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NI PXI-4461 - PXI Dynamic Signal Analyzer (DSA)
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NI PXI-4461 - PXI Dynamic Signal Analyzer (DSA)

The NI PXI-4461 is a high-fidelity dynamic signal acquisition (DSA) module designed to meet the demanding requirements of power industry, petrochemical, and general automation applications. Built on National Instruments’ trusted PXI platform, the PXI
20016.00
¥42726.00
Weight:0.190KG
Description
The NI PXI-4461 is a high-fidelity dynamic signal acquisition (DSA) module designed to meet the demanding requirements of power industry, petrochemical, and general automation applications. Built on National Instruments’ trusted PXI platform, the PXI

NI PXI-4461 - PXI Dynamic Signal Analyzer (DSA)

NI PXI-4461 - PXI Dynamic Signal Analyzer (DSA) Brand Image

The NI PXI-4461 is a high-fidelity dynamic signal acquisition (DSA) module designed to meet the demanding requirements of power industry, petrochemical, and general automation applications. Built on National Instruments’ trusted PXI platform, the PXI-4461 combines advanced input/output capabilities with exceptional durability and performance metrics that make it an indispensable tool for engineers and technicians engaged in vibration analysis, noise measurement, and structural testing.

At the core of the NI PXI-4461 lies its dual 24-bit simultaneous sampling analog inputs and outputs, delivering a dynamic range of up to 115 dB and a bandwidth of 24 kHz. This ensures precise capture and playback of complex signals with minimal distortion and noise, enabling highly accurate data acquisition. The module supports up to 204.8 kS/s sampling rate per channel, facilitating detailed analysis of transient and steady-state phenomena in real-time environments. Additionally, the PXI-4461 features 2 input channels paired with 2 simultaneous output channels, which are fully isolated, reducing ground loops and increasing measurement reliability even in electrically noisy industrial settings.

Durability is a vital aspect of the PXI-4461’s design. It operates reliably within the challenging environments typical of power plants and petrochemical facilities, where temperature fluctuations, vibration, and electromagnetic interference are common. The rugged PXI chassis compatibility further enhances its resilience, ensuring stable operation over long-term deployments and reducing downtime.

In practical terms, the application of PXI-4461 in the power industry includes monitoring turbine vibrations and detecting mechanical faults before they evolve into critical failures. In petrochemical plants, it assists in the precise measurement of pressure and flow-induced vibrations within reactors and pipelines, helping to optimize safety and process efficiency. For general automation, the module is ideal for complex system characterization and condition monitoring, enabling predictive maintenance strategies that improve operational uptime.

When compared with other NI automation products, the PXI-4461 stands out for its specialized focus on dynamic signal acquisition with high resolution and bandwidth. For example, while the NI USB-6255 and NI PCI-6239 offer versatile analog input/output capabilities suitable for general-purpose data acquisition, they do not match the PXI-4461’s simultaneous 24-bit ADC inputs optimized for vibration and acoustic analysis. Similarly, the NI PXI-4462 shares some features with the PXI-4461 but differs in channel count and bandwidth, making the 4461 a better choice for applications requiring dual input/output channel configurations and extended frequency response.

Alongside the NI PXI-4461, NI offers complementary modules such as the NI PXI-2554 for digital waveform generation and switching, the NI PXI-2521 for high-density digital I/O, and the NI PXI-4496 for precision voltage and temperature measurements. The NI SCXI-1127 and SCXI-1191 modules provide scalable signal conditioning, enhancing the PXI-4461’s measurement accuracy in complex test setups. For higher throughput data acquisition, the NI PCle-6320 and NI PCle-6343 provide multi-channel analog inputs, which can be paired with the PXI-4461 for integrated system designs. Additionally, the NI PXI-2796 chassis offers an ideal platform for housing the PXI-4461 alongside other PXI cards, ensuring robust and synchronized operation.

The NI PXI-4461’s blend of precision, durability, and real-time performance makes it particularly well-suited for industries where accurate dynamic measurements are critical. Its integration within NI’s broader portfolio of PXI and SCXI modules enables flexible, scalable solutions tailored to complex industrial automation challenges. Whether deployed for fault diagnostics in a power plant, vibration monitoring in petrochemical processes, or comprehensive automation system testing, the NI PXI-4461 delivers reliable, high-quality data essential for informed decision-making.

In summary, the NI PXI-4461 is a specialized dynamic signal acquisition module that excels in demanding industrial environments. Its high-resolution 24-bit inputs and outputs, robust design, and real-time capabilities position it as a leading choice among NI automation products for applications in the power industry, petrochemical sector, and general automation fields. When combined with complementary NI modules like the PXI-2554, PXI-2521, SCXI-1127, PCle-6343, and PXI-2796 chassis, users can build comprehensive, scalable test and measurement systems that drive operational excellence and innovation.

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