Dampening
Dampening
(OP)
Hello, in a press shop I need to weigh very small parts (30-20 g) and need to read to +/- .5 g. I'm afraid the vibrations may cause incorrect readings. Is there any dampening materials or methods I can use to isolate the measuring equipment. Also how can I measure magnitude in the shop. Thanks





RE: Dampening
But why do this because:
1) I would think most good electronic scales have built-in electronic damping. The one we use has it, and it makes +/- .5 gram readings easy in the shop. It's more difficult with .05 grams.
2)Many mechanical scales have built-in damping also. My guess is that they use eddy current dampers because they're frictionless.
Good luck.
Tom
RE: Dampening
We do it by building a booth mounted on a rubber mat. The roof of the booth keeps the area clean. The rubber mat isolates the booth from the floor vibration. That may be overkill.
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Dampening
RE: Dampening
Wes C.
RE: Dampening
Regards,
-Mike
RE: Dampening
Any sort of spring scale is obviously susceptable to oscillation related inaccuracies.
However, in the "ideal" world that they taught us about in school, it would seem that a true balance would be less susceptable (I hesitate to say immune) to vibration of its base. Any forces are applied equally to both sides of the balance.
I'm sure that in the real world this doesn't hold fully true.
From a more practical perspective, would it be possible in your application to weigh 100 parts rather than 1?
RE: Dampening
good for absorbing vibrations. Do not
know if they make mats or not. I know
they make foot inserts and heel cushions
for us weekend warriors.
RE: Dampening
What about a floating system?
Can you float the scale in a small tub?
RE: Dampening
I agree. Try the simplest solution, which would be to do nothing and see if it works.
RE: Dampening
Lee