Data Translation expands sound and vibration system to 256 channels

Aug. 24, 2015

Marlboro, MA. By combining four rugged VIBbox-64 enclosures, Data Translation has expanded its sound and vibration measurement capability to 256 IEPE channels.

All channel data is available at the same time due to the simultaneous operation and parallel configuration for a throughput rate of 51.2 kHz on each channel. This parallel measurement capability assures that vibration data can be analyzed at the same instant in time without the time lapse and phase difference of multiplexed systems. IEPE inputs from sensors such as microphones and accelerometers that have a large dynamic range can be connected directly and measured at this very fast throughput. Common applications are acoustic, audio, and vibration testing on large structures such as airplane wings, turbines, trucks, and water vessels such as Navy ships before launching.

In addition to the 256 IEPE input channels, VIBbox in this large configuration also includes other I/O capability, including 32 stimulus D/A channels, 16 tachometer channels, and a plethora of digital I/O, counter/timer, and measure-counter channels.

VIBbox operates using the ready-to-measure QuickDAQ application with advanced FFT analysis as standard. The easy-to-use QuickDAQ application acquires data, analyzes the data, records the data to disk, and displays and plots the results.

According to Fred Molinari, president, “Large structures must be analyzed to determine the vibration effects from motors and engines. For example, a Navy ship must undergo stringent tests before launch at many different points to understand how it will perform at sea under duress of storms. VIBbox allows this capability now at 256 different points at the same exact instant in time, giving a complete panorama for analysis. The same measurement tests must be performed on aircraft, trucks, etc.”

About the Author

Rick Nelson | Contributing Editor

Rick is currently Contributing Technical Editor. He was Executive Editor for EE in 2011-2018. Previously he served on several publications, including EDN and Vision Systems Design, and has received awards for signed editorials from the American Society of Business Publication Editors. He began as a design engineer at General Electric and Litton Industries and earned a BSEE degree from Penn State.

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