Our long-term goal is to develop a suite of compact, inexpensive in situ optical property sensors for use on autonomous platforms. As part of this long-term goal, our Phase I research efforts have focused on design, development, and testing of an inexpensive (nominally expendable) water property measurement system to provide environmental optical parameters in the surfzone that are critical for...

Industrial inspection protocols are qualified using mock-ups manufactured according to the same procedure as plant part. For coarse-grained castings, known for their low inspectability, relying on becomes particularly challenging owing variability of grain properties among components. Consequently, there is a keen interest in capability verify whether size component under test matches qualifica...

Measurement of nonhomogeneous special nuclear material using passive gamma techniques is difficult because it is not practical to develop standards with the characteristics of the samples. Each sample is different. And the samples must be measured nondestructively. Modeling methods must be used. The modeling methods assume homogenous distribution of radioactive and matrix material within the co...

An investigation of 3-dimesional (3D) effects on electrical impedance tomography is reported. 3D effects in measurement, simulation and analytical models are described. A 3D attenuation range (75% attenuation) from the sensing plane is suggested as one third of process vessel’s diameter. The imaging trajectory of an axially moving object is found towards the central axis of a process vessel whe...

AbstractAn EMI Camera LSI (EMcam) with a 12 x 4 on-chip 250μm x 50μm loop antenna matrix in 65nm CMOS is developed. EMcam achieves both the 2D electric scanning and 60μm-level spatial precision for the first time. The down-conversion architecture increases the bandwidth of EMcam and enables the measurement of EMI spectrum. Shared IF block scheme is proposed to alleviate the increasing power and...