A novel fibre Bragg grating curvature sensor for structure deformation monitoring

• Autorzy: Liu M.-Y. , Zhou S.-G. , Song H. , Zhou W.-J. , Zhang X.

Identyfikatory

DOI

10.24425/123899

• Języki publikacji: EN

Abstrakty

EN

Real-time monitoring of deformation of large structure parts is of great significance and the deformation of such structure parts is often accompanied with the change of curvature. The curvature can be obtained by measuring changes of strain, surface curve and modal displacement of the structure. However, many factors are faced with difficulty in measurement and low sensitivity at a small deformation level. In order to measure curvature in an effective way, a novel fibre Bragg grating (FBG) curvature sensor is proposed, which aims at removing the deficiencies of traditional methods in low precision and narrow adjusting. The sensor combines two FBGs with a specific structure of stainless steel elastomer. The elastomer can transfer the strain of the structure part to the FBG and then the FBG measures the strain to obtain the curvature. The performed simulation and experiment show that the sensor can effectively amplify the strain to the FBG through the unique structure of the elastomer, and the accuracy of the sensor used in the experiment is increased by 14% compared with that of the FBG used for direct measurement.

Słowa kluczowe

EN

fibre Bragg grating; curvature sensor; large structure parts; deformation monitoring

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2018
• Tom: Vol. 25, nr 3
• Strony: 577--587
• Opis fizyczny: Bibliogr. 19 poz., fot., rys., tab., wykr., wzory

Twórcy

autor

Liu M.-Y.

• Wuhan University of Technology, School of Mechanical and Electrical Engineering, Wuhan 430070, Hubei, China

autor

Zhou S.-G.

• Wuhan University of Technology, Hubei Digital Manufacturing Key Laboratory, Wuhan 430070, Hubei, China

autor

Song H.

• Wuhan University of Technology, School of Mechanical and Electrical Engineering, Wuhan 430070, Hubei, China
• Wuhan University of Technology, Hubei Digital Manufacturing Key Laboratory, Wuhan 430070, Hubei, China

autor

Zhou W.-J.

• Wuhan University of Technology, Hubei Digital Manufacturing Key Laboratory, Wuhan 430070, Hubei, China

autor

Zhang X.

• Wuhan University of Technology, Hubei Digital Manufacturing Key Laboratory, Wuhan 430070, Hubei, China

Bibliografia

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Uwagi

EN

1. This research was supported by the National Natural Science Foundation of China (General Program, Grant NO51375359) and the Excellent Dissertation Cultivation Funds of Wuhan University of Technology (Grant NO2016-YS-030). The authors would like to thank Hubei Digital Manufacturing Key Laboratory (Wuhan University of Technology) for providing the experiment equipment to accomplish the project.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).