Noise measurement of equipment.
Noise measurement of equipment.
(OP)
I am working on the design of office computer equipment with a view to reduce noise level.
I think noise levels would be 30-60 dBA. Not sure of frequency levels.
I would like some advice on choosing a noise meter and what features to go for.
There are many meters on the market ranging in price from 50 to over 1000
Thanks in advance
I think noise levels would be 30-60 dBA. Not sure of frequency levels.
I would like some advice on choosing a noise meter and what features to go for.
There are many meters on the market ranging in price from 50 to over 1000
Thanks in advance





RE: Noise measurement of equipment.
You will also need a suitable environment in which to measure the noise - this probably means renting an anechoic chamber.
M
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Dr Michael F Platten
RE: Noise measurement of equipment.
- Steve
RE: Noise measurement of equipment.
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Noise measurement of equipment.
It has been decided to look at noise levels of components individually. This means measuring even smaller noise levels.
I do not need to work to a specific standard. I just need to judge if I am reducing acoustic noise level and comparing performance with other similar products.
So far testing is very subjective. I record sound levels under similar conditions. Do spectrum analysis with Acoustic software and judge if there is any improvement.
Could anyone recommend a more quantitive test method?
Thanks again
RE: Noise measurement of equipment.
On the other hand just working out what frequencies dominate and then searching for the source with the mic is a perfectly sensible approach that avoids all the maths and many puzzles.
Photos, plots etc would probbaly yield more helpful advice.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Noise measurement of equipment.
Also, a comment on the OP. Noise signature levels are typically specified as XX dB at YY distance (e.g. 60 dB at 10 meters.)
Regards,
Reidh