Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Log distance

  1. Apr 28, 2004 #1
    Hi there, first post from me - hurrah!

    I'm currently conducting an experiment measuring sound attenuation. I've got a table for the varying distances that measurements have been taken at, and the corresponding peak voltage values taken from a CRO. I understand that I have to take the log value of the voltage over voltage at 0m - this produces the answer in a dB ratio. I am also, however, required to draw a graph of dB (20log Vmic/Vmic@0m) against log distance.

    I understand that "20log Vmic/Vmic@0m" gives me dBs - but does log distance have any bearing on the experiment? In other words.........

    20log Vmic/Vmic@0m is to dB as log distance is to ?????????

    Thank you for your time!

    Regards,

    Rich.
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?
Draft saved Draft deleted



Similar Discussions: Log distance
  1. Tires & Logs (Replies: 5)

  2. Drying timber logs (Replies: 6)

Loading...