Description
The National Instruments PXI-4461 is a PXI Sound and Vibration Module, identified by part number 186900F-01 (779687-01). This module falls under the category of PXI DSA, designed specifically for applications such as audio test, automotive NVH (Noise, Vibration, and Harshness), and machine condition monitoring. It is renowned for its two-channel dynamic signal generation and acquisition capability, making it a versatile tool in the realm of sound and vibration analysis.
The PXI-4461 features an input range design that allows for one of six gain settings, providing flexibility in handling various signal strengths. The module supports both programmable AC/DC coupling and IEPE conditioning, enhancing its adaptability to different sensor types and measurement requirements. This is further complemented by its terminal arrangements for analog input (AI), which include both differential and pseudo-differential configurations. The pseudo-differential resistance is specified as 50 Ω between the BNC shell and chassis frame, ensuring reliable measurements.
To ensure the integrity of data, the PXI-4461 incorporates digital filters to prevent aliasing, a critical feature for maintaining the quality of the signal analysis. The input channels are configurable on a per-channel basis, allowing for tailored setup according to specific test requirements. Moreover, the module’s acquisition clock can be synchronized with other devices, facilitating coordinated measurements in complex setups.
Triggering options are robust, with support for both digital and analog triggering, thereby offering flexibility in initiating data capture based on precise conditions. Data fidelity is assured with 24-bit resolution ADCs, enabling high-precision measurements. The sampling rates are software-programmable, with examples including 44.1 kS/s and 48.0 kS/s, accommodating a range of data acquisition speeds.
Last but not least, the PXI-4461 module is designed to be calibrated, with a recommended calibration interval of annually or every two years, ensuring continued accuracy and reliability in measurements. This module represents a comprehensive solution for professionals in fields requiring detailed and precise sound
| Specification | Details |
|---|---|
| Part Number | 186900F-01 (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 Design | One of six gain settings |
| Coupling and IEPE Conditioning | Programmable AC/DC coupling and IEPE conditioning |
| Applications | Audio test, automotive NVH, machine condition monitoring |
| Terminal Arrangements for AI | Differential and pseudo-differential |
| Pseudo-Differential Resistance | 50 Ω between the BNC shell and chassis frame |
| Digital Filters | Includes digital filters to prevent aliasing |
| Input Channels Configuration | Configurable on a per channel basis |
| Synchronization | Acquisition clock can be synchronized with other devices |
| Triggering | Digital and analog triggering |
| Resolution | 24-bit resolution ADCs |
| Sampling Rates | Software-programmable, e.g., 44.1 kS/s, 48.0 kS/s |
| Calibration | Available to be calibrated, recommended annually or every two years |
Question 1: What is the part number for the NI PXI-4461 module?
Answer 1: 186900F-01 (779687-01)
Question 2: How many channels does the PXI-4461 have for signal acquisition?
Answer 2: Two-channel
Question 3: What type of coupling does the PXI-4461 support?
Answer 3: Programmable AC/DC coupling and IEPE conditioning
Question 4: What is the resolution of the PXI-4461’s ADCs?
Answer 4: 24-bit
Question 5: What is the recommended calibration interval for the PXI-4461?
Answer 5: Annually or every two years
