Here are my thoughts on the sixth week's material, etc.

• This week I introduced Fourier Series and Numerical Calculation (DFT) of Fourier Series.
• Monday and the first part of Wednesday I introduced the DFT.  (Second half of Wed was Quiz 5)
• Friday was devoted to a sequence of problems (Two guided Problems 1 & 2, Freq4P07) and the three-part set on filtering the lab data from the pressure sensors.
• Lab this week consists of getting data for some "standard signals" i.e. sine, triangular and square.  BUT, I have them take 1, 2 and 2.5 cycles worth of data and DFT that.  Interesting results with non-integral number of cycles.  Here's the note.
• The labs here let students get acquainted with an oscilloscope.  They are probably too short.
• In-Class exercises
• The sequence above works really well.  The notes for this segment have a good calculator/simulator that I built in Flash.
• Class Notes - Good
• Some things to think about.
• Not much here
• 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.
• AC Tachometers
• Pressusre Sensors