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NI (National Instruments) USB-4431 102.4 kS/s, 100 dB, 0.8 Hz AC/DC Coupled, 4-Input/1-Output Sound and Vibration Device
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NI (National Instruments) · USB 2.0

USB-4431

The NI USB-4431 is a USB 2.0 sound and vibration device with four simultaneous differential analog inputs, one analog output, and a maximum sample rate of 102.4 kS/s. Integrated IEPE signal conditioning supports measurements with accelerometers and microphones.

ManufacturerNI (National Instruments)
ModelUSB-4431
Part Number780164-01
Product Type102.4 kS/s, 100 dB, 0.8 Hz AC/DC Coupled, 4-Input/1-Output Sound and Vibration Device
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Max Differential Analog Input Channels4
Analog Output Channels1
Bus ConnectionUSB 2.0
Analog Input CouplingAC/DC
Maximum Sample Rate102.4 kS/s
Highpass Filter Cut-Off Frequency0.8 Hz
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Overview

Product overview

Key product information and technical features.

The USB-4431 is designed for sound and vibration measurements. Its four input channels digitize signals simultaneously and incorporate integrated electronic piezoelectric (IEPE) signal conditioning for accelerometers and microphones.

A single analog output can be synchronized with the analog inputs for stimulus-response tests. The device combines USB 2.0 connectivity with BNC signal connections and AC/DC input coupling; the specified highpass filter cut-off frequency is 0.8 Hz.

  • Four differential analog input channels with simultaneous signal digitization.
  • One analog output channel that can be synchronized with the inputs for stimulus-response testing.
  • 24-bit resolution and a maximum sample rate of 102.4 kS/s.
  • Integrated IEPE signal conditioning for accelerometers and microphones.
  • AC/DC input coupling with a specified 0.8 Hz highpass filter cut-off frequency.
  • USB 2.0 host connection and BNC signal connections.
Verified specifications

Technical data

Verified product specifications.

Maximum Number of Differential Analog Input Channels4
Number of Analog Output Channels1
Bus ConnectionUSB 2.0
Analog Input CouplingAC/DC
Maximum Sample Rate102.4 kS/s
Highpass Filter Cut-Off Frequency0.8 Hz
Front Connection TypeBNC
NI part numbers780164-01
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NI

Manufacturer

USB 2.0

Bus Connection

USB-4431

This product

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Manuals & software

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Getting Started (NI)Getting Started · ni.com
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Letter Of Volatility (NI)Letter Of Volatility · ni.com
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Dimensional Drawings (NI)Dimensional Drawings · ni.com
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Product Page (NI)Product Page · ni.com
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Shipping, warranty & returns

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Warranty
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

What measurements is the USB-4431 designed for?

The USB-4431 is designed for sound and vibration measurements, with integrated IEPE signal conditioning for accelerometers and microphones.

How many input and output channels does it provide?

It provides four differential analog inputs that digitize simultaneously and one analog output. The output can be synchronized with the inputs for stimulus-response testing.

What is the maximum sample rate?

The specified maximum sample rate is 102.4 kS/s.

What input coupling and signal connectors does it use?

The USB-4431 provides AC/DC analog input coupling and BNC signal connections. Its specified highpass filter cut-off frequency is 0.8 Hz.

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