FRP等聚合物材料已在化工厂酸性或碱性条件下用作防腐材料。这些材料在使用条件下也会降解，然后由于水解或其他反应，它们的化学结构会发生明显变化。有时化学降解会导致化学设备断裂。因此，化工设备状态在线监测系统的开发是有希望的。本研究考察了新型在线监测系统作为智能材料的可能性。为了检测环境的化学变化，研究了两种光纤监测方法。结果表明，通过这些方法可以检测FRP的化学降解。

Polymeric materials such as FRP has been used in chemical plant under acidic or alkaline condition for anti-corrosion materials. These materials also degradate under service condition, then they show obvious change in chemical structures due to hydrolysis or other reactions. Sometimes chemical degradations result in fracture of chemical equipment. Therefore, the development of the on-line monitoring system for the condition of chemical equipment is expected. In this study, possibility of new on-line monitoring system as smart materials was examined. In order to detect the chemical changes of surroundings, two types of monitoring methods with the optical fiber, were investigated. The results showed that it is possible to detect the chemical degradation of FRP by these methods.