Academic Commons

Articles

Novel Fiber Optic Accelerometer System Using Geometric Moiré Fringe

Feng, Maria Q.; Kim, Dae-Hyun

This paper presents an innovative fiber optic accelerometer system for monitoring vibration of large-size structures. The system is composed of one (or multiple) sensor head and a control unit for driving the sensor and processing sensor data. The sensing mechanism is based on a novel integration of the moiré fringe phenomenon with fiber optics, resulting in accurate and reliable measurement. A prototype fiber optic accelerometer system has been successfully developed, including a sensor head, a low-cost control unit and a software package with a unique algorithm for processing the moiré fringe signals into accelerations with a high resolution. Finally, free vibration and shaking table tests were performed to identify the dynamic characteristics and demonstrate the high performance of the sensor system developed in this study.

Files

  • thumnail for a48-1-s2.0-S0924424706000094.pdf a48-1-s2.0-S0924424706000094.pdf application/pdf 496 KB Download File

Also Published In

Title
Sensors and Actuators A: Physical
DOI
https://doi.org/10.1016/j.sna.2005.12.050

More About This Work

Academic Units
Civil Engineering and Engineering Mechanics
Published Here
March 27, 2013
Academic Commons provides global access to research and scholarship produced at Columbia University, Barnard College, Teachers College, Union Theological Seminary and Jewish Theological Seminary. Academic Commons is managed by the Columbia University Libraries.