کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10412363 | 894894 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection of acoustic emission in structure using Sagnac-like fiber-loop interferometer
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A Sagnac-like fiber-loop interferometer sensor has been proposed for the detection of micro crack induced acoustic emission in concrete structures. The use of a Sagnac-like configuration eliminates much of the undesirable noise by combining the reference and the sensing arms within the same optical fiber. The photo-elastic response of optical fiber to ultrasonic stress wave in elastic structural material and the effect of the soft fiber coating are analyzed. The sensor can be configured as a long gauge length sensor to detect the existence of acoustic emission in a large structural area, or as a point sensor with a short gauge length or a coiled long fiber length to detect acoustic wave at a particular location in a structure. Experiments were conducted and compared with the results from traditional piezoelectric transducers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 118, Issue 1, 31 January 2005, Pages 6-13
Journal: Sensors and Actuators A: Physical - Volume 118, Issue 1, 31 January 2005, Pages 6-13
نویسندگان
Libo Yuan, Li-min Zhou, Wei Jin,