Engineering Lab Report Template - file format - University of Nicosia

Data discussion
Discuss the obtained results. For example you can compare experimental and theoretical
(expected) results and provide first comments on any discrepancies (discuss possible
sources of error, including the human factor, instrument error, limitations of
theoretical/experimental models).
Graphs
Table 2. Results of part 2.
Vs (V) 2 R V (V) mesh
I (mA) 2 R
P (mW)
1.05 0.41 0.20 0.08
2.02 0.73 0.39 0.30
3.05 1.27 0.59 0.69
3.98 1.63 0.77 1.17
5.01 1.86 0.96 1.86
5.96 2.33 1.15 2.63
6.99 2.63 1.34 3.61
8.03 3.11 1.54 4.77
9.04 3.53 1.74 6.04
9.95 3.93 1.91 7.33
11.03 4.31 2.12 9.00
12.05 4.61 2.32 10.74
When graphs are needed, you MUST use MS Excel for creating them. Once they are
created, they can be copied/pasted in MS Word, as in figure 3 and figure 4. For example:
The results of table 1 are shown graphically in figure 3 where the calculated and
measured V are plotted with respect to the source voltage. It can be seen that the
R2
measured value of VR is very close to the theoretical one which renders this part of the
2
experiment quite successful.
Figure 4 depicts the results of table 2. From the graph, one can easily spot the first order
(linear) relation between the mesh current and the supply voltage, as well as the second
order dependence of the power consumption at R2 with respect to the supply voltage.
Error Analysis
In this subsection of an error analysis should be provided that compares the theoretical
(calculated) to the obtained (measured) results. The formula needed follows:
calculated − measured
% error = × 100%
(5)
caluclated
5