Measurement Systems for the Analysis of Electroacoustic Devices and Telecommunications

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The analysis and verification of electroacoustic devices and telecommunications equipment require advanced measurement systems to evaluate parameters such as frequency response, distortion, sensitivity, and signal quality. These systems, which integrate hardware, DSP technologies, and dedicated software, provide accurate and repeatable tests, ensuring compliance with industrial standards and meeting end-user needs.

Essential for ensuring reliable performance and high quality, measurement systems enable precise analysis of a wide range of devices. This allows for the optimization of their behavior in critical areas such as audio reproduction, data transmission, and wireless communication.

Features

Precision and Reliability

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  • High accuracy in the measurement of acoustic, electrical, and transmission parameters.

  • Repeatability of results for comparative analysis.

Modularity and Flexibility

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  • Customizable configurations to suit different types of devices.

  • Compatibility with standard protocols and embedded systems.

Automation

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  • Fully automated test procedures to increase efficiency in production lines and reduce human errors.

IoT Integration

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  • Support for wireless communication and cloud-based analysis for remote monitoring.

Measurement Systems

Electroacoustic Devices

    • Frequency Response: Evaluation of the range of frequencies reproduced with accuracy.

    • Total Harmonic Distortion (THD): Measurement of sound quality.

    • Sensitivity: The ability of a device to convert an electrical signal into an acoustic signal (or vice versa).

    • Directivity: Angular distribution of sound radiation.

    • Reference Microphones: Used for calibration and monitoring of the acoustic response.

    • Audio Amplifiers: Used to power devices and measure their response.

    • Spectrum Analyzers: For detecting distortions and noise.

    • Anechoic Chambers: Isolated environments for precise measurements without external interference.

    • Speaker, Microphone, Headphone, and Soundbar Testing.

    • Evaluation of Active Noise Cancellation (ANC) Systems.

    • Verification of Conference Equipment and Assistive Devices.

Telecommunications Devices

    • Signal Power: The level of transmitted and received signals.

      Latency: Transmission time and signal delay.

      Signal Quality (SNR): Signal-to-noise ratio for data transmission.

      Error Rates (BER): Measurement of errors in digital transmission.

      Bandwidth: The device's ability to transmit a range of frequencies.

    • Network Analyzers: Used to measure impedances, return losses, and RF performance.

    • Spectrum Analyzers: For evaluating bandwidth occupancy and detecting interference.

    • Wireless Network Simulations: To test mobile devices under controlled conditions.

    • Digital Oscilloscopes: For time-domain analysis of transmitted signals.

    • Signal Generators: To create standardized test signals.

    • Testing of smartphones, tablets, modems, routers, and IoT devices.

    • Evaluation of 5G, Wi-Fi, Bluetooth, and other wireless technologies.

    • Quality control of telecommunications networks and infrastructure.

Technologies and Software for Analysis

Advanced Technologies

  • DSP (Digital Signal Processing): Used to filter, analyze, and process acoustic and electrical signals.

  • Machine Learning: For detecting anomalies and predicting performance.

  • FEM Simulations (Finite Element Method): For virtual analysis of electroacoustic devices.

Software

  • LabVIEW and specific libraries for audio and RF analysis.

  • Integration with IoT platforms for remote management and data processing.

Reference Products

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NVA - Noise Vibration Anaylzer

The reference tool for studying dynamic signals.

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NVT - Noise Vibration Tester

Multi-Purpose Measurement Software for Acoustic and Vibration Phenomenon Analysis

Vibration analysis software interface with data graphs and spectrograms.

NVT-HMS - Health Monitoring System

Integrated System for Vibration and Dynamic Parameter Monitoring

Applicazioni

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In industrial plants, these systems enable the monitoring of machine operating conditions, the management of automated processes, and predictive diagnostics, helping to reduce downtime and optimize productivity.

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In the automotive sector, measurement systems are used to test the efficiency and reliability of infotainment systems, acoustic sensors for driver assistance, and vehicle-to-vehicle (V2V) communication devices, helping to improve safety and the driving experience.

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In the energy and utilities sector, these systems support remote monitoring of critical infrastructures through IoT sensors and wireless technologies, ensuring real-time control of networks and efficient management of energy resources.

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In the transportation sector, they are used to analyze communication devices intended for traffic control and safety management in railway and maritime transportation, improving operational efficiency and passenger safety.