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Search Results - lalita+udpa
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PMU-Embedded Analytics for Online Event Detection and Classification in Power Grids
The energy requirement of the world is increasing exponentially every year. With the power demand sites concentrated in the region with the highest population density, energy production sites must be located remotely. This isolation requires lengthy and complicated grids to be designed and manufactured to transmit power over long distances. Grid failures...
Published: 7/30/2024
|
Inventor(s):
Payman Dehghanian
,
Shiyuan Wang
,
Li Li
Keywords(s):
Category(s):
Technology Classifications > Industrial or Consumer Tech > Energy Infrastructure and Environment
Nondestructive Eddy Current Probe for Tube Inspection
Executive SummaryA particular issue of interest to industry is the inspection of tubular goods and systems. A variety of eddy current probes have been developed for inspecting structural components for controlling quality as well as part of maintenance procedures. Current probes have a number of limitations including; inability to detect flaw in all...
Published: 2/17/2023
|
Inventor(s):
Satish Udpa
,
Lalita Udpa
,
Chaofeng Ye
,
Yue Huang
Keywords(s):
Category(s):
Test and Measurement
Transceiver Rotating Field Nondestructive Inspection Probe
Executive SummaryEddy Current Testing (ECT) is a method for in-situ determination of defects in conductive materials. A particular issue of interest to industry is the inspection of tubular goods. Current bobbin coils probes are not suitable for detecting circumferential defects in tubes. Rotating probe lift-off could obscure defects. There is a need...
Published: 8/20/2022
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Inventor(s):
Satish Udpa
,
Lalita Udpa
,
Chaofeng Ye
Keywords(s):
Category(s):
Analytical Instruments
,
Test and Measurement
GPU-Based Eddy Current Nondestructive Evaluation System for Steel Plates
Executive SummaryEddy Current Testing (ECT) is a well-established method for in-situ determination of defects in conductive materials offering the ability to perform nondestructive evaluation without compromising equipment. Simple ECT can detect defects but often does not provide enough detail to determine whether or not a defective piece of equipment...
Published: 8/20/2022
|
Inventor(s):
Samuel (aka Jeevan) Hoole
,
Sivamayam Sivasuthan
,
Victor Karthik
,
Paramsothy Jayakumar
,
Ravi Thyagarajan
,
Lalita Udpa
,
Arunasalam Rahunanthan
Keywords(s):
Category(s):
Analytical Instruments
,
Computer Software
,
Data Processing/Analysis
Distributed Feedback Fiber Laser Pumped by Multimode Diode Lasers
Researchers at the University of Arizona College of Optical Sciences and Canada's Carleton University recently succeeded in fabricating high reflectivity (>99%) Fiber Bragg Gratings (FBGs) into phosphate glass fibers using UV light and a phase mask technique. With this new manufacturing technique, fiber lasers can be created as single monolithic...
Published: 4/3/2023
|
Inventor(s):
Nasser Peyghambarian
,
Axel Schülzgen
,
Li Li
,
Jacques Albert
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics
,
Technology Classifications > Imaging & Optics > Lasers & Other Sources
All-Fiber Multicore Fiber Laser Devices
Researchers at the University of Arizona have developed a compact, power-scalable, alignment-free fiber laser that takes a new approach to stabilizing phase-locked operation of multi-core fiber lasers by completely removing all free space optical components. This high-brightness, all-fiber laser package uses passive optical fiber spliced at both ends...
Published: 4/3/2023
|
Inventor(s):
Nasser Peyghambarian
,
Axel Schülzgen
,
Li Li
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics
,
Technology Classifications > Imaging & Optics > Fiber Optics
,
Technology Classifications > Imaging & Optics > Lasers & Other Sources