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Development of an Electromagnetic Linear Actuator Integrated with
Actuating, Position Sensing and Braking Functions and Research on its
Characteristics
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Abstract
The aim of this project is to develop an electromagnetic linear actuator integrated with position sensing and braking function. Based on the chosen actuating principle and the clamping form the entire structure and controlling system are designed and realized. For studying its movement modal and
characteristics experiments and finite element analysis are carried out. The stroke of the actuator is influenced directly by driving voltage. The positioning precision is decided by minimum stroke and heat effect of coils. There are several characteristics that differentiate the new developed electromagnetic linear actuator from its traditional counterparts. These are: (1) integrating actuating, position sensing, and braking function in an actuator, (2) position fixing without energy supply, (3) variable stroke, and (4) changing movement modal easily by changing the controlling program etc.
Keywords ¡G electromagnetic linear actuator, inductance principle, radial clamping tube, functional integration
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