National Instruments PXI-4465

The National Instruments PXI-4465 is a high-precision Dynamic Signal Analyzer designed specifically for sound and vibration applications, including laboratory research, audio testing, automotive evaluations, and noise, vibration, and harshness (NVH) diagnostics. This module features two simultaneous analog input channels, with a maximum sample rate of 204.8 kS/s and a 24-bit Delta-sigma analog-to-digital converter (ADC) that provides a dynamic range of 118 dB. The PXI-4465 supports six gain settings, accommodating input ranges from ±316 mV to ±42.4 V, and includes software-configurable AC/DC coupling, IEPE conditioning, and variable anti-aliasing filters to ensure accurate measurements across various devices such as accelerometers and microphones.

Equipped with BNC female analog I/O connectors and an SMB male digital trigger connector, the PXI-4465 is compatible with the MXI platform, facilitating streamlined data transfer. The module occupies a 1-slot width in the PXI chassis, delivers an excitation current of 10 mA, and features a total harmonic distortion (THD) of 108 dB. With a FUFO buffer size of 2,047 samples and support for Direct Memory Access (DMA) data transfers, the PXI-4465 is a robust solution for Category I measurements, though it is not intended for applications in Categories II, III, or IV. The dimensions of the module are 6.3 x 3.9 inches, and it weighs 8.5 ounces. A comprehensive user manual and maintenance manual are available for download, and inquiries regarding pricing should be directed to a sales representative. The PXI-4465 is backed by a 2-3 year warranty, ensuring quality and reliability for your testing needs.