闡述了光纖監(jiān)測復合材料成型過程的原理和可行性。研制了依據強度調制的光纖傳感器監(jiān)測復合材料固化成型過程中的內部變化歷程, 進行了從實驗室到生產現場的監(jiān)測實驗。監(jiān)測結果比較靈敏、精確, 達到實用化,為光纖智能技術的發(fā)展開辟了新的方向。
關鍵詞: 　復合材料; 固化; 光纖傳感器; 強度調制
Abstract: 　It is difficult to insure the quality of composites for the reason that there are comp licated p rocesses during curing p rocess of composites. There is a W e need to develop an advanced on2line monitoring system for the curing p rocess of composites. It is feasible to develop fiber op tic sensors to monitor the molding p rocess of composite materials. A s the development of fiber op tic technologies, the physical parameters, chem ical parameters and themechanical parameters of composites during the molding p rocess arem igh tily monitored. In th is paper, the p rincip le of sensing themolding p rocess of composites by fiber op tic is introduced. The feasibility of establish ing the smart fiber op tic2compositessystem is set forth. A sort of fiber op tic sensor based on strength modulation is researched to monitor
the p rocess of composite during the curing p rocess. The experimentsw ere carried out in the laboratory and p roduction field. It can monitor the curing p rocess, including the low est point of the resin matrix, the end point of curing p rocess of composite material sensitively and p recisely. The research results show that the technology can be app lied to intelligentlymonitoring and controlling themolding p rocess of compositematerials. The successful app lication of the op tic fibermonitoring system in the real p ro2 duction field show s that th is technology has reached p racticality ability.
Key words: 　compositematerials; cure; strength modulated fiber op tic sensor