chicago/Turabian Style

Zhang, Lixiao, Xixian Chen, Weijie Li, Botao Xie, Guangyi Zhou, and Xuefeng Zhao. 2023. "Micro-Image Strain Sensing Method for Displacement and Strain Measurement in One United Sensor" Sensors 23, no. 1: 397. https://doi.org/10.3390/s23010397

APA Style

Zhang, L., Chen, X., Li, W., Xie, B., Zhou, G., & Zhao, X. (2023). Micro-Image Strain Sensing Method for Displacement and Strain Measurement in One United Sensor. Sensors, 23(1), 397. https://doi.org/10.3390/s23010397

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