An illustration of harmonic wave
Part C

ECE 1100                        han q le - copyrighted
Use solely for UH students registered for UH ECE 1100 during courses - DO NOT distributed (copyrighted materials)

0. Utility package (execute this first) (select, shift+enter)

Attention: Check box below before starting

Part A. Time periodic phenomena (see Part A)

Part B. Spatially periodic structure (see Part B)

Part C. Time-Space periodic phenomena

C.1 Introduction

C.1.1 Discussion

ECE 1100 Lecture 9 -Harmonic wave introduction_2.gif

C.1.2 Illustration: periodic in time and space

Code

Demo C.1.2

C.2 Wave traveling and wave velocity

C.2.1 Illustration

ECE 1100 Lecture 9 -Harmonic wave introduction_4.gif

ECE 1100 Lecture 9 -Harmonic wave introduction_5.gif

C.2.2 Discussion

ECE 1100 Lecture 9 -Harmonic wave introduction_6.gif

C.2.2.1 Soundwave demo

Source code

Demo C.2.2.1

Discussion

Does sound wave travel?

ECE 1100 Lecture 9 -Harmonic wave introduction_8.gif

C.2.3 Illustration

Source code

Demo C.2.3

Use sliders to change value; click + box to see value
Set spatial frequency to extreme left and run time to see time-periodic only
Then set spatial frequency to the middle to see both space and time periodic
Count how many wavelength (space period) the wave travels for each time period

C.2.4 Soundwave discussion

ECE 1100 Lecture 9 -Harmonic wave introduction_10.gif

Source code

Demo C.2.4

C.3 Soundwave HW project

ECE 1100 Lecture 9 -Harmonic wave introduction_12.gif

Spikey Created with Wolfram Mathematica 9.0