General Data Acquisition Features
? Eight slot PXIe chassis from NI with six PXIe 4497, 16 channel acquisition cards and controller.
? Select MXI controller card with separate control PC, or slot-0 embedded PC for control (slot-0
embedded PC system shown).
? Optional timing synchronization card for common clock across multiple units.
? Expandable to 128 channels (8 cards) in a single unit with optional 18 slot chassis.
? 204.8 Ksamples/sec per channel. Sample rate selectable in software.
? 6 TB data storage.
? Support for IEPE and voltage amplification.
? Twelve shielded InfiniBand to BNC cable bundles for NI 449x devices.
? EDAS-DS data acquisition control and real time monitoring software.
? Larger solutions configured by networking multiple systems together.
? Peripheral package including desktop monitor, keyboard and mouse included.
? Optional peripherals include rack, rack-mount kit, rack-mount BNC patch panel, UPS, drawer mount
monitor, keyboard and mouse and/or network switches. Smaller channel counts available upon request.
Software Features
? Easy, table-driven set up via EDAS-DS graphical user interface.
? Easy signal calibration.
? Network multiple units together to build larger systems using a single master control station.
? Fully integrated signal conditioning control and setup via EDAS-DS software.
? Interactive time domain data recording control in open format at a user-specified sample rate.
? Automatic time domain data recording control based on user specified event detection.
? Circular buffer time domain data storage for emergency data recovery.
? Optional frequency domain data storage using run-time spectral processing options.
? Supports and decodes IRIG-B internally.
? Native analog rotor speed decoding from multiple speed sources. Speed data stored with time domain data.
? Complete library of time-domain digital filters available including low pass, high pass and band pass.
? Store and easily switch among multiple test setups. Includes automatic detection and switching between setups
for multi telemetry transmitters.
? Capability to store test-specific meta-data such as test ID, test description, etc. within each file.
? Supports signal time-domain integration, double integration or differentiation prior to recording, or during real
time monitoring.
? Integrate low speed (parameter) data from auxiliary data systems with system high speed data for real-time
recording and monitoring using published API.
? Provides capability to construct derived data signals and make these signals available for recording and display.
An example of such a signal would be computation of principal stress from two or three strain gage rosette signals.
? Automatically transfers data from local storage to a user-specified SAN without additional user input.
? Data stream available to real-time monitoring clients over a network.
Real-Time Monitoring Features
? Real time monitoring of all dynamic data without gapping (i.e., every ensemble, or block is processed) in both the
time domain and frequency domain.
? Plots refresh at least 10 times per second unless data rates prohibit this rate.
? System performance is not impacted by the creation of plots. Creating plots does not affect system refresh, or data
recording functions.
? Plots accommodate overlays of multiple channels (except Campbell plots).
? Real time monitoring interface is dynamically configurable (does not require plots to be set up prior to testing).
? System does not limit number of plot pages that can be created.
? Ability to switch pages on the GUI dynamically and not lose data displayed on the plots upon return to the
previous page.
? Frequency domain plots support integration, double integration or differentiation.
? Axes, labels and other plot display items are dynamically configurable.
? System provides multiple screens for real time monitoring and also permits introduction of additional monitoring
clients on the network.
Real-time Engineering Diagrams
? Digital oscilloscope with user selectable rotor speed triggering.
? Spectrum Plots (amplitude vs frequency).
? Spectrum envelope plots.
? History plots (time history of time domain characteristic, or frequency domain characteristic).
? Campbell diagram - A three dimensional engineering plot with frequency as the ordinate (y-axis) and any
parameter on the abscissa (x-axis). Parameters can be any available parameter such as rotor speed, time, pressure,
temperature, geometric variable, etc. Amplitude of vibration is denoted in a number of ways including length of a
tick mark, diameter of a circle, or color intensity (z-mod).
? Campbell diagrams have capability to produce a frequency tracking plot, a spectrum envelope plot, or an order
tracking plot by interactively selecting an appropriate axis.
? Campbell diagrams are otherwise fully interactive and include zoom and data selection/tabulation.
? Limit monitoring with display on a number of different plots including Campbell, spectrum or margin plots.
? Waterfall (time and parameter) plot.
? Time-domain orbit plots.
? Order tracking plots.
? Performs real-time limit monitoring in the frequency and time domain. System accommodates frequency based
limits and parameter dependent limits (limits can change as a function of speed, for example).
? If mode frequencies and limits are available for a particular test set up, system is able to generate mode tracking
plot and display percent’s of limits interactively on relevant plots.
Data replay
? EDAS-DS allows replaying of data in the same kinds of plots provided during real time monitoring.
? Free EDAS-DV data viewer. Supports EDAS-DS data file types only.