raar and IRstuff,
Thanks so much for the replies, the additional reading, and the definitions. They were of immense help.
Math below to help any future thread searches on how the numbers were achieved:
Log info:
https://www.mathsisfun.com/algebra/logarithms.html
But Sometimes There Is...
Hello. I was wondering if Eng-Tips could help me. I'll confess--I seem to be having a "herp-a-derp" moment. I'm reading a report and I just don't understand how the people converted from VdB re 1 micro inch per second to millimetre per second RMS. I am sure this is a laughable failure on my...