The FOCIS™ system comes loaded with a software suite for test setup, data collection, real-time clearance and vibration monitoring, and post-processing analysis.
FOCIS™ Software: Test Setup and Signal Monitoring
The FOCIS™ software interfaces with the FOCIS™ hardware and is primarily used to setup the test, verify proper operation, monitor the quality of the signal, and collect data. Through the FOCIS™ software, operators configure the parameters of each rotor stage to measure, setup the location of the probes and control their function (blade tip timing, blade tip clearance, once-per-revolution, etc.), test the probes with a digital oscilloscope, and verify proper data acquisition through a graphical interface.
Picture Above: Rotor Stage Configuration
Picture Above: Verification of Probe Signal Quality
Through the FOCIS™ software suite, test operators also control the instrumentation and can adjust laser power and channel gain.
Picture Above: Laser Power and Channel Gain Control
FOCIS™ Software: Clearance Measurement
FOCIS™ software can output clearance measurement as average of all blades or blade-by-blade. Minimum, maximum, and average clearance is available. Clearance data can be streamed through Modbus to an external device.
Picture Above: Blade-by-blade clearance visualization
Blade Tip Timing and Vibration Analysis Software
The FOCIS™ software suite includes advanced software used for tip timing and blade vibration analysis, both in real-time and for post-processing.
Circumferential Optimizer Software: Determine Probe Location
Choose the best placement of the optical probes around the rotor based on the vibration modes of interest with the Circumferential Optimizer.
Picture Above: Circumferential Optimizer
DAQ+ Software: Real-Time Blade Vibration Analysis
DAQ+ is the real-time blade vibration software for test monitoring and visualization of blade vibration in real time.
Picture Above: Examples of real-time blade vibration monitoring - All Blades Waterfall
Picture Above: Real-Time Vibration Monitoring (Campbell, Magnitude, Frequency and Phase plots)
BT Software: Post-Processing Blade Vibration Analysis
BT is post-processing software for deep analysis of blade vibration events, both synchronous and asynchronous.
Picture Above: Example of post-processed vibration analysis with BT software
Generate Plots of Recorded Parameters
Both DAQ+ and BT feature user-friendly interface for displaying:
- Relative & Absolute blade position
- Deflection (including automatic determination of deflection based on polynomial curve fit to remove the static blade position)
- History, Campbell, Magnitude, Phase, Frequency, and Waterfall plots are available
Our full suite of blade vibration software includes analysis modules for synchronous and asynchronous vibration.
- All blades FFT
- Identification of nodal diameter response and flutter events
- Frequency, magnitude & phase for the stage
- Identify responding engine orders via sine wave fit for all probes on a per rev basis
- Campbell, frequency, magnitude & phase for all blades
Acquisition and Analysis of Non-Tip Timing Data
DAQ+ also includes the possibility to acquire data other than tip timing / blade vibration. Examples of hardware supported include strain gauges, pressure and temperature sensors, as well as generic data acquisition cards from National Instruments.
Acquisition of non-tip timing data allows advanced processing such as:
- Comparison of vibration data obtained through strain gauges and tip timing
- Correlation of blade vibration data with pressure or other type of data
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