Product category:
Condition monitoring and vibration analysis
News Release from: Bruel and Kjaer UK | Subject: REq-X feature
Edited by the Processingtalk Editorial
Team on 02 November 2006
Response Equalisation extends
sound+vibration DAQ
The new Response Equalisation Extreme feature extends the measurement capability of the Pulse sound and vibration data acquisition and analysis platform available from B + K
The latest release Pulse 11, of the Pulse sound and vibration data acquisition and analysis platform, introduces 'Response Equalisation Extreme' (REq-X), a feature unique to Bruel and Kjaer The new REq-X feature extends the measurement capability of the platform, facilitates first-time acquisition of valid data, and eliminates annoying measurement re-takes
This article was originally published on Processingtalk on 10 Jul 2008 at 8.00am (UK)
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The new REq-X feature extends and flattens the frequency-response curves of transducers (like accelerometers and microphones) in real time, during data acquisition.
The Pulse multi-analyser (pressure, sound, and vibration data-acquisition and data-analysis) platform has a long and successful history of use in many research and development fields, such as aerospace, automotive, environmental and production testing.
The advantages of using Pulse 11 are more accurate measurements, wider frequency range, and using the same transducer covers more applications.
Response Equalisation extends the frequency range in which a single transducer can be used and improves the accuracy of the measurement.
This also means that the same microphone can be used for different sound fields: free field, pressure-field, and random.
Furthermore, the microphone can be corrected for various microphone accessories (for example, windscreen) and a better accuracy obtained.
Until now it has been recommended to limit the use of accelerometers to frequencies up to one third of their resonant frequency.
Using Pulse 11, the recommended upper limit of frequency can be extended by 50 percent, to half the resonant frequency.
Applications include: acoustics, machine diagnostics, electro-acoustics, structural dynamics, and vibro-acoustics.
For an overview of Pulse applications, please visit the website.
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