Orthogonal Shear Stress Measurement Probe Assembly for Boundary Layer Flow.
Patent, Filed 19 June 95, patented 22 Apr 97,
DEPARTMENT OF THE NAVY WASHINGTON DC
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An orthogonal shear stress measurement probe assembly is provided for measurements away from a solid surface or a vehicle wall. The assembly includes a plurality of micron-sized floating element drag sensors mounted on a 2 mm stainless steel needle. The needle is in turn supported by a streamlined probe which provides both a support for the needle-drag sensor assembly and a conduit for electrical lead. The electrical leads connect the drag sensing elements, which contain piezo-resistive elements, to an external portion of a bridge. These resistive elements form one-half of a bridge. the remaining bridge elements, amplifiers, read-out circuits and power supply are located outside the probe.
- Theoretical Mathematics
- Fluid Mechanics