NI PXI-4461 186900T-11L Sound and Vibration Data Acquisition Module

NI PXI-4461 186900T-11L Sound and Vibration Data Acquisition Module

Product Overview

The NI PXI-4461 186900T-11L is designed for high-precision measurement and analysis of sound and vibration signals with dual inputs and dual outputs for a wide range of applications. The module is commonly used to test and measure sound and vibration signals for applications such as sound testing, vibration analysis, noise control, acoustic research, vibration test benches, structural health monitoring, and automotive testing.

Technical Specifications and Features

Dual Channel Inputs and Outputs:

Provides two 24-bit analogue input channels for high-precision sound and vibration signal acquisition.

Provides two 24-bit analogue output channels for signal generation and control.

High Precision and Low Noise:

24-bit resolution ensures that sound and vibration signals are acquired with high accuracy and low noise.

Up to 110dB dynamic range for signal measurements over a wide amplitude range.

High Sampling Rate:

Sampling rates of up to 204.8kS/s enable accurate capture of rapidly changing sound and vibration signals.

Signal generation and analysis:

Built-in signal generation function supports a variety of waveform outputs (e.g. sine wave, square wave, triangle wave, etc.) for system testing and calibration.

Supports real-time spectrum analysis for easy frequency domain analysis of sound and vibration signals.

Software compatibility:

Compatible with NI LabVIEW software, providing powerful data acquisition, signal processing and analysis functions.

Supports NI's Sound and Vibration Toolkit to simplify complex sound and vibration measurement and analysis tasks.

Modular design:

Designed as a PXI module for easy integration with other PXI modules to build versatile test and measurement systems.

Compact, modular design for easy installation, configuration and maintenance.

Industrial-grade design:

Good anti-interference ability and stability, suitable for harsh industrial environments.

Application Areas

NI PXI-4461 186900T-11L is widely used in the following areas:

Sound testing: such as microphone testing, acoustic measurement, noise analysis and other applications.

Vibration analysis: for machinery vibration monitoring, structural health monitoring, vibration analysis and other fields.

Sensor calibration: for calibration and performance testing of accelerometers and other sensors.

Automotive testing: Used in automotive engineering to monitor and analyse vehicle sound and vibration and to assess vehicle performance and comfort.

Other applications: also for audio testing, noise, vibration and acoustic vibration harshness (NVH) analysis and machine condition monitoring (MCM).

FEATURES

• Eight 0–20 or 4–20 mA outputs 

• 0.5 mA overranging 

• 12-bit resolution 

• Up to 1 kΩ load impedance (with 24 V loop supply) 

• Indicators for open current loops 

• Short-circuit protection 

• 2,300 Vrms transient overvoltage protection between the  inter-module communication bus and the I/O channels 

• –40 to 70 °C operation 

• Hot plug-and-play