Measurements using tunnelling current between elongate...

Details Measurements using tunnelling current between elongate... Measurements using tunnelling current between elongate...

G - Physics

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G01B 7/14 (2006.01) G01Q 80/00 (2010.01) G01B 7/30 (2006.01) G01Q 60/10 (2010.01) G01P 3/46 (2006.01) G01R 31/00 (2006.01)

Patent

CA 2343261

Apparatus for use in measuring and/or monitoring the relative position or displacement of two elements, includes a pair of elongate electrical conductors (10, 11) adapted to be associated with the respective elements, and means (12, 13, 18) for disposing the conductors at a mutual separation such that a detectable quantum tunnelling current may be generated between them on application of an electrical potential difference between the conductors.

L'invention porte sur un appareil destiné à être utilisé dans la mesure et/ou le contrôle de la position relative ou le déplacement de deux éléments. Cet appareil comprend une paire de conducteurs (10, 11) électriques allongés conçus pour être associés aux éléments respectifs, et un dispositif (12, 13, 18) permettant de disposer les conducteurs au niveau d'une séparation mutuelle de sorte qu'un courant de pénétration par effet tunnel de quantité détectable puisse être généré entre ceux-ci lors de l'application d'une différence de potentiel électrique entre les conducteurs.

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