Taxonomic problems on ADC characterisation. - Raul Carneiro Martins; Helena Maria Geirinhas Ramos; Pedro Silva Girão; António Cruz Serra (ICECS, 1998)

Colored light-to-voltage Converters based Absorbance Meter. - José Miguel Dias Pereira; Octavian Postolache; Pedro Silva Girão; Helena Maria Geirinhas Ramos (Int. J. Comput., 2003)

Increasing ion Selective Electrodes Performance using Neural Networks. - Octavian Postolache; Pedro Silva Girão; José Miguel Dias Pereira; Helena Maria Geirinhas Ramos (Int. J. Comput., 2003)

A virtual instrument to test smart transducer interface modules (STIMs). - Helena Maria Geirinhas Ramos; José Miguel Dias Pereira; Vítor Viegas; Octavian Postolache; Pedro Silva Girão (IEEE Trans. Instrum. Meas., 2004)

Self-organizing maps application in a remote water quality monitoring system. - Octavian Adrian Postolache; P. M. B. Silva Girao; José Miguel Dias Pereira; Helena Maria Geirinhas Ramos (IEEE Trans. Instrum. Meas., 2005)

Dew Point and Relative-Humidity Smart Measuring System. - Octavian Postolache; P. M. B. Silva Girao; José Miguel Dias Pereira; Helena Maria Geirinhas Ramos (IEEE Trans. Instrum. Meas., 2006)

A Four-Terminal Water-Quality-Monitoring Conductivity Sensor. - Pedro M. Ramos; José Miguel Dias Pereira; Helena Maria Geirinhas Ramos; A. Lopes Ribeiro (IEEE Trans. Instrum. Meas., 2008)

Liftoff Correction Based on the Spatial Spectral Behavior of Eddy-Current Images. - A. Lopes Ribeiro; Francisco André Corrêa Alegria; Octavian Adrian Postolache; Helena Maria Geirinhas Ramos (IEEE Trans. Instrum. Meas., 2010)

Portable eddy current NDT instrument using two different implementations. - Dario Jeronimo Pasadas; Tiago Jorge Rocha; Helena Maria Geirinhas Ramos; A. Lopes Ribeiro (EUROCON, 2011)

A novel uniform eddy current probe with GMR for non destructive testing applications. - Octavian Postolache; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (EUROCON, 2011)

Detection and characterization of defects using GMR probes and artificial neural networks. - Octavian Adrian Postolache; Helena Maria Geirinhas Ramos; A. Lopes Ribeiro (Comput. Stand. Interfaces, 2011)

Remote field eddy current inspection of metallic tubes using GMR sensors. - Dario Jeronimo Pasadas; Tiago Jorge Rocha; Helena Maria Geirinhas Ramos; A. Lopes Ribeiro (I2MTC, 2013)

Velocity induced eddy currents technique to inspect cracks in moving conducting media. - Helena Maria Geirinhas Ramos; Tiago Jorge Rocha; Dario Jeronimo Pasadas; A. Lopes Ribeiro (I2MTC, 2013)

The Lift-Off Effect in Eddy Currents on Thickness Modeling and Measurement. - Jakub Kral; Radislav Smid; Helena Maria Geirinhas Ramos; A. Lopes Ribeiro (IEEE Trans. Instrum. Meas., 2013)

GMR versus differential coils in velocity induced eddy current testing. - Helena Maria Geirinhas Ramos; Tiago Jorge Rocha; Artur Lopes Ribeiro; Dario Jeronimo Pasadas (I2MTC, 2014)

ECT image analysis applying an inverse problem algorithm with Tikhonov/TV Regularization. - Dario Jeronimo Pasadas; A. Lopes Ribeiro; Helena Maria Geirinhas Ramos; Tiago Jorge Rocha (I2MTC, 2015)

Sub-surface defect detection with motion induced eddy currents in aluminium. - Tiago Jorge Rocha; Helena Maria Geirinhas Ramos; A. Lopes Ribeiro; Dario Jeronimo Pasadas (I2MTC, 2015)

SVM classification of thickness and lift-off using transient eddy current oscillation method. - Chandra S. Angani; Helena Maria Geirinhas Ramos; Tiago Jorge Rocha; Artur Lopes Ribeiro (I2MTC, 2016)

2D geometry characterization of cracks from ECT image analysis using planar coils and GMR-sensors. - Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos; Tiago Jorge Rocha (I2MTC, 2016)

Evaluation of Subsurface Defects Using Diffusion of Motion-Induced Eddy Currents. - Tiago Jorge Rocha; Helena Maria Geirinhas Ramos; Artur Lopes Ribeiro; Dario Jeronimo Pasadas (IEEE Trans. Instrum. Meas., 2016)

The dilation invariance principle in eddy-current non-destructive evaluation technique analytical justification. - Prashanth Baskaran; A. Lopes Ribeiro; Helena Maria Geirinhas Ramos (I2MTC, 2017)

Inspection of Cracks in Aluminum Multilayer Structures Using Planar ECT Probe and Inversion Problem. - Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos; Tiago Jorge Rocha (IEEE Trans. Instrum. Meas., 2017)

Localization of defects in woven-fabric type CFRP plate by time of flight of scattering guided wave. - Bo Feng 001; Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (I2MTC, 2018)

Eddy current testing of cracks using multi-frequency and noise excitation. - Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos; Bo Feng 001; Prashanth Baskaran (I2MTC, 2018)

Comparison of Inspecting Non-Ferromagnetic and Ferromagnetic Metals Using Velocity Induced Eddy Current Probe. - Bo Feng 001; Artur Lopes Ribeiro; Tiago Jorge Rocha; Helena Maria Geirinhas Ramos (Sensors, 2018)

Monitoring the Crack Growth by Measurement of Diffracted Lamb Waves. - Bo Feng 001; Nuno Espada; Helena Maria Geirinhas Ramos; Artur Lopes Ribeiro (I2MTC, 2019)

Locating and Imaging Impact Damage with an Integrated System of PZT and Eddy Current Probe. - Bo Feng 001; Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (I2MTC, 2019)

Locating Defects in Anisotropic CFRP Plates Using ToF-Based Probability Matrix and Neural Networks. - Bo Feng 001; Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (IEEE Trans. Instrum. Meas., 2019)

Machine Learning Photovoltaic String Analyzer. - Sandy Rodrigues; Gerhard Mütter; Helena Maria Geirinhas Ramos; Fernando Morgado Dias (Entropy, 2020)

Defect Classification With SVM and Wideband Excitation in Multilayer Aluminum Plates. - Dario Jeronimo Pasadas; Helena Maria Geirinhas Ramos; Bo Feng 001; Prashanth Baskaran; Artur Lopes Ribeiro (IEEE Trans. Instrum. Meas., 2020)

Guided Lamb wave tomography using angle beam transducers and inverse Radon transform for crack image reconstruction. - Dario Jeronimo Pasadas; Mohsen Barzegar; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (I2MTC, 2022)

Locating and Imaging Fiber Breaks in CFRP Using Guided Wave Tomography and Eddy Current Testing. - Dario Jeronimo Pasadas; Mohsen Barzegar; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (Sensors, 2022)

Pulse-Echo and Pitch-Catch: Ultrasonic C-Scan of Adhesively Bonded Single Lap-joints. - Mohsen Barzegar; Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (I2MTC, 2023)

Polar Coordinate for Damage Imaging of Adhesively Bonded Plates Using Ultrasonic Guided Waves and Laser Doppler Vibrometer Measurements. - Mohsen Barzegar; Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos; Yevgeniya Lugovtsova; Jannis Bulling (IEEE Trans. Instrum. Meas., 2023)

Theoretical Predictions of Perturbed Magnetic Flux Density Components Due to Narrow Flaws in ECT. - Prashanth Baskaran; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (IEEE Trans. Instrum. Meas., 2023)

TC-01: Nondestructive Evaluation and Industrial Inspection (NDE&II). - James A. Smith; Helena Maria Geirinhas Ramos (IEEE Instrum. Meas. Mag., 2023)

Baseline-Free Damage Imaging of Composite Lap Joint via Parallel Array of Piezoelectric Sensors. - Mohsen Barzegar; Artur Lopes Ribeiro; Dario Jeronimo Pasadas; Aadhik Asokkumar; Renaldas Raisutis; Helena Maria Geirinhas Ramos (Sensors, 2023)

Comparative Study on Ultrasonic C-Scan Imaging of Composite Lap Joints Using Piezoelectric Transducer: Pulse-Echo and Pitch-Catch Configurations. - Mohsen Barzegar; Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (IEEE Trans. Instrum. Meas., 2024)

I&M Around the World: Highlighting IEEE Region 9. - Sebastian Yuri Cavalcanti Catunda; Helena Maria Geirinhas Ramos; Juan Manuel Ramírez-Cortés (IEEE Instrum. Meas. Mag., 2024)

Classification of Corrosion Severity in SPCC Steels Using Eddy Current Testing and Supervised Machine Learning Models. - Lian Xie; Prashanth Baskaran; Artur Lopes Ribeiro; Francisco André Corrêa Alegria; Helena Maria Geirinhas Ramos (Sensors, 2024)

Eddy Current-Based Delamination Imaging in CFRP Using Erosion and Thresholding Approaches. - Dario Jeronimo Pasadas; Mohsen Barzegar; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (Sensors, 2024)

Enhanced Disbond Detection in CFRP Joints Using Autoencoders for Guided Wave Signal. - Mohsen Barzegar; Sahar Moradi Cherati; Muchao Zhang; Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (I2MTC, 2025)

High Sensitive ECT Probe for Detection of Deeply Buried Defects. - Lian Xie; Prashanth Baskaran; Artur Lopes Ribeiro; Francisco C. Alegria; Bo Feng 001; Helena Maria Geirinhas Ramos (I2MTC, 2025)

Reference-free damage imaging for quasi-isotropic structures using Lamb wave based on path matching. - Muchao Zhang; Mohsen Barzegar; Dario Jeronimo Pasadas; Artur Lopes Ribeiro; Helena Maria Geirinhas Ramos (I2MTC, 2025)