A new design of excitation mechanism to be exploited by modern rf excited co2 lasers

Download

index.pdf

Date

2004

Author

Kurucu, R. Salur

Metadata

Show full item record

Item Usage Stats

225
views

118
downloads

On this thesis work, design and construction of an up to date complete RF excitation system was intended. This excitation system is mainly based on highly efficient switching power generators and proper coupling of the power to the object plasma. This new excitation system design should answer the demands of today's progressed CO2 lasers on various power ranges. Though it could be used by a large variety of applications including RF plasma and RF heating, on the first occasion in order to define design considerations, this system is to be exploited by RF excited fast flow and RF excited slab CO2 laser constructions.

Subject Keywords

Production of Electricity by Direct Electricity Conversion.

URI

http://etd.lib.metu.edu.tr/upload/12605394/index.pdf
https://hdl.handle.net/11511/14397

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Design of a single-phase full-bridge diode rectifier power factor corrector educational test system Ünal, Teoman; Üçtuğ, Yıldırım; Department of Electrical and Electronics Engineering (2006) In this thesis an educational test bench for studying the power quality attributes of the commonly used single-phase full-bridge diode rectifiers with power factor correction (PFC) circuits is designed and tested. This thesis covers the active and passive power factor correction methods for single-phase bridge rectifier. Passive filtering approach with dc side inductor and tuned filter along with active filtering approach via singleswitch boost converter is considered. Analysis, simulation, and design of a ...
Design of a ZVS QRC converter for educational test bench Şengüzel, İsmail; Üçtuğ, Yıldırım; Department of Electrical and Electronics Engineering (2006) In this thesis, the conventional pulse-width modulated (PWM) and zero-voltage switching (ZVS) quasi-resonant buck converters are analyzed and a variable-frequency control technique is proposed to regulate the output voltage due to the immediate input line and load changes. The quasi-resonant technique provides favorable switching conditions for active switch to reduce switching losses and electromagnetic interference (EMI). The method is based on shaping the voltage across the active switch in quasisinusoid...
Design of a tubular switched reluctance linear generator for wave energy conversion based on ocean wave parameters Mendes, R. P. G.; Calado, M. R. A.; Mariano, S. J. P. S.; Cabrita, C. M. P. (2011-09-10) This work presents a procedure for the design and analysis of a linear tubular switched reluctance generator for wave energy conversion. The generator is meant to be applied to a direct drive wave energy converter, namely a point absorber. The device is modeled according to wave climate conditions at Esposende site in the Portuguese coast. The procedure starts with statistical analysis of the local random ocean behavior in order to determine most likely values of occurrence for the wave parameters in questi...
A New Temperature-Tolerant RF MEMS Switch Structure Design and Fabrication for Ka-Band Applications Demirel, Kaan; Yazgan, Erdem; Demir, Şimşek; Akın, Tayfun (2016-02-01) In this paper, the design and fabrication of a new radio frequency (RF) microelectromechanical system (MEMS) switch structure is presented. This RF MEMS switch is developed to get the minimum permanent deformation on the microbridge after 200 degrees C thermal treatment. The residual stress-based buckling on the MEMS bridge is simulated for 5-40-MPa/mu m stress gradient (Delta sigma) with 5-MPa/mu m steps. The temperature-dependent extension and deformation on the MEMS bridge are modeled up to 270 degrees C...
Design and implementation of high fill factor structures on low-cost uncooled infrared sensors Ertürk, Ozan; Akın, Tayfun; Department of Electrical and Electronics Engineering (2015) This thesis presents the design and implementation steps of high fill factor structures for existing SOI diode low-cost microbolometer FPAs. Advancements in uncooled infrared detectors enable high performance military grade uncooled microbolometers as well as ultra-low-cost infrared imagers for civilian applications. The trend in uncooled microbolometers to reduce the pixel pitch has become increasingly significant to lower the cost of detector and system integration due to optics, and increase spatial reso...

Citation Formats

R. S. Kurucu, “A new design of excitation mechanism to be exploited by modern rf excited co2 lasers,” M.S. - Master of Science, Middle East Technical University, 2004.