Simple, rugged, lightweight transducers detect periodic vortices. Fiber-optic-coupled transducers developed to measure flows over wide dynamic ranges and over wide temperature ranges in severe environments. Used to measure flows of fuel in advanced aircraft engines. Feasibility of sensors demonstrated in tests of prototype sensor in water flowing at various temperatures and speeds. Particularly attractive for aircraft applications because optical fibers compact and make possible transmission of sensor signals at high rates with immunity from electromagnetic interference at suboptical frequencies. Sensors utilize optical-to-optical conversion via photoelastic effect.
Fiber-Optic/Photoelastic Flow Sensors
NASA Tech Briefs ; 19 , 9
1995-09-01
Miscellaneous
No indication
English
Fiber-Optic-Photoelastic Flow Sensors
Online Contents | 1995
Error Analyses for Photoelastic Multimode Optical Fiber Sensors
British Library Online Contents | 1993
|Two-wavelength loss-compensated fiber optic photoelastic pressure sensor [2594-24]
British Library Conference Proceedings | 1996
|British Library Conference Proceedings | 1994
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