NVT is a versatile tool dedicated to the acquisition, recording, monitoring, and analysis of noise, vibrations, and dynamic phenomena. It supports various acquisition architectures such as NI-cDAQ, NI-cRIO, and NI-PXI and is compatible with Windows and NI-RealTime platforms.

Key Features

• Advanced Analysis: Includes analysis functions like Time, FFT, FRF, Third-Octave Bands, Spectrograms, Psychoacoustic Analysis, Order Tracking, Orbits, Bode Diagrams, and more.

• Wide Applicability: Suitable for characterizing mechanical, electromechanical, and electroacoustic equipment, as well as for production plant control and monitoring.

• Configurability: Supports PC platforms (Notebook, Desktop, PXI) for static laboratory applications, dynamic scenarios (e.g., road tests), and production line tasks (functional testing and monitoring).

WINTEK NVT Software

• Developed using the LabVIEW environment, compatible with Windows and real-time operating systems.

• Available as a stand-alone package or modular libraries for functional testing and production line control.

Hardware and Interfaces

• Customizable Front-End: User-configurable with 16-24 bit AD/DA converters and 1-64 channels.

• Sensor Support: Compatible with accelerometers, microphones, force sensors, strain gauges, instrumented hammers, and transducers for physical and electrical quantities.

• Conditioning Electronics: Provides power and signal conditioning for field transducers.

• Reference Inputs: Includes inputs for reference tachometric signals.

NVT stands out as a complete, highly configurable PC-based system, ideal for laboratory applications, dynamic field tests, and industrial production line monitoring.

• NVT PC Version, Notebook, External Modular Unit for Signal Acquisition and/or Conditioning CompactDAQ Application Software

• NVT PXI Version complete with PXI System, Embedded Unit, Modular Chassis for Signal Conditioning, Application Software

Measurement Libraries

• Environmental acoustic analysis.

• Order acoustic analysis.

• Transfer function analysis.

• Real-time monitoring of acoustic and vibrational quantities and automatic mode for plant monitoring and inline quality control.

All libraries include the definition of acquisition, measurement, and report parameters.

The NVT system finds application in numerous fields thanks to its versatility and advanced analysis capabilities. Here are some of the main applications:

1. Automotive Sector

   • Road-Test: Analysis of vibrations and noise on moving vehicles.

   • Development and Testing: NVH (Noise, Vibration, Harshness) characterization of components such as engines, suspensions, and braking systems.

   • Production Line Testing: Quality control and monitoring to ensure compliance of mechanical and electromechanical components.

2. Mechanical and Electromechanical Industry

   • Diagnostics: Vibration analysis to identify faults in industrial machinery.

   • Characterization: Testing equipment like compressors, pumps, and turbines.

   • Predictive Monitoring: Implementing maintenance strategies based on operational conditions.

3. Aerospace and Defense

   • Vibration and Noise Analysis: Monitoring aerospace structures during static and dynamic tests.

   • Functional Tests: Validation of avionics and electromechanical component performance.

4. Electroacoustics and Psychoacoustics

   • Quality Testing: Evaluating the acoustic performance of devices such as speakers, microphones, and headphones.

   • Psychoacoustic Analysis: Studying sound perception to develop innovative products.

5. Research and Development

   • Multidisciplinary Projects: Studying complex phenomena in physics, engineering, and applied sciences.

   • Advanced Analysis: Using features like FFT, Spectrograms, and Bode Diagrams for laboratory experiments.

6. Production Monitoring and Control

   • In-line Testing: Monitoring production plants to ensure quality standards and prevent anomalies.

   • Integration with Industrial Systems: Connecting to industrial networks for automated management.

7. Construction and Infrastructure

   • Structural Analysis: Monitoring vibrations in buildings, bridges, and tunnels during dynamic tests.

   • Structural Diagnostics: Detecting anomalies or critical mechanical stress in civil structures.

Thanks to its flexibility and modular functions, NVT is ideal for complex, dynamic, or highly specialized testing environments.

Hardware

Ingressi Analogici

• Numero dei Canali in Ingresso: da 1 a 64

• Convertitori AD: risoluzione da 16, 18 o 24 bit con tecnologia mpx o delta-sigma e filtri anti-aliasing

• Banda: selezionabile da 500 Hz a 100 kHz per canale

• Impedenza di Ingresso:  > 1 Mohm

• Amplificatori di Segnale: guadagno programmabile indipendente per ogni canale da +/- 10 mV a +/- 10V

• Gamma dinamica: da 70 dB a 120 dB

Condizionamento di Segnale

• Ingressi in Tensione

• Ingressi in Corrente

• Ingressi Tipo ICP per microfoni e/o accelerometri

• Ingressi per Ponti Estensimetrici

• Ingressi Preamplificati per Microfoni Prepolarizzati Tipo Electret

• I/O Digitali Optoisolati per la sincronizzazione con PLC

Software

Funzioni di Base

• Analisi in Banda Stretta: FFT con risoluzione fino a 2^32 punti

• Analisi in Ottave: 1/1 – 1/3 – 1/12  conformi IEC 1260 - ANSI.S1

• Funzioni di Pesatura: A, B, C, User e Lineare conformi ANSI.S1

• Costanti di Tempo: Slow, Fast, Impulse, User confomi IEC 651

• Unità di Misura: programmabili dall'utente

• Decimazione: programmabile dall'utente

• Precisione di Calcolo: floating point, double precision

• Setup e Taratura Trasduttori definibili da utente

• Salvataggio e lettura da HD dei segnali acquisiti

• Import / Export in formato ASCII tabellare

• Monitoraggio e Controllo Produzione

• Librerie Funzioni di Analisi in formato Test Stand

• Definizione delle Soglie / Allarmi da Utente

• Procedure di Collaudo programmabili da Utente

Librerie Software

• Acustica Ambientale

• Livelli e Spettri di Pressione (Istantaneo e Leq) – IEC 804

• Livelli e Spettri di Vibrazione (Acc. - Vel. - Spost.)

• Potenza Acustica (ISO 3743/3745)

• Esposizione a Vibrazioni (ISO 2631)

• Analisi Acustica d'Ordine

• Order Tracking Modulo e Fase

• Waterfall

• Sonogrammi (STFT) e Diagrammi di Campbell

• Analisi Indici di Articolazione

• Frequenze Critiche Cuscinetti a Sfere

• Analisi Vibrazioni Macchine Rotanti (ISO 2372/3945)

• Analisi Strutturale

• Funzioni di Trasferimento

• Calcolo degli Smorzamenti e Frequenze Proprie

• Calcolo della Deformata elastica

• Proprietà Acustiche di Materiali (ASTM-1050)