TY - GEN
T1 - Improved air gap control using optimized anti-shock control algorithm for SIL-based near-field storage system
AU - Kim, Jung Gon
AU - Park, Kyoung Su
AU - Park, No Cheol
AU - Yang, Hyunseok
AU - Park, Young Pil
PY - 2009
Y1 - 2009
N2 - In this paper, the optimized anti-shock control algorithm is developed and implemented in an solid immersion lens (SIL)-based near-field (NF) storage systems to improve air gap control performance during dynamic conditions. Accordingly, to detect the stable gap error signal under continuous operating conditions, the air gap control performance must be increased to avoid collisions due to external shocks. In this study, we propose an anti-shock air gap control system using a double disturbance observer (DOB) and a dead-zone non-linear controller. Experimental results demonstrate that a double DOB with a dead-zone non-linear controller maintained the optical head with SIL optics for a 5.31 G@10 ms shock. Thus, the air gap control performance in the presence of external shocks was improved.
AB - In this paper, the optimized anti-shock control algorithm is developed and implemented in an solid immersion lens (SIL)-based near-field (NF) storage systems to improve air gap control performance during dynamic conditions. Accordingly, to detect the stable gap error signal under continuous operating conditions, the air gap control performance must be increased to avoid collisions due to external shocks. In this study, we propose an anti-shock air gap control system using a double disturbance observer (DOB) and a dead-zone non-linear controller. Experimental results demonstrate that a double DOB with a dead-zone non-linear controller maintained the optical head with SIL optics for a 5.31 G@10 ms shock. Thus, the air gap control performance in the presence of external shocks was improved.
UR - http://www.scopus.com/inward/record.url?scp=72749112606&partnerID=8YFLogxK
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U2 - 10.1109/ISOT.2009.5326106
DO - 10.1109/ISOT.2009.5326106
M3 - Conference contribution
AN - SCOPUS:72749112606
SN - 9781424442102
T3 - ISOT 2009 - International Symposium on Optomechatronic Technologies
SP - 98
EP - 103
BT - ISOT 2009 - International Symposium on Optomechatronic Technologies
T2 - ISOT 2009 - International Symposium on Optomechatronic Technologies
Y2 - 21 September 2009 through 23 September 2009
ER -