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Automatic Control and Real-Time Monitoring of Laser Cleaning and Laser Ablation

Published online by Cambridge University Press:  15 February 2011

Y.F. Lu
Affiliation:
Microprocessing Laboratory, Dept of Electrical Engineering and Data Storage Institute, National University of Singapore, 10 Kent Ridge Crescent, Singapore119260
M. Meng
Affiliation:
Microprocessing Laboratory, Dept of Electrical Engineering and Data Storage Institute, National University of Singapore, 10 Kent Ridge Crescent, Singapore119260
M.H. Hong
Affiliation:
Microprocessing Laboratory, Dept of Electrical Engineering and Data Storage Institute, National University of Singapore, 10 Kent Ridge Crescent, Singapore119260
T.S. Low
Affiliation:
Microprocessing Laboratory, Dept of Electrical Engineering and Data Storage Institute, National University of Singapore, 10 Kent Ridge Crescent, Singapore119260
D.S.H. Chan
Affiliation:
Microprocessing Laboratory, Dept of Electrical Engineering and Data Storage Institute, National University of Singapore, 10 Kent Ridge Crescent, Singapore119260
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Abstract

Closed-loop control and real-time monitoring of pulsed excimer laser cleaning and ablation have been realised by software and hardware design and development. The audible acoustic wave generated during excimer laser surface cleaning and ablation has been used as the feedback signal for the automatic control system of laser-surface interaction. Man–machine interface for laser operation and acoustic monitoring has been developed with LabVIEW 4.1 under Windows 95 environment. This system has been used to control and monitor laser cleaning and ablation processes in real-time and proven to successfully meet the requirements in our study. By database exchange, this automatic control system can also be applied to control drilling and materials removing.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

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