S. Zhao, Dongming Liu, J. Zhang, Zhongyun Liu, Licheng Qiao
{"title":"基于组合式光纤光栅的快速双参数测试系统","authors":"S. Zhao, Dongming Liu, J. Zhang, Zhongyun Liu, Licheng Qiao","doi":"10.1117/12.2653899","DOIUrl":null,"url":null,"abstract":"Strain and temperature are two main parameters in fiber grating system, while there are cross-sensitive problems. In order to obtain this two-parameter at the same time, and to reduce its influence, a test system based on combined FBG is designed. Based on different effect of different core diameter strain, a kind of FBG probe is studied. On the basis of calculating the relationship between wavelength offset and the strain and temperature, the correlation function is deduced, and the coupling mode of the probe and the coupling efficiency are analyzed. In the experiment, strain and temperature test were completed by using light source, transmission fiber, combined FBG and so on. The results show that the wavelength offset is basically the same when the FBG changes with temperature. However, the slope change is quite different when stress changes. Finally, the strain and temperature were tested under different conditions, and the response coefficients of FBG temperature and strain were calibrated. It can be seen that the simultaneous analysis of temperature and strain can be achieved by detecting wavelength offset of combined FBG. The design is no need to weld, taper and other complex technologies. It has simple structure, strong capacity expansion capability and has high application value.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A fast two-parameter test system based on combined FBG\",\"authors\":\"S. Zhao, Dongming Liu, J. Zhang, Zhongyun Liu, Licheng Qiao\",\"doi\":\"10.1117/12.2653899\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Strain and temperature are two main parameters in fiber grating system, while there are cross-sensitive problems. In order to obtain this two-parameter at the same time, and to reduce its influence, a test system based on combined FBG is designed. Based on different effect of different core diameter strain, a kind of FBG probe is studied. On the basis of calculating the relationship between wavelength offset and the strain and temperature, the correlation function is deduced, and the coupling mode of the probe and the coupling efficiency are analyzed. In the experiment, strain and temperature test were completed by using light source, transmission fiber, combined FBG and so on. The results show that the wavelength offset is basically the same when the FBG changes with temperature. However, the slope change is quite different when stress changes. Finally, the strain and temperature were tested under different conditions, and the response coefficients of FBG temperature and strain were calibrated. It can be seen that the simultaneous analysis of temperature and strain can be achieved by detecting wavelength offset of combined FBG. The design is no need to weld, taper and other complex technologies. It has simple structure, strong capacity expansion capability and has high application value.\",\"PeriodicalId\":32903,\"journal\":{\"name\":\"JITeCS Journal of Information Technology and Computer Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-12-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JITeCS Journal of Information Technology and Computer Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1117/12.2653899\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JITeCS Journal of Information Technology and Computer Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.2653899","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A fast two-parameter test system based on combined FBG
Strain and temperature are two main parameters in fiber grating system, while there are cross-sensitive problems. In order to obtain this two-parameter at the same time, and to reduce its influence, a test system based on combined FBG is designed. Based on different effect of different core diameter strain, a kind of FBG probe is studied. On the basis of calculating the relationship between wavelength offset and the strain and temperature, the correlation function is deduced, and the coupling mode of the probe and the coupling efficiency are analyzed. In the experiment, strain and temperature test were completed by using light source, transmission fiber, combined FBG and so on. The results show that the wavelength offset is basically the same when the FBG changes with temperature. However, the slope change is quite different when stress changes. Finally, the strain and temperature were tested under different conditions, and the response coefficients of FBG temperature and strain were calibrated. It can be seen that the simultaneous analysis of temperature and strain can be achieved by detecting wavelength offset of combined FBG. The design is no need to weld, taper and other complex technologies. It has simple structure, strong capacity expansion capability and has high application value.