Socpra Sciences Et Genie S.e.c.

Societe De Commercialisation Des Produits De La Recherche Appliquee Socpra Sciences Et Genie S.e.c.

Exonetik Inc.

Alexis Lussier Desbiens

Pascal Larose

Jean-Sebastien Plante

David Rancourt

Jonas Truong

Camille Brousseau

A system for controlling a tension of a tether between an object and a load tethered to the object comprises magnetorheological (MR) fluid actuator unit(s) including at least one torque source and at least one MR fluid clutch apparatus coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output of the MR fluid actuator unit. A tensioning member is connected to the output so as to be pulled by the output member upon actuation of the magnetorheological fluid clutch apparatus, a free end of the tensioning member adapted to exert a pulling action when being pulled by the output member. Sensor(s) provide information indicative of a relation between the object and the load tethered to the object. A controller controls the at least one MR fluid clutch apparatus in exerting the pulling action based on said information.

Tethered payload motion control and cable robot using magnetorheological actuators

An apparatus for measuring a deformation distribution of an object having a longitudinal dimension comprises a structure for supporting the object. A sensor unit comprises a base, a contact member having a body connected to the base by a rotational joint such rotational degrees of freedom are provided between the base and the contact member, an end of the body configured to contact and move along the object, and at least one sensor for determining an orientation of the body relative to the base. A displacement module enables relative movement between the sensor unit and the structure for the sensor unit to relatively move along the object in the longitudinal dimension. A method and system for measuring a rigidity distribution of an object having a longitudinal dimension are also provided.

Method and apparatus for measuring rigidity distribution

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Sherbrooke, Canada

Alexis Lussier Desbiens