Vibration Analysis
Two Minute Tips
Demands on Vibration Sensors
Understand how MEMS-based accelerometers are helping meet the demands on vibration sensors into today’s Condition based Monitoring Applications. This 2 minute tip will highlight key features and benefits of MEMS-based accelerometers in comparison to piezosensors commonly used for CbM...
- Thomas Brand
- Analog Devices, Inc
Five Minute Facts
Machine Health Basics For The OEM Design Engineer
Analyzing machine vibration as a means of monitoring healthy operation and diagnosis of emerging problems is a relatively mature specialization, long practiced on turbines and motor-pump trains. Condition Monitoring for the factory today is generally implemented by a skilled practitioner equipped with a handheld data-logger, collecting and processing signals from a tethered vibration sensor during a periodically scheduled, route-based maintenance program.
- Ed Spence
- The Machine Instrumentation Group
10 Minute Talk
Averaging Overlap Percentage
In an FFT analyzer, overlap averaging is used to reduce noise in the vibration spectrum and speed up data collection process. This video discusses signal processing, averaging and the Fast Fourier Transform in the vibration data collector.
- Jason Tranter
- Mobius Institute
Two Minute Tips
Detecting and Diagnosing Imbalance in a System
Next-generation sensors based on MEMS technology, combined with advanced algorithms for diagnostic and prognostic applications, expand opportunities to measure a variety of machines and improve the ability to effectively monitor equipment, improve uptime, enhance process quality, and increase throughput. This 2 minute tip reviews imbalance faults and their characteristics to provide insights into some of the key system requirements that must be considered when developing a condition-based monitoring solution.
- Pete Sopcik
- Analog Devices, Inc
10 Minute Talk
Low Speed Bearing Fault Detection
The definition of Low and Ultra low speed does not have a common description. Today we will define low and ultra low speed, and how to detect bearing faults with this speed..
- Tim Sundstrom
- SPM Instrument
Two Minute Tips
Ways to Handle RPM with Wireless Sensors
The future is wireless, the vibration sensor will be wireless. When this happens in the future what to do with RPM? In this quick tip we will discover the how to measure the speed of the system using wireless technology..
- Stefan Furness
- SPM Instrument AB
10 Minute Talk
Filters and the FFT Analyzer
The FFT spectrum analyzer or digital data collector performs signal processing including filtering vibration signals. This short video gives an overview of low pass, high pass, band pass filters used in vibration analysis data collectors.
- Jason Tranter
- Mobius Institute
10 Minute Talk
Resolution Limitations
Understanding lines of resolution in the FFT vibration spectrum. Signal processing in the FFT spectrum analyzer or vibration data collector, setting the number of lines of resolution, increase data collection time.
- Jason Tranter
- Mobius Institute
Case Studies and Stories
Rotor Bar Fault Maintenance Issue: Vibration Sensor Alert
A 398 KW MV motor that runs a blower fan in a cement plant was showing strange behavior. The vibration equipment indicated vibration amplitudes that became chronic with the passage of time. The maintenance team, not knowing what the issue was, ran the motor until the bearings had to be replaced...
- Mark Koch
- ALL-TEST Pro, LLC
