Five Minute Facts
When Do You Need ODS?
The study of a machine's motion is called Operational Deflection Shape (ODS). This study should be done when the machine is in a steady-state or normal operation. Find out the different types and why you would use ODS...
- Dennis Swanepoel
- WearCheck
Visual Inspection of Couplings and Machinery Components
Visual inspections are very important in maintenance facilities, meaning inspection of equipment and structures using any or all human senses such as vision, hearing, touch and smell. This 5 minute fact will show you if visual inspections are really worth it ...
- Stan Riddle
- Acoem USA
The Benefit of Time Signal vs FFT for Slow-Speed Bearing Testing
Slow-speed bearings under 300 RPM take a long time to accumulate data when using vibration analysis. Ultrasound can be used as the front-line tool to determine quickly what is occurring...
- Drew Walts
- IRISS
Keep Your Hydraulic Oil Clean and Dry to Ensure Reliability
One of the best ways to ensure smooth-running hydraulic systems is to use the right hydraulic oil and keep it clean and dry. Hydraulic systems have become more sophisticated in recent years, as speed and pressure have …
- Scott Leipprandt
- Lubrication Engineers
Common Sources of High-Resistance Connections
Electric motor testing is an excellent tool for identifying resistance unbalance. This instructional presentation will provide the most common locations for electrical connection anomalies...
- Don Donofrio
- The Snell Group
The Deception Caused by Convection
Convection can have a big impact on what an infrared thermographer sees with a thermal imager, whether outdoors or indoors. This instructional presentation will show a specific case study on the power of convection...
- Roy Huff
- The Snell Group
Fault Localization Using Electrical Signature Analysis
When conducting Electrical Signature Analysis on a motor circuit you may find numerous spectral peaks in the FFT. This instructional presentation provides a means to localize the origin of the voltage and current distortions represented in the spectral data...
- Don Donofrio
- The Snell Group
Know Your Emissivity
Emissivity is a measure of a material’s ability to emit infrared energy. The emissivity of a surface is the ratio of the energy radiated from it to that from a blackbody at the same temperature and wavelength and under the same viewing conditions...
- Martin Robinson
- IRISS Inc.
Importance of Checking Amp Probes Prior to Data Collection
In this presentation we will discuss the many different options available when checking amp probes, which include current monitoring, balance loading, FFT…
- Don Donofrio
- The Snell Group
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