Apparatus for measuring the position of a luminous object

Details Apparatus for measuring the position of a luminous object Apparatus for measuring the position of a luminous object

G - Physics

01

S

354/25, 343/70

G01S 3/78 (2006.01)

Patent

CA 1250645

ABSTRACT OF THE DISCLOSURE APPARATUS FOR MEASURING THE POSITION OF A LUMINOUS OBJECT R.A.T.P. Régie Autonome des Transports Parisiens The invention relates to Apparatus for localising and locating a luminous object comprising an optical system and a sensor for the position of the image formed, the locating being performed first at high speed , then at low speed. The object of the invention is to achieve rapid localising with reduced risk of losing the object to be located. In accordance with the invention, the optical system comprises a wide-angle objective and a narrow angle objective, position sensors comprising two photocell devices for detecting the image position and the localising is obtained by coarse adjustment using the wide-angle objective then fine adjustment using the narrow angle- objective. The invention is applicable to localising tiles which are coming unstuck from a vault.

493435

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