Bode & Nyquist diagrams from expirmental results

  • Thread starter gimini75
  • Start date
  • #1
52
0
Hi

I have a task to draw a bode and nyquist diagrams from an expirmential results, I have the phase delay and the votage gain data, can you help me to darw bode and nyquist diagrams?


Thanks
 

Answers and Replies

  • #2
761
13
Hi

I have a task to draw a bode and nyquist diagrams from an expirmential results, I have the phase delay and the votage gain data, can you help me to darw bode and nyquist diagrams?


Thanks

Just use matlab.
 
  • #3
52
0
Thanks for your reply, but I want to draw it without using MATLAB.
 
  • #4
berkeman
Mentor
61,368
11,890
Hi

I have a task to draw a bode and nyquist diagrams from an expirmential results, I have the phase delay and the votage gain data, can you help me to darw bode and nyquist diagrams?


Thanks

For the Bode plot, start with log-log paper, label the horizontal frequency axis with the appropriate frequency range, and label the vertical axis with both gain and phase shift markers. Theh just plot the data points that you have and connect the dots in a smooth fashion.

For the Nyquist plot, it's a little more involved -- does your system include feedback, or is it open-loop?

http://en.wikipedia.org/wiki/Nyquist_plot

.
 
  • #5
52
0
Thanks for your reply, the system which I want to draw a Nyquist does not have a feedback.
 
  • #6
761
13
Can you give us the transfer function?
 
  • #7
52
0
Thanks for your reply, the transfer function is:
1 / (0.0022s + 1)
 

Related Threads on Bode & Nyquist diagrams from expirmental results

  • Last Post
Replies
2
Views
5K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
14
Views
6K
Replies
1
Views
682
  • Last Post
Replies
2
Views
985
  • Last Post
Replies
1
Views
9K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
4
Views
8K
Replies
2
Views
2K
Top