3results about How to "Improve control characteristics" patented technology

The utility model belongs to the technical field of artificial heart-left ventricle auxiliary circulation equipment, and particularly discloses an LVAD motor stator system, which comprises an outer stator, an inner stator and a winding arranged between the outer stator and the inner stator, the inner stator is formed by stacking a plurality of silicon steel ring sheets, an axial modulation groove is arranged along the circumferential direction of the inner side of the inner stator, and the inner side of the inner stator is connected with the winding. According to the utility model, the modulation grooves are arranged in the inner stator, so that the harmonic amplitude is reduced, and the fluctuation of the torque is reduced. The utility model also discloses a motor which is filled with epoxy resin, so that the relative positions of related parts are ensured, the coaxiality and dynamic balance of the related parts are ensured, the motor is stable in high-speed operation, the vibration can be reduced, the motor has relatively good biological safety, relatively high heat conductivity coefficient and chemical stability, and the heat is quickly dissipated when the motor is in high-speed operation. The device is suitable for being placed in a human body.

The application discloses a high-load leg-foot robot based on hydraulic static support and a control method, and belongs to the field of leg-foot robots. The robot comprises a lower leg rod, a thigh rod, a thigh parallel rod, a lower leg parallel rod, a lower leg steering rod, a thigh steering rod, a thigh slider connecting rod, a lower leg slider connecting rod, a thigh slider, a lower leg slider and a hydraulic drive unit. The application adopts a structure form of connecting rods plus a hydraulic drive unit, can transfer the load of the leg-foot robot support phase to the hydraulic drive unit, and supports statically by the hydraulic drive unit. Moreover, in the motion state, the hydraulic drive unit does not cause interference to the motion of the leg swing phase. The application can be used for the structural optimization of the existing leg-foot robot, and can effectively improve the load capacity of the leg-foot robot.

This invention discloses an electromagnetic chuck control device and a control method for the electromagnetic chuck control device. The electromagnetic chuck control device includes: a command input module, a main controller, a phase-shift trigger, a thyristor module, an electromagnetic chuck, and a sampling feedback module. The command input module is connected to the main controller and is used to transmit external commands to the main controller. The sampling feedback module is connected between the electromagnetic chuck and the main controller and is used to sample the current and voltage of the electromagnetic chuck and feed them back to the main controller. The phase-shift trigger is connected between the main controller and the thyristor module and is used to trigger the thyristor module according to the trigger signal sent by the main controller. The thyristor module is connected to the electromagnetic chuck and is used to rectify AC voltage into DC voltage and control the electromagnetic chuck. This invention can improve the adjustment accuracy and working efficiency of the electromagnetic chuck's magnetic force and enhance the intelligence level of the electromagnetic chuck device.