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Analysis of the performance of strain magnification using uniform rectangular cantilever beam with fiber Bragg gratings
Yang, Shuang1,2; Li, Jun1; Tang, Yuquan1; Sung, Miao3; Gao, Gang1,2; Liu, Xu'an1,2; Shi, Bo1,2; Dong, Fengzhong1,2
2018-04-15
Source PublicationSENSORS AND ACTUATORS A-PHYSICAL
ISSN0924-4247
Volume273Issue:Pages:266-275
Abstract

A thorough analysis of the performance of different strain magnification structures with fiber Bragg gratings (FBG) is demonstrated in this paper. Four kinds of cantilever beams with different shapes have been designed by using a laser cutting technique. Simulation results show that the strain magnification structures of the different cantilever beams are different. There is a positive and linear correlation between the displacement of the free end of the cantilever beam and the average strain at the pasting position of the FBG. The correlation is used to calculate the displacement sensitivity and analyze the efficacy of the different strain magnification structures. Sensitivity enhancement factors (compared to a reference beam) of 2.67, 2.14 and 2.57 were measured experimentally for the different beam shapes studied, while the theoretical prediction factors were 2.67, 2.24 and 2.55, respectively. There is a reasonable agreement between simulation and experiment, which shows that the efficacy is related to the increasing rate of the average strain over the FBG length. The proposed method can be used to enhance the sensitivity of the FBG sensor and further improve the sensor structure design. (C) 2018 Elsevier B.V. All rights reserved.

KeywordFiber optic sensor Fiber Bragg grating Displacement measurement Sensitivity enhancement
DOI10.1016/j.sna.2018.01.017
WOS KeywordTEMPERATURE COMPENSATION ; SENSOR ; DISPLACEMENT ; ACCELEROMETER ; SENSITIVITY
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41405034] ; National Natural Science Foundation of China[41775128] ; External Cooperation Program of Chinese Academy of Sciences[GJHZ1726] ; Science and Technology Program of Anhui Province[1604a0802108]
WOS Research AreaEngineering ; Instruments & Instrumentation
WOS SubjectEngineering, Electrical & Electronic ; Instruments & Instrumentation
WOS IDWOS:000430769500029
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/35375
Collection中科院安徽光学精密机械研究所
Corresponding AuthorDong, Fengzhong
Affiliation1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Anhui Prov Key Lab Photon Devices & Mat, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.Hefei Normal Univ, Sch Elect & Informat Engn, Hefei 230601, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Yang, Shuang,Li, Jun,Tang, Yuquan,et al. Analysis of the performance of strain magnification using uniform rectangular cantilever beam with fiber Bragg gratings[J]. SENSORS AND ACTUATORS A-PHYSICAL,2018,273(无):266-275.
APA Yang, Shuang.,Li, Jun.,Tang, Yuquan.,Sung, Miao.,Gao, Gang.,...&Dong, Fengzhong.(2018).Analysis of the performance of strain magnification using uniform rectangular cantilever beam with fiber Bragg gratings.SENSORS AND ACTUATORS A-PHYSICAL,273(无),266-275.
MLA Yang, Shuang,et al."Analysis of the performance of strain magnification using uniform rectangular cantilever beam with fiber Bragg gratings".SENSORS AND ACTUATORS A-PHYSICAL 273.无(2018):266-275.
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