Dr. Wade J. Pulliam Profile

Dr. Wade J. Pulliam

Sr Tech Advisor

SPIE Involvement:

Author

Proceedings Article | 14 August 2003 Paper

Thin-layer magnetostrictive composite films for turbomachinery fan blade damping

Wade Pulliam, Donggun Lee, Gregory Carman, Geoffrey McKnight

Proceedings Volume 5054, (2003) https://doi.org/10.1117/12.483725

KEYWORDS: Composites, Magnetism, Magnetostrictive materials, Fluctuations and noise, Finite element methods, Aluminum, Manufacturing, Thin films, Absorption, Iron

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Proceedings Article | 9 July 2002 Paper

Recent advances in magnetostrictive particulate composite technology

Wade Pulliam, Geoffrey McKnight, Gregory Carman

Proceedings Volume 4698, (2002) https://doi.org/10.1117/12.475074

KEYWORDS: Composites, Particles, Magnetism, Magnetostrictive materials, Amplifiers, Absorption, Crystals, Polymers, Manufacturing, Transducers

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Proceedings Article | 14 February 2002 Paper

High-temperature high-bandwidth fiber optic MEMS pressure-sensor technology for turbine-engine component testing

Wade Pulliam, Patrick Russler, Robert Fielder

Proceedings Volume 4578, (2002) https://doi.org/10.1117/12.456079

KEYWORDS: Sensors, Fiber optics sensors, Fiber optics, Environmental sensing, Silicon carbide, Temperature metrology, Transducers, Sensor technology, Data acquisition, Demodulation

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Acquiring accurate, transient measurements in harsh environments has always pushed the limits of available measurement technology. Until recently, the technology to directly measure certain properties in extremely high temperature environments has not existed. Advancements in optical measurement technology have led to the development of measurement techniques for pressure, temperature, acceleration, skin friction, etc. using extrinsic Fabry-Perot interferometry (EFPI). The basic operating principle behind EFPI enables the development of sensors that can operate in the harsh conditions associated with turbine engines, high-speed combustors, and other aerospace propulsion applications where the flow environment is dominated by high frequency pressure and temperature variations caused by combustion instabilities, blade-row interactions, and unsteady aerodynamic phenomena. Using micromachining technology, these sensors are quite small and therefore ideal for applications where restricted space or minimal measurement interference is a consideration. In order to help demonstrate the general functionality of this measurement technology, sensors and signal processing electronics currently under development by Luna Innovations were used to acquire point measurements during testing of a transonic fan in the Compressor Research Facility (CRF) at the Turbine Engine Research Center (TERC), WPAFB. Acquiring pressure measurements at the surface of the casing wall provides data that are useful in understanding the effects of pressure fluctuations on the operation and lifetime wear of a fan. This measurement technique is useful in both test rig applications and in operating engines where lifetime wear characterization is important. The measurements acquired during this test also assisted in the continuing development of this technology for higher temperature environments by providing proof-of-concept data for sensors based on advanced microfabrication and optical techniques.

Proceedings Article | 29 December 2000 Paper

Micromachined SiC fiber optic pressure sensors for high-temperature aerospace applications

Wade Pulliam, Patrick Russler, Richard Mlcak, Kent Murphy, Carrie Kozikowski

Proceedings Volume 4202, (2000) https://doi.org/10.1117/12.411723

KEYWORDS: Sensors, Silicon carbide, Fiber optics sensors, Sapphire, Fiber optics, Optical fibers, Waveguides, Demodulation, Environmental sensing, Silicon

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Proceedings Article | 12 June 2000 Paper

Optical fiber sensors for in-flight health monitoring

Jason Borinski, Scott Meller, Wade Pulliam, Kent Murphy, Joseph Schetz

Proceedings Volume 3986, (2000) https://doi.org/10.1117/12.388135

KEYWORDS: Sensors, Fiber optics sensors, Skin, Fiber optics, Demodulation, Fiber optics tests, Head, Fabry–Perot interferometers, Environmental sensing, Signal detection

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Proceedings Article | 27 November 1996 Paper

Multiplexing optical fiber-based pressure sensors for smart wings

Mark Jones, Paul Duncan, Ricky Crotts, Kevin Shinpaugh, Jennifer Grace, Kent Murphy, Richard Claus, Wade Pulliam, Joseph Schetz

Proceedings Volume 2838, (1996) https://doi.org/10.1117/12.259803

KEYWORDS: Transducers, Sensors, Optical fibers, Skin, Multiplexing, Fiber optics sensors, Silicon, Interferometry, Modulation, Optical alignment

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Showing 5 of 6 publications

Conference Committee Involvement (2)

Industrial and Commercial Applications of Smart Structures Technologies

16 March 2004 | San Diego, CA, United States

Industrial and Commercial Applications of Smart Structures Technologies

4 March 2003 | San Diego, California, United States

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