论文信息 - Embedding and testing of ultrahigh-sensitivity optical fiber sensors in prototype graphite composite spacecraft strut tubes

Embedding and testing of ultrahigh-sensitivity optical fiber sensors in prototype graphite composite spacecraft strut tubes

Ultrahigh sensitivity fiber cavity etalon (FCE) sensors have been embedded in graphite-reinforced polymer tubes fabricated by two different methods: resin transfer molding (RTM) and standard autoclave curing, and FCEs have been embedded in autoclave-cured unidirectional flat laminates. Significant issues encountered in embedding the sensors include protecting the fiber egress during layup, curing, and breakout, survival of the butt-coupled splice between the cavity and lead fiber during composite cure, maintaining sensor location, and sensor reliability and response. Methods were successfully devised to overcome these obstacles.

[1] Heather Patrick,et al. Athermal fibre cavity etalon for ultra-high-sensitivity strain sensing , 1999 .

[2] A. Dasgupta,et al. Importance of coatings to optical fiber sensors embedded in smart structures , 1992 .

[3] Richard O. Claus,et al. Role of adhesion in optical-fiber-based smart composite structures and its implementation in strain analysis for the modeling of an embedded optical fiber , 1991, Other Conferences.

[4] K. S. Gottschalck,et al. Ultrahigh-sensitivity fiber-optic strain and temperature sensor. , 1998, Optics letters.

[5] Richard O. Claus,et al. Structure/Property Correlations Of Several Polyimide Optical Fiber Coatings For Embedding In An Epdxy Matrix , 1990, Other Conferences.

[6] E. J. Friebele,et al. Ultrahigh-sensitivity strain sensing using fiber cavity etalons , 1997, Smart Structures.

[7] E. Joseph Friebele,et al. Optical fiber sensors for spacecraft applications , 1999, International Conference on Optical Fibre Sensors.

[8] G. Sendeckyj,et al. Review of the mechanics of embedded optical sensors , 1995 .