Accession Number:

ADD018543

Title:

Orthogonal Shear Stress Measurement Probe Assembly for Boundary Layer Flow.

Descriptive Note:

Patent, Filed 19 June 95, patented 22 Apr 97,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1997-04-22

Pagination or Media Count:

9.0

Abstract:

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.

Subject Categories:

  • Theoretical Mathematics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE