Electro-optic space positioner

Details Electro-optic space positioner Electro-optic space positioner

1977-07-15

1979-01-30

Gill, James J.

Measuring and testing

Vibration

Sensing apparatus

356141, G01M 900, G01H 900

Patent

active

041365682

ABSTRACT:
An electro-optic sensor including a cylindrical lens and a photosensitive diode array at the focal plane of the lens for measuring the angular displacement of a point light source from the neutral plane of the lens.
In one application of the inventions the vibrational characteristics of an aircraft wing structure under load can be determined. A plurality of light emitters are judiciously scattered over the surface of the wing and the electro-optic sensor is attached to the fuselage. The emitters are sequentially energized and the readings of the sensor are synchronized with the emitters to provide the desired data. In other applications a pair of sensors will give two dimensional information and two pairs can be used to give three dimensional information.

REFERENCES:
patent: 2700318 (1955-01-01), Snyder
patent: 3486826 (1969-12-01), Colvin et al.
patent: 3706493 (1972-12-01), Redmann
patent: 3858201 (1974-12-01), Foster
patent: 3951550 (1976-04-01), Slick

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