Dynamic Signal Acquisition

  • 24-bit ADCs and DACs with up to 118 dB dynamic range
  • 2 to 5,000 channels of simultaneous data acquisition in USB, PCI, and PXI
  • Signal acquisition and generation up to 204.8 kS/s
  • Flexible measurement platform for machine condition monitoring, NVH, and audio test
  • Open, powerful sound and vibration measurement and analysis with LabVIEW
  • Audio, vibration, spectrum, and frequency analysis

National Instruments provides many tools for building custom sound and vibration measurement and analysis systems. Start with the highly integrated sound and vibration platform, comprised of the powerful LabVIEW graphical development software and cutting-edge computer-based measurement hardware. You will realize lower costs, greater performance, and flexibility you never thought possible in a sound and vibration measurement system. The NI sound and vibration platform is ideal for audio testing, acoustic measurements, environmental noise testing, vibration analysis, NVH measurements, noise and vibration control, machine condition monitoring, rotating machinery evaluation, and much more.

Dynamic Signal Acquisition
Sound and vibration measurement hardware from NI gives you the flexibility to create a wide variety of custom automated measurement systems on industry-standard computer platforms. Systems can combine data acquisition, modular instrumentation, signal conditioning, vision, motion products and more. NI dynamic signal acquisition (DSA) devices are designed specifically for applications requiring audio, noise, and vibration measurements. They can acquire signals at sampling rates up to 204.8 kS/s with 24-bit resolution.

Multidevice Synchronization
Options are available to build systems that synchronize acquisition on up to 5,000 channels of signals, such as accelerometers and microphones. NI DSA devices can be synchronized with less than 0.1 deg phase mismatch between channels.

Recommended Software
LabVIEW Sound and Vibration Toolkit -- For audio measurements, fractional-octave analysis, swept sine analysis, sound-level measurements, frequency analysis, frequency response measurement, and transient analysis. Visualization capabilities include waterfall display, colormap display, octave graph, and magnitude/phase display.

LabVIEW Order Analysis Toolkit -- For order tracking, order extraction, and tachometer signal processing. Visualization capabilities include orbit plots, polar plots, bode plots, cascade plots, and shaft centerline plots.