DNx-AI-254 – 4-Channel LVDT/RVDT Interface

10yglil4-Channel LVDT/RVDT Interface

The DNx-AI-254 is a four channel LVDT/RVDT input and output simulation boards for UEI’s powerful data acquisition and control chassis. The boards are ideally suited for a wide variety of rotational and linear motion measurements in many industries and are designed to provide stimulus in avionics test and simulator applications.



  • 4 LVDT/RVDT input channels or simulated outputs
  • 16-bit resolution
  • 4, 5 and 6-wire device support
  • 2 to 7 Vrms programmable excitation per channel
  • 100 Hz to 5 kHz excitation frequency range
  • Up to 50 mA excitation current
  • Fully Isolated (Chan to Chan and Chan to Chassis)

Each of the four channels on the board may be configured as either an input channel with excitation or as an output/simulator.

The 4 input channels are compatible with 4-, 5- and 6-wire LVDT/RVDT configurations. The board’s high precision circuitry combined with each channel’s independent 16-bit A/D converters allow an overall measurement accuracy of better than 0.1%. The inputs may be read at rates up to 500 readings per second, depending upon the reference frequency.

The DNx-AI-254 also provides up to 4 channels of simulated LVDT/RVDT output that are ideal for driving simulator inputs or for use in testing LVDT/RVDT measurement products. The outputs each accept an independent excitation signal and offer 2, 3 or 4 wire outputs with 16-bit resolution and an overall accuracy of better than 0.1%.
Software for the DNx-AI-254 is provided as part of the UEI Framework. The framework provides a comprehensive yet easy to use API that supports all popular Windows programming languages as well as supporting programmers using Linux and most real-time operating systems including QNX, INtime, RT Linux and more. Finally, the framework supplies complete support for those creating applications in MATLAB/Simulink, or any application supporting ActiveX or OPC servers.

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RACKtangle ®


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