Transcript PHYS3330: Lab Report

PHYS3330: Lab Report
* The purpose of the record of an experiment is to explain clearly and concisely
what you are trying to do, what you actually did, what you actually observed,
and what you concluded from your observations.
*You lab report should be understood by someone who is not taking this courses.
*Explain variables you introduce. Use the consistent symbols and variables
throughout your lab reports including figures, tables and plots.
*Your lab report must contain the followings:
- Title
- Objective
- Idea/Apparatus/Theory
- Procedure
- Result and Data analysis
- Conclusion
Lab Reports: Details of Contents and Examples
Title: Title of the lab
name, Partner name, section etc
Objective/Goal: One or two Sentences of Basic intent of the experiment
Ideas/Theory/Apparatus: Describe the main ideas or equations that will be
used in the lab. You can include the circuit diagram or schematics here.
Ideas/Apparatus: Describe the main ideas or key equations that will be
used in the lab. You can include the circuit diagram or schematics here.
Procedure: Summary of process you followed while carrying out the
experiment. no more than ½-1 pages.
Voltage divider
Wheatstone Bridge
Copper wire resistivity measurement
Result and Data Analysis:
-The complete data set : Uses of table is strongly recommended
- Calculation of results: Detailed numerical sample of each type with unit
and conversion.
- Relevant Plots (including axis label, unit, title)
- If you have not reached the desirable results, explain how you
troubleshoot and the result.
Voltage divider
Result and Data Analysis
Wheatstone Bridge
when the bridged is “balanced” (ΔV =0)
When Rx changed by 5% by adding 50 Ω, ΔRx = 50Ω,
ΔVmeausred = 0.184V
ΔV_calc = 0.190 V.
There was 3% discrepancy.
****Add PLOTS in this section if it is needed
-Check axes labels, units and title.
Fig.4 Bode plot for high Pass filter
Result and Data Analysis
Copper resistivity measurement
Thus resistivity from DMM (ρDMM) and 4-terminal measurements (ρ4tc) is
ρDMM = 1.5 μΩ cm and ρ4tc = 1.72 μΩ cm
Each values has corresponding error coming from the reading of voltmeter. They are ......
These values is compared to the known value from the pre-lab 1.69μΩ cm has ***% of error.
Conclusion:
-Summarize your results and compare them to accepted or calculated
values.
(if you did this in analysis section, say again in brief form!)
-If you have suspicions and/or large discrepancy in your result,
discuss here with reasonable quantitative estimates
-You lose points by simply unsubstantiated or incorrect guess
-Stick to scientific conclusions! Not opinions, no personal comments!
k
Ω
k
Ω
(Bad example)
... This lab was fun and I learned a lot. It is really sad that we did not get the right result in
the end.