Description
The National Instruments PXI-4461 is a PXI Sound and Vibration Module designed for a wide range of applications, including audio test, automotive noise, vibration, and harshness (NVH), and machine condition monitoring. The module carries the part number 779687-01 and falls under the category of PXI Dynamic Signal Analysis (DSA).
This module features two-channel dynamic signal generation and acquisition, allowing for versatile testing and analysis capabilities. Users can configure the input range according to one of six gain settings, providing flexibility in signal measurement. The PXI-4461 offers programmable AC/DC coupling, as well as IEPE conditioning, supporting sensors that require constant current excitation.
For analog input (AI), the module supports both differential and pseudo-differential terminal configurations. It is designed with a resistance of 50 Ω between the BNC shell and chassis frame for pseudo-differential configurations. To ensure the integrity of data, the PXI-4461 incorporates digital filters to stop aliasing, enhancing the quality of measurements.
The module’s analog input channels come with 24-bit resolution ADCs that are simultaneously sampled, offering precise data acquisition. Supported sampling rates include 44.1 kS/s, 48.0 kS/s, and more, allowing for flexible data capture to meet various application needs.
Regarding calibration, the PXI-4461 provides options for NIST accredited calibrations through a 3rd party, as well as basic in-house calibration, ensuring that the module meets rigorous standards for accuracy and reliability in measurements.
| Specification | Detail |
|---|---|
| Part Number | 779687-01 |
| Category | PXI DSA |
| Model | PXI-4461 |
| Description | National Instruments PXI-4461 PXI Sound and Vibration Module |
| Channels | Two-channel dynamic signal generation and acquisition |
| Input Range Configuration | One of six gain settings |
| Coupling | Programmable AC/DC |
| IEPE Conditioning | Yes |
| Applications | Audio test, automotive NVH, machine condition monitoring |
| Terminal Configurations for AI | Differential and pseudo-differential |
| Resistance | 50 Ω between the BNC shell and chassis frame (pseudo-differential) |
| Filters | Digital filters to stop aliasing |
| Analog Input Channels | 24-bit resolution ADCs, simultaneously sampled |
| Sampling Rates | 44.1 kS/s, 48.0 kS/s, etc. |
| Calibration Options | NIST accredited calibrations through a 3rd party; basic in-house calibrationQuestion 1: What is the part number of the PXI-4461? Answer 1: The part number is 779687-01. Question 2: Can the PXI-4461 do IEPE conditioning? Question 3: What resolution do the ADCs of PXI-4461 have? Question 4: Does the PXI-4461 offer AC/DC coupling? Question 5: Are PXI-4461’s input channels simultaneously sampled? |
