frequency
Articles
Electrical Frequencies Calculation and AC Motor Faults Patterns. Part 2
In the Part 2 the practical example will be analyzed.
Let’s look the background and calculate the most common frequencies produced by motor that potentially will be required for further analysis.
- Pawel Lecinski
- CMRP
Two Minute Tips
Resonance & Natural Frequency
Have you ever tried to balance a fan and its vibration won’t go down? No matter what you do, do you know what Resonance is?
3 Tips to diagnose Resonance and 6 ways to correct it below.
- Dr. Thierry Erbessd
- Erbessd Instruments
Case Studies and Stories
Reducing Vibration of Pump Bearing Housing
AVT Reliability® has been involved in resolving a wide range of high operational vibration issues with plant and machinery and including pipework vibration. This has led AVT Reliability® to design and develop a comprehensive range of versatile vibration solutions.
- AVT Reliability
Case Studies and Stories
How to Analyse a Bearing Condition
This case study is done in association with a global rail company where VibCloud is utilised for ongoing locomotive monitoring for many years now. Case study demonstrates how to analyse vibration in order to determine bearing condition.
- Petar Spaseski
- iTnnovate
White Papers
Making It In A High Frequency World Striving for High-Frequency Industrial Accelerometers
As predictive maintenance teams in industrial facilities strive for a more complete picture of their equipment’s health, high frequency vibration measurements have become a crucial addition to identify faults such as motor and pump bearing defects and gear tooth inconsistencies in high-speed gearboxes. As a result, there is an upsurge in demand for vibration sensors with a high frequency response.
- Bob Martin
- IMI Sensors
Five Minute Facts
Proper Grounding Techniques – Avoiding Radio Frequency Interference
Interference of electrical signals, whether through radio frequencies (RF), electromagnetic forces (EMI) or other sources, has long been recognized as an issue that can plague accelerometer applications. This electrical interference can manifest as increased noise, signal interruption, or erroneous data altogether, eroding trust in the measurement system and complicating machine fault analysis.
- Peter Eitnier
- Wilcoxon Sensing Technologies
White Papers
Why MEMS Accelerometers Are Becoming the Designer’s Best Choice for CbM Applications
A small number of semiconductor manufacturers have overcome the noise, bandwidth and g-Range shortcomings commonly associated with MEMS sensors used in Condition-based Monitoring (CbM) by producing several medium and high-performance MEMS vibration sensors with the latter being comparable to piezo accelerometers.
- Chris Murphy
- Analog Devices, Inc
Two Minute Tips
Maximum Cable Length for Vibration Sensors
A vibration sensor produces an AC voltage dependent on the vibration signal being measured. As such, it’s subject to all the limits of AC signals. Long cable runs are likely to introduce enough capacitance into the sensor circuit to cause distortion, which makes being able to calculate cable length limits very important..
- Elise Brannon
- Wilcoxon Sensing Technologies
Five Minute Facts
MEMS Vibration Sensing: Velocity to Acceleration
MEMS accelerometers are just now coming of age as vibration sensors in modern condition monitoring (CM) systems. Recent expansion of capability in measurement range, bandwidth, and resolution is enabling new concepts and system architectures...
- Mark Looney
- Analog Devices
