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4-Channel, 16-bit, LVDT/RVDT Interface

DNx-AI-254, DNA-AI-254, DNR-254, DNF-254

Features

  • 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)
4-Channel, 16-bit, LVDT/RVDT Interface
Product Style: What do the "DNx" prefixes mean? "DNA" prefix is for a Cube & MIL Cube Board, "DNR" prefix is for a Rack & MIL Rack Board , and "DNF" prefix is for a FLATRACK board.
Software/Programming: How UEI solutions are used. Hosted - Connected to a PC with Windows, Linux, QNX, VxWorks, RTX, or similar OS. Hosted also is for OPC-UA, Modbus and EtherCAT. Standalone - Controller with Linux or VxWorks OS, Simulink I/O Target or UEILogger. Available options for this product are shown in the drop down menu.
Quantity: $2800
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Typically in stock for 1-2 week delivery.

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. The boards also offer a unique LVDT/RVDT simulated output capability designed to provide stimulus in avionics test and simulator applications. 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.

Each channel provides an independent excitation output user programmable from 2 to 7 Vrms at frequencies from 50 to 5,000 Hz. The excitation output is capable of driving currents up to 50 mA, suitable for driving primary impedances as low as 90 ohms at excitations up to 6 Vrms.

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%. Each channel is capable of driving up to 50 mA at 7 Vrms without external buffering.

The DNx-AI-254 offers 350 Vrms of isolation between channels as well as between the I/O connections and the chassis. Like all UEI "Cube" and RACKtangle compatible I/O boards, the DNx-AI-254 offers operation in harsh environments and Cube systems have been tested to 5g vibration, 50g shock, -40 to +85 ºC temperatures and altitudes up to 70,000 feet.

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.

Downloads

Compatibility

  • PowerDNA
  • UEIPAC
  • UEIOPC-UA
  • UEISIM

Related Media

 

LabVIEW & UEI: Interfacing with a Synchro/Resolver and LVDT/RVDT

We show you how to quickly configure LabVIEW to receive data from a United Electronic Industries synchro/resolver I/O module. In this example, the module is measuring the position of an aircraft thruster and passing along the data to the LabVIEW software running on a standard PC laptop.