An Example Lab Report

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An Example Lab Report
What follows, starting on the next page, is an example of the sort of report that is
expected for my ET courses such as Circuits 1 and 2, Linear Electronics, Operational
Amplifiers, and Science of Sound. Read the example after reading the report guidelines
posted on my web site.
The experiment in question is completely fabricated, but the report will illustrate both the
expected form and content. The mock experiment involves measuring the speed of sound
in various materials and whether or not this speed is affected by temperature. In this
exercise, the experimenter has affixed small transducers to each end of a solid bar of the
material under investigation (rather like a small loudspeaker and microphone). A pulse is
then applied to one end and a timer is used to determine how long it takes for the wave to
reach the other end. Knowing the length of the bar, the velocity may be computed. The
bars are then heated to different temperatures and the process repeated to see if the
velocity changes. Appropriate tables and graphs are presented.
Note that the report uses a standard 12 point Times Roman font with 1.5 line spacing.
There is no reason to “get fancy” with the appearance of the report. In fact, this will only
serve as a distraction. Sufficient space is left for the instructor to insert comments. The
length of any specific report can vary greatly depending on the amount of data recorded,
the depth of analysis, added graphs, and the like.
As is sometimes the case, this mock experiment didn’t work perfectly.
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