What Are dB, Noise Floor & Dynamic Range?
We are often asked what noise floor & dynamic range actually are. Most engineers are probably familiar with or have come across the decibel or dB as a unit of…
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Using Source Contribution Analysis to analyze complex structural dynamics issues
Using Source Contribution Analysis (SCA) and Structural Animation (STA) in the DATS software for the analysis of complex structural dynamics This post uses Source Contribution Analysis (SCA) techniques and a…
Noise & Vibration Analysis: Back To Basics
Sometimes it doesn't hurt to revisit some of the basic building blocks that form the foundation of what we do. And so we have gathered together a few of our…
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 to use an Analogue Channel with Tachometer Signals on the P8000
When using an analogue channel input channel of a P8000, with a tachometer sensor, is it possible to utilise the tachometer processing functions as you would if you were using…
When should I use the ground connection on my P8000 data acquisition system?
The ground connection should be used if an issue has been observed in measured data, such as significant electricity supply (50Hz or 60Hz) distortion or significant noise. It must be attached…
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
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] 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…
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…
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[Video] How To Calibrate Microphones & Accelerometers
Here are two videos on a relatively simple, but sometimes misunderstood procedure – how to calibrate microphones & accelerometers (more…)
A Simple Capture, Analysis and Report (Part 2)
http://www.youtube.com/watch?v=4ejGBG5ImfY Part two of the four tutorials showing a simple setup to capture, analyze and produce a report using Prosig’s DATS software and P8000 hardware. This part deals with setting…
[Video] A Simple Capture, Analysis and Report (Part 2)
http://www.youtube.com/watch?v=4ejGBG5ImfY Part two of the four tutorials showing a simple setup to capture, analyze and produce a report using Prosig’s DATS software and P8000 hardware. This part deals with setting…
[Video] A Simple Capture, Analysis and Report (Part 1)
http://www.youtube.com/watch?v=dGRzTxzUWfE The first part of a series of four tutorials showing a simple setup to capture, analyze and produce a report using Prosig's DATS software and P8000 hardware. Part 2…
A Simple Capture, Analysis and Report (Part 1)
http://www.youtube.com/watch?v=dGRzTxzUWfE The first part of a series of four tutorials showing a simple setup to capture, analyze and produce a report using Prosig's DATS software and P8000 hardware. Part 2…
What Is The Difference Between Single Ended & Differential Inputs?
Prosig data acquisition systems use differential inputs, but what are they and why are they so special? This subject is not always fully understood and, therefore, the focus of this…
How To Float Output Windows in DATS Acquisition V4
Nowadays it is easy to attach extra screens to most computers. It is not uncommon to have a two or even three monitor setups. Even with laptops it is fairly easy to attach either a full size extra monitor or maybe a small screen via USB. To make full use of this extra screen ‘real estate’ one needs software applications that allow parts of the interface to be moved into separate windows. This process is often known as ‘floating’. The following article outlines how to use floating tabs in DATS Acquisition. This feature has always been important in automotive testing, but is now becoming more useful in other applications.
Do You Need To Measure Brake Noise?
The objective of the brake noise tests was to record the braking events of cars being driven on various types of road and classify those events according to their type (Groan, Creep or Squeal etc) and severity. To do this the customer needed a system capable of working for long periods inside a vehicle in fairly tough conditions (high ambient temperatures, rough road) that was both quick to install and to remove.
On previous tests a system from another supplier had turned out to be unreliable and had failed to cope with the harsh environment. The analysis processing had also proved tedious and time consuming due to the huge amount of data created when testing several vehicles over many days.
Prosig Power Units Offer New Levels Of Flexibility
The size and shape of the Prosig P8000 data acquisition systems greatly facilitates installation in locations that are small or difficult to access. Now Prosig can offer a new level…
Measuring Exhaust Noise Using A P8000 System
The following note describes measuring exhaust noise using a Prosig P8000/DATS system for the refinement of an automotive muffler design for a major after-market exhaust manufacturer in Europe. The particular vehicle under test was required by local legislation to have an overall radiated noise level of less than 70 dB. When tested, the vehicle was found to be producing 71.8 dB of radiated noise. The design of the exhaust system clearly needed to be reviewed and modified. (more…)
