A new distributed optical fiber sensing technology to detect pipeline leakage in real time is introduced in this paper, which is based on Mach-Zehnder optical fiber interferometer. The principle of this technology is analyzed, and the phase change of light wave caused by the leakage acoustic wave is discussed as well. The results of the theory analysis and the experiments show that the measuring sensitivity of detecting leakage is greatly improved. Using this technology, the gas leakage of 0.4m3/min can be detected and the measured distance is about 50km under the condition that the pressure of the gas pipe is less than 0.2Mpa.
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.