July 17, 2008
Vibration Tip
We sometimes get to to worried about the tolerances of our Accelerometers, we have found that the 2 main things to look at when choosing Accelerometers is sensitivity & mounting.
We almost exclusively use Shear type, as it has the best all round performance in a wide range of conditions, and they are best suited to high temp areas where thermal transients can affect data collection.
What is most important is to ensure you use the same Accelerometers for all your routine monitoring as this allows for repeatability in data collection.
That way even if your Accelerometer is at the limits of it’s tolerance, that difference will be the same each time.
Accelerometers are robust and rugged, and we still have some working perfectly well after more than 6 years in the field, the cables on the other hand, are more prone to damage and failure, so we now keep spares on hand just in case.
In the end it’s all about constant repeatable data, so try and have as many constants in your set up and equipment as possible.
Reader tip provided by Matt Gorman
Condition Monitoring Tech
OneSteel
Newcastle New South Wales
Australia
Thanks Matt - your stainless steel, diamond plate, Reliabilityweb.com coffee mug is on the way!
