Development and Property Investigation of a Large-Scale Strain Sensor by Grating Moiré Fringe Method

Cheng Li Duan; Ya Dong Jiang; Li Jie Chen; Hui Ling Tai

doi:10.4028/www.scientific.net/AMR.718-720.1383

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 718-720Development and Property Investigation of a...

Development and Property Investigation of a Large-Scale Strain Sensor by Grating Moiré Fringe Method

Abstract:

A large-scale strain sensor for measuring the strain between 0~0.2ε has been developed using grating moiré fringe in this work. The gallium arsenide near-infrared solid-state light-emitting diode was used for light source of the sensor, and photodiode array sensor was chosen for the photodetector. The signal received was converted into digital pulses for the output by the signal processing system and displayed. The results indicated that the fabricated large-scale strain sensor showed the good linearity and repeatability, and low hysteresis. Strain sensitivity of 620ε^-1and a minimum strain of 0.004 ε can be achieved.

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Periodical:

Advanced Materials Research (Volumes 718-720)

Pages:

1383-1387

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.718-720.1383

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Online since:

July 2013

Authors:

Cheng Li Duan, Ya Dong Jiang, Li Jie Chen, Hui Ling Tai

Keywords:

Grating, Large-Scale Strain, Moiré Fringe, Sensor

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