Abstract
The pressure sensitivity of the induced phase modulation in fiber optic acoustic sensors is studied both analytically and experimentally. The elastic parameters of commonly used coatings (thermoset plastics and acrylate based U. V. curable coatings), which govern the sensitivity, have been studied in bulk samples as a function of frequency (102–104 Hz) and temperature (0°–35 °C). The analysis, which takes into account the exact composition and geometry of multilayer fibers, is utilized to identify coatings which optimize the fiber acoustic sensitivity. The analytically predicted frequency dependence of the acoustic sensitivity is found to be in agreement with that obtained experimentally using fibers with various coatings.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
