Description
The NI PCI-4461 is a PC-based Dynamic Signal Analyzer (DSA) with the part number 192419C-01 (779307-01). It is designed for various applications including sound test, automotive test, NVH (Noise, Vibration, and Harshness) analysis, and machine condition monitoring. This model features 2 AI (Analog Input) and 2 AO (Analog Output) channels, making it versatile for a wide range of measurement tasks.
The PCI-4461 boasts a 24-bit ADC (Analog-to-Digital Converter) resolution with a delta-sigma ADC type, ensuring high fidelity and precision in measurements. It supports multiple sampling rates, including 44.1 kS/s, 48.0 kS/s, 96.0 kS/s, and 192 kS/s, providing flexibility in capturing both slow and fast-changing signals. The input gain range of this device is adjustable from -20 to +30 dB in 10 dB steps, allowing users to optimize signal levels for best performance.
Signal connections can be either differential or single-ended, accommodating a variety of sensor and signal types. The PCI-4461’s dynamic range is an impressive 118 dB, with a frequency range from DC to 92 kHz. This wide frequency range makes it suitable for capturing both low-frequency signals and high-frequency phenomena. Its Total Harmonic Distortion (THD) is incredibly low at -107 dB, further emphasizing the device’s capability to deliver clean, accurate signals for analysis.
In summary, the NI PCI-4461 is an advanced PC-based DSA that excels in sound, vibration, and harshness testing, among other applications. Its high resolution, flexible sampling rates, and wide dynamic and frequency ranges make it a powerful tool for engineers and researchers working in various fields.
| Specification | Detail |
|---|---|
| Part Number | 192419C-01 (779307-01) |
| Category | PC-based DSA |
| Model | PCI-4461 |
| Description | NI PCI-4461 2AI 2AO, Mezz |
| Application | Sound test, automotive test, NVH analysis, machine condition monitoring |
| Input Channels | 2 AI |
| Output Channels | 2 AO |
| ADC Resolution | 24-bit |
| Sampling Rates | 44.1 kS/s, 48.0 kS/s, 96.0 kS/s, 192 kS/s |
| ADC Type | Delta–sigma |
| Input Gain Range | -20 to +30 dB in 10 dB steps |
| Signal Connections | Differential or single-ended |
| Dynamic Range | 118 dB |
| Frequency Range | DC to 92 kHz |
| THD | -107 dB |
| Trigger Types |



