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Pub. No.:    WO/1981/002627    International Application No.:    PCT/US1980/000378
Publication Date: 17.09.1981 International Filing Date: 07.04.1980
G01B 11/00 (2006.01), G01B 9/02 (2006.01)
Priority Data:
127672 06.03.1980 US
Abstract: front page image
(EN)A coordinate locating device (8) includes an apparatus (10) having first, second, and third members (21, 22, 23) such that the first member (21) is movable on a base (14), the second member (22) is movable on the first member (21) and the third member (23) has a positionable element (30) and is movable on the second member (22). The device (8) also includes a laser transducer system (16) for establishing the locations of a starting point (52) and a first plane (54) through the starting point (52) which is associated with the first members (21), a second plane (58) having a second reference point (59) which is associated with the second member (22), and a third plane (62) having a third reference point (63) which is associated with the third member (23), and establishing the precise three dimensional location of the positionable element (30). Preferably, a plurality of laser beam reflectors are arranged in a preselected pattern on each of the first, second and third members (21, 22, 23) for reflecting a corresponding plurality of laser beams back toward the associated elements mounted on the base, first and second members (14, 21, 22) respectively, so that yaw, pitch and roll movements can be measured in addition to simple X, Y and Z linear displacement between the various moving stages thereof.
(FR)Un dispositif de determination de coordonnees (8) comprend un appareil (10) ayant un premier, un second et un troisieme organes (21, 22, 23), le premier organe (21) etant mobile sur une base (14), le second organe (22) etant mobile sur le premier organe (21) et le troisieme organe (23) ayant un element positionnable (30) et etant mobile sur le second organe (22). Le dispositif (8) comprend egalement un systeme transducteur a laser (16) pour etablir les positions d"un point de depart (52) et un premier plan (54) passant par le point de depart (52) qui est associe au premier organe (21), un second plan (58) ayant un second point de reference (59) qui est associe au second organe (22), et un troisieme plan (62) ayant un troisieme point de reference (63) qui est associe au troisieme organe (23), et pour etablir la position precise tridimentionnelle de l"element positionnable (30). De preference, une pluralite de reflecteurs de rayons laser sont disposes suivant une configuration predeterminee sur chacun des premier, second et troisieme elements (21, 22, 23) pour reflechir une pluralite de rayons laser correspondants et les renvoyer vers les elements associes montes sur la base, les premier et second elements (14, 21, 22) respectivement, de sorte que les mouvements de lacet, de tangage et de roulis puissent etre mesures en plus du deplacement lineaire simple X, Y et Z entre les diverses etapes de deplacement.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)