Test system for equipped and unequipped printed circuit boards

Details Test system for equipped and unequipped printed circuit boards Test system for equipped and unequipped printed circuit boards

G - Physics

01

R

G01R 31/28 (2006.01) G01R 1/067 (2006.01) G01R 1/073 (2006.01)

Patent

CA 2188273

A device for testing substantially flat circuit carriers or printed circuit boards which are unequipped or which are equipped with electronic components comprises a contact connection device having a plurality of test needles, each test needle being provided in accordance with the invention with its own motor drive for setting the position of the tip of the test needle at any points of a three-dimensional portion of space at the contact connection device ("dancing needles"). For this purpose each test needle is disposed in a currently preferred embodiment on its own platform which is in the form of a wobble plate and the position of which can be adjusted in space by motor.

Appareil destiné à essayer des supports sensiblement plats de circuits ou des plaquettes de circuits imprimés qui ne sont pas équipés ou qui sont équipés de composants électroniques, cet appareil comprenant un dispositif de mise en contact possédant une pluralité d'aiguilles d'essai, chacune de celles-ci étant pourvue, selon l'invention, de son propre entraînement moteur destiné à régler la position de la pointe de l'aiguille sur un point quelconque d'une portion tridimensionnelle d'espace au niveau du dispositif de mise en contact ("aiguilles flottantes"). Dans ce but, chaque aiguille d'essai est placée, dans un mode de réalisation généralement préféré, sur sa propre plate-forme, laquelle revêt la forme d'un plateau oscillant dont la position peut être réglée dans l'espace par un moteur.

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