Oscilloscope Lab Report

FACULTY OF ENGINEERING
DEPARTMENT OF BIOMEDICAL ENGINEERING
(PROSTHETICS & ORTHOTICS)

LAB 1: OSCILLOSCOPE AND THE APPLICATION
NAME : NURIN NAJIHAH BINTI MUHAMAD ZAWAHIR
MATRIC NUMBER : KED150025
LECTURER : MUHAMMAD S. A. ZILANY
SUBMISSION DATE : 6/3/2016

ABSTRACT This laboratory experiment is to learn and familiarize about the features, operation and application of oscilloscope. We measured and observed the electrical signal produced from AC and DC circuit by using three measuring techniques which are by manual, Cursor and Measure. Another property for AC circuit such as frequency, amplitude and others also be displayed on the screen and get it directly. On the other side, the circuit measured by oscilloscope are also

The measurement from two devices were observed and recorded in Table 1 and Table 2 . The DC power supply was replace with an AC power supply which has frequency of 5kHz as shown in Figure 4 below.

Figure 4: Schematic diagram of a series circuit connecting to AC power supply and two resistor.

The voltage across and current flow each resistor was measured by using DMM and then by using oscilloscope. The measurement including from two devices were observed and recorded in Table 3 and Table 4 . For the reading from AC circuit by using oscilloscope, the peak-to-peak magnitude, period, and frequency of the signal was measured and recorded after a stable waves is obtained.

TASK 3 : PHASE MEASUREMENT A series circuit was constructed by connecting a 100ɥF capasitor, 1 kohm resistor and a 4 kHz and 12Vpp function generator as shown in Figure 5 below. The voltages across resistor and capacitor were measured using digital multi-meter and recorded in the Table 7. The oscilloscope was set up to measure the voltage drops across the resistor and capacitor simultaneously. Channel 1 is used to measure the voltage across the resistor, and Channel 2 to measure the voltage across the

This may because of some factors such as unsuitable probe was used in the experiment.
Nevertheless, Kirchhoff’s Voltage Law (KVL) was verified using DC and AC circuit (Figure 3 and 4) using both devices.

TASK 3 ω=2πf=2π(4000Hz)=8000π X_C=1/ωCj=-1/((8000π)(10x〖10〗^(-9))) j =3978.87jΩ
Z=√(R^2+〖X_C〗^2 )=√(〖1000〗^2+〖(3978.87)〗^2 ) =4102.61Ω
V_rms=4.24V
I_rms=V_rms/Z=4.24V/4102.61Ω =1.0335mA
V_R=(1.0335mA)(1000Ω)=1.03V
V_C=(1.0335mA)(3978.87Ω)=4.11V
When the capacitor was replaced with inductor, the value of inductor is equivalent to XC = XL: X_C=X_L