High‐sensitivity pressure sensor using a polymer‐embedded FBG

• DOI: 10.1002/mop.23021
• Publication Date: 2007-11-19T16:19:54Z
• Authors: H. Ahmad; S. W. Harun; W. Y. Chong; M. Z. Zulkifli; M. M. M. Thant; Z. Yusof; P. Poopalan
• Keywords: QC Physics; 0202 electrical engineering, electronic engineering, information engineering; Q Science (General); 02 engineering and technology; TK Electrical engineering. Electronics Nuclear engineering

AbstractA new pressure sensor based on fiber Bragg gratings (FBG), is described with high‐pressure sensitivity. The sensor is configured by embedding the FBG in a polymer‐field aluminum casing with an opening on one side, which is exposed to pressure measurand. The measured pressure response is 0.06 nm/psi that is ∼2700 times higher than the pressure response measured with a bare FBG. The linearity of the designed sensor is also shown to be good at pressures below 50 psi. This sensor has numerous potential applications in the area of low‐pressure measurements. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 60–61, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23021