NI PXIe-4497 Sound and Vibration Data Acquisition Module

The NI PXIe-4497 is a 16-channel sound and vibration data acquisition module for PXI Express systems. It delivers 24-bit resolution across all channels with simultaneous sampling up to 204.8 kS/s and a dynamic range of 114 dB, making it suitable for high-fidelity acoustic and vibration measurement tasks.

The module includes software-selectable IEPE signal conditioning with 0 or 4 mA excitation current and integrated open/short circuit detection for IEPE sensors. Built-in anti-aliasing filters automatically adapt to the selected sampling rate, with high-pass filtering at −3 dB (0.5 Hz) and −0.1 dB (3.2 Hz). Gain settings extend to +20 dB across two selectable stages, with input ranges from ±1 V to ±10 V. AC/DC coupling is independently configurable per channel.

TEDS read/write capability enables automatic sensor configuration from transducer electronic data sheets. Analog and digital overload detection with channel-specific reporting protects against signal clipping and data loss. The compliance voltage reaches 24 V, with the usable range dependent on common-mode voltage, sensor bias, and full-scale signal voltage.

– Technical Specifications

• Analog Input Channels: 16, 24-bit resolution, simultaneous sampling
• Sampling Rate: Up to 204.8 kS/s per channel
• Dynamic Range: Up to 114 dB
• Input Coupling: AC/DC selectable per channel
• Input Ranges: ±1 V to ±10 V
• Gain Settings: Up to +20 dB (2 selectable stages)
• Anti-Aliasing Filters: Automatic adaptation to sampling rate; −3 dB at 0.5 Hz, −0.1 dB at 3.2 Hz high-pass response
• IEPE Excitation Current: 0 or 4 mA, software-selectable
• IEPE Compliance Voltage: 24 V
• Power Consumption: +3.3 V at 2100 mA; +12 V at 810 mA
• Physical: 6.3 × 3.9 inches; 11.5 oz
• Operating Temperature: 0 °C minimum

– Key Features

• IEPE sensor open and short circuit detection
• TEDS read/write for automatic configuration
• Analog and digital overload detection with channel reporting
• InfiniBand 4x connectors (BNC conversion available)
• PXI_CLK10 reference synchronization via onboard PLL
• Programmable Function Interface (PFI) trigger input

– Compatibility & Integration

The module integrates into PXI Express systems and locks to the 10 MHz PXI clock. Analog I/O uses InfiniBand 4x connectors with optional BNC adapter cables (BNC-2144 or equivalent). Sample clock generation uses a DDS chip referenced to PXI_CLK10 for precision timing.