Noise, vibration, audio signal processing
The NI Sound and Vibration Measurement Suite Version 7.0
extends analysis functionality with NI LabVIEW virtual instruments (VIs) for
performing psychoacoustic measurements, making it possible for engineers to
quickly set up tests to quantify sound quality. Additionally, National Instruments
announced the NI USB-4432, a portable bus-powered dynamic signal acquisition
module for making high-accuracy sound and vibration measurements.
The Sound and Vibration Measurement Suite 7.0 supports
full-featured sound quality analysis, so engineers can ensure high-quality
acoustics in their designs. The LabVIEW VIs in the Sound and Vibration
Measurement Suite also contain octave analysis, frequency analysis and order
tracking for automotive, military and aerospace and mechanical and structural designs.
Engineers quickly and efficiently can get their applications started with the
configuration-based Sound and Vibration Assistant or with more than 50
ready-to-run LabVIEW example code bases provided in the Sound and Vibration
The Sound and Vibration Measurement Suite is ideal for
machine monitoring, machine health and machine efficiency applications.
Engineers can develop applications faster by using examples for tachometer
processing, order spectra and waterfall plots. The Sound and Vibration
Assistant now includes new machine monitoring displays to quickly configure
machine diagnostic utilities. The new displays provide diagnostics for motor
balance and shaft position in addition to more traditional order analysis
The USB-4432 delivers 108 dB of dynamic range to properly
capture high-frequency, low-amplitude vibrations in the presence of
low-frequency, high-amplitude signals. The module consists of four analog input
channels for reading from integral electronics (IEPE) sensors and a fifth
channel for tachometer input. The five channels simultaneously acquire at rates
up to 102.4 kS/s, extending the frequency bandwidth and performing
higher-frequency readings than other NI USB solutions. In addition, the
USB-4432 features configurable ac/dc coupling to allow for a variety of
vibration sensors on each channel, making it ideal for a wide range of portable
applications such as machine condition monitoring and NVH.