Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1252941 | Chemical Research in Chinese Universities | 2008 | 5 Pages |
Abstract
Metal-coated fiber Bragg grating(FBG) temperature sensors were prepared via electroless nickel(EN) plating and tin electroplating methods on the surface of normal bare FBG. The surface morphologies of the metal-coated layers were observed under a metallographic microscope. The effects of pretreatment sequence, pH value of EN plating solution and current density of electroplating on the performance of the metal-coated layers were analyzed. Meanwhile, the Bragg wavelength shift induced by temperature was monitored by an optical spectrum analyzer. Sensitivity of the metal-coated FBG(MFBG) sensor was almost two times that of normal bare FBG sensor. The measuring temperature of the MFBG sensor could be up to 280 °C, which was much better than that of conventional FBG sensor.
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Authors
Ren-sheng SHEN, Rui TENG, Xiang-ping LI, Jin ZHANG, Dao-cheng XIA, Zhao-qi FAN, Yong-sen YU, Yu-shu ZHANG, Guo-tong DU,