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A Model Of Temperature Effects In Pulsed And Continuous Wave Co2 Lasers And Optimization Using Response Surface Methodology
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Book Synopsis A Model of Temperature Effects in Pulsed and Continuous Wave CO(2) Lasers and Optimization Using Response Surface Methodology by :
Download or read book A Model of Temperature Effects in Pulsed and Continuous Wave CO(2) Lasers and Optimization Using Response Surface Methodology written by and published by . This book was released on 1989 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study is to develop models of pulsed and continuous wave (CW) CO2 lasers on a personal computer, and to explore optimization of the computed output power using response surface methodology (RSM). The first program is based on a four-level point model of pulsed Co2 laser that predicts the temperature rise and the effects of temperature on the power, energy, and gain of the pulsed laser. The second program, derived from the first, is based on a four-level point model of a continuous wave CO2 laser and calculates the power, gain, small-signal gain, and saturation flux of the CW laser. Both models were verified and extensively validated against published data with good results. Finally, this study explored the optimization of the CW laser model using RSM and found an operating point for maximum power at 10 torr and 4% CO2. Several recommendations are included for upgrading the CO2 laser models and continuing the optimization.
Book Synopsis A Model of Temperature Effects in Pulsed and Continuous Wave CO2 Lasers and Optimization Using Response Surface Methodology by : Thomas B. Melancon (CAPT, USAF.)
Download or read book A Model of Temperature Effects in Pulsed and Continuous Wave CO2 Lasers and Optimization Using Response Surface Methodology written by Thomas B. Melancon (CAPT, USAF.) and published by . This book was released on 1989 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CO2 Lasers Effects and Applications by : W Duley
Download or read book CO2 Lasers Effects and Applications written by W Duley and published by Elsevier. This book was released on 2012-12-02 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: CO2 Lasers: Effects and Applications examines and summarizes the important applications of the device in different areas of study like physics, chemistry, and engineering. In some parts of the book, the reader is assumed to be knowledgeable in university level mathematics or some specialized area in physics or chemistry. The book consists of 10 chapters where the first two establish the general concepts on lasers and CO2 lasers, respectively. Chapter 3 takes the reader further and presents a comprehensive review of optical components for use such as detectors, windows, and mirrors. Because the CO2 laser is mostly used as a heat source, the theory of laser-surface heating is relevant in the discussion. This theory is presented in Chapter 4. Chapters 5 and 6 meanwhile present a summary of observations on cutting, welding, and some related topics. The following chapters discuss the different applications of CO2 lasers in different areas and processes. Some of these applications include in the generation of thermal effect, laser deposition of thin films, spectroscopy, laser photochemistry, and meteorology and communication systems. The text is a good source of reference to both students and scientists in the areas of physics, chemistry, and engineering.
Book Synopsis Journal of Current Laser Abstracts by :
Download or read book Journal of Current Laser Abstracts written by and published by . This book was released on 1990 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CO2 Laser written by Dan C. Dumitras and published by BoD – Books on Demand. This book was released on 2012-03-21 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book includes several contributions aiming a deeper understanding of the basic processes in the operation of CO2 lasers (lasing on non-traditional bands, frequency stabilization, photoacoustic spectroscopy) and achievement of new systems (CO2 lasers generating ultrashort pulses or high average power, lasers based on diffusion cooled V-fold geometry, transmission of IR radiation through hollow core microstructured fibers). The second part of the book is dedicated to applications in material processing (heat treatment, welding, synthesis of new materials, micro fluidics) and in medicine (clinical applications, dentistry, non-ablative therapy, acceleration of protons for cancer treatment).
Book Synopsis Low-Temperature CO-Oxidation Catalysts for Long-Life CO2 Lasers by : David R. Schryer
Download or read book Low-Temperature CO-Oxidation Catalysts for Long-Life CO2 Lasers written by David R. Schryer and published by . This book was released on 1990 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Coating Materials by : Liang Li
Download or read book Advanced Coating Materials written by Liang Li and published by John Wiley & Sons. This book was released on 2018-11-15 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the recent advances in coating materials and their novel applications at the cross-section of advanced materials both current and next-generation. Advanced Coatings Materials contains chapters covering the latest research on polymers, carbon resins, and high-temperature materials used for coatings, adhesives, and varnishes today. Concise chapters describe the development, chemical and physical properties, synthesis and polymerization, commercial uses, and other characteristics for each raw material and coating detailed. A comprehensive, yet practical source of reference, this book provides an excellent foundation for comparing the properties and performance of coatings and selecting the most suitable materials based on specific service needs and environmental factors.
Book Synopsis Fabrication of a Sealed Off Co2 Gas Laser by : Shahid Iqbal
Download or read book Fabrication of a Sealed Off Co2 Gas Laser written by Shahid Iqbal and published by . This book was released on 2002 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study consists of two parts. In the first part a mathematical model for sealed-off CW CO2 laser is developed. The developed model based on the four-temperaturemodel and is developed by modifying the steady CO2 laser model presented by Scott et al. [28]. The equations relating the modes energy verses intra cavity optical intensity in equilibrium are used for modelling. An energy balance equation involving the terms of power loading, optical power removed and power loss in the form of the heat removed through the laser tube walls is derived. The variation in the output power as the power loading is varied is predicted using the model. The predicted results of output power respective to the power loading are found to show the similar response as found experimentally. In second part a sealed off CO2 laser is fabricated using custom-made air-cooled laser tube with internal mirror design and power supply. Both laser tube and power supply are placed in custom made wooden box. The box is especially built for housing the laser components. The cooling of the laser tube and power supply is achieved by using four fans. An electronic circuitry to measure the laser tube temperature is developed. The laser is operated both in continuous wave mode as well as in pulse mode. A maximum power of 12.2 Watts is measured during contiunous wave mode operation at a current of 14 mA. The output power is found to decrease with further increase in current. During pulsed operation, the energy of the optical pulses is found to be maximum at 100 Hz and a decrease in the pulse energy is detected with further increase in the pulse repetition rate. The temperature is found to be the major factor effecting the laser power. Without fans the temperature of the laser tube is found to reach to 85oC in 10 minutes. The output power is also found to drop to zero at 85oC. However with running fans, the maximum temperature that laser tube wall could reach is found to be 55oC independent of the time. The laser power at 55o is found to be 9 Watts. The threshold and steady state voltage at the laser tube electrodes is also measured and is found to be 15640 volts and 8160 volts respectively. The CO2 laser is useful for industrial drilling, welding, cutting and for air ionization or discharge applications. The purpose of this research is to design 14 Watt CO2 gas laser for air ionisation and high voltage sphere gap triggering in the subsequent research.
Book Synopsis Preliminary Investigation of Ablative Material Response to High-intensity CO2 Laser Radiation by : William D. Brewer
Download or read book Preliminary Investigation of Ablative Material Response to High-intensity CO2 Laser Radiation written by William D. Brewer and published by . This book was released on 1970 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1990-04 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Papers on CO2 Lasers by : James David Evans
Download or read book Selected Papers on CO2 Lasers written by James David Evans and published by . This book was released on 1990 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of CO2 Laser Ablation Profiles of Continuous Wave and Pulsed Output in PMMA and Atherosclerotic Plaque by : Ghazala Siddiqi
Download or read book Study of CO2 Laser Ablation Profiles of Continuous Wave and Pulsed Output in PMMA and Atherosclerotic Plaque written by Ghazala Siddiqi and published by . This book was released on 1988 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Renewable and Sustainable Materials by :
Download or read book Encyclopedia of Renewable and Sustainable Materials written by and published by Elsevier. This book was released on 2020-01-09 with total page 4238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Renewable and Sustainable Materials, Five Volume Set provides a comprehensive overview, covering research and development on all aspects of renewable, recyclable and sustainable materials. The use of renewable and sustainable materials in building construction, the automotive sector, energy, textiles and others can create markets for agricultural products and additional revenue streams for farmers, as well as significantly reduce carbon dioxide (CO2) emissions, manufacturing energy requirements, manufacturing costs and waste. This book provides researchers, students and professionals in materials science and engineering with tactics and information as they face increasingly complex challenges around the development, selection and use of construction and manufacturing materials. Covers a broad range of topics not available elsewhere in one resource Arranged thematically for ease of navigation Discusses key features on processing, use, application and the environmental benefits of renewable and sustainable materials Contains a special focus on sustainability that will lead to the reduction of carbon emissions and enhance protection of the natural environment with regard to sustainable materials
