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1. (WO2017015764) STATICALLY-BALANCED MECHANISM USING HALBACH CYLINDERS

Pub. No.:    WO/2017/015764    International Application No.:    PCT/CA2016/050891
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Fri Jul 29 01:59:59 CEST 2016
IPC: G01M 1/30
Applicants: HYDRO-QUEBEC
UNIVERSITE LAVAL
Inventors: BOISCLAIR, Julien
RICHARD, Pierre-luc
LALIBERTE, Thierry
GOSSELIN, Clément
Title: STATICALLY-BALANCED MECHANISM USING HALBACH CYLINDERS
Abstract:
A mechanism comprises a first Halbach cylinder having an inner cavity, the first Halbach cylinder magnetized to produce a first magnetic flux concentrated circumferentially inside the inner cavity. A second Halbach cylinder is concentrically received in the inner cavity of the first Halbach cylinder to concurrently form a rotational joint having a rotational axis. One of the Halbach cylinders is a rotor and the other of the Halbach cylinders is a stator, the second Halbach cylinder magnetized to produce a second magnetic flux concentrated circumferentially outwardly. An output is connected to the rotor to rotate therewith relative to the stator, the output applying a gravity load on the rotor, the gravity load being offset from the rotational axis, whereby the magnetic flux of the first Halbach cylinder and the second Halbach cylinder cooperatively produce a torque against the gravity load caused by the output.