A Dynamic Model for Condition Monitoring of a High-Power CO2 Industrial Laser-Reference-Cited by-同舟云学术

A Dynamic Model for Condition Monitoring of a High-Power CO2 Industrial Laser

Published:1999-06-01 Issue:2 Volume:121 Page:157-164
ISSN:0022-0434
Container-title:Journal of Dynamic Systems, Measurement, and Control
language:en
Short-container-title:

Author:

Tu J. F.¹,Katter J. G.²,Monacelli L. E.³,Gartner M.³

Affiliation:

1. School of Industrial Engineering, Purdue University, West Lafayette, IN 47907-1287

2. Manufacturing and Logistics Technology, Caterpillar Inc.

3. ATEO, Ford Motor Company, Box-16, 36200 Plymouth Rd., Livonia, MI 48150

Abstract

Industrial laser systems handle high power consumptions and may function under undesirable operating conditions if the systems are not properly maintained. It is sometimes difficult to diagnose why a laser is not functioning properly because the optical output is the result of complex interactions among many parameters such as the total gas pressure, effectiveness of the laser cooling system, operating environment, and gradual deterioration of laser components. In this paper, a dynamic power distribution model is developed to characterize the power distribution of a high-power transverse-flow DC-excited CO2 laser to account for dynamic effects such as continuously ramping up and down the laser output power and the cyclic nature of the chiller. The model contains the essential dynamic features of a CO2 laser system and yields solutions sufficiently accurate for practical diagnostic purposes.

Publisher

ASME International

Subject

Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering

Link

http://asmedigitalcollection.asme.org/dynamicsystems/article-pdf/121/2/157/5515779/157_1.pdf

Reference18 articles.

1. Denes L. J. and LowkeJ. J., 1973, “V-I Characteristics of Pulsed CO2 Laser Discharges,” Applied Physics Letters, Vol. 23, No. 3, pp. 130–132.

2. Incropera, F. P., and DeWitt, D. P., 1985, Introduction to Heat Transfer, Wiley, New York.

3. Hsu C. R. , AlbrightC. E., and KhakhalevA., 1996, “The Influence of Laser Cavity Gaseous Impurities on the Performance of an Industrial CO2 Laser,” Journal of Laser Applications, Vol. 8, pp. 275–283.

4. Katter J. G. , TuJ. F., and GartnerM., 1997, “A Power Distribution Model of CO2 Lasers for System Diagnosis,” Journal of Laser Applications, Vol. 9, pp. 161–169.

5. Katter J. G. , TuJ. F., MonacelliL. E., and GartnerM., 1998, “Predictive Cathode Maintenance of an Industrial Laser Using Statistical Process Control Charting,” Journal of Laser Applications, Vol. 10, pp. 161–169.

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