Can I Convert My Bode Plots to Logarithmic Scale in Excel?

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SUMMARY

The discussion focuses on converting Bode plots to a logarithmic scale in Excel. Users reported challenges in applying a logarithmic scale to their plots, specifically for low-pass and high-pass filters. A solution was provided, instructing users to right-click the vertical axis, select "Format Axis," and choose the logarithmic scale option. This method can also be applied to the horizontal frequency scale for better data representation.

PREREQUISITES
  • Basic understanding of Bode plots and their significance in filter analysis.
  • Familiarity with Excel 365 or Excel 2019 for plotting and formatting graphs.
  • Knowledge of low-pass and high-pass filter characteristics.
  • Experience with Excel's chart formatting features.
NEXT STEPS
  • Learn how to format axes in Excel for different types of data visualization.
  • Explore advanced Excel charting techniques for signal processing data.
  • Research the mathematical principles behind Bode plots and their applications.
  • Investigate other software tools for plotting Bode plots, such as MATLAB or Python's Matplotlib.
USEFUL FOR

Engineers, data analysts, and students involved in signal processing or filter design who need to visualize frequency response data effectively.

k31453
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Got excel spreadsheet.
in my excel worksheet "4" i plot bode plot for low and high pass.

Our lab experiement aim was measure two set of data and identify which one is low pass and which one is highpass filter.

But as soon as I am trying to put lograitham graph it is not allow me ?

I want to know am i doing right thing or not?

This is the excel file.

https://www.dropbox.com/s/0thxwsrk3n8wl4w/lab.xlsx
 
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k31453 said:
Got excel spreadsheet.
in my excel worksheet "4" i plot bode plot for low and high pass.

Our lab experiement aim was measure two set of data and identify which one is low pass and which one is highpass filter.

But as soon as I am trying to put lograitham graph it is not allow me ?

I want to know am i doing right thing or not?

This is the excel file.

https://www.dropbox.com/s/0thxwsrk3n8wl4w/lab.xlsx

right-click your left vertical axis, and select "Format Axis". In the format dialog box, you have options to convert the vertical scale to logarithmic. You can probably do something similar with the horizontal frequency scale as well...
 

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