“…Therefore, these features make the FBGs suitable sensing elements for doing physical measurements, where a kind of displacement is available. Examples of such applications found in the literature include the measurements of strain (Grattan S. K. T. et al, 2009;Ling H. Y. et al, 2006), pressure (Peng B. J. et al, 2005;Zhang W. et al, 2009), force (Rajan G. et al, 2010;Zhao Y. et al, 2005), tilt rotation by an angle (Peng B. J. et al, 2006;Xie F. et al, 2009), acceleration (Antunes P. et al, 2011;Fender A. et al, 2008), temperature (Bao H. et al, 2010;Gu X. et al, 2006), humidity (Arregui F. J. et al, 2002;Yeo T. L. et al, 2005), magnetic fields (Orr P. et al, 2010), cardiorespiratory function (Silva A. F. et al, 2011a), hand posture analysis (Silva A. F. et al, 2011b), gait function analysis (Rocha R. P. et al, 2011) and integration on wearable garments (Carmo J. P. et al, 2012).…”