{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# ClassNotes6 - Physics 434 Module 4 Acoustic excitation of a...

This preview shows pages 1–7. Sign up to view the full content.

Physics 434 Module 4 – Thanks to Prof. Toby Burnett for writeups & labs 1 Physics 434 Module 4 Acoustic excitation of a physical system: time domain

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Physics 434 Module 4 - T. Burnett 2 Frequency domain Last week you measured the frequency domain response to the system where, ϖ =2 π f, and G( ϖ ) is the (complex) response. (Why complex?). H in ( ϖ ) G( ϖ ) H out ( ϖ ) ) ( ) ( ) ( ϖ ϖ ϖ in out H G H =
Example Physics 434 Module 4 - T. Burnett 3 What is the frequency composition of these signals?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Today: Frequencies in a pulse Physics 434 Module 4 - T. Burnett 4 ϖ ϖ ϖ ) sin( 2 a dt e a a t i - = Note: exactly the same as a single-slit diffraction pattern
Physics 434 Module 4 - T. Burnett 5 More generally dt t h e H d H e t h t i t i ) ( ) ( inverse and the ) ( ) ( 2 1 = = - ϖ ϖ π ϖ ϖ ϖ Any time-varying signal is composed of a spectrum of frequencies: Where H( ϖ ) is the Fourier transform, or frequency domain representation of the signal

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Physics 434 Module 4 - T. Burnett 6 The response to a time-varying signal: [ ] dt t h e G d G e t h t t h d t d t h e G e t h dt
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern