Two Minute Tips
Current Unbalance in AC Electric Motors
Is there a standard for current unbalance in AC motors...
- Howard Penrose
- MotorDoc LLC
Two Minute Tips
Voltage Variation in AC Electric Motors
I’ve seen different variations of voltage testing on AC induction motors; however, the motor only really cares about the phase-to-phase voltage...
- Howard Penrose
- MotorDoc LLC
Five Minute Facts
Do Environmental Test Conditions Affect IR Test Results?
The answer is yes, they do affect the test results. Thermal imaging cameras and spot radiometers detect the thermal radiation...
- Jason Tranter
- Mobius Institute
Five Minute Facts
Do IR Cameras Measure Temperature?
Thermal imaging cameras and spot radiometers detect the thermal radiation emitted by a surface, so they don’t actually measure temperature...
- Jason Tranter
- Mobius Institute
Five Minute Facts
What is Emissivity?
Emissivity is defined as the ratio of the energy radiated from a material’s surface to that radiated from a black body (a perfect emitter of infrared radiation) at the same temperature and wavelength and under the same viewing conditions...
- Jason Tranter
- Mobius Institute
Case Studies and Stories
Hydra Main Propulsion Gearbox
Once upon a time, there was a ship called the Hydra. They were suspicious that the gears or bearings in the main gearbox were failing and asked a vibration analyst to perform a test. The analyst turned to me for help...
- Jason Tranter
- Mobius Institute
Case Studies and Stories
Ultra-Long Pre-Warning Time on Low-Speed Drying Drum with HD Technology
The application in this case is a drying drum. The drums are heated inside and their purpose is to mix ingredients together to make grains, and to cool or dry existing grains.
Two Minute Tips
Condition Monitoring Expert Tip #10
I use a laser alignment system, so I am performing precision alignment, right...
- Paige Haddy
- MI TEST
