Impact Hammer Double Hit – An Investigation
An Impact Hammer double hit is viewed as a common problem, and most hammer impact testing software offers a "Double hit" rejection function. Signals captured with double impacts are not…
Understanding CAN Bus: The Nervous System of a Modern Vehicle
Understanding CAN bus (Controller Area Network Bus) is essential to modern automotive engineering. The CAN bus, and its variants, are now universal across the automotive industry and beyond. On many…
Tools for motorcycle dynamics analysis
Tools for motorcycle dynamics analysis - Prosig DATS and Structural Animation Viewer Mechanical engineering covers a vast field of topics, but not many fields feature higher dynamics in time and…
Some Basic Vibration Signal Qualities
This article discusses quantifying basic vibration signals from three aspects: signal type, signal level, and signal display format. Mathematical expressions and typical applications are also introduced. A simple harmonic vibration…
Example of performing a Moving Average
This tutorial guides a DATS user through the steps required to perform a moving average on a given signal. The tutorial explains the concept of the ‘Integration Length’ and the ‘Output Interval Step’.
Initially a signal is required to perform the moving average on. In this tutorial a sine wave will be generated. A sine wave is generated using the parameters shown in Figure 1.
business man hand tablet computer and nuclear power plant background
Seismic Qualification Testing (Part 1)
Seismic Qualification Testing for US Nuclear Power Generating Stations Part 1 (Random Vibration Testing) The nuclear power industry in North America (USA, Canada & Mexico) requires seismic qualification testing for…
Exhaust Vibration Measurement – A Case Study
Exhaust Vibration Measurement - Customer Requirement One of Prosig's customers needed to perform exhaust vibration measurement on some of their vehicles. They contracted Prosig to take the measurements and provide reports of the…
Enabling Audio Playback in P8000 Acquisition Software
It is possible to enable audio playback to listen to audible frequencies while recording or monitoring when using a P8000 and the V4 Acquisition software.
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…
Making an Orbit Plot
A short video tutorial describing how to create an orbit plot using the DATS software https://www.youtube.com/watch?v=VP4esKwLuCg
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 Mapping Software Example
https://www.youtube.com/watch?v=KNZ3In5sisA
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…
[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
Exporting DATS datasets in non-linear format
The following tutorial shows in detail how to use Prosig DATS to export data in a non-linear format.
DATS stores all data in linear format. When you export data you are exporting the raw stored data. Therefore, to export data in a non-linear fashion we must convert the data to non-linear scale (dB for our example) and then export to the desired format, in this case CSV. (more…)
The end for Windows XP. Are you ready?
Microsoft has recently announced that security updates and patches for its Windows XP operating system will end from 08 April 2014.
http://www.microsoft.com/en-gb/windows/enterprise/endofsupport.aspx
Many organisations are now having to update older PCs and laptops to Windows 7 or Windows 8. (more…)
Creating calculated signals with DATS Acquisition
Case Study: What can I do if the transducer I am using has a non-linear sensitivity over its measuring range?
Abstract
Recently a PROSIG user wanted to measure a specific temperature parameter on a running engine. The transducer being used was one of the engine sensors built into the engine operating system to minimize engine emissions and maximize fuel economy. Unfortunately, the sensitivity of this transducer was not constant over the desired temperature range. The question then became, how can the output from this non-linear transducer be used to accurately measure the desired temperature parameter? (more…)
[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?…
[Video] Storing FRFs, coherence & time series
James Wren (Prosig UK) explains how to store FRFs, coherence and/or time series data in modal hammer testing using Prosig's P8000 & DATS software. http://www.youtube.com/watch?v=JLumlmoRCvM
[Video] What are nodes, components & structures in modal testing
James Wren (Prosig UK) explains how nodes, components & structures are used in modal hammer testing using Prosig's P8000 & DATS software. http://www.youtube.com/watch?v=FmNCqv7p3pc
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…
New DATS Hammer Software – Preview Available
As mentioned in a previous post and in our last email newsletter (signup form on the right of this page) we are pleased to announce that the preview version of the new DATS Hammer Impact software is now available for download. (more…)
DATS & P8000 on Windows 8
For anyone curious about Prosig's DATS software & P8000 hardware running under the newly released Microsoft Windows 8 we can report that everything works as smoothly as ever. Here at…
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…)
How Do I Get An XYZ Resultant Waterfall
A user has three signals captured using a triaxial accelerometer and asked “What is the simplest way to get the XYZ resultant from run-up file?” He had tried forming a resultant of the raw time histories, but didn’t fully understand the resultant time history.
Of course, the correct way of processing the data is to calculate the individual waterfalls from the x, y & z data and then calculate a resultant waterfall. (more…)
