Two Minute Tips
Automatic RPM Identification From Vibration Data
Vibration analysis requires a correct identification of the rotational speed of the machine. How the different frequencies of the spectrum are related to RPM, identifying with high accuracy the order of each frequency, is essential for the analysis process.
- TWave
- TWAVE
Accelerometer Hermeticity
At its core, hermeticity refers to a seal or closure being complete and airtight. There are different levels of hermeticity, though, depending on the quality of the seal, and the only way to measure is through a leak test, usually performed with helium.
- Peter Eitnier
- Wilcoxon Sensing Technologies
Condemning a Motor Using MCA™
Experience has shown that 20 to 40 percent of motor systems tested may have some sort of alarm condition. Just because a motor has exceeded the alarm limits in MCA Basic™ or MCA PRO™, it does not necessarily mean the motor will fail or should be stopped immediately. For over 30 years, the dedicated staff at ALL-TEST Pro have gathered data and resources to determine when a motor will most likely fail on the most common 3-phase squirrel cage motors.
- Mark Koch
- ALL-TEST Pro, LLC
The Proven Usefulness of Data In Industry
Data, and the insights mined from this data, are extremely valuable for industry. With proof of concept and results, all projects show drastic increases in yield, uptime, efficiency, etc.
- Rik van Ballaert
- I-care
Data Visualization with Dashboards
Dashboards are a great way to present data effectively. They can display an overview of your plant’s current condition monitoring status as well as historical data. A dashboard can meet specific needs, such as to display data for a particular application, e.g., a hoist, fan, machine tool, rotary calciner, conveyor, or any other critical piece of equipment. Or it can visualize process data, enabling operators to act on changes quickly.
- Göran Almqvist
- SPM Instrument AB
What’s for Dinner? A Peek into Process Diagnostics
If you’re a technician and it’s your job to take these readings with a hand-held data collector, this trend can be described with one word - boring. While there is always value in taking a reading on a rotating asset and using your 5 senses to look for issues that might not be picked up with vibration, this only extends so far for machines that rarely have issues..
- Sensoteq
- Sensoteq
Triaxial Accelerometer Considerations
Triaxial accelerometers are a useful combination of three sensing pellets, each taken from a single-axis accelerometer and oriented in a new package to cover all three Euclidean axes, that can quickly evaluate a machine’s condition. Obtaining data from just a single measurement axis can certainly clue you into developing machine faults and their severity, but monitoring all three axes, especially at both ends of the machine, gives the clearest picture of overall machine health.
- Peter Eitnier
- Wilcoxon Sensing Technologies
Condition Monitoring and the Cloud
‘The Cloud’ refers to software, services and data that are stored on the internet. However, this data is not just stored in a random location; it will be located on a group of computers operated by a service provider. Typically it will be Microsoft, Amazon, or Google, but other providers are available. These companies have vast arrays of computer servers located in Data Centres around the world, and your data will be kept in one or more of these data centres – and generally restricted to one region (for example, the US or EU) upon request.
- David Procter
- Sensoteq
Simplified Vibration Monitoring: ISO 10816-3 Guidelines
The ISO 10816-3 standard provides criteria for evaluating the vibration of machinery according to measurements taken on non-rotating parts, such as bearings, bearing pedestals, or housings. It serves as a general guideline for determining overall machine condition based on the magnitude of vibration and changes in vibration levels over time. While these aren’t always the only factors that need to be considered when identifying faults, the standard is very useful for performing basic vibration analysis.
- Elise Brannon
- Wilcoxon Sensing Technologies