Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Taking measurements on a smooth floor 1

Status
Not open for further replies.
WARose

WARose

Structural
Mar 17, 2011
5,594

I've got a smooth (reinforced) concrete floor I need to take vibration measurements on. My experience using some type of probe is: it's not particularly accurate. I almost always drive some type of (short) masonry/surveying nail and then use a magnet attachment to take measurements. However, the client I am working with has apprehension about driving permanent nails. Can you suggest a alternative to a permanent attachment where I could get reliable readings? Thanks.
 
Replies continue below

Recommended for you

Sort by date Sort by votes
Depends on the mass of the accelerometer, but beeswax, hot glue, cyano acrylate, modelling clay are all tried and true. At a pinch stick masking tape or duct tape to the surface and then any of the previous solutions. or use a laser vibrometer.

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376
 
Upvote 0 Downvote
If it's an accel then bolt it to a small aluminum plate and glue the plate to the floor. I'd be concerned about any stud or screw in the concrete unless it is epoxied in. The made-for concrete screws and inserts I've used don't seem to grab very well.
 
Upvote 0 Downvote
Thanks for the suggestion Greg. With the modeling clay, are you suggesting sticking it to the floor and jabbing the probe in (maybe with some duct tape to hold the probe steady)? Just wanted to be sure I follow you here.
 
Upvote 0 Downvote
No, can you unscrew the probe from the accelerometer and use the flat base of the accelerometer (or turn it upside down and use the top)? If it wobbles it'll be no good.

Perhaps you are using something like this in which case neither suggestion is helpful!


Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376
 
Upvote 0 Downvote
Ah, I think I understand you now. Thanks.

 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

I
  • Question
Fan vibration and its effect on fasteners
Replies
5
Views
3K
dgeesaman
dgeesaman
kingnero
  • Locked
  • Question
Welding on top of rail, to avoid noise in curves
Replies
4
Views
5K
kingnero
kingnero
RM12
  • Locked
  • Question
Balancing a Vertical Pump Motor on a rubber base 6
Replies
19
Views
928
Tmoose
Tmoose
RM12
  • Locked
  • Question
Cycling Vibration on 1800 RPM Vertical Motor 1
Replies
12
Views
853
RM12
RM12
jjr1111
  • Locked
  • Question
high vibrations in pd pump, gearbox, motor combo on movable base 1
2
Replies
27
Views
2K
electricpete
electricpete

Part and Inventory Search

Sponsor

Back
Top Bottom