The National Instruments 779682-01 Sound and Vibration Device, designated as the PCI-4472B model, is an advanced data acquisition module engineered for high-precision sound and vibration measurements. This flexible device features eight channels for dynamic signal capture, enabling simultaneous sampling to facilitate in-depth analysis in various applications such as machine condition monitoring, noise and vibration diagnostics, and audio testing. The 779682-01 incorporates Integrated Electronic Piezoelectric (IEPE) signal conditioning, allowing it to interface seamlessly with transducers like accelerometers and microphones, thus ensuring reliable measurements across a wide dynamic range.

Equipped with a 24-bit delta-sigma analog-to-digital converter (ADC), the module provides enhanced measurement accuracy and supports a bandwidth range from DC to 45 kHz, accommodating the comprehensive recording needs of vibration and sound data. The device allows for both AC and DC input options, selectable via software, offering versatility in signal processing. Additionally, it supports synchronization for high channel count applications through the PXI star trigger bus or the PCI RTSI bus, making it well-suited for complex setups that require multiple data acquisition points.

The 779682-01 features customizable triggering options, including analog triggers with programmable full-scale levels and adjustable slopes, as well as digital triggers compatible with 5 V TTL/CMOS signaling. This allows for precise configuration to respond to varying signal conditions, enhancing its applicability in diverse scenarios. The device’s compliance voltage is rated at 24 V, and users can select IEPE current settings of either 0 or 4 mA, ±5% per channel via software. With its robust capabilities, the 779682-01 is an indispensable tool for achieving accurate and reliable sound and vibration measurements in industrial environments.