Enhanced software for noise frequency response analysis

The continuous frequency sweep VI can perform frequency response and total harmonic distortion tests in one-tenth of the time traditional swept-sine approaches take. This function makes it possible for engineers and scientists to easily shift between the time and frequency domains, providing the ability to move beyond using fast Fourier transform (FFT) in signal analysis. As well as increasing the speed of test, the continuous frequency sweep makes it possible for new signals - such as a device under test residue signal - to be analysed to characterise the response without stimulus signal interference.

In addition to the new AES17-compliant audio filter and continuous frequency sweep VIs, the LabVIEW VIs in the Sound and Vibration Measurement Suite contain octave analysis, frequency analysis and order tracking for automotive, military and aerospace and mechanical and structural designs. The measurement suite also includes the NI Sound and Vibration Assistant 2009, a standalone application for quickly acquiring, analysing and logging acoustic, noise and vibration data. The latest version of the Sound and Vibration Assistant features enhancements to the user interface to provide easy tachometer setup and support for using eddy current probes for displacement measurements. Engineers and scientists can quickly and efficiently get their applications started with the configuration-based Sound and Vibration Assistant or with the more than 50 ready-to-run LabVIEW example code bases included in the Sound and Vibration Measurement Suite 2009.

Go to www.ni.com/soundandvibration for more information on the NI Sound and Vibration Measurement Suite 2009 and tools for noise frequency response analysis or use the form on this page to request a callback or more information. Additionally, visit the NI USB Noise, Vibration and Harshness System bundle on www.ni.com to assemble and purchase a custom system for specific NVH applications.