Acquisition platform gains extreme capabilities
A
Bruel and Kjaer product story
Edited by the Engineeringtalk editorial team
Nov 2, 2006
The latest release of the Pulse sound and vibration data acquisition and analysis platform introduces Response Equalisation Extreme (REq-X) unique to Bruel and Kjaer.
The latest release of the Pulse sound and vibration data acquisition and analysis platform introduces Response Equalisation Extreme (REq-X) unique to Bruel and Kjaer.
The new REq-X feature extends the measurement capability of the platform, facilitates the first-time acquisition of valid data, and eliminates annoying measurement re-takes.
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.
The accelerometer upper frequency limit has been extended by 50%.
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%, to half the resonant frequency.
Applications include: acoustics, machine diagnostics, electro-acoustics, structural dynamics and vibroacoustics.
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