Magnetohydrodynamic (mhd) actuator sensor

Details Magnetohydrodynamic (mhd) actuator sensor Magnetohydrodynamic (mhd) actuator sensor

H - Electricity

02

K

H02K 44/00 (2006.01) G01D 5/242 (2006.01) G01L 3/14 (2006.01) G01P 3/30 (2006.01) G01P 3/46 (2006.01) G01P 15/08 (2006.01) H02K 44/08 (2006.01)

Patent

CA 2561679

An MHD sensor/actuator is provided for generating torque as well as sensing angular displacements around a sense/torque axis. A column of conductive liquid which rotates within a circumferential channel having an inner circumferential surface and outer circumferential surface provides an inertial proof mass, the relative motion of which within the channel generates a torque or represents a sensed displacement about the common axis of the circumferential channel. According to certain embodiments, a cylindrical column of magnets are located coaxially with the circumferential channel to produce a radially oriented magnetic field which is perpendicular to the common axis. According to other embodiments, a magnetic ring is provided coaxially with the circumferential channel to produce a magnetic field in the direction of the common axis.

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