Description
The National Instruments PXI-4461 is a high-performance PXI Sound and Vibration Module that is designed to cater to a wide range of applications, including audio testing, automotive noise, vibration, and harshness (NVH), and machine condition monitoring. This module comes with a part number 779687-01 and falls under the category of PXI DSA.
It features a two-channel dynamic signal acquisition and two-channel generation setup, which makes it versatile for various testing and measurement scenarios. The PXI-4461 model is equipped with one of six gain settings for the input range design, allowing for flexibility in accommodating different signal levels.
For signal conditioning, it offers programmable AC/DC coupling and IEPE conditioning, ensuring that it can adapt to a wide variety of sensor types and signal processing requirements. The module supports both differential and pseudo-differential terminal configurations for analog inputs, enhancing its capability to handle complex measurement tasks.
Moreover, it incorporates digital filters to prevent aliasing in the analog input channels, ensuring the integrity and accuracy of the data acquired. The acquisition clock synchronization feature is particularly useful for mixed-signal applications, allowing for precise timing and synchronization across channels.
Triggering options include both digital and analog triggers, providing flexibility in setting up measurement initiation criteria based on specific test requirements. The PXI-4461 boasts 24-bit ADCs, offering high-resolution data acquisition for detailed and accurate measurement results. Sampling rates are software-programmable, including options such as 44.1 kS/s and 48 kS/s, allowing users to select the optimal rate according to their specific application needs.
Additionally, the resistance between the BNC shell and chassis is specified at 50 Ω, ensuring a reliable and stable connection for signal integrity. This technical specification highlights the module’s capability to deliver precise, reliable, and high-quality sound and vibration data acquisition and generation, making it an ideal choice for engineers and researchers in a variety of fields.
| 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 acquisition and two-channel generation |
| Input Range Design | One of six gain settings |
| Coupling and Conditioning | Programmable AC/DC coupling and IEPE conditioning |
| Applications | Audio test, automotive noise, vibration, and harshness (NVH), machine condition monitoring |
| Terminal Configurations for AI | Differential and pseudo-differential |
| Resistance Between BNC Shell and Chassis | 50 Ω |
| Analog Input Channels | Digital filters to prevent aliasing |
| Acquisition Clock Synchronization | Yes, for mixed-signal applications |
| Triggering | Digital and analog |
| Resolution | 24-bit ADCs |
| Sampling Rates | Software-programmable, including 44.1 kS/s and 48
Question 1: What is the part number of the PXI-4461? Question 2: How many channels does the PXI-4461 offer for acquisition? Question 3: Does PXI-4461 support IEPE conditioning? Question 4: What is the resistance between the BNC shell and chassis? Question 5: Can PXI-4461’s sampling rate be programmed? |




