frequency
Articles
Large Electric Motor Reliability: What Did the Studies Really Say?
One of the most frequently quoted studies related to electric motor reliability is a 1983 Electric Power Research Institute (EPRI) project performed by General Electric...
- Howard Penrose
- MotorDoc LLC
Two Minute Tips
Performing a Demodulation of the Current Signal – Rotor Evaluation
Previously hidden in the noise platform of the current spectrum, now peaks related to belts, gears, fans and other machine train components can be easily identified and band alarmed...
- Noah Bethel
- PdMA Corporation
Two Minute Tips
What is the Rotor Influence Check (RIC)?
Six independent methods of rotor evaluation can be used from the MCEMAX technology to analyze the condition of a squirrel cage AC induction motor...
- Noah Bethel
- PdMA Corporation
Five Minute Facts
Analyzing Vibration Trends of Frequency Spectra
Overall data (trends) from frequency selective brands (FMin) (FMax). Warn and alarm check against ISO norms, Manufacturers references...
- Sven Fleischer
- Easy-Laser AB
White Papers
Selecting Vibration Sensors
Selecting the best accelerometer for a specific predictive maintenance application can be a daunting task – even for the most seasoned walk-around warrior…
- Meredith Christman
- PCB Piezotronics
Case Studies and Stories
A Hoist Application in the Mining Industry
A hoist or winder is a mission critical application found in underground mines. The hoist is used either to transport ore to the surface or personnel to or from the mine shaft. There are three types of hoists...
- Tim Sundstrom
- SPM Instrument
Articles
Vibration: A Very Broad Technology
Vibration technology has a lot of adjustability from a frequency analysis perspective. You can adjust your frequency coverage...
- Don Sanger
- IVC Technology
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...
Five Minute Facts
Secrets of Spectrum Analysis -Frequency Accuracy
The importance of accurate frequencies simply cannot be overstated...
- Scott Dow
- SPM Instrument
