rms Archive
Developing an Algorithm for Tick Detection
Posted on August 23, 2010 | 3 CommentsAn investigation was made of a sample of automotive components where some were exhibiting a high frequency “tick” or rattle during each operating cycle. This feature could be heard above...
Amplitude And Energy Correction – A Brief Summary
Posted on September 1, 2009 | 8 CommentsAmplitude and energy correction has been and is a continuing point of confusion for many people calculating spectra from time domain signals using Fourier transform methods. The first thing to...
Order Cuts And Overall Level
Posted on February 25, 2007 | No CommentsOrder cuts are taken from a set of FFTs, each one at a different rpm. The rms level is then found as the Square root of the Sum of the...
Examples Of Event Extraction And Removal
Posted on November 9, 2006 | 1 CommentIn many cases only significant events, such as bumps or other transients in a signal are of relevance. The objective is to be able to isolate these events in a...Dynamic Range And Overall Level : What Are They ?
Posted on June 7, 2001 | No CommentsAccurate measurement of a signal depends on the dynamic range and the overall level of the data acquisition system. The overall level setting may be thought of as determining the...Does The Signal Have A Gaussian Probability Density?
Posted on June 6, 2001 | No CommentsThe PROB module in DATS for Windows provides, amongst other options, a probability density analysis. Also, the signal generation suite has a module, GENPRB, which generates a classical Gaussian probability...
Time Varying Overall Level
Posted on May 1, 2001 | No CommentsA common requirement in noise and vibration analysis is to find the overall level of a signal as a function of time. Now the overall level is a measure of...
