Jim Ahlgrimm visit, 5Oct2006

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• FY07 Sensors Task
• Jim Ahlgrimm visit
• Sandia National Laboratories
• Mark A. Rumsey
• 505-844-3910
• marumse_at_sandia.gov
• October 5, 2006

Sandia is a multiprogram laboratory operated by
Sandia Corporation, a Lockheed Martin
Company,for the United States Department of
Energy under contract DE-AC04-94AL85000.
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Drivers for Blade Sensors

• Diagnostic tools in lab and field testing (RD)
• Provide missing sensors on wind turbines
• Increase energy capture
• Decrease OM costs
• Smarter structures
• Increase reliability

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Sensor Issues and Challenges
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Sensors Applications
Fiber Optic Sensor Patch

• Current Technologies and Efforts
• Strain gages, modal analysis, ultrasonic and
  acoustic emission NDT, infrared thermography,
  fiber optics, PZT, photoelastic analysis,
  shearography, LDV, ...
• SNL Structural Dynamics Department
• FAA-SNL Airworthiness Assurance NDT Center (AANC)
• NREL/NWTC test support
• North Carolina AT Piezoelectric Sensor
  Networks (Structural Health Monitoring )
• University of California at Davis Low-cost
  Fiber Optic Interrogator
• NASA Piezoceramic Transducer/Actuator (Damage
  Detection and SHM)
• SPA Fiber Optic Sensor System (Blade Shape)

NASA PZT Sensor
AANC Sensor Development
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FY07 Task Goals

• Advance the UC-Davis Low-cost Interrogator
• Address sensor issues
• Manufacturability (material compatibility,
  egress)
• Reliability (accelerated aging, robustness,
  accuracy)
• Advanced control strategies
• Quantify the impact of sensors
• Intimacy
• Energy Capture
• Cost of Energy
• Conference paper (AWEA, SPIE, IMAC)
• White paper (summary of FY07 efforts)

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FY07 Task Goals (continued)

• Identify players and partners
• University of California at Davis (Allen,
  Horsley)
• North Carolina AT (Sundaresan)
• University of Cincinnati (Schulz)
• Physical Acoustics Corporation (Beattie)
• SPA/Aether (Kiddy)
• NASA (Werlink)
• LANL (Farrar)
• University of California at San Diego (Todd)
• Virginia Tech (Inman)
• Extreme Diagnostics (Owens)

• Technologies
• Fiberoptic Sensors
• Piezoelectric / Piezoceramic
• Damage Detection
• Structural Health Monitoring
• Acoustic Emissions

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Why Sensors?