Sensing technology for pressure, flow, viscosity and moisture content monitoring in autoclave environments.

摘要

This report is an evaluation of sensor technology for continuously determining pressure, flow, viscosity, and moisture content of the resin in fiber composite laminates that are being cured in an autoclave. An effort has been made to identify the individuals and firms active in research and manufacture of such sensors. Monitoring technologies of interest include dielectric, fiber optic, strain gage, capacitive, ultrasonic, piezoelectric, nuclear magnetic resonance, resistance change, vibration, tracer/fluorescent particle analysis, and anemometer. The focus is on sensors that produce real-time data; techniques that rely on indirect correlations and modeling for estimates of effects are discussed only briefly.