Sound, Vibration & Acoustics Digest #9
Here's our latest collection of noise, vibration and acoustics stories from all corners of the internet. We hope you enjoy them. Leave us a comment. Acoustics via Business Insider Owl…
Is Orchestral Noise Damaging Hearing?
Having played the trumpet for over 10 years I have left many an orchestral rehearsal with my ears ringing courtesy of the onslaught of noise from the trombone section behind me. In searching for a topic for my final year research project as part of my studies at Southampton University, the risk of hearing loss to orchestral musicians seemed a natural choice.
Processing pump data – a classic case of amplitude modulation
When dealing with some vibration data from a pump, we observed some strange phenomena in the data. It turned out to be a classic case of amplitude modulation. Here we explain what that means.
“The History and Future of Fourier Analysis” Workshop at SAE 2015, Grand Rapids
Are you attending the SAE 2015 Noise and Vibration Conference and Exhibition in Grand Rapids, Michigan, USA from 22nd to 25th June 2015? Why not go and see Dr Colin Mercer,…
SAE 2015 Noise and Vibration Conference in Grand Rapids, Michigan
Prosig are pleased to announce that we will be exhibiting at the SAE 2015 Noise and Vibration Conference and Exhibition in Grand Rapids, Michigan, USA from 22nd to 25th June 2015. This…
How Do I Measure Whole Body Vibration?
Whole Body Vibration (WBV) analysis for continuous vibration uses assessment criteria defined in the ISO2631 standard and the EEC vibration directive 2002/44/EC. These assessments are based on the processing of…
Creating An End of Line Vibration Test System
Prosig was contracted by Imperial Electric in Akron, Ohio to integrate a system for end of line vibration test for electric motors they manufacture. The requirement was to qualify motors under…
RMS From Time History And FFT Spectrum
The RMS of a time history is a measure of the signal's overall energy and is often used when extracting features from a signal for prognosis and trending of vibration…
Sound, Vibration & Acoustics Digest #8
To welcome you to 2015 here's our latest collection of news articles, videos and other miscellaneous links on noise, sound, acoustics and vibration that have caught our eye over the…
How Do I Calibrate An Impact Hammer?
The intention of this article is not to present any new scientific theories or ground breaking techniques, but to introduce new users to hammer impact testing and remind seasoned technicians of a method…
Sound, Vibration & Acoustics Digest #7
Chip/crisp packets, smartphones, the spooky sounds in space and the absolutely fascinating Diana Deutsch Speech to Song Illusion; welcome to our latest digest Extracting audio from visual information https://newsoffice.mit.edu/2014/algorithm-recovers-speech-from-vibrations-0804Algorithm recovers…
A Guide To Resonance
Our articles on how to measure resonance and natural frequency are always amongst our most popular posts. This isn't surprising considering what an important concept this is to the measurement…
Sound, Vibration & Acoustics Digest #6
There's a distinct coffee "flavour" to our latest digest with two stories related to the bean. We hope you enjoy the articles we've found and as always please leave your…
What is Operating Deflection Shape (ODS) Analysis?
Operating Deflection Shape (ODS) analysis is a method used for visualisation of the vibration patterns of a machine or structure caused by unknown operating forces. This is different from the study of the…
Come & See Prosig At Automotive Testing Expo 2014 China
If you are visiting the Automotive Testing Expo 2014 China in Shanghai (September 15th - 17th) then please come along and see us at stand 9013. You will able to see all the…
Prosig Join Condition Monitoring Group Limited
Prosig is pleased to announce that it has become part of Condition Monitoring Group (CMG) Limited. Prosig Limited will retain its operation in Fareham, Hampshire and will continue to operate with…
Sampling and Filtering Data for ISO8041 Compliance and Human Body Vibration Data Weighting
Various human body vibration measurements and assessments are defined in the ISO2631, ISO5349, ISO6954 standards and also in the EEC vibration directive 2002/44/EC. These assessments are based on the analysis…
Sound, Vibration & Acoustics Digest #5
I hope you like our latest collection of news, articles and videos from the world of acoustics, vibration and analysis. After a very acoustics biased last edition we've dedicated this…
Sound, Vibration & Acoustics Digest #4
I hope you like our latest collection of news, articles and videos from the world of acoustics, vibration and analysis. This issue of the digest is very "acoustical" and includes…
Bearing & Gearbox Vibration Analysis using Demodulation Techniques? (Part 2)
In our previous post on this subject we briefly looked at how we can use the detailed design information of bearings and gearboxes to look for specific fault conditions by collecting vibration information and analysing their frequency spectra. Amplitude modulation of the vibration signatures is common and we have seen how this causes side-bands to be present in the frequency domain.
Bearing & Gearbox Vibration Analysis Using Demodulation Techniques (Part 1)
Bearings and gearbox vibration are fundamental issues for rotating machines in many industrial applications. These are critical components and, as such, any failure can prove expensive in both repair cost…
Examples of Structural Animation
The video below shows some examples of structural animation using Prosig's DATS software. https://www.youtube.com/watch?v=QsVzk0wwcR0
Sound, Vibration & Acoustics Digest #3
Our latest selection of news and interesting stories from around the web. There's definitely a motor sports theme to this edition of the digest, but with a bit of space…
How do we design or modify a system to avoid resonance?
After finding the natural frequency of a system, what could be done to stop or reduce the systems resonance being excited? Basically put, how do we avoid resonance This is…
Sound, Vibration & Acoustics Digest #2
Here is our latest collection of sound, vibration, condition monitoring & acoustics articles from around the web. In this issue we take you on a sonic journey from Stonehenge to…
