report_circuit_exp3

report_circuit_exp3 - BERZEIT UNIVERSITY FACULTY OF...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
BERZEIT UNIVERSITY FACULTY OF ENGINEERING ELECTRICAL ENGINEERING DEPARTMENT Experiment number 3 First and second order circuits Prepared by Muawiya Asali 1080369 Jihad Bessomi 1080332 Yasser Abu Qtesh 1081108 Supervised by Dr. Naser Ismael Assistant. Mohammad Daghra Section -1- Objective 1. To use the Oscilloscope to measure electric values. 2. To test and analyze the time responses of RL and RC circuits. 3. To test and analyze the time response of the second order RLC circuit. 4. To test the effect of the initial state of the dynamic elements on the time response. 5. To determine the first and second order circuits parameters from the circuit response. Equipment Used
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
1. Digital Multi-meter. 2. Oscilloscope (TDS-2002B). 3. Power supply. 4. Signal generator. 5. KL-24002 and KL-24001 Basic Electricity Module. Theory this experiment has many concepts that we should be aware of before starting the real practical work . let’s introduce a brief explanation of each one of these terms: Time Constant (τ): A measure of time required for certain changes in voltages and currents in RC and RL circuits. Generally, when the elapsed time exceeds five time constants (5τ) after switching has occurred, the currents and voltages have reached their final value, which is also called steady-state response. Mathematical formula: RC circuit τ = RC (0.63% of the max value) RL circuit τ = L / R We can determine the steady state voltage across the capacitor by observing the value of the voltage across it after a long time the input voltage has switched. VC(t) =V( 1- e^-t/RC) charging on the capacitor. In an RL circuit: The expression for the current build-up across the Inductor is given by : iL(t) = V/R( 1 – e-(R/L)t ) RLC circuit: First of all, there is a feature of RLC circuit that we should be aware of, which is called the damping factor:
Background image of page 2
According to the value of this factor we can evaluate the nature of the response. Another feature called attenuation factor alfa and its mathematical expression is: Other mathematical expression that we will need: - OS% (overshoot) = (Vm-Vf)/Vf *100% - Wd = ln(Vm) – ln(V2) / t2 – tm - Attenuation factor = 1/ t2 – tm Procedure For simplicity, let’s divide the procedure into parts as stated in the lab manual. A.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/23/2011 for the course ENCS ENCS5 taught by Professor Abdelsalam during the Spring '10 term at Birzeit University.

Page1 / 9

report_circuit_exp3 - BERZEIT UNIVERSITY FACULTY OF...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online