Sound/Vibration Measuring Equipment
Sound/Vibration Measuring Equipment
(OP)
i'm new in the field. my company has two sounds chambers in two different locations. we do a lot of testing in both rooms. apparently test results from the two chambers for the same product sample differ up to a few dB's. what equipment would be approriate to measure the sound/vibration difference between the two chambers?
thanks!
thanks!





RE: Sound/Vibration Measuring Equipment
Take a good look at the background noise it can tell you how good your test stand. 3ed shift and Saterdays are good times to checks the test stands.
Chris
"In this house, we obey the laws of thermodynamics." Homer Simpson
RE: Sound/Vibration Measuring Equipment
it's a new product in development. engineering is trying to get it below 62 dB. right now im getting borderline results at the engineering facility. and it apparently measures louder in the production facility sound chamber. if the ambient dB is lower than 40dB at both facilities, and im using the same equipments(moved from one facility to the other), the only difference in two tests performed is the chambers, where could the difference of the result come from? im lost.
RE: Sound/Vibration Measuring Equipment
If they are not identical then there is your problem.
good luck,
Fe
RE: Sound/Vibration Measuring Equipment
Also what how the test stande is isolated?
Chris
"In this house, we obey the laws of thermodynamics." Homer Simpson
RE: Sound/Vibration Measuring 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: Sound/Vibration Measuring Equipment
RE: Sound/Vibration Measuring Equipment
the chances are that he differences are due to the frequency response of the two rooms, if the difference is repeatable, so quoting single dB figures isn't much help.
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: Sound/Vibration Measuring Equipment
- Steve