Five Minute Facts
Rotor Casting Voids
Casting voids do exist, however it wasn't until the late 1980's when we started to notice these with new technology...
- Howard Penrose
- MotorDoc LLC
Articles
In-Rush Start-Up Current Test Prevents Catastrophic Pump Failure
The nameplate information for the 2B circulating water pump showed 4,000 V, 3,000 HP, 409 FLA, and 355 rpm. It had 240 slots and 196 bars. While this is not normal information to include on the nameplate, especially on older motors, it is good information for the specialist to have...
Articles
How to Measure Tribology Using a 100 kHz Sampling Rate Vibration Analyzer
We can use vibration analysis to see what goes on in the interface between moving surfaces and, therefore, catch potential problems there...
- Ray Garvey
- Ametek
Two Minute Tips
Why Do I Need to Use Phase Analysis?
The vibration spectrum can provide a clear indication of certain fault conditions...
- Jason Tranter
- Mobius Institute
Case Studies and Stories
Boliden Garpenberg Mine
In January 2011, New Boliden decided on a major expansion of operations at the Garpenberg mine in central Sweden, aiming to successively increase production from 1.4 million to 2.5 million tons annually...
Two Minute Tips
10 Minute Talk
Keeping Out Environmental Contaminants
In dusty or wet vibration monitoring applications, sealing of the sensor itself as well as sealing of the cable to the sensor is of prime importance in order to avoid contamination of the signal. But how sealed is it? Is there a way to quantify “sealed”?
- Meredith Christman
- PCB Piezotronics
10 Minute Talk
Understand It. Improve It!
Are you getting the most from your vibration monitoring program? Are you getting the return on investment you deserve?
- Alan Friedman
- Mobius Institute
Case Studies and Stories
Electric Motor Fault
In this article we are going to take a look at a fault on an electric motor and then attempt to explain why the vibration changed in the way that it did...
- Jason Tranter
- Mobius Institute
