Actuation of magnetic beads due to analogous position control by means of electromagnetic fields
This paper refers to the positioning of magnetic beads independent from the arrangement of the electromagnets used. To demonstrate the off-axis positioning of magnetic beads such as ferrofluid droplets, ferrogels or ferroelastomers a basic assembly consisting of two electromagnets, a laser sensor an...
Gespeichert in:
| Veröffentlicht in: | Actuator 10 |
|---|---|
| 1. Verfasser: | |
| Weitere Verfasser: | , |
| Pages: | 10 |
| Format: | UnknownFormat |
| Sprache: | eng |
| Veröffentlicht: |
2010
|
| Schlagworte: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Tag hinzufügen | Zusammenfassung: | This paper refers to the positioning of magnetic beads independent from the arrangement of the electromagnets used. To demonstrate the off-axis positioning of magnetic beads such as ferrofluid droplets, ferrogels or ferroelastomers a basic assembly consisting of two electromagnets, a laser sensor and a FPGA is used. The controller is designed by means of a model of the plant which is described by nonlinear ordinary differential equations. Finally, the parameters of the control law are adjusted due to results of system identification and the controller itself is implemented on the FPGA. The latter actuates each electromagnet based on the derived control strategy whereat the dynamics behaviour of the positioning is characterised by a user-defined time constant. Experimental investigations confirm that the desired dynamic behaviour can be achieved. |
|---|---|
| ISBN: | 393333912X 9783933339126 |