Potentiometer assembly for detecting angular torsional rotation - has cursor and track fixed to separate rotating shafts to signal relative movement

• Main Author: EZER BENAIN ET JEAN-CLAUDE JAMOIS
• Format: Patent
• Language: English; French
• Published: 11.02.1983
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

A shaft is provided peripheral grooves into which axial fixing rings are located. This shaft rotates inside a hollow shaft fixed to a cheek whose radial wall presses on one fixing ring. This cheek defines a housing for two bearings spaced by a ring. An annular extension to the cheek supports a bearing on which a cylindrical body rests. This has a step for another cheek housing a bearing on the shaft. This assembly forms a housing whose two parts move relative to each other. The free end of the cheek extension supports internally a ring supporting a potentiometric track. Externally it supports three conducting tracks in contact with brush contacts at different angular spacings. A tab carrying a cursor for the potentiometer enables the relative movements of the two shafts to be converted into a related signal. DEUX PIECES TOURNANTES SUJETTES A DECALAGE ANGULAIRE RELATIF 10 ET 11 SONT RESPECTIVEMENT FIXEES A UN FLASQUE 20, ET A UNE PISTE POTENTIOMETRIQUE 25, ET A UN CURSEUR 19. UN RENVOI DU CURSEUR 19 EST REALISE PAR DES EPINGLES CONDUCTRICES 29 COOPERANT AVEC UNE COURONNE CONDUCTRICE 17. LES CONNEXIONS D'EXTREMITE DE LA PISTE 25 AINSI QUE LES CONNEXIONS DE CURSEUR SONT RAMENEES SUR DES BAGUES COLLECTRICES 26 A 28, QUI SONT A LEUR TOUR RELIEES PAR DES FROTTEURS TELS QUE 34 A DES CONNEXIONS INDIVIDUELLES REALISEES SUR UNE PARTIE FIXE 30 DU DISPOSITIF POTENTIOMETRIQUE. L'ENSEMBLE PERMET NOTAMMENT LA MESURE DE TORSION SUR DES ARBRES EN ROTATION.