1. Jim Ahlgrimm visit, 5Oct2006 1 FY07 Sensors Task Jim Ahlgrimm visit Sandia National Laboratories Mark A. Rumsey 505-844-3910 marumse@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.

2. Jim Ahlgrimm visit, 5Oct2006 2 Drivers for Blade Sensors  Diagnostic tools in lab and field testing (R&D)  Provide “missing” sensors on wind turbines  Increase energy capture  Decrease O&M costs  Smarter structures  Increase reliability

3. Jim Ahlgrimm visit, 5Oct2006 3 Sensor Issues and Challenges Data Acquisition Local Control Remote Control (SCADA) O&MModelingTesting Structural Health Monitoring Data Management ReliabilityCost

4. Jim Ahlgrimm visit, 5Oct2006 4 Sensors Applications  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 A&T – 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 Fiber Optic Sensor Patch Green = good bondline Red = disbond AANC Sensor Development

5. Jim Ahlgrimm visit, 5Oct2006 5 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)

6. Jim Ahlgrimm visit, 5Oct2006 6 FY07 Task Goals (continued) Identify players and partners  University of California at Davis (Allen, Horsley)  North Carolina A&T (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)  Clipper (Donahoe) ... Technologies  Fiberoptic Sensors  Piezoelectric / Piezoceramic  Damage Detection  Structural Health Monitoring  Acoustic Emissions

7. Jim Ahlgrimm visit, 5Oct2006 7 Why Sensors?