University of Pittsburgh

University of California

California Institute of Technology

Piervincenzo Rizzo

Samuel Dickerson

Ritesh Misra

Amir Nasrollahi

Chiara Daraio

Francesco Lanza Di Scalea

Stefano Coccia

Ivan Bartoli

Salvatore Salamone

Apparatus include a particle array configured to propagate an incident solitary wave to an eye, a housing configured to support the particle array, and a sensor coupled to the particle array and configured to detect a return solitary wave propagating along the particle array from the eye. Methods include directing an incident solitary wave along a solitary wave particle array coupled to an eye and detecting a return solitary wave propagating along the solitary wave particle array from the eye. Methods also include estimating intraocular pressure for the eye by comparing solitary wave data to a relationship between a time of return solitary wave time of flight and an intraocular pressure.

Solitary wave-based trans-lid tonometer

Disclosed are systems, methods and articles, including an inspection system that includes at least one generator to apply energy to an object at an application point to cause waves to travel, at least partly, through the object. The system further includes at least one detector configured to detect at least a portion of the waves traveling through the object, and a statistical analyzer to perform a statistical analysis based on an output produced by the at least one detector in response to the detected portion of the waves, the statistical analysis being used to determine whether at least one defect is present in the object.

Defect detection in objects using statistical approaches

A method and apparatus for nondestructive evaluation (NDE) of structures and materials using a highly nonlinear medium for the generation and detection of one or multiple highly nonlinear pulses (or highly nonlinear waves) impinging on a material or structure. The apparatus includes pulse exciters that induce the propagation of highly nonlinear, weakly nonlinear or linear stress waves in the material, system, or structure to be inspected and/or detectors for the observation and the detection of the output waves from the material/structure being tested. The NDE method includes the use of the tunable highly nonlinear apparatus as impulse exciter alone, or in combination with an accelerometer or a nonlinear sensor to detect the outgoing pulse.

Method and apparatus for nondestructive evaluation and monitoring of materials and structures

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Pittsburgh, PA, United States of America

Piervincenzo Rizzo