Week
3 - Signals
Here are my thoughts on the third week's material, etc.
-
This week's material is
background material on signals that they need generally to know.
-
Sinusoidal signal parameters
are the focus - Amplitude, frequency (including angular frequency - "omega")
and phase.
-
But, the labs get the
students to think about limitations that are caused by instrument sampling.
-
The concept of sampling
is something that I have just begun to emphasize (Spring 2008). Since
these students are generally CEs, MEs, ChemEs, etc., they take a lot of
measurments in their lab courses, and, now, much of that data isw stuffed
directly into files. They need a little material on sampling and
the Nyquist limit. They probably don't need a whole week, and I have
to figure out how to adjust the schedule to accomodate a very short segment
here.
-
Labs are devoted to simply
taking time response data using pre-written LabVIEW programs.
-
The labs here let students
get acquainted with an oscilloscope. They are probably too short.
And, in this year's redesign of the course I am going to change the labs
and move the tachometer experiment to this point. See below.
Anyhow, those two labs go together and make a good pair. That leaves
some space for more
-
In-Class exercises
-
There are a number of
good in-class exercises.
-
Class Notes - Good
-
Some things to think about.
-
Several years ago there
was more material on scopes here. In the notebook I have included
an old lab that I will use here next time.
-
Sensors encountered to
this point in the course.
-
Thermocouples
-
LM35s - giving two examples
of sensors with voltage outputs
-
Thermistor - giving an
example of a sensor with a resistance change.
-
Thoughts about where this
is at this point.
-
Need to develop - or resurrect
- material on scopes. Somehow, that material gradually worked its
way out of this part of the course, and the students could use it.