free 8051 Microcontroller Projects AVR PIC Microcontroller Projects Tutorials Ebooks Libraries, interfacing tutorials, lcd tutorial, stepper motor, dc motor 8051 assembly language programming electronics and communication ECE CSE pdf ebooks library BE final year project ideas Embedded systems
 
8051 microcontroller 8051 microcontroller
Forums

8051 Microcontroller Projects AVR PIC Projects Tutorials Ebooks Libraries codes :: Forums :: Discuss and Learn :: General help Guidance and Discussion
 
<< Previous thread | Next thread >>
Signal analysis with Laplace project
Moderators: Ajay, Junied , abbas1707, Arun Kumar V, pdi33, Shailesh NAYAK, ۞ TPS ۞, shyam, sashijoseph
Author Post
pajanet
Fri Nov 30 2007, 11:38AM
 User Offline
Registered Member #4940
Joined: Fri Nov 30 2007, 11:32AM

Posts: 4
Thanked 0 times in 0 posts
Hi, I'm starting a project where I need to collect a signal from a pressure transducer and analyze it using the laplace transform where can I find useful info for it?


Pajanet
Back to top


Ajay
Fri Nov 30 2007, 12:28PM
Rickey's World Admin

 User Offline

Registered Member #1
Joined: Fri Feb 24 2006, 04:56AM

Posts: 3752
Thanked 695 times in 654 posts
hmm.. laplace transform... what kind of analysis you want to do with the signal?
www.rickeyworld.info
If you feel satisfied with the user's forum reply please click on the thank button.

Obey forum rules!
Respect others!
Back to top


pajanet
Fri Nov 30 2007, 12:53PM
 User Offline
Registered Member #4940
Joined: Fri Nov 30 2007, 11:32AM

Posts: 4
Thanked 0 times in 0 posts
I'm trying to make a frequency response analysis, with calculations of damping ratio and natural frequency and then showing this results on a LCD
Pajanet
Back to top


Ajay
Fri Nov 30 2007, 01:01PM
Rickey's World Admin

 User Offline

Registered Member #1
Joined: Fri Feb 24 2006, 04:56AM

Posts: 3752
Thanked 695 times in 654 posts
I never seen anyone using laplace transform for this purpose.. why don't you try Fast Fourier Transform?
www.rickeyworld.info
If you feel satisfied with the user's forum reply please click on the thank button.

Obey forum rules!
Respect others!
Back to top


pajanet
Sun Dec 02 2007, 02:50PM
 User Offline
Registered Member #4940
Joined: Fri Nov 30 2007, 11:32AM

Posts: 4
Thanked 0 times in 0 posts
Exactly what I want is this:
I have a pressure transducer with a catheter (wheatstone bridge), attached to a bottle, and at the top of the bottle I have a balloon.
If you pinch the balloon the sudden drop of pressure will generate a step signal, the catheter tranducer behavior is exactly like a RLC (second order) system. So I want to analyze this signal and then obtain the parameters that I need
Pajanet
Back to top


Ajay
Mon Dec 03 2007, 03:31AM
Rickey's World Admin

 User Offline

Registered Member #1
Joined: Fri Feb 24 2006, 04:56AM

Posts: 3752
Thanked 695 times in 654 posts
http://www.8051projects.net/downloads37.html
here is an FFT program for 8051

and here is FFT program for PIC microcontroller
http://www.piclist.com/techref/microchip/fft/picspect.htm

you can do spectrum analysis as you want.
www.rickeyworld.info
If you feel satisfied with the user's forum reply please click on the thank button.

Obey forum rules!
Respect others!
Back to top



This post has been thanked 1 time
 pajanet 
pajanet
Mon Dec 03 2007, 06:46PM
 User Offline
Registered Member #4940
Joined: Fri Nov 30 2007, 11:32AM

Posts: 4
Thanked 0 times in 0 posts
Thanks for the reply, I'll look into it.
Pajanet
Back to top


 

Jump:     Back to top
Lo-Fi Version
Syndicate this thread: rss 0.92 Syndicate this thread: rss 2.0 Syndicate this thread: RDF
Powered by e107 Forum System
Creative Commons License
This work is licensed under a
Creative Commons Attribution-Noncommercial 2.5 India License.

Rickey's World Disclaimer

8051 Microcontroller Projects 8051 AVR tutorials PIC microcontroller, 8051 assembly language programming electronics and communication ECE CSE pdf ebooks library BE final year project ideas Embedded systems