NI PXI-4462 | 4-Channel Dynamic Signal Acquisition Module

Description

PXI-4462: Product OverviewThe National Instruments PXI-4462 is a specialized sound and vibration measurement module designed for PXI systems, providing four-channel dynamic signal acquisition capabilities for high-accuracy frequency-domain measurements. This module is specifically engineered for applications requiring precise audio and vibration analysis, offering software-configurable AC/DC coupling and integrated IEPE (Integrated Electronics Piezo-Electric) conditioning for direct connection to various transducers

.The PXI-4462 enables users to make precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. The module includes six gain settings that can be configured to optimize the input range for specific measurement requirements, ensuring optimal signal-to-noise ratio across different application scenarios

.Important Note:​ The PXI-4462 is no longer available​ from National Instruments. The recommended replacement is the PXIe-4464, which offers enhanced performance with 119 dB dynamic range and similar 4-input configuration

NI PXI-4462

.PXI-4462: Technical Specifications

• Model Number:​ PXI-4462
• Manufacturer:​ National Instruments
• Product Type:​ Sound and Vibration Module
• Compatible System:​ PXI Platform
• Input Channels:​ 4 channels
• Sampling Rate:​ 204.8 kS/s
• Gain Settings:​ 6 configurable gain settings
• Coupling:​ Software-configurable AC/DC coupling
• Conditioning:​ IEPE (Integrated Electronics Piezo-Electric) conditioning
• Measurement Capabilities:​ High-accuracy frequency-domain measurements
• Dynamic Range:​ Large dynamic range for transducer measurements
• Status:​ No longer available (discontinued)
• Recommended Replacement:​ PXIe-4464

Core Features & Customer ValueThe PXI-4462 delivers significant value through its specialized sound and vibration measurement capabilities, enabling precise frequency-domain analysis critical for audio and vibration applications. The module’s four independent input channels​ allow simultaneous measurement of multiple signals, while the software-configurable gain settings​ provide flexibility to optimize measurement performance for different signal levels

.The integrated IEPE conditioning​ eliminates the need for external signal conditioning for piezoelectric transducers, simplifying system integration and reducing overall system cost. The AC/DC coupling capability​ enables both DC and AC signal measurements, making the module versatile for various measurement scenarios

NI PXI-4462

.Typical Applications

• Audio Testing:​ Professional audio equipment testing, speaker characterization, acoustic analysis
• Automotive NVH:​ Noise, Vibration, and Harshness testing in automotive applications
• Machine Condition Monitoring:​ Predictive maintenance through vibration analysis
• Structural Analysis:​ Building and structural vibration monitoring
• Research and Development:​ Academic and industrial research in acoustics and vibration