Optical measurement of mechanical parameters is gaining significant commercial interest in different industry sectors. Torsion, twist and rotation are among the very frequently measured mechanical parameters. Recently, twist/torsion/rotation sensors have become a topic of intense fiber-optic sensor research. Various sensing concepts have been reported. Many of those have different properties an...

Abstract The safe and stable operation of the transformer is affected by internal temperature. Therefore, it very necessary to accurately effectively detect temperature winding. To realize effective detection transformer, a fiber optic sensor based on structure multimode (MMF)–no core (NCF)–multimode (MMF) (i.e., MMF–NCF–MMF) studied. sensitivity reaches 0.0313 nm/°C. Moreover, enhance accuracy...