Description
The 779687-01 is a dynamic signal analyzer from the PXI DSA category, specifically the PXI-4461 model. This device boasts 2-channel dynamic signal generation and 2-channel acquisition, making it highly versatile for a range of applications. It is designed to accommodate one of six gain settings in its input range design, and offers AC/DC programmable input coupling, ensuring flexibility in signal testing.
Furthermore, the PXI-4461 incorporates IEPE conditioning, making it suitable for applications in audio testing, automotive NVH (Noise, Vibration, and Harshness), and machine condition monitoring. It supports both differential and pseudo-differential terminal configurations for analog input (AI), ensuring adaptability for various testing environments. Additionally, it features a resistance between the BNC shell and chassis of 50 Ω, indicating its robust build quality.
For precision data capture, the device is equipped with digital filters to prevent aliasing on its analog input channels. Users can configure the input channel on a per channel basis, choosing between differential or pseudo-differential modes to best suit their measurement needs. Moreover, the PXI-4461 enables synchronization of the acquisition clock with other devices, enhancing its utility in complex setups requiring precise timing.
Triggering options are comprehensive, offering both digital and analog methods. With 24-bit AD converters, the device ensures high-resolution data acquisition. The sampling rates are software-programmable, including common rates like 44.1 kS/s and 48.0 kS/s, among others. This flexibility allows users to tailor the device’s performance to their specific project requirements.
Regarding maintenance, calibration is available and recommended annually or biennially. The calibration services are provided by Apex Waves, offering NIST accredited calibrations through a third party, as well as basic in-house calibration, ensuring that the PXI-4461 operates at its best performance levels.
| Feature | Description |
|---|---|
| Part Number | 779687-01 |
| Category | PXI DSA |
| Model | PXI-4461 |
| Channels | 2-channel dynamic signal generation, 2-channel acquisition |
| Input Range Design | One of six gain settings |
| Input Coupling | AC/DC programmable |
| IEPE Conditioning | Incorporated |
| Applications | Audio test, automotive NVH, machine condition monitoring |
| Terminal Configurations for AI | Differential, Pseudo-differential |
| Resistance Between BNC Shell and Chassis | 50 Ω |
| Analog Input Channels | Digital filters to prevent aliasing |
| Input Channel Configuration | Per channel basis (differential or pseudo-differential) |
| Synchronization | Acquisition clock can be synchronized with other devices |
| Triggering | Digital and analog |
| Resolution | 24-bit AD converters |
| Sampling Rates | Software-programmable, e.g., 44.1 kS/s, 48.0 kS/s |
| Calibration | Available, recommended annually or every two years |
| Calibration Provider | Apex Waves, NIST accredited calibrations through a 3rd party, basic in-house calibration |
Question 1: What is the resolution of the PXI-4461?
Answer 1: 24-bit resolution.
Question 2: Can the PXI-4461 handle IEPE conditioning?
Answer 2: Yes, it supports IEPE conditioning.
Question 3: How many channels does the PXI-4461 have?
Answer 3: 4 channels: 2 DAC and 2 ADC.
Question 4: Is calibration available for the PXI-4461?
Answer 4: Yes, calibration is available annually or biennially.
Question 5: Does the PXI-4461 support synchronization?
Answer 5: Yes, it enables acquisition clock synchronization.



