TY - GEN
T1 - On the role the friction plays in an ultra precision positioning system
AU - Hsieh, Chen
AU - Yang, Kang Chin
PY - 2009
Y1 - 2009
N2 - Friction, due to its destabilizing and drastic magnitude variation between stick and slip, is commonly considered as a detrimental factor to a positioning system. This paper, based on the new knowledge about pre-sliding dynamics, tries to put forward another point of view; it shows that the spring-damper-like property in the pre-sliding phase makes it possible to achieve the so called Precision Limit Position (PLP). With this kind of positioning, the position error and amount of in-position vibration of the system can remain to be equal to the resolution of the position sensor used in the feedback loop. This is, of course, the limit of the precision that a practical positioning system can achieve.
AB - Friction, due to its destabilizing and drastic magnitude variation between stick and slip, is commonly considered as a detrimental factor to a positioning system. This paper, based on the new knowledge about pre-sliding dynamics, tries to put forward another point of view; it shows that the spring-damper-like property in the pre-sliding phase makes it possible to achieve the so called Precision Limit Position (PLP). With this kind of positioning, the position error and amount of in-position vibration of the system can remain to be equal to the resolution of the position sensor used in the feedback loop. This is, of course, the limit of the precision that a practical positioning system can achieve.
UR - http://www.scopus.com/inward/record.url?scp=77950391050&partnerID=8YFLogxK
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U2 - 10.1109/ICCA.2009.5410613
DO - 10.1109/ICCA.2009.5410613
M3 - Conference contribution
AN - SCOPUS:77950391050
SN - 9781424447060
T3 - 2009 IEEE International Conference on Control and Automation, ICCA 2009
SP - 1080
EP - 1085
BT - 2009 IEEE International Conference on Control and Automation, ICCA 2009
T2 - 2009 IEEE International Conference on Control and Automation, ICCA 2009
Y2 - 9 December 2009 through 11 December 2009
ER -