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Performance of a Micro-Optical Wall Shear Stress Sensor Based on Whispering Gallery Mode Resonators
2009
47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition
unpublished
In this paper, we discuss the dynamic performance of a novel wall shear stress sensor concept based on whispering gallery mode (WGM) shifts of a dielectric microsphere resonator. In the shear stress sensor model, the wall shear stress acting on a sensing element, typically 125 m in diameter, is transmitted mechanically to the microsphere and the transmitted force leads to shifts in the WGMs of the microsphere. By monitoring these WGM shifts, the magnitude as well as the direction of the wall
doi:10.2514/6.2009-314
fatcat:bvcqxakzyve7zdwdzinseim7mi