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…
What is Auto Spectral Density?
The Auto Spectral Density or Auto RMS spectrum analyses uses Fourier Transforms to process optionally overlapped sections of the input data. The result of each Fourier analysed section is called a periodogram. We then process all the resulting periodograms to produce a spectral result. (more…)
Sound, Vibration & Acoustics Digest #1
This is the first in a (hopefully) regular series of posts containing interesting & unusual sound & vibration stories that we have discovered around the web. We hope you enjoy…
[Video] Exporting DATS datasets in non-linear format
To complement our recent post on Exporting DATS datasets in non-linear format here is James Wren demonstrating the method. https://www.youtube.com/watch?v=sh6Q3FwjtR4
How to set up scheduled data captures
A video that explains how to set up the DATS Data Acquisition software to perform captures at specific, scheduled times. https://www.youtube.com/watch?v=jeJ6a0U9vjk
Prosig Seminar in Hiroshima, Japan on the 3rd & 4th December, 2013
Prosig and their partners, SV Japan, will be holding a two-day training seminar for current and new customers in Hiroshima on Tuesday 3rd and Wednesday 4th December 2013. Subjects covered…
[Video] Create AVI files from your structural animations
The DATS Modal Analysis software consists of Hammer Impact Testing, Modal Analysis & Structural Animation (often referred to as Operational Deflection Shapes or ODS and Running Modes). Having measured and…
Relative signal levels of a sinusoid with and without background noise
In the process of looking at some order data, a question about the accuracy of the measurement of the signal level of discrete frequency signals which were close to the general noise level. To answer this question, a small DATS worksheet was created which generated 2 signals. The first signal was a 35 Hz sinusoid which, by itself the spectrum level was measured to be approximately -9 dB (ref 1 V) as seen in Figure 1.
A Method Of Diagnosing Cyclic Events In An Internal Combustion Engine
A method to identify subjectively objectionable disturbances (e.g. piston slap, valve tick,… etc) in internal combustion engines
Prosig Customer Seminar in China
Prosig's Partner in China, Suzhou SV Technology Co Ltd, will be hosting a Prosig Chinese Customer Meeting Day on 25th October 2013. The day will be held at Suzhou SV…
Read our “Sound & Vibration Engineering” magazine on Flipboard
Are you a Flipboard user? "What is Flipboard?" some of you will ask. Flipboard is an up-and-coming mobile app for pulling all of your news sources and social media together…
Is That Tone Significant? – The Prominence Ratio
The Prominence Ratio is a technique designed to see if there are any aurally prominent tones in a signal. Primarily, it is applicable where we have a noise source with…
[Video] Creating speed signals for data with no tacho
So you've got some noise and/or vibration data from a rotating machine, but no speed information. Surely that means you can't analyse against speed or do any order analysis, right?…
The ISVR is 50 Years Old
The Institute of Sound & Vibration Research (ISVR) at Southampton University was formed in 1963 and is 50 years old this year. Prosig was founded by staff from the Institute…
[Video] Using reference cursors to measure data
A tutorial by James Wren (Prosig UK) on how to use the reference cursors in the DATS software to precisely measure features in your data. http://www.youtube.com/watch?v=PSnldTfaQIE
How do I perform vibration analysis on a cylinder head and inlet manifold?
We were asked the following question…
I want to perform some cylinder head and inlet manifold vibration analysis, what should I do?
First we need to consider sensor selection (more…)
Come and see Prosig at SAE 2013 Noise and Vibration Conference and Exhibition
If you are visiting the SAE 2013 Noise and Vibration Conference and Exhibition in Grand Rapids (May 20th - 23rd) then please come along and see us at booth 409.…
10 More Cool Engineering Videos
Our previous collection of cool engineering videos in 2010 proved so popular that we just had to make another list. So here we present another 10 really cool engineering videos.…
[Video] Disabling P8000 cooling fans during data capture
Justin Foster (Prosig UK) explains how to set up the DATS software to switch off the P8000's cooling fans during data capture. This can be important to reduce noise during…
What Can I Do About Spikes In My Data?
Whether you call them spikes, glitches, anomalies or data dropouts, these phenomena have been a problem to engineers ever since they started recording data. There are any number of reasons…
[Video] A simple CAN-bus measurement setup
A simple tutorial that explains how to use the DATS Acquisition software to set up a Prosig P8000 to capture data from a CAN-bus. http://www.youtube.com/watch?v=XeAuntGW-O4
Come & see Prosig at Testing Expo North America 2012
Prosig will be at Automotive Testing Expo North America from today, October 23rd, until October 25th 2012. Among the hardware and software on display will be some of the latest developments to…
New Version of DATS Out Now – V7.0.23 Released
The latest version of the DATS software is now available. Log in to the Prosig support site to download your copy. The new version, V7.0.23, contains many new features, improvements and bug fixes. Read on to find out a little of what you can expect. (more…)
