Motion control plays a vital role in industrial atomization. Different types of motors AC, DC, SERVO or stepper are used depending upon the application; of these DC motors are widely used because of easier controlling. Among the different control methods for DC motor armature voltage control method using pulse width modulation (PWM) is best one. We can realize the PWM using H-bridge built with ...

The design idea to implement multi-subdividing drive system for stepping motor based on FieldProgrammable Gate Array chip was proposed in this paper. On a piece of EPF10K10LC84-15, the system module was accomplished using Very-High-Speed Integrated Circuit Hardware Description Language and graph editor. The simulation results were shown on the platform MAX+plus . This method could control the s...

The main advantage of linear motors is that they do not turn the electric energy supplied into a rotary movement, but convert it directly to a linear movement. The direct coupling of the mover armature to the load provides several performance benefits in addition, as high speeds, high precision, no backlash, high stiffness and fast response and settling times. In these circumstances it is inter...

1 Supported by the Nuclear Physics Division of the U. S. Dept. of Energy through the SBIR Program 2 E-mail: [email protected] Abstract Energen, Inc. has developed and demonstrated an SRF cavity tuning mechanism based on magnetic smart materials. Magnetic “smart” materials change their shape in a reversible and repeatable manner when exposed to a small magnetic field. A fine-tuning mechanism w...

OBJECTIVE The purpose of this study was to discover the differences among victims who had traumatic brain injury due to traffic accidents. METHODS Medical record of the head injury patients were analyzed according to their classification as traffic accident victims (pedestrian, motorcyclist or passenger and other motor vehicle deriver or passenger), age, gender, admission type (admitted from ...