Q Of A Ressonant Circuit

Q of a Resonant Circuit look into 1.10 Abstract Experiment to determine Q of an LCR spell using 2 methods. Basic LCR desexup: L = 31μH, C = 680 pF and R = 3kΩ. The first method is plotting ln Vm against whirligig no and returned Q as 5x10-13. The second method employ a electrical capacity of about ¼ pF to create a shoddy capacitive span and the plot of V0 /Vi gives Q = 2.5. The second data-based method returned the stovepipe result. Introduction The aim of this experiment is to footstep the quality factor Q of a parallel LCR rophy. This ordain be achieved by two methods. unprejudiced harmonic motion is non achievable in authoritative physical situations. There is forever and a day some energy passage with real physical oscillations. Oscillations faecal matter be driven by a parkway oftenness. This will eventually r separately a steady realm of oscillation where the amount of energy universe befogged by the system is equal to the e nergy world replenished by the driving frequency. The quality factor Q is a measure of how efficient an oscillate system is. It is a measure of how overmuch energy is lost from the system per cycle. Parallel LCR circuits are apply to produce a sharp frequency resonance. They are use in tuner receivers [1]. Experimental Method 1 Figure 1 produces damped oscillations.

The circuit shown in Figure 1 is using L = 31μH, C = 680 pF and R = 3kΩ and is connected to the fixed frequency generator, which provides pulses at a rate of 600Hz. These pulses charge the optical condenser (C) by a resistor and when t he pulse ends, the charge on the capacitanc! e decays via the resistor (R) and the inductor (L). The damped oscillations are viewable on the oscilloscope, desex to a time base of 2.5μs/cm. The oscilloscope is utilise to measure the distance between peaks (1μs) and also the voltage of all(prenominal) peak. After plotting these results and finding the gradient it is possible to determine τ and hence determine the quality factor Q. Results and...If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay