Description: FDRS 2003 is the practical hands-on application of FDR 3002 in a laboratory environment, where all previous theory, calculations, programming and ‘sensor/signal’ specifications will be interfaced to an actual DFDAU. The ARINC 429 simulator (transmitter and receiver) will serve as the primary source of digital parameter data, in parallel with several interfacing avionics subsystems, so that the digital communications aspects of the DFDAU FDRS model can be understood at the physical layer. Defects will be troubleshot and uncalibrated sensors will be adjusted to within manufacturer’s specifications.
Benefits: Practical hands on experience with DFDAU ARINC 429 32-bit inputs, conversions, physical interfaces and ARINC 717 output.
Student Level: Should be familiar with digital communications and comfortable with algebraic equations, trigonometry, calculus, & numerical analysis.
Prerequisite: FDR 3002
Class Duration: 5 days @ 8 hours per day
Class Breaks: Lunch + 2 coffee breaks
Training Certificate: Upon successful completion of the project, the student will receive a training certificate. If the project grade is less than 70%, the student will receive a course attendance certificate.
Course Outline:
DAY 1 (LAB 1)
- Setup of DFDAU sensors and avionics subsystem inputs
- Real time measurement of LVDT, RVDT, resolvers/synchros, frequency transmissions, AC Ratio, DC Ratio, & HLDC signals
- Generation of Stimulus-to-Sensor Models
DAY 2 (LAB 2)
- Real time digitizing and formatting of the sensor input including sampling and quantization
- Validation of ARINC 429 data output from Avionics subsystem, including voltage levels, signal and circuit characteristics
- Adjustment of sampling, digital resolution, refresh rates, transmission delays and range in preparation for generation of Sensor-to-Avionics subsystem Models
DAY 3 (LAB 3)
- Programming of DFDAU (AD conversion, sampling, multiplexing & dataframe word slot assignments)
- Execution and DFDAU acceptance of Avionics subsystem ARINC 429 data transmission in preparation for generation of ‘Avionics subsystem and Sensor’-to-DFDAU Model
DAY 4 (LAB 4)
- Setup & execution of DFDAU ARINC 717 transmission
- Synchronization between Digital Xm & DAE Xe
- Application of Correlation Coefficient & Quality of Fit
- Raw data file hex editor decoding of transmitted values (bin, packed, unpacked)
- Generation of DFDAU-to-DAE Model
DAY 5
- Final Project: Live testing, troubleshooting, calibration, re-engineering, and validation of complete DFDAU SSFDR system.
