A Three-Dimensional Distributed Sensor using an integrated Optical Waveguide Array
Introduction A flexible shear and pressure sensor array has been developed by researchers at the University of Washington. The sensors are fiber optic-based, and are imbedded in a thin polymer sheet to allow their use in a wide range of pressure & shear sensing applications. Technology description An array of optical waveguides form the sensing network, which is designed to distinguish between pressure, i.e., a force normal to the sensor array, and shear, or forces parallel to the surface of the array. The sensors are fabricated using MEMS processing techniques, which are scaleable to large area arrays. Because no electrical connections are required, the array can be used in high moisture environments or in applications where electromagnetic interference could affect the sensor signal. The flexible polymer sheet is conformal, allowing pressure and shear to be mapped over irregular-shaped surfaces. Business opportunity The sensor array can be used to measure pressure and shear distribution between the sole of a foot and the inside of a shoe. Measurements of this type are difficult to make because of the hostile environment within a shoe, but are necessary to diagnose foot ulcers, especially those associated with diabetes. The sensor array has additional potential to measure the ‘fit’ between an amputated limb and a prosthetic device. Stage of development Prototypes have been fabricated and initial performance data obtained. Intellectual property position This technology is available for licensing. U.S. patent protection is pending. For more information on this technology contact:Jim Roberts Technology Manager, Invention Licensing
(206) 616-1097 [email protected]
Type of Offer: Licensing
« More Science Patents
« More Optical Science Patents