An Interactive Gated Ring Oscillator Tutorial – part #2

This is the second part of tutorial walking through the creation of an interactive animated Excel model of a gated ring oscillator in MS Excel 2003. This section is mainly concerned with the generation of the spin buttons, the macros assigned to them and the insertion of the worksheet functions modeling the NAND gate, the inverters and the delayless multiplexer. Towards the end of theContinue Reading

An Interactive Gated Ring Oscillator Tutorial – part #1

This is the first part of tutorial explaining how to make an interactive animated Excel model of a gated ring oscillator in MS Excel 2003. Like most of the models on this site this model will run fine in newer Excel versions too. A delay based model was used for the logic gates which was previously discussed. An Interactive Ring OscillatorContinue Reading

Two Lissajous Models – a video preview

This is a video preview for two older models included in this blog, a static model and a dynamic model. [sociallocker][/sociallocker] [sociallocker][/sociallocker]Continue Reading

A Basic Fourier Transform Calculator in Excel – video preview

This is a video preview of the Fourier transform model presented on this blog before. A tutorial explaining the creation of such a model was posted here too. [sociallocker][/sociallocker]Continue Reading

Spectral Analysis – a Fourier transform tutorial – part #1

This is a basic tutorial about implementation of a standard Fourier transform model in Excel. It is not an introduction to Fourier analysis. You could choose to familiarize yourself with the subject before proceeding with this tutorial. Solving a few Fourier transform excersises would be of help too. Essentially, this part shows you how to adapt the general Fourier formula for a continuous realContinue Reading

Tutorial – a Static Lissajous Emulator

Hi there, this is a tutorial explaining the construction of a very basic Lissajous emulator in Excel. It’s supposed to be very easy to understand at the high school level. Good luck, George [sociallocker][/sociallocker] A Lissajous emulator in Excel by George Lungu   Introduction: Jules A. Lissajous was a French mathematician from the 19th century – He wanted to visualizeContinue Reading

Dynamic Lissajous Emulator

This is a dynamic Lissajous emulator in the sense that the waveform is obtained by combining 2 time varying sinusoidal waves with different frequencies. [sociallocker][/sociallocker]Continue Reading

Static Lissajous Emulators (2D and 3D)

This is a static Lissajous emulator in the sense that the waveform is obtained by combining 2 static sinusoidal waves with different frequencies. As a parenthesis, I will be preparing a dynamic version which will look just like the wave shape seen on a real oscilloscope. The file presented here has two different worksheets, the first one contains a classic 2DContinue Reading

Fourier Transform

This is an Excel workbook calculating the Fourier transform of a signal. [sociallocker][/sociallocker]Continue Reading