NI's new suite for condition monitoring
3rd Quarter 2009
Other technologies
A new portable bus-powered dynamic signal acquisition module and a suite of vibration sensors that can be used for machine condition monitoring applications have been released by National Instruments.
The NI USB-4431 DSA module acquires data at rates from 1 to 102,4 kS/s. The combination of the USB-4431 and new vibration sensors gives engineers and scientists a complete stimulus response system from a single vendor for seamless product integration.
I/O channels
The USB-4431 is a five-channel DSA module for making high-accuracy measurements from integrated electronics piezoelectric (IEPE) sensors. The module consists of four 24-bit simultaneously sampled analog input channels and one 24-bit analog output channel. The USB-4431 also works well for a wide variety of field test applications such as frequency response audio tests and suspension shaker tests due to its portability. Additionally, the module delivers 100 dB of dynamic range and incorporates software-selectable IEPE signal conditioning for accelerometers and microphones.
Sensor suite
The new sensor suite includes three high-accuracy accelerometers and a triaxial accelerometer that are compatible with all NI DSA devices. The accelerometers have low-impedance output signals that allow for accurate signal transmission over long cables, and their small form factor makes them easy to include in a wide variety of monitoring and test systems. The triaxial accelerometer characterises the acceleration of an object or device being measured in all three dimensions with a single sensor to minimise cabling at the source.
Also included in the sensor suite is a modal analysis impact hammer. The impact hammer, triaxial accelerometer and USB-4431 combine to form a precise structural monitoring stimulus response test system.
Software suite
Engineers and scientists can get their applications up and running quickly and efficiently with the configuration-based NI Sound and Vibration Assistant software or with ready-to-run NI LabVIEW software example code bases provided in the NI Sound and Vibration Measurement Suite. The Sound and Vibration Measurement Suite also features pre-built virtual instruments (VIs) for NVH (noise, vibration and harshness) and rotating machinery vibration analysis applications.
For more information visit www.ni.com/soundandvibration or contact National Instruments, +27 (0)11 805 8197, [email protected], www.ni.com/southafrica
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