The Fiber Bragg gating (FBG) can induce the changes of minute stress outside with the movements of Bragg refected
wavelength. In addition, FBG is good at resisting interference, easy to pick off and transport and even liable to produce.
In this paper, we analyzed the response processing of strain waves in different medium such as flexible stuff, agglutinate
layers, sensors and especially Fiber Bragg gating strain sensors, learned the dynamic characteristics of strain sensors in
low frequency, and explored the application of FBG strain sensor in low frequency vibration measurement. By analyzing
the error caused by the amplitude (average value ) of FBG which is about sine wave and which is lower than the true
amplitude, we gained the reference formula for design and application of the FBG strain sensor with error range
1.6%~0.4%. Furthermore, we got the spread time and speed from the strain wave to bare fiber in theory. Because of the
time delay, we used beton materials for example to calculate the measurable frequency of strain sensor for step strain
wave. As a result, we know that the FBG strain sensors have advantages in the structure of stress and strain for high
precision, quasi-distributed digital measure, and the research results also show a guiding meaning in engineering
practice.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.