Questions and answers on how to convert things from one unit or system to another
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convert db to watt/cm^2
Tue Dec 14, 2004 1:54 am
how do i convert db to watt/cm^2?
Knight
Knight
Posts: 309
Joined: Tue Jan 13, 2004 9:43 pm
Location: Los Alamos, NM
Re: convert db to watt/cm^2
Tue Dec 14, 2004 9:09 pm
y wrote:how do i convert db to watt/cm^2?
Remember first that db is a measurement of the differential in power, where watt/cm² is a measurement of power.
That said, you can use:
-db = 10Log(So/Sr)
where Sr = 10^-16 watts/cm²
So, given an observed power of 10^-6 watt/cm² you'd have:
