National Instruments (NI) presents the NI Sound and Vibration Measurement Suite, Version 6.0, and the NI PXI-4495 16-channel sound and vibration data acquisition module. This suite contains a comprehensive collection of analysis and signal-processing tools for noise, vibration and harshness, machine monitoring and audio test applications. It includes NI Sound and Vibration Assistant 6.0 software that combines interactive configurable data acquisition, analysis and data logging, and NI LabVIEW analysis VIs.
Via a standalone interactive environment, the Sound and Vibration Assistant is designed to simplify the process of acquiring and analyzing noise and vibration signals by offering a way to continually interact with varying data analysis settings while logging data to disk for future analysis. Furthermore, Assistant makes it possible to share acquired signals and analysis results with other applications through UFF file I/O support, and it can provide analysis functions, such as power spectrum, octave analysis, frequency response, sound and vibration level, tachometer processing, order analysis and order tracking.
NI says Suite 6.0 extends the analysis functionality of NI LabVIEW software with torsional vibration and human vibration weighting filter LabVIEW VIs. Torsional vibration is a common phenomenon for rotating machinery. Rotating components, such as shafts and couplings, rotate when torque is applied. Monitoring these torsional vibrations in a rotating system helps to ensure that the system operates properly. Human vibration refers to the effects of mechanical vibration on the human body. Measuring and analyzing human vibration signals can help control the negative effects of mechanical vibration in applications that are rigorous on the human body.
The PXI-4495 is a high-accuracy data acquisition module designed for high-channel count sound and vibration applications, such as structural health monitoring, electrical power measurements and machine condition monitoring. Engineers can use the NI PXI-4495 in an 18-slot PXI chassis to synchronize up to 272 channels. The module saves application development time by reducing the need for code generation because it is programmed with NI-DAQmx featuring DAQmx Channel Expansion functionality, allowing data acquisition code to be the same for one channel, 16 channels or 272 channels. The PXI-4495 module features a maximum sampling rate of 204.8 kS/s per channel.
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