Browsing by Author "Addoddorn, Chaiporn"
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- PublicationMATLAB/SimulinkStudy of the Effect from Noise Signalto X-Ray Tube Control System in DynamicOperation Using MATLAB/Simulink(Chulalongkorn University Printing House, 2011)
; University of the Thai Chamber of Commerce. Journal Editorial OfficeThis paper presents a study of the effect of the noise signal to X-ray tube controlsystem in a dynamic operation at different period values of noise signal by using theMATLAB/Simulink program for construction of a standard model control system ofX-ray tube on a computer. This control system, using a mathematical model ofLaplace Transform in the analysis and design control system at 100 kV input voltageand 400 mA. input current. The simulation confirms that the output current has to berather constant with between -0.64% to -0.98% error at periods of 1 ms. Furthermore,it confirms that the output current has to be an agreed percent error between -0.13%to -0.96% a period of 10 ms, and confirms that the output current has to be anagreed percent error between 0.13% to 0.36% at periods 100 ms respectively.12 37 - PublicationStudy the Effect of Stray Capacitance to the Impulse Voltage Generator by Using PSpice Program(Chulalongkorn University Printing House, 2009)
; University of the Thai Chamber of Commerce. Journal Editorial OfficeThis paper presents the effect of stray capacitance to the impulse voltage generator.The PSpice program is used to analyze, design and simulate the circuit in both withand without the stray capacitances in different positions of the circuit. From thesimulation, if the stray capacitance is neglected, the output impulse voltage will haveT1 equal 0.36 μs and T2 equal 41.40 μs with the peak voltage at 60.37 kV. If thestray capacitances are added, the values have changed to 0.41 μs, 42.30 μs and59.39 kV respectively. Later, compared the output impulse voltage at different valuesof stray capacitances, it confirms that the output impulse voltage will have T1 and T2were increased whereas the peak voltage were decreased. The results are comparedto the real implementation for analysis and correction. It can be the cause of analyzingand improving the shape of output impulse voltage corresponding to a standardvoltage model in practical.14 102