Nine Minutes of Knowledge
Turbo Machinery 101
Salah Attia tells us about different types of turbines and the alarm levels that should be set to protect these critical machines…
- Salah Attia
- ALS Industrial
When Vibration from Trains Damages Buildings
In large cities in India, such as Delhi, metros cause a lot of damage to buildings. Stories have appeared on the news of people who have to repair their houses again and again…
- Ashish Arora
- Institute of Noise & Vibration
Measurement Sensors and Applications for Measuring Turbo Machinery
When measuring turbo machinery, measurement types include casing absolute vibration, shaft relative vibration, and shaft absolute vibration…
- Salah Attia
- ALS Industrial
Installing Wireless Monitoring on Overhead Cranes
Compared to most applications, online monitoring of overhead cranes is quite challenging. We need high-speed sampling for fault detection. And because this is a low-speed application…
- Kris Deckers
- I-care Group
Condition-Based Inspection Models for Electrical Equipment
Condition-based inspection models utilize condition-based monitoring technologies to inspect electrical equipment assets. One technician can do three jobs in two minutes. These methods include…
- Paul Goodbody
- IRISS
Polarization Index Profiles
A polarization index is a 10-minute timed insulation test using a megohmmeter to measure resistance to ground. If you plot or graph the results incrementally, it will give you a profile of the resistance to ground. There are five distinct patterns that we'll get...
- Don Donofrio
- The Snell Group
Tank Levels
The reliability of tank level indicators has improved significantly over the past few decades. This tip will discuss how taking advantage of differences in thermal capacitance of tank contents allows for fast and effect tank level inspections.
- Roy Huff
- The Snell Group
HD Technology Saves an Extruder Gear Pump
A gear pump was used in a plastic extruder, where the gear’s head pumps the plastic mold from the barrel into the pelletizer. The extruder was already fitted with a condition monitoring system, but in early 2016 our customer decided...
- Rick Verbij
- SPM Netherlands
HD Technology Shines in an Ultra-Low-RPM Application
The support wheel bearings in a calciner case had an ultra-low rpm: 3.4–3.9. The customer had been utilizing a traditional vibration analysis system for a number of years, but they lacked a pre-warning time and faced high risk…
- Rick Verbij
- SPM Netherlands