When one thinks of noise in a signal it is generally associated with having been added in some way to the amplitude of a signal. This is not always the…
Where Does The Noise Come From?
When one thinks of noise in a signal it is generally associated with having been added in some way to the amplitude of a signal. This is not always the…
Waterfall Analysis: Frequency Resolution and Smearing
When measuring noise and vibration in rotating machines, especially complex devices like automobile engines, it is very important to fully understand what is being measured and what analyses need to…
Understanding the Importance of Transducer Orientation
When monitoring vibration on large gas or steam turbines and generators with fluid-film bearings, the relative movement of the shaft within the bearing is typically measured by a pair of…
How To Analyze Noise & Vibration In Rotating Machines
In this article we will look at the basic steps behind a simple rotating machinery study. We won’t look in great detail at some of the techniques involved – we deal with…
Which Should I Use? Real & imaginary? Or magnitude & phase?
In one of our recent articles a question was asked regarding the practical use of real & imaginary type plots compared with modulus & phase type plots. In general, noise…
Converting Acceleration, Velocity & Displacement
From time to time I meet engineers who are interested in the conversions between acceleration, velocity and displacement. Often, they have measured acceleration, but are interested in displacement or vice…
Where Does The Noise Come From?
Posted on May 14, 2012 | 2 CommentsWhen one thinks of noise in a signal it is generally associated with having been added in some way to the amplitude of a signal. This is not always the...
Waterfall Analysis: Frequency Resolution and Smearing
Posted on April 18, 2012 | No CommentsWhen measuring noise and vibration in rotating machines, especially complex devices like automobile engines, it is very important to fully understand what is being measured and what analyses need to...
New Version Of DATS Out Now – V7.0.22 Released
Posted on March 26, 2012 | No CommentsThe latest version of Prosig’s DATS software was released today and is available to download from the Prosig Support web pages. Read on to find out about some the new features…
Understanding the Importance of Transducer Orientation
Posted on March 20, 2012 | No CommentsWhen monitoring vibration on large gas or steam turbines and generators with fluid-film bearings, the relative movement of the shaft within the bearing is typically measured by a pair of...
Testing Times : Why & How We Measure Noise & Vibration
Posted on February 28, 2012 | No CommentsWe’re going to look today at some of the practical aspects of testing and consider why it’s important that you should measure and, more importantly, understand the noise and vibration...
Why is the microphone pressure reference 2*10-5 Pascals?
Posted on February 7, 2012 | No CommentsThis seemingly simple question is actually quite fundamental. To answer the question we need to consider sound intensity. Now sound intensity is defined as “the average rate of flow of...
Mari Aerotech To Attend Automotive Testing Expo India 2012
Posted on January 25, 2012 | No CommentsProsig’s Indian distributor, Mari Aerotech, will be exhibiting at Automotive Testing Expo India 2012. The conference runs on 6th, 7th & 8th March 2012 at Chennai Trade Centre. Automotive Testing Expo India...
Measuring Torsional Vibration 101
Posted on January 24, 2012 | No CommentsDo you need to measure torsional vibration? Interested in shaft twist? Worried about rotational jitter? Don’t worry, we’ve got it covered. Here we have gathered together our most popular articles...
How To Calculate A Resultant Vector
Posted on January 12, 2012 | No CommentsWe can distinguish between quantities which have magnitude only and those which have magnitude and are also associated with a direction in space. The former are called scalars, for example,...
Negative Frequencies – What Are They?
Posted on December 13, 2011 | 2 CommentsNormally when we are analysing a signal it is a purely real signal, that is it has no imaginary part. A classic example is of course a sine wave. When...
A New Partner In Condition Monitoring – VibrationDiagnostics Ltd
Posted on December 8, 2011 | 2 CommentsProsig have worked for many years with Chris White when he was employed by RWE nPower in the Turbine Generator Rotating Plant Dynamics and Condition Monitoring Group. RWE use the...
What’s All The Noise About?
Posted on November 24, 2011 | 4 CommentsWe’ve come across a number of great noise related resources lately. So, rather than keep them all to ourselves, we have decided to share them with our readers. Thanks should...
