Dr. Andrew P. Washabaugh Profile

Dr. Andrew P. Washabaugh

Product R&D Manager at JENTEK Sensors Inc

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Publications (7)

Proceedings Article | 9 May 2005 Paper

Health monitoring using MWM-array and IDED-array sensor networks

David Grundy, Andrew Washabaugh, Darrell Schlicker, Ian Shay, Neil Goldfine

Proceedings Volume 5770, (2005) https://doi.org/10.1117/12.606069

KEYWORDS: Sensors, Dielectrics, Coating, Sensor networks, Electrodes, Magnetic sensors, Tolerancing, Magnetism, Nondestructive evaluation, Calibration

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Proceedings Article | 11 September 2003 Paper

High-resolution inductive sensor arrays for UXO detection, identification, and clutter suppression

Neil Goldfine, Andrew Washabaugh, Darrell Schlicker, Ian Shay

Proceedings Volume 5089, (2003) https://doi.org/10.1117/12.487416

KEYWORDS: Optical spheres, Sensors, Magnetism, Aluminum, Data modeling, Image resolution, Unexploded object detection, Imaging arrays, Metals, Electromagnetism

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Proceedings Article | 1 August 2003 Paper

Remote temperature and stress monitoring using low-frequency inductive sensing

Ian Shay, Vladimir Zilberstein, Andrew Washabaugh, Neil Goldfine

Proceedings Volume 5046, (2003) https://doi.org/10.1117/12.484116

KEYWORDS: Sensors, Magnetic sensors, Magnetism, Aluminum, Temperature metrology, Magnetometers, Inspection, Remote sensing, Metals, Corrosion

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Proceedings Article | 11 June 2002 Paper

Shaped-field eddy-current sensors and arrays

Andrew Washabaugh, Vladimir Zilberstein, Darrell Schlicker, Ian Shay, David Grundy, Neil Goldfine

Proceedings Volume 4702, (2002) https://doi.org/10.1117/12.469911

KEYWORDS: Sensors, Magnetic sensors, Magnetism, Inspection, Corrosion, Calibration, Skin, Photography, Magnetometers, Aluminum

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Proceedings Article | 24 July 2001 Paper

Surface-mounted periodic field eddy current sensors for structural health monitoring

Neil Goldfine, Vladimir Zilberstein, Darrell Schlicker, Yanko Sheiretov, Karen Walrath, Andrew Washabaugh, Douglas Van Otterloo

Proceedings Volume 4335, (2001) https://doi.org/10.1117/12.434180

KEYWORDS: Sensors, Inspection, Magnetic sensors, Magnetism, Patents, Tolerancing, Structural health monitoring, Aircraft structures, Nondestructive evaluation, Head

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Surface mountable eddy current sensors are a revolutionary new concept in nondestructive inspection. These eddy current sensors can be mounted, like a strain gage, at critical locations for detection of crack initiation and monitoring of crack growth. This can be accomplished on a fatigue test article, as well as on in-service aircraft or other structures (patents pending). The mountable periodic field eddy current sensors, described in this paper, can be used as a replacement for standard eddy-current sensors without introducing new requirements. This is not the case with other proposed health monitoring sensors. For critical structures, substantially reduced inspection costs and life extension is possible with permanently mounted eddy current sensors. This is particularly true for difficult-to-access locations that require surface preparation (e.g., sealant or insulation removal) and disassembly when conventional eddy current testing is performed. By enabling eddy current testing in areas currently not accessible to conventional inspection, such as locations deep in an aircraft structure, damage tolerance can be achieved with low cost inspections. Embedded versions might even be mounted between layers, such as in a lapjoint. Surface mountable eddy current sensors are suitable for on-line monitoring and in-service inspections. This paper provides an introduction to surface mountable eddy current sensors, presents specific results from fatigue coupon tests and describes upcoming full-scale aircraft fatigue tests. Also, ongoing efforts to implement this technology on commercial and military aircraft are described. This research has been funded in part by the U.S. Navy, U.S. Air Force, JENTEK Sensors, Inc., and Lockheed Martin Aeronautics Company. The goal of this paper is to provide a basic understanding of surface mounted eddy current sensor capabilities and potential, and to promote their broader use in fatigue testing, aircraft health monitoring as well as for health monitoring of non-aerospace structures.

Proceedings Article | 22 August 2000 Paper

High-resolution inductive array imaging of buried objects

Neil Goldfine, Andrew Washabaugh, Darrell Schlicker

Proceedings Volume 4038, (2000) https://doi.org/10.1117/12.396288

KEYWORDS: Sensors, Land mines, Metals, Dielectrics, Imaging arrays, Electrodes, Image resolution, Magnetic sensors, Algorithm development, Image sensors

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Proceedings Article | 2 August 1999 Paper

New quasi-static magnetic and electric field imaging arrays and algorithms for object detection, identification, and discrimination

Neil Goldfine, Darrell Schlicker, Andrew Washabaugh, David Clark, Markus Zahn

Proceedings Volume 3710, (1999) https://doi.org/10.1117/12.357102

KEYWORDS: Sensors, Magnetism, Optical spheres, Metals, Land mines, Magnetic sensors, Image resolution, Detection and tracking algorithms, Image sensors, Patents

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Showing 5 of 7 publications

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