Description
The Part Number 779687-01 identifies a specific PXI Dynamic Signal Analyzer, categorized under PXI DSA with the model number PXI-4461. This device features a two-channel dynamic signal generation and two-channel acquisition, making it versatile for various signal processing tasks.
One of the key aspects of this device is its Input Range Design, which allows for selection from one of six gain settings to accommodate different signal amplitudes. Additionally, it offers programmable AC/DC coupling and IEPE conditioning, enhancing its adaptability to different sensor types and signal conditions.
It is particularly suited for applications such as audio test, automotive NVH (Noise, Vibration, and Harshness), and machine condition monitoring, showcasing its flexibility in handling different types of analytical and diagnostic tasks. The device also supports both differential and pseudo-differential terminal arrangements for AI (Analog Input), ensuring compatibility with a wide range of sensor types.
An important feature is the Input Channels Resistance, which is specified as 50 Ω between the outer BNC shell and chassis frame, indicating its design to minimize noise and interference for high-quality signal acquisition. Moreover, it incorporates digital filters to prevent aliasing, further enhancing the quality of the acquired signals.
The configuration of the device can be adjusted on a per-channel basis for differential mode and pseudo-differential mode, offering a high degree of flexibility in signal acquisition. Additionally, its acquisition clock can be synchronized with other devices, facilitating coordinated measurements in complex setups.
Triggering options include both digital and analog, allowing for precise control over the timing of signal acquisition. The PXI-4461 boasts 24-bit resolution analog-to-digital converters, ensuring high-fidelity signal capture. Sampling rates are software-programmable, including options such as 44.1 kS/s and 48.0 kS/s, providing flexibility in balancing between resolution
| Parameter | Description |
|---|---|
| Part Number | 779687-01 |
| Category | PXI DSA |
| Model | PXI-4461 |
| Channels | Two-channel dynamic signal generation and two-channel acquisition |
| Input Range Design | One of six gain settings |
| Coupling and Conditioning | Programmable AC/DC coupling and IEPE conditioning |
| Applications | Audio test, automotive NVH, machine condition monitoring |
| Terminal Arrangements for AI | Differential and pseudo-differential |
| Input Channels Resistance | 50 Ω between the outer BNC shell and chassis frame |
| Digital Filters | Prevents aliasing |
| Configuration | Per channel basis for differential mode and pseudo-differential mode |
| Synchronization | Acquisition clock can be synchronized with other devices |
| Triggering | Digital and analog |
| Resolution | 24-bit resolution analog-to-digital converters |
| Sampling Rates | Software-programmable, includes 44.1 kS/s and 48.0 kS/s |
| Calibration | Available, options include NIST accredited and basic in-house calibrations |
Question 1: What is the part number for the PXI-4461?
Answer 1: 779687-01
Question 2: How many channels does the PXI-4461 have?
Answer 2: Two-channel acquisition and generation
Question 3: Does the PXI-4461 support IEPE conditioning?
Answer 3: Yes, it has programmable IEPE conditioning.
Question 4: What are the applications of the PXI-4461?
Answer 4: Audio test, automotive NVH, machine monitoring.
Question 5: What is the resolution of the PXI-4461’s ADC?
Answer 5: 24-bit resolution




