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Purposeful Distortion or It is Cool to be Square

The frequency Spectrum of a Sine Wave. (Click on the picture to expand it.)

Distortion is something that is unwanted in music reproduction systems. Those systems used to be advertised as high fidelity and claimed to reliably reproduce the sound files sent to them from phonograph records, audio tapes, etc. I have not heard

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Piddling with the PID controller

A complete PID controller.

In this post I complete all the functions of a PID controller by adding the D to the PI controller in the previous post. If you have not followed all of the posts related to modeling the car and the cruise control, you will be lost at this point and

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Putting the memory from our right foot into the controller.

Adding a Memory Component to our Cruse Control

In the post “Controlling the speed of our Rocket car – Proportional Control“, we had a very hard time ever getting the car up to speed. At the very end of the post I explained why. With proportional only control if the speed of the car

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How I create all these graphs…. part 3 of 3

The current through the Parallel LC circuit for several resistance loads.

I posted the third of the videos tonight on how I create the graphs I use on this web site. Part 1 is the actual graphing software. Part 2 showed some additional Veusz features and how CSV files work and some “gotcha’s” about

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How I create all these graphs…. part 2 of 3

The Current Phase shift Plot for various size resistance loads.

I posted the second of videos tonight on how I create the graphs I use on this web site. Part 1 is the actual graphing software and was posted last night . Part 2 shows some additional Veusz features and how CSV files work

Continue reading How I create all these graphs…. part 2 of 3

How I create all these graphs…. part 1 of 3

Voltage across the Capacitor and Inductor in the Series circuit.

I posted a video tonight on how I create the graphs I use on this web site. Part 1 is the actual graphing software. Part 2 is “in the can” and will be posted on youtube soon and shows the second part of the

Continue reading How I create all these graphs…. part 1 of 3

Episode 60 – The Cartesian Coordinate System (Graphing)

In this episode I talk about a way of mapping out points on a grid of squares. This mapping method is called the Cartesian coordinate system and it a very common method to create graphs.. Way back there in Episode 1, I talked about taking measurements and we used a ruler to take those measurements.

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