Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Reexamination Certificate
2005-06-24
2008-03-18
Tarcza, Thomas H. (Department: 3662)
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
C356S614000
Reexamination Certificate
active
07345745
ABSTRACT:
An optical device for measuring the displacement velocity of a first movable element in relation to a second element which is fixed to one of said elements and comprises two lasers transmitting two incident beams towards the other elements. The device including photosensitive linear arrays for front and rear detection which are substantially perpendicular to each other. Additional front and rear photosensitive linear arrays are disposed at a distance from the photosensitive front and rear linear arrays. A processing circuit is connected to the photosensitive linear arrays and determines the longitudinal and/or transversal displacement velocity of the movable element. The circuit also determines the distance between the device and the other element by means of optical triangulation and corrects the longitudinal and/or transversal displacement velocity value according of the said distance.
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Cattin Viviane
Flament Bruno
Fourcault William
Peltie Philippe
Brainard Tim
Commissariat a l''Energie Atomique
Oliff & Berridg,e PLC
Tarcza Thomas H.
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