Four‐channel fiber loop ring‐down pressure sensor with temperature compensation based on neural networks

• DOI: 10.1002/mop.25326
• Publication Date: 2010-05-19T01:51:55Z
• Authors: Yang Gao; Yishen Qiu; Huaixi Chen; Yan Huang; Gaoming Li
• Keywords: 0103 physical sciences; 01 natural sciences

AbstractA four‐channel fiber loop ring‐down pressure sensor with temperature compensation based on neural networks is described.This fiber ring‐down pressure sensor makes use of the principle of time division multiplexing, which consists of series and parallel fiber loops. The laser pulses from four‐channels can be acquired by only one detector and the four pressure values are measured synchronously in our experiment. Taking mode dispersion in multimode fiber into consideration, the maximum multiplexing number is discussed. In addition, temperature compensation based on neural networks has been successfully used in our experiment, to eliminate the disturbance of environmental temperature. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1796–1799, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25326