Fiber vibration sensor multiplexing techniques for quasi-distributed sensing
نویسندگان
چکیده
منابع مشابه
A Fiber Bragg Grating Sensing Based Triaxial Vibration Sensor
A fiber Bragg grating (FBG) sensing based triaxial vibration sensor has been presented in this paper. The optical fiber is directly employed as elastomer, and the triaxial vibration of a measured body can be obtained by two pairs of FBGs. A model of a triaxial vibration sensor as well as decoupling principles of triaxial vibration and experimental analyses are proposed. Experimental results sho...
متن کاملStabilized Interrogation and Multiplexing Techniques for Fiber Bragg Grating Vibration Sensors
We demonstrated a simple interrogation system for multiplexed fiber Bragg grating sensors with high frequency range. A tunable Fabry-Perot filter with narrow free spectral range (FSR) was used to simplify the multiplexing demodulator for FBG vibration sensors. A stabilization controlling unit was also developed for the maintenance of maximum sensitivity of the sensors. In order to verify the pe...
متن کاملDISTRIBUTED ACTIVE VIBRATION CONTROL WITH EMBEDDED SENSOR NETWORK TECHNIQUES By
The early promise of centralized active control technologies to improve the performance of large scale, complex systems has not been realized largely due to the inability of centralized control systems to “scale up”; that is, the inability to continue to perform well when the number of sensors and actuators becomes large. Now, recent advances in Micro-electro-mechanical systems (MEMS), micropro...
متن کاملFiber optic sensor for localized vibration measurement
Structural analysis demands the localized vibration study of metallic, ceramic and composite structures. This paper reports the design and development of a vibration sensor to measure the instantaneous amplitude and frequency of vibrations of structures over very small-localized surface area. Optical fiber based displacement sensor is extended as a vibration sensor, based on the consideration t...
متن کاملDistributed Fiber-Optic Sensors for Vibration Detection
Distributed fiber-optic vibration sensors receive extensive investigation and play a significant role in the sensor panorama. Optical parameters such as light intensity, phase, polarization state, or light frequency will change when external vibration is applied on the sensing fiber. In this paper, various technologies of distributed fiber-optic vibration sensing are reviewed, from interferomet...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics & Laser Technology
سال: 2014
ISSN: 0030-3992
DOI: 10.1016/j.optlastec.2014.05.001