Noise & Vibration Analyzer

The reference tool for the study of dynamic signals.

Software interface displaying multiple analytical graphs and data tables.

NVA is the reference tool for studying dynamic signals typical of NVH world. It is designed for different hardware acquisition system architectures, from simple NI-cDAQ to the multi-channel NI-PXI station. NVA is an extremely versatile multi function measurement system that can be used both as a system for signal acquisition and real time analysis, equipped with monitoring functions, and as a tool for the detailed analysis: from time to frequency domain analysis, from order to structural analysis.

  • The NVA system supports a wide range of functionalities and analyses, making it adaptable to the most advanced measurement and control needs:

    • Order Acoustic Analysis: Measurement and representation of acoustic and vibrational signals through sonograms, Campbell diagrams, 3D waterfalls, and FFT analysis.

    • Monitoring and Control: Programming measurements and sequences with automated alarm management.

    • Environmental Analysis: Calculation of acoustic pressure and vibration levels, including psychoacoustic parameters such as loudness and sharpness.

    • Advanced Functions: Determination of a system's natural frequencies, damping calculations, and analysis of elastic deformations in 2D/3D.

    • Customization: Each software library includes options for configuring acquisition, measurement, and reporting parameters.

  • The Noise & Vibration Analyzer is designed to ensure flexibility and scalability:

    • Hardware: Composed of a PC (desktop, notebook, or portable) and one or more data acquisition boards. PXI architectures can be used for specific requirements.

    • Signal Conditioning: Includes interfaces for conditioning and powering measurement transducers.

    • Software: Based on LabVIEW, it provides an industrial standard environment with advanced numerical processing techniques.

    • Acquisition Boards: Available in various configurations, ranging from devices specific to acoustic signals to general-purpose multichannel boards (up to 64 channels per board).

  • The Noise & Vibration Analyzer is utilized across multiple sectors, thanks to its flexibility and advanced capabilities:

    • Automotive: NVH (Noise, Vibration, Harshness) analysis, testing of engines, transmissions, and mechanical components.

    • Civil and Structural: Measurement of vibrations in buildings, bridges, and infrastructure for safety assessments.

    • Electronics: Testing of vibration-sensitive devices, such as printed circuit boards and microelectronic components.

    • Transportation and Defense: Performance evaluation of land, maritime, and military vehicles under extreme operating conditions.

    • FFT Resolution: Programmable up to 2^32 points.

    • Real-Time Channels: Up to 8 channels depending on sampling frequency and processor performance.

    • Acquisition Boards: Resolution from 12 to 24 bits, with a dynamic range > 130 dB.

    • Frequency Analysis: Support for 1/1, 1/3, 1/6, 1/12, and 1/24 octaves.

    • Processing Functions: Spectrum analysis, coherence, real and complex transfer, narrowband analysis.

    • Signal Generator: Generation of sinusoidal, square, sawtooth, white/pink noise, and custom signals (.WAV).

    • Configuration and Reporting: User-configurable setups, data export in tabular format, graphical reports.

    • Acoustic Weighting: A, B, C, D, and customizable.

    • Software Compatibility: Import/export of binary and ASCII files, multi-platform management.