闡述了光纖監(jiān)測復(fù)合材料成型過程的原理和可行性。研制了依據(jù)強(qiáng)度調(diào)制的光纖傳感器監(jiān)測復(fù)合材料固化成型過程中的內(nèi)部變化歷程, 進(jìn)行了從實(shí)驗(yàn)室到生產(chǎn)現(xiàn)場的監(jiān)測實(shí)驗(yàn)。監(jiān)測結(jié)果比較靈敏、精確, 達(dá)到實(shí)用化,為光纖智能技術(shù)的發(fā)展開辟了新的方向。
關(guān)鍵詞: 　復(fù)合材料; 固化; 光纖傳感器; 強(qiáng)度調(diào)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