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convert db to watt/cm^2
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Dear convert-me.com forum visitors,
Our forum has been available for many years. In September 2014 we decided to switch it to read-only mode. Month after month we saw less posts with questions and answers from real people and more spam posts. We were spending more and more resources cleaning the spam until there were less them 1 legitimate message per 100 spam posts. Then we decided it's time to stop.
All the posts in the forum will be available and searchable. We understand there are a lot of useful information and we aren't going to remove anything. As for the new questions, you can always ask them on convert-me.com FaceBook page
Thank you for being with us and sorry for any inconveniences this could caused.
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Re: convert db to watt/cm^2
by Knight » Tue Dec 14, 2004 9:09 pm
Remember first that db is a measurement of the differential in power, where watt/cm² is a measurement of power.y wrote:how do i convert db to watt/cm^2?
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:
db = 10Log(10^-6/10^-16)=100 db
- Knight
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2 posts
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