Fiber optic controls for aircraft engines - Issues and implicationsSome of the issues involved with the application of fiber-optic controls for aircraft engines in the harsh operating environment are addressed, with emphasis on fiber-optic temperature, pressure, position, and speed sensors. Criteria are established to evaluate the optical modulation technique, the sensor/control unit interconnection, and the electrooptic architecture. Single mode and polarization dependent sensor types, sensors which depend on the reflection and/or transmission of light through the engine environment, and intensity-based analog sensors are eliminated as a possible candidate for engine implementation. Fiber-optic harnesses tested for their optical integrity, temperature stability, and mechanical strength, exhibit a capacity to meet mechanical strength requirements and still gain a significant reduction in cable weight.
Document ID
19920063620
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dasgupta, Samhita (NASA Lewis Research Center Cleveland, OH, United States)
Poppel, Gary L. (NASA Lewis Research Center Cleveland, OH, United States)
Anderson, William P. (GE Aircraft Engines Cincinnati, OH, United States)