Abstract:
An electronic fitness machine is provided, in which a user selects the output of the motor according to purpose by using reaction force generated contrary to the movement direction of a user by the drive of the motor. An electronic fitness machine comprises: a main body; a motor(200) installed at the main body; a motor output control unit including the controller controlling the load amount measuring unit, the input unit and output of the motor; a weight training part(400) in which a user applies the external force by grasping and walking; and a connection unit connecting the weight training part and the motor. The main body comprises 5 frames(120). The connection unit comprises a wire(300) connecting more than one pulley installed at the main body, the motor, and the weight training part.
Abstract:
A non-contact revolving stage is provided to perform the rotation of a rotor and minute perturbation toward a semi-diameter direction of a rotor, by stable floating of the rotor with only magnetic force between a stator and the rotor. In a non-contact revolving stage system, a longitudinal magnetic flux induction motor(120,121,122) comprises a plurality of electromagnets. The electromagnets are arranged along a circumference direction in an equivalent gap. A secondary part comprising a conductor(110) and a yoke(111) is arranged on the bottom of the induction motor. The secondary part is floated and rotated without contacting with the induction motor.
Abstract:
A walking robot having a hydraulic motion control device and a method for controlling the same are provided to improve walking stability of the walking robot by allowing the walking robot to walk according to an orbit of a ZMP(Zero Moment Point). A walking robot having a hydraulic motion control device comprises a pair of foot members(11a,11b), a pair of leg members provided at upper portions of the foot members, thigh members provided at upper portions of the leg members, and pelvic members(50) provided at upper portions of the thigh members. Upper tanks(21a,21b) are installed at upper portions of the pelvic members, intermediate tanks(26a,26b) serving as the thigh members are installed at lower portions of the pelvic members, and lower tanks(27a,27b) serving as the leg members are installed at lower portions of the thigh members. A base frame(40) is located on the pelvic members and a hydraulic tank unit(21) is installed on the base frame. A hydraulic pump(60) is installed at one side of the hydraulic tank unit to supply fluid to the tanks.
Abstract:
A non-contact planar stage and a control method thereof are provided to extend a driving area by enlarging a conductive plate. A first directional linear induction motor unit includes a plurality of linear induction motors arranged in parallel. A second directional linear induction motor unit includes a plurality of linear induction motors arranged in an orthogonal direction to the first directional linear induction motor unit. At least one of the linear induction motors is arranged to generate the thrust of the opposite direction of the other linear induction motors inside the same linear induction motor unit. Each linear induction motor includes a plurality of ferromagnetic cores and a coil wound around the ferromagnetic cores. A non-contact planar stage(100) is moved on the conductive plate with a ferromagnetic uneven part(300) by the magnetic force generated between the first directional linear induction motor unit, the second directional linear induction motor unit, and a conductive plate(310).