PCI solution for sound and vibration monitoring
October 2005
Data Acquisition & Telemetry
National Instruments is offering a 24-bit data acquisition and generation module, the NI PCI-446, which is believed to be the highest-performing dynamic signal acquisition (DSA) board on the PCI bus with a 118 dB dynamic range. The release also includes the National Instruments LabVIEW Sound and Vibration Toolkit Version 4, with 10 new Express VIs for simplified application development. These new products add to the comprehensive NI hardware and software tools for sound and vibration applications, including PXI, PCI and USB measurement devices and powerful, easy-to-use analysis software.
In addition to 24-bit output channels on PCI, the PCI-4461 DSA board offers two 24-bit input channels, making it suitable for stimulus response applications such as audio and structural tests. The input-only version, the NI PCI-4462, provides four 24-bit input channels and a 118 dB dynamic range. Engineers can synchronise multiple PCI-4461 and PCI-4462 boards to attain four-input and four-output systems or six-input and two-output systems for applications such as simultaneous 5.1 speaker surround sound test or acoustic holography. Both boards also feature IEEE 1451.4 transducer electronic data sheet (TEDS) capability, which simplifies the configuration of a microphone or an accelerometer measurement.
The NI LabVIEW Sound and Vibration Toolkit 4 is easier to use with 10 new Express VIs (virtual instruments) for interactively developing applications and generating code for fractional octave analysis, frequency response, vibration and sound level and other common analyses. Engineers can customise applications such as integrated vibration level measurements, weighted sound level measurements, swept sine analysis, power spectrum analysis, limit testing and transient analysis.
Engineers can further extend their sound and vibration analysis with the upgraded LabVIEW Order Analysis Toolkit 2.1 that features a friendly application programming interface and simpler graphing options. With improved resampling and Gabor techniques for online and off-line analysis capability, the toolkit is good for order tracking, order extraction and tachometer signal processing. Simplified visualisation capabilities include orbit, polar, bode, cascade, waterfall and shaft centreline plots.
About National Instruments
National Instruments is a technology pioneer and leader in virtual instrumentation - a concept that has changed the way engineers and scientists in industry, government and academia approach measurement and automation. Taking full advantage of PCs and commercial technologies, virtual instrumentation increases productivity and lowers costs for test, control and design applications through easy-to-integrate software and modular measurement and control hardware for PXI, PCI, USB and Ethernet. Headquartered in Austin, Texas, NI has more than 3600 employees and direct operations in nearly 40 countries. In 2004, the company sold products to more than 25 000 companies in 90 countries.
For more information contact Michael Hutton, National Instruments SA, 011 805 8197, [email protected], www.ni.com/soundandvibration
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