BIW2012 - List of Authors (Sirvent Blasco, J.L.)

Paper

Title

Page

Vacuum Actuator and Controller Design for a Fast Wire Scanner

195

J. Emery, B. Dehning, J.F. Herranz Alvarez, M. Koujili, J.L. Sirvent Blasco
CERN, Geneva, Switzerland

To cope with increasing requirements in terms of accuracy and beam intensity limits a wire scanner design is under development for the CERN accelerators complex. The main parameters have been determined; the wire speed should reach 20 m/s when interacting with beams with a position determination of 2um under a harsh and radioactive environment. To meet this goal, the proposed solution locates all moveable parts of the actuator and the angular sensors in the beam vacuum pipe in order to reduce the friction and to allow a direct position measurement. One absolute positioning sensor will be used for the brushless motor feedback and one custom, high precision incremental design will target the beam size determination. The laboratory tests set up for the actuator and the incremental sensor will be presented along with the motor control feedback loops optimization developed with the dSpace environment using Simulink and MatLab software tools. Finally, the development of the digital feedback platform and the control and acquisition system design for the future operational system will be discussed.

Poster TUPG029 [2.430 MB]

Paper	Title	Page
TUPG029	Vacuum Actuator and Controller Design for a Fast Wire Scanner	195
	J. Emery, B. Dehning, J.F. Herranz Alvarez, M. Koujili, J.L. Sirvent Blasco CERN, Geneva, Switzerland
	To cope with increasing requirements in terms of accuracy and beam intensity limits a wire scanner design is under development for the CERN accelerators complex. The main parameters have been determined; the wire speed should reach 20 m/s when interacting with beams with a position determination of 2um under a harsh and radioactive environment. To meet this goal, the proposed solution locates all moveable parts of the actuator and the angular sensors in the beam vacuum pipe in order to reduce the friction and to allow a direct position measurement. One absolute positioning sensor will be used for the brushless motor feedback and one custom, high precision incremental design will target the beam size determination. The laboratory tests set up for the actuator and the incremental sensor will be presented along with the motor control feedback loops optimization developed with the dSpace environment using Simulink and MatLab software tools. Finally, the development of the digital feedback platform and the control and acquisition system design for the future operational system will be discussed.
	Poster TUPG029 [2.430 MB]