Helena Maria Geirinhas Ramos
Helena Maria Geirinhas Ramos
Instituto Telecomunicações, Instituto Superior Técnico, IST
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A four-terminal water-quality-monitoring conductivity sensor
PM Ramos, JMD Pereira, HMG Ramos, AL Ribeiro
IEEE Transactions on Instrumentation and Measurement 57 (3), 577-583, 2008
Liftoff insensitive thickness measurement of aluminum plates using harmonic eddy current excitation and a GMR sensor
A Lopes Ribeiro, HG Ramos, CJ Arez
Measurement 45 (9), 2249-2253, 2012
The lift-off effect in eddy currents on thickness modeling and measurement
J Kral, R Smid, HMG Ramos, AL Ribeiro
IEEE Transactions on Instrumentation and Measurement 62 (7), 2043-2049, 2013
Self-organizing maps application in a remote water quality monitoring system
OA Postolache, PMBS Girao, JMD Pereira, HMG Ramos
IEEE transactions on instrumentation and measurement 54 (1), 322-329, 2005
Using the Skin Effect to Estimate Crack Depths in Mettalic Structrues
HMG Ramos, O Postolache, Francisco, AL Ribeiro
International Instrumentation and Measurement Technology Conference, 1361-1366, 2009
GMR array uniform eddy current probe for defect detection in conductive specimens
O Postolache, AL Ribeiro, HG Ramos
Measurement 46 (10), 4369-4378, 2013
Magnetic sensors assessment in velocity induced eddy current testing
TJ Rocha, HG Ramos, AL Ribeiro, DJ Pasadas
Sensors and Actuators A: Physical 228, 55-61, 2015
Multibeam optical system and neural processing for turbidity measurement
OA Postolache, PMBS Girao, JMD Pereira, HMG Ramos
IEEE Sensors Journal 7 (5), 677-684, 2007
Detection and characterization of defects using GMR probes and artificial neural networks
O Postolache, HG Ramos, AL Ribeiro
Computer Standards & Interfaces 33 (2), 191-200, 2011
Inductive Probe for Flaw Detection in non-Magnetic Metallic Plates Using Eddy-Currents
AL Ribeiro, HMG Ramos
International Instrumentation and Measurement Technology Conference (IMTC …, 2008
Evaluation of portable ECT instruments with positioning capability
D Pasadas, T Jorge Rocha, HG Ramos, A Lopes Ribeiro
Measurement 45 (3), 393-404, 2011
Present and future impact of magnetic sensors in NDE
HG Ramos, AL Ribeiro
Procedia Engineering 86, 406-419, 2014
Liftoff Correction Based on the Spatial Spectral Behavior of Eddy-Current Images
AL Ribeiro, F Alegria, OA Postolache, HMG Ramos
Instrumentation and Measurement, IEEE Transactions on 59 (5), 1362-1367, 2010
An SVM approach with electromagnetic methods to assess metal plate thickness
HG Ramos, T Rocha, J Král, D Pasadas, AL Ribeiro
Measurement 54, 201-206, 2014
An IR turbidity sensor: Design and application [virtual instrument]
O Postolache, P Girao, M Pereira, H Ramos
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement …, 2002
A Virtual Instrument to Test Smart Transducer Interface Modules (STIMs)
PG Helena Ramos, M. Pereira, V. Viegas, O. Postolache
Instrumentation and Measurement Technology Conference, IMTC 2003, 772-775, 2003
A simple forward direct problem solver for eddy current non-destructive inspection of aluminum plates using uniform field probes
AL Ribeiro, HG Ramos, O Postolache
Measurement 45 (2), 213-217, 2012
Wireless water quality monitoring system based on field point technology and Kohonen maps
O Postolache, PS Girao, JMD Pereira, H Ramos
Electrical and Computer Engineering, 2003. IEEE CCECE 2003. Canadian …, 2003
An Internet and Microcontroller based Remote Operation Multi-Sensor System for Water Quality Monitoring
O Postolache, P Girão, M Pereira, H Ramos
Sensors 2002, 1532-1536, 2002
Precision timing in ocean sensor systems
J Del Río, D Toma, S Shariat-Panahi, A Manuel, HG Ramos
Measurement Science and Technology 23 (2), 025801, 2011
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