Optics: measuring and testing – Angle measuring or angular axial alignment – With photodetection remote from measured angle
Patent
1988-09-30
1990-06-12
Tarcza, Thomas H.
Optics: measuring and testing
Angle measuring or angular axial alignment
With photodetection remote from measured angle
33263, 73147, 342 54, 356 1, 356141, 364433, 364435, G01C 100, G01M 900
Patent
active
049327771
ABSTRACT:
An electro-optical spin measurement system for a spin model in a spin tunnel includes a radio controlled receiver/transmitter, targets located on the spin model, optical receivers mounted around the perimeter of the spin tunnel and the base of the spin tunnel for receiving data from the targets, and a control system for accumulating data from the radio controlled receiver and receivers. Six targets are employed. The spin model includes a fuselage, wings, nose and tail. Two targets are located under the fuselage of the spin model at the nose tip and tail, two targets are located on the side of the fuselage at the nose tip and tail, and a target is located under each wing tip. The targets under the fuselage at the nose tip and tail measure spin rate of the spin model, targets on the side of the fuselage at the nose tip and tail measure angle of attack of the spin model, and the targets under the wing tips measure roll angle of the spin model. Optical receivers are mounted at 90.degree. increments around the periphery of the spin tunnel to determine angle of attack and roll angle measurements of the spin model and optical receivers are mounted at the base of the spin tunnel to define quadrant and position of the spin model and to determine the spin rate of the spin model.
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Fodale Robert
Hampton Herbert R.
Glenn Charles E. B.
Helfrich George F.
Manning John R.
Tarcza Thomas H.
The United States of America as represented by the Administrator
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