کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
746974 | 894489 | 2007 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Performance evaluation of fiber Bragg grating sensors by digital holographic technique, strain gauge measurement Performance evaluation of fiber Bragg grating sensors by digital holographic technique, strain gauge measurement](/preview/png/746974.png)
In view of the growing interest for non-destructive tests of materials, geodynamical monitoring and in general remote sensing, there is a great effort to bring practical optical sensors from research labs to industrial and environmental applications. In this paper, we employ digital holographic technique as an efficient tool for evaluating the strain measurement capability of fiber Bragg gratings (FBG). A cantilever beam has been employed as a test structure under loading test. The strain measurements results obtained by fiber-based sensors have been compared to those obtained by using full-field digital holographic technique and point-wise strain gauge sensors glued on the same cantilever beam. A simple theoretical model is also presented to interpret and compare the experimental results coming from different techniques.
Journal: Optics and Lasers in Engineering - Volume 45, Issue 3, March 2007, Pages 385–389