Description
The National Instruments PXIe-4468 is a highly versatile PXI Sound and Vibration Module designed for comprehensive sound and vibration analysis. Manufactured by National Instruments, this module comes with part numbers 788512-01 (Mini-XLR) and 788511-01 (BNC), catering to different connectivity needs.
This dynamic module features two-channel dynamic signal generation and acquisition, allowing for flexible data analysis and signal processing. Users can select from one of six gain settings for the input range configuration, ensuring precise measurements across various scenarios.
The PXIe-4468 supports both AC and DC coupling, providing versatility in signal analysis. Additionally, it comes equipped with IEPE conditioning, enabling direct connection and powering of IEPE sensors. A notable feature is its built-in tone generator, which is essential for test signal generation in sound and vibration analysis.
The output stage of the PXIe-4468 can be configured as differential, and it also supports configuration to pseudodifferential mode via software. This flexibility is further enhanced with software correction for gain difference, where a -22.0 mdB gain difference is automatically corrected when configured in pseudodifferential mode in software, ensuring accurate measurements.
Moreover, the module offers common-mode noise rejection capabilities. It is recommended to establish a connection between the chassis ground of the PXIe-4468 and the input device ground to maximize the effectiveness of this feature, thereby enhancing measurement integrity by mitigating potential noise interference.
| Specification | Detail |
|---|---|
| Manufacturer | National Instruments |
| Model | PXIe-4468 |
| Part Numbers | 788512-01 (Mini-XLR), 788511-01 (BNC) |
| Category | PXI Sound and Vibration Module |
| Channels | Two-channel dynamic signal generation, Two-channel acquisition |
| Input Range Configuration | One of six gain settings |
| Coupling | AC/DC |
| IEPE Conditioning | Yes |
| Built-in Tone Generator | Yes |
| Output Stage Configuration | Differential, Can be configured to pseudodifferential mode in software |
| Software Correction for Gain Difference | -22.0 mdB automatically corrected when configured in pseudodifferential mode in software |
| Common-mode Noise Rejection | Connection between chassis ground of PXIe-4468 and input device ground recommended |
Question 1: What type of module is the PXIe-4468?
Answer 1: It’s a PXI Sound and Vibration module.
Question 2: Does PXIe-4468 support IEPE sensors?
Answer 2: Yes, it has IEPE conditioning.
Question 3: Can PXIe-4468 generate test signals?
Answer 3: Yes, it features a built-in tone generator.
Question 4: What coupling methods does PXIe-4468 support?
Answer 4: It supports both AC and DC coupling.
Question 5: How does PXIe-4468 correct for gain difference?
Answer 5: Automatically in software, correcting a -22.0 mdB gain difference.
