What is this and where can I find a replacement

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Discussion Overview

The discussion revolves around finding a replacement for a deteriorating seat for an accelerometer used in a vibration testing setup. Participants explore potential solutions and materials for repair, as well as considerations regarding the experimental setup.

Discussion Character

  • Technical explanation
  • Experimental/applied

Main Points Raised

  • One participant describes the issue with the accelerometer seat falling apart and seeks a replacement.
  • Another participant requests clarification on which part is being referred to, indicating potential confusion regarding the device components.
  • A participant suggests that the seat is likely made of a filled epoxy and recommends consumer-grade epoxy options for repair, noting the importance of cleanliness for effective bonding.
  • Concerns are raised about the weight of the cables affecting the accelerometers' stability and potentially altering the response characteristics of the experimental setup.
  • A participant shares a link to a source for replacement mounting clips, indicating they found a solution.

Areas of Agreement / Disagreement

Participants express various viewpoints on the repair methods and the implications of the current setup, but there is no consensus on the best approach or the impact of the cable weight on experimental results.

Contextual Notes

There are unresolved questions regarding the specific part in question and the potential effects of the cable weight on the experimental outcomes.

ms1171
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The square seat (?) for the accelerometer has started to fall apart and I need to find a replacement for it. If this helps, the accelerometers are placed equidistant apart from each other, and the tester hits it - the cantilever beam - with a mallet to simulate vibration.

Please refer to the imgur link for pictures of the device and seat.

http://imgur.com/a/4974H

Thanks in advance!
 
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I am not actually sure to which part you refer. Are we looking at the probe attached to the beam, or one of the boxes below it?
 
Hi Dave!

Sorry if the image was a little confusing. I've attached a link to another picture showing what I'm talking about.

http://imgur.com/KFVyk9a

The accelerometer (the grey box with a white wire coming out of it) would normally be held securely in this seat. But the seat, as you can tell, is falling apart and isn't serving its intended purpose anymore.

Thanks,
M
 
Looks like an adhesive. A filled epoxy most likely. You can try some consumer grade epoxy from the local hardware store. The 5-minute curing time stuff is somewhat flexible which may be an advantage since the beam is flexing. The 24-hour stuff is stronger but less flexible. The strongest I've found is J-B Weld which is iron filled. For this application with moving parts, cleanliness is mandatory if you want it to stay attached. Be sure there is no trace of oil or loose material on the bonding surfaces.

You could consider supporting the cables from the accelerometers. As it stands the full cable weight is trying to remove the accelerometers from their post.
 
Tom.G said:
You could consider supporting the cables from the accelerometers. As it stands the full cable weight is trying to remove the accelerometers from their post.

The accelerometers and the cables arranged as shown could be changing the response characteristics of the metal strip . The experimental results obtained could be unreliable as a consequence .
 
Found it. Thanks for all your help!

https://store.bksv.com/accelerometer-accessories/191-small-mounting-clips-set-of-100.html
 
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