Condition Monitoring
White Papers
A Condition Monitoring Toolbox for Gearboxes
When measuring on a gearbox with a vibration transducer, you almost always see a clear gear mesh signature in the spectrum; regardless if the gearbox is in mint condition or an older, worn gearbox, you still see the gear mesh. The mechanical explanation of this phenomenon can be found when studying the interaction of the teeth involved...
- Tim Sundstrom
- SPM Instrument
Case Studies and Stories
Continuous Condition Monitoring Pays off at a Large Power Utility
A large power utility in Hawaii was looking for more frequent condition monitoring on their Balance of Plant (BOP) generation assets. They had experienced significant equipment failures that occurred between their scheduled quarterly walkaround condition monitoring routes. They decided to trial Petasense technology on 8-10 assets...
- Ken Madsen
- Petasense
Two Minute Tips
Rotor Bar Analysis Using Electrical Signature Analysis
Broken or fractured rotor bars are found as elevated Pole Pass Frequency (PPF) sidebands of line fre- quency (LF). PPF is calculated using the synchronous speed minus the running speed times the number of poles..
- Mark Koch
- ALL-TEST Pro, LLC
Interviews
Remote Condition Monitoring
In this Interview Josiah share's his passion about using new methods to address persistent problems and many plants are unaware of the benefits that they could be reaping from such technology..
- Josiah Carter
- Advantage Reliability Services
Case Studies and Stories
Rotor Bar Fault Maintenance Issue: Vibration Sensor Alert
A 398 KW MV motor that runs a blower fan in a cement plant was showing strange behavior. The vibration equipment indicated vibration amplitudes that became chronic with the passage of time. The maintenance team not knowing what the issue was...
- Mark Koch
- ALL-TEST Pro, LLC
Interviews
Camera Sensing in Reliability Programs
Motion Amplification expert Jeff Hay discusses how camera-based sensing can fit within a reliability program and how camera sensor technology is evolving…
- Jeff Hay
- RDI Technologies
Two Minute Tips
Proper Installation of the Infrared Window
Proper installation of the infrared window is critical for the long-term use of the window and for the long-term performance of the electrical panel and equipment enclosure.
- Martin Robinson
- IRISS Inc.
Case Studies and Stories
An Efficient Maintenance Strategy for Reciprocating Compressors
A client operates two reciprocating compressors, both of which are critical to the process. This particular plant produces a semi-finished product that is needed in another plant for the production of the end product. The reciprocating compressors are periodically inspected for rider band wear every 12 weeks, and to do so a shutdown is required.
- Lucas van Ruiten
- Istec International
Five Minute Facts
Resonance & Natural Frequency
Have you ever been trying to balance a fan and its vibration doesn't go down, no matter what you do? Do you know what resonance is?
- Dr. Thierry Erbessd
- Erbessd Instruments
