Two Minute Tips
MEMS Accelerometers and Yearly Calibration
A handheld portable vibration data collector typically uses a piezoelectric sensor. Normally this would require a calibration every year or two, as a piezo crystal output can drift over time. MEMS (Micro-electromechanical systems) accelerometers do not require recalibration every year which make it ideal for use in a wireless vibration sensor. Why is this?
- Alan McCall
- Sensoteq
The Todd and Noah Podcast
Current Demodulation (What type of mechanical anomalies can be found in the current spectrum) – Todd and Noah Show
What is current demodulation? Todd and Noah take a deep dive into its use and the mechanical anomalies found in the current system.
- Todd Gunderson Noah Bethel
- PdMA Corporation
Five Minute Facts
When an Electric Motor Gets Too Hot
Many factors can cause an electric motor to get hot, and it can cause a huge number of problems. Howard Penrose explains…
- Howard Penrose
- MotorDoc LLC
Five Minute Facts
Harmonics in Electric Motor Testing
Howard Penrose shows us what harmonics look like in an electric motor reading…
- Howard Penrose
- MotorDoc LLC
The Todd and Noah Podcast
Types of Motors Part 2.. Synchronous and DC with a bonus discussion on Variable Frequency Drives – Todd and Noah Show
In Part 2, Todd and Noah take the mystery out of electric motors. They give you the tell-all about synchronous and DC motors and their functions.
- Todd Gunderson Noah Bethel
- PdMA Corporation
Five Minute Facts
Safety Barrier and Intrinsically Safe Accelerometer Compatibility
What is the purpose of the safety barrier? Peter Eitnier describes what goes into a safety barrier, what it prevents, and it's maximum limits it can handle to retain safety.
- Peter Eitnier
- Wilcoxon Sensing Technologies
Articles
Systems Energy and Emissions Analysis with Electrical Signature Analysis
There are several ways to view the impact of maintenance practices using ESA and electrical measurements, the first is the use of simple overall kilowatt readings from a power analyzer or relay monitoring system; the second is the before and after readings from an ESA device that identifies kilowatt data by defect.
- Howard Penrose
- MotorDoc LLC
10 Minute Talk
What’s New in Ultrasound Inspection?
Tom Murphy presents updates on acoustic cameras, continuous monitoring systems, on-condition lubrication, and process monitoring sensors (he warns that just because a sensor measures above 20 kHz, it doesn’t make it Ultrasound)…
- Tom Murphy
- SDT
Two Minute Tips
Vibration and Alignment Problems Related to Soft Foot
Most industrial maintenance mechanics who are involved with precision shaft alignment are familiar with the phenomenon of soft foot.
- Stan Riddle
- Acoem USA
