Description
The PXI-4461 is a dynamic signal analyzer and generator designed for a variety of applications including audio test, automotive NVH (Noise, Vibration, and Harshness), and machine condition monitoring. This device, with a part number 779687-01, belongs to the PXI DSA category and offers advanced features for high-precision measurements and signal generation.
It features 2-channel dynamic signal generation and acquisition, allowing for versatile testing and analysis capabilities. Users can benefit from its flexibility through one of six gain settings for the input range design, ensuring optimal signal conditioning for various measurement scenarios. Moreover, the device provides programmable AC/DC coupling and IEPE conditioning, enhancing its adaptability for different types of sensors and signals.
The PXI-4461 supports both differential and pseudo-differential terminal arrangements for analog inputs, which, coupled with an input channel resistance of 50 Ω between the BNC shell and chassis frame, ensures reliable and accurate signal integrity. To prevent aliasing and maintain signal fidelity, digital filters are available.
With a focus on flexibility, the device allows for per channel basis configuration, supporting mixed differential and pseudo-differential setups. This feature is particularly useful for complex testing scenarios requiring varied signal measurements. Synchronization capabilities are also part of the package, enabling the acquisition clock to be synchronized with other devices for coherent data collection across multiple channels or systems.
Triggering options include both digital and analog methods, providing the versatility needed for precise start and stop conditions. High-resolution data acquisition is guaranteed with 24-bit resolution analog-to-digital converters, ensuring detailed and accurate signal representation. The sampling rates are software-programmable, including options like 44.1 kS/s and 48.0 kS/s, allowing for customization based on the specific requirements of the application.
To maintain accuracy and reliability, calibration is available and recommended either annually or every two years
| Specification | Detail |
|---|---|
| Part Number | 779687-01 |
| Category | PXI DSA |
| Model | PXI-4461 |
| Channels | 2-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 |
| Input Channel Resistance | 50 Ω between the BNC shell and chassis frame |
| Digital Filters | Available to prevent aliasing |
| Channel Configuration | Per channel basis, support for mixed differential and pseudo-differential configurations |
| 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, including 44.1 kS/s and 48.0 kS/s |
| Calibration | Available, recommended annually or every two years |
| Calibration Options | NIST accredited calibrations through a 3rd party or basic in-house calibration |
Question 1: What is the PXI-4461 used for?
Answer 1: Used for audio tests, automotive NVH, and machine condition monitoring.
Question 2: How many channels does the PXI-4461 have?
Answer 2: It has 2-channel dynamic signal generation and acquisition.
Question 3: Does the PXI-4461 support IEPE conditioning?
Answer 3: Yes, it supports programmable AC/DC coupling and IEPE conditioning.
Question 4: What is the ADC resolution of the PXI-4461?
Answer 4: It features a 24-bit resolution ADC.
Question 5: Can the PXI-4461’s sampling rate be adjusted?
Answer 5: Yes, sampling rates are software-programmable, including 44.1 kS/s and 48.0 kS/s.
