Circuits Laboratory II – EE 111L
Instructor:
M. Heyrat (heyrat@seas.ucla.edu )
Office Hours:
Monday: 2:30-3:30pm, Friday 12:30-1:30 pm ENGR IV 66-144
TAs:
GAO, MIN
HOU, GUANRONG
WANG, XIAO
WU, CHEN
tomhacker821@gmail.com
guanrong.hou@gmail.com
xswang@ucla.edu
chenwu1989@g.ucla.edu
Lab Manual:
Handout for each experiment will be posted on the class website.
Required Instruments:
National Instruments MyDAQ Portable Measurement and Instrumentation Device and a laptop to run
associated software are required.
Safety Instruction:
You need to read and follow very carefully the safety instructions file posted on the class website.
Experiments:
1. Ohm’s Law and RC, RL Circuits: Due on 3rd week of quarter (April 16th -20th )
2. Steady-State Power Analysis: Due on 5th week of quarter (April 30th -May 4th )
3. LRC Resonance circuits: Due on 7th week of quarte (May 14th -18th).
4. Transfer Function Synthesis: Due on 10th week of quarter (June 4th -8th )
Demos:
On the days that you are submitting your reports, your TA will ask you to do part of the experiment
in the lab. TA will grade you based on your performance.
Quizzes:
You will be given 1quiz:
Quiz will be given on the 10th week of the quarter in the lecture room. This quiz will be based on the
experiments 1-4.
Grading:
1. Lab Reports: 50%. Lab reports will be graded out of 50. 5 points will be deducted for each day
late.
2. Demos: 30%. 7.5% for each demo. There will be no makeup for Demos.
3. Quiz 20%. There will be no makeup for quiz.
Lab Report:
For each experiment, you will submit a lab report. Your lab report is a demonstration of what you have
learned, inside and outside the laboratory. Each lab report should have the following sections:
1. Title Page (5 points)
2. Objectives (5 points)
3. Theory (5 points)
4. Procedure (5 points)
5. Data (5 points)
6. Data Analysis (10 points)
7. Error Analysis (5 points)
8. Discussion (5 points)
9. Conclusions (5 points)
Objectives:
The Objectives section should consist of a concise acknowledgment by you, of what is expected to be accomplished in the experiment.
Theory :
The Theory section should include statements and explanation of concepts, equations, and formulas which
are necessary for analyzing the experimental situation.
Procedure:
The Procedure section should specify exactly what you are going to do, which circuits you will use, and
what methods you will use for making the measurements.
Data:
All of the data you took which you include in your lab report should be presented in an organized manner in
the Data section. Include all relevant observations, measurements, and screenshots of relevant oscilloscope
data. Include only your own data.
Record actual values for all components and employ these values in your calculations. Take sufficient data
to identify trends and to note peculiarities.
Data Analysis:
The Data Analysis section is where you describe what you did the data to get the information you were
looking for. Formulas you used to analyze the data should be included here. Also include values you derived from your data in this section.
Data Analysis includes Error Analysis to verify whether or not a quantitative measure made falls within the
bounds of error and uncertainty.
% 𝐸𝑟𝑟𝑜𝑟 = |
𝑌𝑒𝑥𝑝𝑒𝑟𝑖𝑚𝑒𝑛𝑡 −𝑌𝑡ℎ𝑒𝑜𝑟𝑦
𝑌𝑡ℎ𝑒𝑜𝑟𝑦
|
Be aware of uncertainty as well. Every experimental measurement has an uncertainty. For example, when
measuring distance using a ruler, one reads a distance to the nearest 1mm. The uncertainty in those
measures is 1mm, or half that much, depending on the quality of the ruler you use.
Discussion
The Discussion section is where you state what all the data that you took really means. Did you prove
something, disprove something, or was there too much uncertainty to draw any certain conclusion? Be methodical about supporting every statement. You may also identify any shortcomings of your experiment,
and what implications those may have. Also, be sure to answer discussion questions posed within the lab
manual.
Conclusion
The Conclusion is a brief summarizing statement of what was accomplished by the experiment. Mention
what was proved, disproved, or could not be proven or disproven. Did you accomplish the objective? Use
data from Error Analysis to support your conclusion.
A template for lab-reports will be posted on the class website.