Jentek Sensors, Incorporated

Other

David A Jablonski

Neil J Goldfine

Andrew P Washabaugh

Yanko K Sheiretov

David C Grundy

Robert J Lyons

Floyd W Spencer

Darrell E Schlicker

Christopher T Martin

Vladimir A Zilberstein

Zachary Michael Thomas

Methods and apparatus for enhancing performance curve generation, damage monitoring, and improving non-destructive testing performance. Damage standards used for performance curve generation are monitored using a non-destructive testing (NDT) sensor during a damage evolution test performed with the standard. The evolution test may be intermittently paused to permit ground truth data to be collected in addition to the NDT sensor data. A damage evolution model may be used to estimate ground truth data during the intervening periods of the damage evolution test. The NDT sensor data and ground truth data are used to generate performance curves for the NDT system. Multiple sensors may be monitored at multiple locations on the damage standard and multiple damage evolution tests may be performed with multiple damage standards.

Performance curve generation for non-destructive testing sensors

Methods and apparatus for characterizing composite materials for manufacturing quality assurance (QA), periodic inspection during the useful life, or for forensic analysis/material testing. System are provided that relate eddy-current sensor responses to the fiber layup of a composite structure, the presence of impact damage on a composite structure with or without a metal liner, volumetric stress within the composite, fiber tow density, and other NDE inspection requirements. Also provided are systems that determine electromagnetic material properties and material dimensions of composite materials from capacitive sensor inspection measurements. These properties are related to the presence of buried defects in non-conductive composite materials, moisture ingress, aging of the material due to service or environmental/thermal exposure, or changes in manufacturing quality.

Method and apparatus for non-destructive evaluation of materials

A framework for adaptively managing the life of components. A sensor provides non-destructive test data obtained from inspecting a component. The inspection data may be filtered using reference signatures and by subtracting a baseline. The filtered inspection data and other inspection data for the component is analyzed to locate flaws and estimate the current condition of the component. The current condition may then be used to predict the component's condition at a future time or to predict a future time at which the component's condition will have deteriorated to a certain level. A current condition may be input to a precomputed database to look up the future condition or time. The future condition or time is described by a probability distribution which may be used to assess the risk of component failure. The assessed risk may be used to determine whether the part should continue in service, be replaced or repaired. A hyperlattice database is used with a rapid searching method to estimate at least one material condition and one usage parameter, such as stress level for the component. The hyperlattice is also used to rapidly predict future condition, associated uncertainty and risk of failure.

Component adaptive life management

A method for manufacturing cutting knives, in particular granulator knives in which a mass of highly wear resistant material is bonded along one edge of a main body of a tougher, more ductile material, the cutting edge machined into the mass of wear resistant material, to increase the service life of the knife between sharpenings without subjecting the tool to breakage during heavy use in a granulator.

Method of manufacturing wear resistant cutting knives and granulator

A pair of straps that can be attached to a variety of beach chairs and are designed so that the straps need no adjusting buckles to fit people of different sizes without sliding off their shoulders. The straps are attached, and will hang, behind the chair when the chair is used for sitting. The straps cross over each other in a V-shape or an X-shape and will enable a person to carry the chair on his back, therefore leaving his hands free.

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Whitman, MA, United States of America

David A Jablonski