Accession Number : ADD001853

Title :   Wind Tunnel Model Support and Measuring System with Three-Degrees-of-Freedom.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Horanoff,Eugene V

Report Date : 18 Feb 1975

Pagination or Media Count : 5

Abstract : The patent describes a wind tunnel model support and a spherical air bearing with three-degrees-of-freedom having optical readout of angles of pitch, yaw, and roll of an aerodynamic model. The readout system uses a plurality of fiberoptics light guides, spaced 1 deg apart for each of the axes of rotation at the air bearing, which conduct the light to photo-electric pickups at the other ends at a remote site. A light source illuminates the light guides at the air bearing and movable masks, connected to the model, occults the light beam to successive light guides. The output of each photo-electric pickup thereby indicates the angle of rotation of the model.

Descriptors :   *Patents, *Test fixtures, *Wind tunnels, *Supports, Models, Bearings, Sting mounts, Degrees of freedom, Fiber optics, Photoelectric effect, Aerodynamic characteristics, Measurement, Angles

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE