眼下对发展先进传感材料有很大兴趣,这种兴趣受工业界对局部环境进行廉价、可靠和无损探测需求的推动。以光纤涂复多孔玻璃为基础的一类新型传感器正在出现。玻璃用溶胶-凝胶技术合成,纳米尺寸玻璃栅格内含染料分子。美国拉特格斯大学和爱尔兰三位一体学院都柏林城市大学的研究组已发展以这种先进材料为基础的光纤pH传感器。这种新材料的优点包括机械强度、耐化学腐蚀和高温稳定性,其性质与选用的染料分子有关。溶胶-凝胶技术通过有机金属的室温反应而产生多孔玻璃。为用这种方法制取石英玻璃,将溶液(溶胶)中的环氧基硅在室温下进行水解和浓缩反应,由此产生疏松无机网状物(凝 There is great interest in developing advanced sensing materials for the moment, driven by the industry’s need for cheap, reliable and nondestructive detection of the local environment. A new class of sensors based on fiberglass-coated Porous Glass is emerging. Glass is synthesized by a sol-gel technique, and the nanoscale glass grid contains dye molecules. The Rutgers University and the Irish Trinity Institute Dublin City University’s research group has developed fiber-optic pH sensors based on this advanced material. Advantages of this new material include mechanical strength, chemical resistance and high temperature stability, the nature of which depends on the choice of dye molecules. Sol-gel technology produces porous glass by room-temperature reaction of organometallics. In order to prepare quartz glass by this method, epoxy silicon in the solution (sol) is hydrolyzed and concentrated at room temperature to produce a loose inorganic network